C — https://css-tricks.com | BeaverCheck Audit

Site Health

Score: 74 / 100

Based on 8 categories, 0 sections

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

Top Priorities (5)

Content-Security-Policy header is missing

Security › Security Headers

HSTS header is missing

Security › Security Headers

No Content-Security-Policy header found

Security › Content Security Policy

1 control(s) without accessible label

Accessibility › Form Accessibility

1 image-in-link without alt text

Accessibility › Alt Text Quality

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.14 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.16 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

297 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.036

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.71 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

9.69 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:80.41 source:map[type:text value:[unattributed]]]]

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

URL	Transfer Size	Duration
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	26.1 KiB	150 ms
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	319 B
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	8.1 KiB
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	1.0 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/style.css?ver=1736090407000	22.3 KiB	150 ms
/wp-content/plugins/jetpack/jetpack_vendor/automattic/jet...	5.9 KiB	150 ms

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Request	Cache TTL	Transfer Size
/avatar/ae0467bce26cf281ae92243a6000639eb4efaed23b953798b...	300.0 s	52.1 KiB
/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	300.0 s	44.6 KiB
/avatar/f3ef01df3d5f430bc5ee3f7caa29a40da482ee4a474bed621...	300.0 s	32.4 KiB
/avatar/9c8d0ae709a994f79f5b0223015cbf1972cedc6009f168d75...	300.0 s	31.4 KiB
/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	300.0 s	29.6 KiB
/analytics.js/v1/nnmtLrk127wcC9ggBpAutRr4F4x4TMVz/analyti...	120.0 s	28.8 KiB
/avatar/c9b682679cc38f0781d644b24d6fa5b2c43447f34bf4ba130...	300.0 s	22.6 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	300.0 s	14.0 KiB
/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	300.0 s	13.7 KiB
/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...	300.0 s	11.4 KiB
/notice?domain=css-tricks.com&c=teconsent&js=nj&noticeTyp...	3600.0 s	13.1 KiB
/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	300.0 s	9.8 KiB
/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	300.0 s	8.2 KiB
/avatar/41a6f9778d12dfedcc7ec3727d64a12491d75d9a65d4b9323...	300.0 s	7.0 KiB
/avatar/22a09bfa7640eebbdc49e403fab3691c293a5b8296ba307e9...	300.0 s	5.7 KiB
/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...	300.0 s	4.1 KiB
/avatar/6bc7516fbadd709999aadcac03fbf567e721c035d53e9c14a...	300.0 s	3.6 KiB
public.codepenassets.com/embed/index.js	259200.0 s	3.3 KiB
/avatar/0bb46f96dd1a017438d4a1cf85010939ce5836566fedb4fb4...	300.0 s	672 B

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

	URL	Resource Size	Est Savings
article#mini-post-363766 > div.author-row > a > img.avatar `article#mini-post-363766 > div.author-row > a > img.avatar`	/avatar/ae0467bce26cf281ae92243a6000639eb4efaed23b953798b...	51.5 KiB	50.7 KiB
article#mini-post-391705 > div.author-row > a > img.avatar `article#mini-post-391705 > div.author-row > a > img.avatar`	/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	44.1 KiB	43.3 KiB
article#mini-post-307668 > div.author-row > a > img.avatar `article#mini-post-307668 > div.author-row > a > img.avatar`	/avatar/f3ef01df3d5f430bc5ee3f7caa29a40da482ee4a474bed621...	31.9 KiB	31.1 KiB
article#mini-post-392714 > div.author-row > a > img.avatar `article#mini-post-392714 > div.author-row > a > img.avatar`	/avatar/9c8d0ae709a994f79f5b0223015cbf1972cedc6009f168d75...	31.0 KiB	30.2 KiB
article#mini-post-391573 > div.author-row > a > img.avatar `article#mini-post-391573 > div.author-row > a > img.avatar`	/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	29.1 KiB	28.3 KiB
article#mini-post-391781 > div.author-row > a > img.avatar `article#mini-post-391781 > div.author-row > a > img.avatar`	/avatar/c9b682679cc38f0781d644b24d6fa5b2c43447f34bf4ba130...	22.1 KiB	21.3 KiB
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`	/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	13.2 KiB	12.4 KiB
article#mini-post-392606 > div.author-row > a > img.avatar `article#mini-post-392606 > div.author-row > a > img.avatar`	css-tricks.com/wp-content/uploads/2025/02/lee_profile-modified-1-80x80.png	12.4 KiB	11.6 KiB
article#mini-post-391766 > div.author-row > a > img.avatar `article#mini-post-391766 > div.author-row > a > img.avatar`	css-tricks.com/wp-content/uploads/2024/07/juan-diego-rodriguez-80x80.png	10.3 KiB	9.5 KiB
article#mini-post-390979 > div.author-row > a > img.avatar `article#mini-post-390979 > div.author-row > a > img.avatar`	/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	13.5 KiB	9.4 KiB
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`	/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	9.4 KiB	8.6 KiB
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`	/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	7.8 KiB	7.0 KiB
article#mini-post-305914 > div.author-row > a > img.avatar `article#mini-post-305914 > div.author-row > a > img.avatar`	/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...	10.9 KiB	6.7 KiB
article#mini-post-381364 > div.author-row > a > img.avatar `article#mini-post-381364 > div.author-row > a > img.avatar`	/css-tricks.com/wp-content/uploads/2024/07/juan-diego-rod...	6.6 KiB	5.8 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Estimated savings: 300 ms 39.2 KiB

URL	Transfer Size	Est Savings
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	25.8 KiB	21.2 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/style.css?ver=1736090407000	22.0 KiB	18.0 KiB

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Category	Time Spent
Script Evaluation	1.1 s
Other	911 ms
Style & Layout	657 ms
Script Parsing & Compilation	202 ms
Parse HTML & CSS	165 ms
Rendering	142 ms
Garbage Collection	98 ms

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Estimated savings: 0.0 ms 110.0 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-4TM4ZB5G5N&cx=c&_slc=1	165.1 KiB	68.6 KiB
consent.trustarc.com/asset/notice.js/v/v1.7-8549	36.0 KiB	21.3 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/js/min/jquery-3.5.1.min.js	33.3 KiB	20.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

	URL
footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img `footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img`	consent.trustarc.com/get?name=css-tricks.com_cookie-notice.png
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`	/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`	/avatar/6bc7516fbadd709999aadcac03fbf567e721c035d53e9c14a...
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`	/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`	/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`	/avatar/0bb46f96dd1a017438d4a1cf85010939ce5836566fedb4fb4...
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`	/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,309 KiB

●User Timing marks and measures 5 user timings

●JavaScript execution time 1.2 s

●Avoid long main-thread tasks 13 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 200 ms

●Server Backend Latencies 60 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 530 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
NEWS `div.article-article > header.article-publication-meta > div.tags > a`
API `div.article-article > header.article-publication-meta > div.tags > a`
NEWS `div.article-article > header.article-publication-meta > div.tags > a`
FORMS `div.article-article > header.article-publication-meta > div.tags > a`
ARTIFICIAL INTELLIGENCE `div.article-article > header.article-publication-meta > div.tags > a`

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`
footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img `footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Failing Elements
div#gform_fields_3 > div#field_3_1 > div.ginput_container > input#input_3_1 `div#gform_fields_3 > div#field_3_1 > div.ginput_container > input#input_3_1`
div#gform_wrapper_3 > form#gform_3 > div.gform-footer > input#gform_submit_button_3 `div#gform_wrapper_3 > form#gform_3 > div.gform-footer > input#gform_submit_button_3`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Failing Elements
SELECT `div.mini-card-grid > article#mini-post-392463 > div.tags > a`
DESTRUCTURING `div.mini-card-grid > article#mini-post-392714 > div.tags > a`
JAVASCRIPT `div.mini-card-grid > article#mini-post-392714 > div.tags > a`
CSS FUNCTIONS `div.mini-card-grid > article#mini-post-391573 > div.tags > a`
SHAPES `div.mini-card-grid > article#mini-post-391573 > div.tags > a`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Input buttons have discernible text.

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●Identical links have the same purpose.

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○Buttons have an accessible name

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Insecure URL	Request Resolution
css-tricks.com/wp-content/uploads/2025/02/lee_profile-modified-1-80x80.png	Automatically upgraded to HTTPS
css-tricks.com/wp-content/uploads/2024/07/juan-diego-rodriguez-80x80.png	Automatically upgraded to HTTPS

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Source	Description
css-tricks.com/icon-144.png	`Failed to load resource: the server responded with a status of 404 ()`

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Issue type
Mixed content

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`
footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img `footer.site-footer > div#teconsent > a#icon-id04999198214163916 > img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

586 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.27 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

6 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.024

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

804 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.12 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Request	Cache TTL	Transfer Size
/analytics.js/v1/nnmtLrk127wcC9ggBpAutRr4F4x4TMVz/analyti...	120.0 s	28.8 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
/avatar/ae0467bce26cf281ae92243a6000639eb4efaed23b953798b...	300.0 s	14.9 KiB
/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	300.0 s	13.7 KiB
/notice?domain=css-tricks.com&c=teconsent&js=nj&noticeTyp...	3600.0 s	13.1 KiB
/avatar/f3ef01df3d5f430bc5ee3f7caa29a40da482ee4a474bed621...	300.0 s	9.9 KiB
/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	300.0 s	9.8 KiB
/avatar/9c8d0ae709a994f79f5b0223015cbf1972cedc6009f168d75...	300.0 s	9.7 KiB
/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	300.0 s	8.2 KiB
/avatar/c9b682679cc38f0781d644b24d6fa5b2c43447f34bf4ba130...	300.0 s	6.9 KiB
/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...	300.0 s	4.1 KiB
/avatar/6bc7516fbadd709999aadcac03fbf567e721c035d53e9c14a...	300.0 s	3.6 KiB
/avatar/41a6f9778d12dfedcc7ec3727d64a12491d75d9a65d4b9323...	300.0 s	3.1 KiB
/avatar/22a09bfa7640eebbdc49e403fab3691c293a5b8296ba307e9...	300.0 s	2.7 KiB
public.codepenassets.com/embed/index.js	259200.0 s	3.2 KiB
/avatar/0bb46f96dd1a017438d4a1cf85010939ce5836566fedb4fb4...	300.0 s	672 B

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:89.254 source:map[type:text value:[unattributed]]] map[reflowTime:0.557 source:map[column:1746 line:2174 type:source-location url:https://css-tricks.com/ urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

	URL	Resource Size	Est Savings
Olfactive API `article#post-393070 > div.article-thumbnail-wrap > a > img.article-thumbnail`	/css-tricks.com/wp-content/uploads/2026/03/olfactive-api....	179.9 KiB	147.6 KiB
article#post-393306 > div.article-thumbnail-wrap > a > img.article-thumbnail `article#post-393306 > div.article-thumbnail-wrap > a > img.article-thumbnail`	i0.wp.com/css-tricks.com/wp-content/uploads/2026/03/wh8.png?w=814&ssl=1	68.8 KiB	45.4 KiB
article#mini-post-363766 > div.author-row > a > img.avatar `article#mini-post-363766 > div.author-row > a > img.avatar`	/avatar/ae0467bce26cf281ae92243a6000639eb4efaed23b953798b...	14.4 KiB	13.4 KiB
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`	/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...	13.2 KiB	13.0 KiB
article#mini-post-392606 > div.author-row > a > img.avatar `article#mini-post-392606 > div.author-row > a > img.avatar`	css-tricks.com/wp-content/uploads/2025/02/lee_profile-modified-1-80x80.png	12.4 KiB	12.1 KiB
article#mini-post-391766 > div.author-row > a > img.avatar `article#mini-post-391766 > div.author-row > a > img.avatar`	css-tricks.com/wp-content/uploads/2024/07/juan-diego-rodriguez-80x80.png	10.3 KiB	10.0 KiB
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`	/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...	9.4 KiB	9.1 KiB
article#mini-post-307668 > div.author-row > a > img.avatar `article#mini-post-307668 > div.author-row > a > img.avatar`	/avatar/f3ef01df3d5f430bc5ee3f7caa29a40da482ee4a474bed621...	9.5 KiB	8.4 KiB
article#mini-post-392714 > div.author-row > a > img.avatar `article#mini-post-392714 > div.author-row > a > img.avatar`	/avatar/9c8d0ae709a994f79f5b0223015cbf1972cedc6009f168d75...	9.2 KiB	8.2 KiB
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`	/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...	7.8 KiB	7.5 KiB
article#mini-post-381364 > div.author-row > a > img.avatar `article#mini-post-381364 > div.author-row > a > img.avatar`	/css-tricks.com/wp-content/uploads/2024/07/juan-diego-rod...	6.6 KiB	6.3 KiB
article#mini-post-391781 > div.author-row > a > img.avatar `article#mini-post-391781 > div.author-row > a > img.avatar`	/avatar/c9b682679cc38f0781d644b24d6fa5b2c43447f34bf4ba130...	6.4 KiB	5.4 KiB

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

URL	Transfer Size
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	25.8 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/style.css?ver=1736090407000	22.1 KiB
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	63 B
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	810 B
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	7.9 KiB
/wp-content/plugins/jetpack/jetpack_vendor/automattic/jet...	5.7 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Estimated savings: 40 ms 39.4 KiB

URL	Transfer Size	Est Savings
/wp-content/plugins/gravityforms/assets/css/dist/gravity-...	25.8 KiB	21.2 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/style.css?ver=1736090407000	22.0 KiB	18.2 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Estimated savings: 40 ms 110.5 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-4TM4ZB5G5N&cx=c&_slc=1	165.8 KiB	69.0 KiB
consent.trustarc.com/asset/notice.js/v/v1.7-8549	36.0 KiB	21.3 KiB
css-tricks.com/wp-content/themes/CSS-Tricks-19/js/min/jquery-3.5.1.min.js	33.3 KiB	20.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

	URL
footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img `footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img`	consent.trustarc.com/get?name=css-tricks.com_cookie-notice.png
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`	/avatar/c16ca31febf1ccf880613914aa584da7cac990d02a585c1d6...
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`	/avatar/6bc7516fbadd709999aadcac03fbf567e721c035d53e9c14a...
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`	/avatar/db5b77793bb2e052dabd9b140ffcedfb11acd4f33f3597c04...
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`	/avatar/b6c928ce1b901c34f86f3856b5a3bcefe9a4fb94698b9778f...
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`	/avatar/0bb46f96dd1a017438d4a1cf85010939ce5836566fedb4fb4...
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`	/avatar/a8e040142716a4b44d014d80fbcf99c635b1d8faabfe469b6...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Time to Interactive 2.1 s

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●LCP request discovery

●Modern HTTP

●Optimize viewport for mobile

●Max Potential First Input Delay 60 ms

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,186 KiB

●User Timing marks and measures 5 user timings

●JavaScript execution time 0.1 s

●Minimizes main-thread work 0.9 s

●Avoid long main-thread tasks 2 long tasks found

●Avoid non-composited animations 4 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 200 ms

●Server Backend Latencies 70 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 280 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

Accessibility

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
NEWS `div.article-article > header.article-publication-meta > div.tags > a`
API `div.article-article > header.article-publication-meta > div.tags > a`
NEWS `div.article-article > header.article-publication-meta > div.tags > a`
FORMS `div.article-article > header.article-publication-meta > div.tags > a`
ARTIFICIAL INTELLIGENCE `div.article-article > header.article-publication-meta > div.tags > a`

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`
footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img `footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Navigation

Failing Elements
div#gform_fields_3 > div#field_3_1 > div.ginput_container > input#input_3_1 `div#gform_fields_3 > div#field_3_1 > div.ginput_container > input#input_3_1`
div#gform_wrapper_3 > form#gform_3 > div.gform-footer > input#gform_submit_button_3 `div#gform_wrapper_3 > form#gform_3 > div.gform-footer > input#gform_submit_button_3`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Failing Elements
CSS FUNCTIONS `div.mini-card-grid > article#mini-post-392463 > div.tags > a`
SELECT `div.mini-card-grid > article#mini-post-392463 > div.tags > a`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Input buttons have discernible text.

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●Identical links have the same purpose.

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○Buttons have an accessible name

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

Trust and Safety

Insecure URL	Request Resolution
css-tricks.com/wp-content/uploads/2025/02/lee_profile-modified-1-80x80.png	Automatically upgraded to HTTPS
css-tricks.com/wp-content/uploads/2024/07/juan-diego-rodriguez-80x80.png	Automatically upgraded to HTTPS

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Source	Description
css-tricks.com/icon-144.png	`Failed to load resource: the server responded with a status of 404 ()`

Issue type
Mixed content

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
article#post-392986 > div.article-article > div.author-row > img `article#post-392986 > div.article-article > div.author-row > img`
article#post-392794 > div.article-article > div.author-row > img `article#post-392794 > div.article-article > div.author-row > img`
article#post-393070 > div.article-article > div.author-row > img `article#post-393070 > div.article-article > div.author-row > img`
article#post-393306 > div.article-article > div.author-row > img `article#post-393306 > div.article-article > div.author-row > img`
article#post-391993 > div.article-article > div.author-row > img `article#post-391993 > div.article-article > div.author-row > img`
article#post-391438 > div.article-article > div.author-row > img `article#post-391438 > div.article-article > div.author-row > img`
footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img `footer.site-footer > div#teconsent > a#icon-id01802664754104546 > img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Results for https://css-tricks.com

Site Health

Top Priorities (5)

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Navigation

Best practices

Best Practices

Trust and Safety

General

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Navigation

Best practices

Best Practices

Trust and Safety

General

SEO

Content Best Practices

Keyboard Shortcuts