Diffen - Compare Anything. Diffen. Discern. Decide.

Overview

Snoop Summary for diffen.com

This is a free and comprehensive report about diffen.com. Diffen.com is hosted in United States on a server with an IP address of 104.26.8.153, where the local currency is USD and English is the local language. Diffen.com is expected to earn an estimated $92 USD per day from advertising revenue. The sale of diffen.com would possibly be worth $67,154 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Diffen.com receives an estimated 21,750 unique visitors every day - a massive amount of traffic! This report was last updated 19th September, 2022.

About diffen.com

Site Preview:
Title:	Diffen - Compare Anything. Diffen. Discern. Decide.
Description:	Compare anything to find similarities and differences. Diffen is the largest collection of unbiased comparisons in the world. Read, improve or create comparisons.
Keywords and Tags:	education, popular, public information, reference
Related Terms:	anything, banking comparisons, bazuka anything, beyond compare 4, compare folders, comparisons, cpu compare, differences, generational differences, gpu compare
Fav Icon:
Age:	Over 17 years old
Domain Created:	5th February, 2007
Domain Updated:	3rd April, 2021
Domain Expires:	5th February, 2031

Review

Snoop Score

3/5 (Great!)

Valuation

$67,154 USD

Note: All valuation figures are estimates.

Popularity

High

Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank:	34,386
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority:	0
Moz Page Authority:	0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors:	21,750
Monthly Visitors:	662,001
Yearly Visitors:	7,938,750

Note: All visitors figures are estimates.

Visitors By Country

Revenue

Daily Revenue:	$92 USD
Monthly Revenue:	$2,800 USD
Yearly Revenue:	$33,572 USD

Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top Ranking Keywords (US)

Domain Analysis

	Value	Length
Domain:	diffen.com	10
Domain Name:	diffen	6
Extension (TLD):	com	3

Expiry Check:

Page Speed Analysis

Average Load Time:	1.29 seconds
Load Time Comparison:	Faster than 70% of sites

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

PWA

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.diffen.com/

Updated: 19th September, 2022

2.39 seconds

First Contentful Paint (FCP)

67%

16%

17%

0.00 seconds

First Input Delay (FID)

98%

1%

Simulate loading on desktop

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for diffen.com. This includes details about optimizing page load times which can result in a better user experience.

Passing (56)
Failing (2)

Metrics

First Contentful Paint — 0.4 s
The time taken for the first image or text on the page to be rendered.

Time to Interactive — 0.4 s
The time taken for the page to become fully interactive.

Speed Index — 0.6 s
The time taken for the page contents to be visibly populated.

Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Largest Contentful Paint — 0.9 s
The timing of the largest text or image that is painted.

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 30 ms
Users could experience a delay when interacting with the page.

First Meaningful Paint — 0.4 s
The time taken for the primary content of the page to be rendered.

Network Requests
Below is a list of network requests that were made during page load.

URL	Protocol	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://diffen.com/	http/1.1	0	414.05399993528	647	0	301	text/html
https://www.diffen.com/	h2	414.40499993041	476.67000000365	5369	17335	200	text/html	Document
https://www.diffen.com/css/img/diffen-logo-264px.png	h2	485.32599990722	543.74199989252	2239	1761	200	image/png	Image
https://www.diffen.com/css/img/diffen.png	h2	485.4209999321	544.75099989213	4720	4241	200	image/png	Image
https://www.googletagmanager.com/gtag/js?id=G-68854RYLK1	h2	492.38999991212	519.50099994428	76811	216998	200	application/javascript	Script
https://static.diffen.com/uploadz/d/dc/thumb_portable-vs-window-air-conditioner.jpg	h2	520.21699992474	594.24799995031	4345	3588	200	image/jpeg	Image
https://static.diffen.com/uploadz/5/51/thumb_humidifier-vs-vaporizer.jpg	h2	520.37599997129	602.06699999981	3206	2442	200	image/jpeg	Image
https://static.diffen.com/uploadz/6/6b/thumb_electric-vs-gas-heater.jpg	h2	520.46699996572	599.48199999053	4408	3648	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/2/27/275086.jpg	h2	520.55199991446	601.85400000773	3156	2394	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/f/f7/f73b8f.jpg	h2	520.62999992631	600.29799991753	4149	3387	200	image/jpeg	Image
https://static.diffen.com/uploadz/b/b8/thumb_hdd-vs-ssd.jpg	h2	520.71899990551	587.01499993913	4608	3838	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/5/5b/5bfdcb.jpg	h2	520.84199991077	599.88599992357	3628	2866	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/3/37/37fdd1.jpg	h2	521.45799994469	597.16000000481	3128	2371	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/c/c5/c5eb4c.jpg	h2	522.32799993362	586.12499991432	2894	2130	200	image/jpeg	Image
https://www.diffen.com/css/img/sprite64.png	h2	524.70099995844	581.59699989483	3433	2954	200	image/png	Image
https://static.diffen.com/tnimgs/hashtree/6/67/673fd5.jpg	h2	532.2809999343	605.22999998648	3569	2801	200	image/jpeg	Image
https://static.diffen.com/uploadz/4/46/thumb_buying-vs-renting.jpg	h2	532.45299996343	604.71699992195	5102	4339	200	image/jpeg	Image
https://static.diffen.com/uploadz/6/69/thumb_limit-vs-stop-order.jpg	h2	533.60399999656	594.56899994984	4883	4124	200	image/jpeg	Image
https://static.diffen.com/uploadz/8/8a/thumb_sashimi-vs-sushi.jpg	h2	534.25399994012	600.07599997334	5046	4265	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/9/9f/9f4ece.jpg	h2	534.46399990935	596.30299999844	2949	2193	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/5/53/5307a9.jpg	h2	534.54799996689	618.42899990734	4910	4133	200	image/jpeg	Image
https://static.diffen.com/uploadz/3/3d/E2c54e.jpg	h2	534.63499993086	599.68499990646	5231	4468	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/9/94/94a315.jpg	h2	535.22999992128	645.82599990536	4796	4022	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/f/f4/f4f45d.jpg	h2	535.71599989664	597.42199990433	11820	11043	200	image/jpeg	Image
https://static.diffen.com/js/home6.js	h2	537.10099996533	602.45099989697	39498	107507	200	application/javascript	Script
https://www.google-analytics.com/analytics.js	h2	537.26399992593	541.89899994526	20631	50205	200	text/javascript	Script
https://fonts.googleapis.com/css?family=Ubuntu:500	h2	541.46599990781	562.11999990046	1268	1736	200	text/css	Stylesheet
https://www.google-analytics.com/g/collect?v=2&tid=G-68854RYLK1&gtm=2oe9e0&_p=1271438779&cid=2081002014.1663582166&ul=en-us&sr=800x600&_z=ccd.v9B&_s=1&sid=1663582166&sct=1&seg=0&dl=https%3A%2F%2Fwww.diffen.com%2F&dt=Diffen%20-%20Compare%20Anything.%20Diffen.%20Discern.%20Decide.&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.pgtype=Homepage&ep.ident=Anon		585.41899989359	595.9220000077	0	0	-1		Ping
https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyNPYZvgw.woff2	h2	593.54599996004	599.24199990928	15172	14244	200	font/woff2	Font
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j96&tid=UA-2544292-1&cid=2081002014.1663582166&jid=318983020&gjid=1726063158&_gid=1778466074.1663582166&_u=YCDAgEABAAAAAE~&z=609425571	h2	619.59499993827	624.91699995007	686	2	200	text/plain	XHR
https://www.google-analytics.com/collect?v=1&_v=j96&a=1271438779&t=pageview&_s=1&dl=https%3A%2F%2Fwww.diffen.com%2F&ul=en-us&de=UTF-8&dt=Diffen%20-%20Compare%20Anything.%20Diffen.%20Discern.%20Decide.&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=YCDAgEAB~&jid=318983020&gjid=1726063158&cid=2081002014.1663582166&tid=UA-2544292-1&_gid=1778466074.1663582166&cd2=Homepage&cd3=Anon&z=1593778571	h2	621.47399992682	627.48599995393	597	35	200	image/gif	Image
https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j96&tid=UA-2544292-1&cid=2081002014.1663582166&jid=318983020&_u=YCDAgEABAAAAAE~&z=196973970	h2	636.88999996521	647.78899995144	673	42	200	image/gif	Image

Show Details

Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
482.146	9.491
495.115	27.245
524.486	11.267
540.827	6.76
547.654	12.726
562.376	25.448
591.924	5.017
599.954	21.608
638.99	13.031
653.848	6.138

Show Details

Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources
Resources, such as JavaScript and style sheets, can block the first paint of the page. Diffen.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

Properly size images — Potential savings of 8 KiB
Images can slow down the page's load time. Diffen.com should consider serving more appropriate-sized images.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://static.diffen.com/tnimgs/hashtree/f/f4/f4f45d.jpg	11043	8282

Show Details

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Diffen.com should consider lazy-loading offscreen and hidden images.

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Diffen.com should consider minifying CSS files.

Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Diffen.com should consider minifying JS files.

Reduce unused CSS
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Diffen.com should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.

Reduce unused JavaScript — Potential savings of 56 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.googletagmanager.com/gtag/js?id=G-68854RYLK1	76811	30634
https://static.diffen.com/js/home6.js	39498	26385

Show Details

Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.

Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.

Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.

Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.

Initial server response time was short — Root document took 60 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

URL	Time Spent (Ms)
https://www.diffen.com/	63.258

Show Details

Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Diffen.com should avoid multiple or unnecessary page redirects.

URL	Time Spent (Ms)
http://diffen.com/	190
https://www.diffen.com/	0

Show Details

Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Diffen.com should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.

Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.

URL	Potential Savings (Ms)
https://www.diffen.com/css/img/diffen-logo-264px.png	0

Show Details

Avoids enormous network payloads — Total size was 248 KiB
Large network payloads can cost users money and are linked to long load times.

URL	Transfer Size (Bytes)
https://www.googletagmanager.com/gtag/js?id=G-68854RYLK1	76811
https://static.diffen.com/js/home6.js	39498
https://www.google-analytics.com/analytics.js	20631
https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyNPYZvgw.woff2	15172
https://static.diffen.com/tnimgs/hashtree/f/f4/f4f45d.jpg	11820
https://www.diffen.com/	5369
https://static.diffen.com/uploadz/3/3d/E2c54e.jpg	5231
https://static.diffen.com/uploadz/4/46/thumb_buying-vs-renting.jpg	5102
https://static.diffen.com/uploadz/8/8a/thumb_sashimi-vs-sushi.jpg	5046
https://static.diffen.com/tnimgs/hashtree/5/53/5307a9.jpg	4910

Show Details

Uses efficient cache policy on static assets — 1 resource found
Diffen.com can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.

URL	Cache TTL (Ms)	Transfer Size (Bytes)
https://www.google-analytics.com/analytics.js	7200000	20631

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Avoids an excessive DOM size — 165 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.

Statistic	Element	Value
Total DOM Elements		165
Maximum DOM Depth	vs	7
Maximum Child Elements	Featured Comparisons Home Portable vs Window Air Conditioner Humidifier vs Vapo…	11

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Avoid chaining critical requests — 1 chain found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Diffen.com should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.

JavaScript execution time — 0.0 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

URL	Total CPU Time (Ms)	Script Evaluation (Ms)	Script Parse (Ms)
https://www.diffen.com/	71.213	5.246	1.386

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Minimizes main-thread work — 0.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

Category	Time Spent (Ms)
Script Evaluation	82.46
Other	38.044
Style & Layout	36.822
Rendering	15.937
Script Parsing & Compilation	6.965
Parse HTML & CSS	3.823
Garbage Collection	2.868

Show Details

Keep request counts low and transfer sizes small — 32 requests • 248 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.

Resource Type	Requests	Transfer Size (Bytes)
Total	32	253572
Script	3	136940
Image	23	93490
Font	1	15172
Document	1	5369
Other	3	1333
Stylesheet	1	1268
Media	0	0
Third-party	8	115838

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Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.

Third-Party	Transfer Size (Bytes)	Main-Thread Blocking Time (Ms)
SHOW DETAILS	76811	0
SHOW DETAILS	21228	0
SHOW DETAILS	16440	0
SHOW DETAILS	686	0
SHOW DETAILS	673	0

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Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).

Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.

Element
Diffen logo

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Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.

Element
Diffen logo

Show Details

Avoid large layout shifts — 2 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.

Element	CLS Contribution
Compare Anything ››	0.00016592242360564
INSURANCE	0.00010729650059831

Show Details

Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.

Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.

Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.

Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.

URL	Potential Savings (Ms)
https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyNPYZvgw.woff2	5.6959999492392

Show Details

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of diffen.com on mobile screens.

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of diffen.com. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.

The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.

`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.

No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.

`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.

`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.

ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.

ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.

ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.

`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.

Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.

`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.

`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.

ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.

ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.

ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.

`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.

`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.

`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.

Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.

Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.

Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.

Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.

Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.

List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.

Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.

`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.

`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Diffen.com may provide assistance to deaf or hearing-impaired users with captions on videos.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.

Failing Elements
© All rights reserved.
Terms of use
Privacy policy

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Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.

Failing Elements
Home

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Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.

Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.

Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.

The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.

User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.

Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.

Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.

Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.

Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.

HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that diffen.com should incorporate. This includes practices such as protecting pages with HTTPS.

Passing (14)
Failing (2)

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).

Description	Directive	Severity
script-src directive is missing. This can allow the execution of unsafe scripts.	script-src	High
Missing object-src allows the injection of plugins that execute unsafe scripts. Consider setting object-src to 'none' if you can.	object-src	High

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Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.

Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.

Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.

Name	Version
jQuery	1.12.4

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Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.

No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.

No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.

Insecure URL	Request Resolution
http://diffen.com/	Allowed

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Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Library Version	Vulnerability Count	Highest Severity
SHOW DETAILS	4	Medium

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SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for diffen.com. This includes optimizations such as providing meta data.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.

Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.

Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.

Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.

Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.

robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.

Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of diffen.com. This includes details about web app manifests.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.

Failure reason
No manifest was fetched

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PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data

Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data

Does not have a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of diffen.com on mobile screens.

Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.

Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.

Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

PWA

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.diffen.com/

Updated: 19th September, 2022

1.36 seconds

First Contentful Paint (FCP)

85%

10%

5%

0.01 seconds

First Input Delay (FID)

93%

5%

2%

Simulate loading on mobile

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for diffen.com. This includes details about optimizing page load times which can result in a better user experience.

Passing (56)
Average (3)

Metrics

First Contentful Paint — 1.5 s
The time taken for the first image or text on the page to be rendered.

Time to Interactive — 3.5 s
The time taken for the page to become fully interactive.

Speed Index — 1.5 s
The time taken for the page contents to be visibly populated.

Total Blocking Time — 140 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Largest Contentful Paint — 2.2 s
The timing of the largest text or image that is painted.

Cumulative Layout Shift — 0
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

First Meaningful Paint — 1.5 s
The time taken for the primary content of the page to be rendered.

Network Requests
Below is a list of network requests that were made during page load.

URL	Protocol	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://diffen.com/	http/1.1	0	104.69399997965	646	0	301	text/html
https://www.diffen.com/	h2	105.08700017817	168.21900010109	4711	14565	200	text/html	Document
https://www.diffen.com/css/img/diffen-logo-264px.png	h2	179.84300013632	195.41799998842	2239	1761	200	image/png	Image
https://www.diffen.com/css/img/diffen.png	h2	179.99900016002	223.66799996234	4720	4241	200	image/png	Image
https://www.googletagmanager.com/gtag/js?id=G-68854RYLK1	h2	185.75299996883	214.75100005046	76858	217149	200	application/javascript	Script
https://static.diffen.com/uploadz/d/dc/thumb_portable-vs-window-air-conditioner.jpg	h2	215.39800008759	237.68800008111	4353	3588	200	image/jpeg	Image
https://static.diffen.com/uploadz/5/51/thumb_humidifier-vs-vaporizer.jpg	h2	215.50100017339	239.63399999775	3202	2442	200	image/jpeg	Image
https://static.diffen.com/uploadz/6/6b/thumb_electric-vs-gas-heater.jpg	h2	215.59400018305	692.40300008096	4412	3648	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/2/27/275086.jpg	h2	215.70400008932	242.11400002241	3157	2394	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/f/f7/f73b8f.jpg	h2	216.18700004183	241.18999997154	4155	3387	200	image/jpeg	Image
https://static.diffen.com/uploadz/b/b8/thumb_hdd-vs-ssd.jpg	h2	216.55400004238	238.04500000551	4600	3838	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/5/5b/5bfdcb.jpg	h2	216.75799996592	247.1610000357	3622	2866	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/3/37/37fdd1.jpg	h2	217.11200010031	240.76700001024	3141	2371	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/c/c5/c5eb4c.jpg	h2	217.40600001067	241.7930001393	2894	2130	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/6/67/673fd5.jpg	h2	217.57300011814	279.63900007308	3561	2801	200	image/jpeg	Image
https://static.diffen.com/uploadz/4/46/thumb_buying-vs-renting.jpg	h2	218.03400013596	276.17700002156	5105	4320	200	image/jpeg	Image
https://static.diffen.com/uploadz/6/69/thumb_limit-vs-stop-order.jpg	h2	219.66499998234	244.26400009543	4881	4124	200	image/jpeg	Image
https://static.diffen.com/uploadz/8/8a/thumb_sashimi-vs-sushi.jpg	h2	220.29900015332	242.68100014888	5042	4265	200	image/jpeg	Image
https://www.google-analytics.com/analytics.js	h2	222.73600008339	228.12800016254	20630	50205	200	text/javascript	Script
https://www.diffen.com/css/img/sprite64.png	h2	227.03499998897	252.81299999915	3433	2954	200	image/png	Image
https://static.diffen.com/tnimgs/hashtree/9/9f/9f4ece.jpg	h2	241.67500017211	268.57900014147	2957	2193	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/5/53/5307a9.jpg	h2	243.11699997634	279.90199998021	4914	4133	200	image/jpeg	Image
https://static.diffen.com/uploadz/3/3d/E2c54e.jpg	h2	243.9580000937	279.24500009976	5225	4468	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/9/94/94a315.jpg	h2	244.7880001273	271.19800006039	4797	4022	200	image/jpeg	Image
https://static.diffen.com/tnimgs/hashtree/f/f4/f4f45d.jpg	h2	244.92800002918	293.44400018454	11820	11043	200	image/jpeg	Image
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j96&tid=UA-2544292-1&cid=1011962733.1663582188&jid=319774404&gjid=1546594981&_gid=1618349870.1663582188&_u=YGBAgEABAAAAAE~&z=1720986707	h2	307.78999999166	311.8549999781	686	2	200	text/plain	XHR
https://www.google-analytics.com/collect?v=1&_v=j96&a=473124224&t=pageview&_s=1&dl=https%3A%2F%2Fwww.diffen.com%2F&ul=en-us&de=UTF-8&dt=Diffen%20-%20Compare%20Anything.%20Diffen.%20Discern.%20Decide.&sd=24-bit&sr=360x640&vp=330x586&je=0&_u=YGBAgEAB~&jid=319774404&gjid=1546594981&cid=1011962733.1663582188&tid=UA-2544292-1&_gid=1618349870.1663582188&cd2=Homepage&cd3=Anon&z=1366453112	h2	308.27100016177	312.32000002638	597	35	200	image/gif	Image
https://www.google.com/ads/ga-audiences?t=sr&aip=1&_r=4&slf_rd=1&v=1&_v=j96&tid=UA-2544292-1&cid=1011962733.1663582188&jid=319774404&_u=YGBAgEABAAAAAE~&z=1822503851	h2	334.78500018828	344.50500016101	673	42	200	image/gif	Image
https://www.google-analytics.com/g/collect?v=2&tid=G-68854RYLK1&gtm=2oe9e0&_p=473124224&cid=1011962733.1663582188&ul=en-us&sr=360x640&uaa=&uab=&uafvl=&uamb=1&uam=Moto%20G4&uap=Android&uapv=6.0&uaw=0&_z=ccd.v9B&_s=1&sid=1663582187&sct=1&seg=0&dl=https%3A%2F%2Fwww.diffen.com%2F&dt=Diffen%20-%20Compare%20Anything.%20Diffen.%20Discern.%20Decide.&en=page_view&_fv=1&_ss=1&_ee=1&ep.pgtype=Homepage&ep.ident=Anon		369.63900015689	376.94600014947	0	0	-1		Ping

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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
173.168	11.663
188.81	30.587
219.953	6.133
226.896	16.451
274.659	34.616
314.908	18.968
337.947	34.107

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Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources
Resources, such as JavaScript and style sheets, can block the first paint of the page. Diffen.com should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

Properly size images
Images can slow down the page's load time. Diffen.com should consider serving more appropriate-sized images.

Defer offscreen images — Potential savings of 7 KiB
Time to Interactive can be slowed down by resources on the page. Diffen.com should consider lazy-loading offscreen and hidden images.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.diffen.com/css/img/diffen.png	4241	4241
https://www.diffen.com/css/img/sprite64.png	2954	2954