C — https://www.apache.org | BeaverCheck Audit

Site Health

Score: 79 / 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)

'unsafe-eval' found in script source

Security › Content Security Policy

'unsafe-inline' found in script source

Security › Content Security Policy

Cross-Origin-Embedder-Policy header is missing

Security › Security Headers

Cross-Origin-Opener-Policy header is missing

Security › Security Headers

External script from analytics.apache.org lacks integrity attribute

Security › Subresource Integrity

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

100

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.

2.96 s

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

5.92 s

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

27 ms

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

0.013

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

3.47 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.

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

Request	Cache TTL	Transfer Size
www.apache.org/css/Montserrat-ExtraBold.ttf	3600.0 s	145.2 KiB
www.apache.org/images/welcome-bg/image-5.webp	3600.0 s	87.3 KiB
www.apache.org/images/welcome-bg/image-1.webp	3600.0 s	86.7 KiB
www.apache.org/css/OpenSans-Regular.ttf	3600.0 s	76.7 KiB
www.apache.org/css/OpenSans-Bold.ttf	3600.0 s	74.9 KiB
www.apache.org/logos/res/royale/default.png	3600.0 s	71.7 KiB
analytics.apache.org/matomo.js	3600.0 s	65.8 KiB
www.apache.org/logos/res/openserverless/default.png	3600.0 s	51.3 KiB
www.apache.org/logos/res/tomcat/default.png	3600.0 s	51.0 KiB
www.apache.org/logos/res/plc4x/default.png	3600.0 s	50.7 KiB
www.apache.org/logos/res/mynewt/default.png	3600.0 s	45.9 KiB
www.apache.org/images/events/flink.webp	3600.0 s	37.5 KiB
www.apache.org/logos/res/apisix/default.png	3600.0 s	36.4 KiB
www.apache.org/logos/res/servicecomb/default.png	3600.0 s	36.3 KiB
www.apache.org/logos/res/apr/default.png	3600.0 s	36.0 KiB
www.apache.org/logos/res/training/default.png	3600.0 s	34.0 KiB
www.apache.org/logos/res/orc/default.png	3600.0 s	32.1 KiB
www.apache.org/logos/res/pegasus/default.png	3600.0 s	32.0 KiB
www.apache.org/logos/res/camel/default.png	3600.0 s	31.9 KiB
www.apache.org/js/jquery.min.js	3600.0 s	29.9 KiB
www.apache.org/logos/res/inlong/default.png	3600.0 s	27.4 KiB
www.apache.org/logos/res/steve/default.png	3600.0 s	25.5 KiB
www.apache.org/logos/res/incubator/default.png	3600.0 s	22.8 KiB
www.apache.org/images/stickers-bg.webp	3600.0 s	21.8 KiB
www.apache.org/_pagefind/pagefind-ui.js	3600.0 s	21.6 KiB
www.apache.org/images/parallax-5.webp	3600.0 s	20.9 KiB
www.apache.org/css/min.bootstrap.css	3600.0 s	18.9 KiB
www.apache.org/logos/res/toree/default.png	3600.0 s	17.3 KiB
www.apache.org/images/parallax-4.webp	3600.0 s	16.4 KiB
www.apache.org/css/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw5aX8.ttf	3600.0 s	16.3 KiB
www.apache.org/css/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf	3600.0 s	16.2 KiB
www.apache.org/logos/res/auron/default.png	3600.0 s	15.6 KiB
www.apache.org/js/bootstrap.js	3600.0 s	11.1 KiB
www.apache.org/images/events/iceberg-summit-2-26.webp	3600.0 s	7.8 KiB
www.apache.org/images/parallax-7.webp	3600.0 s	7.8 KiB
www.apache.org/css/styles.css	3600.0 s	7.1 KiB
www.apache.org/images/bluesky-icon.png	3600.0 s	6.5 KiB
www.apache.org/images/asf_logo_full_horizontal_white.svg	3600.0 s	5.4 KiB
www.apache.org/images/asflogo_horizontal_color.svg	3600.0 s	3.1 KiB
www.apache.org/_pagefind/pagefind-ui.css	3600.0 s	2.7 KiB
www.apache.org/images/oakleaf.svg	3600.0 s	2.1 KiB
www.apache.org/images/mastodon-icon.png	3600.0 s	1.8 KiB
www.apache.org/js/slideshow.js	3600.0 s	1.1 KiB
www.apache.org/images/slack-icon.svg	3600.0 s	1.0 KiB
www.apache.org/css/new-ui.css	3600.0 s	991 B
www.apache.org/images/youtube-icon.svg	3600.0 s	799 B
www.apache.org/images/github-mark-white.svg	3600.0 s	625 B
www.apache.org/images/linkedin-icon.png	3600.0 s	590 B
www.apache.org/images/x-icon.svg	3600.0 s	470 B
www.apache.org/css/Montserrat-300-600-800.css	3600.0 s	409 B
www.apache.org/css/OpenSans.css	3600.0 s	313 B

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:36.162 source:map[column:15 line:263 type:source-location url:https://www.apache.org/ 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
Everyone is Welcome `div.inner > div.flex-1 > div.everyone-welcome-image > img#welcome-image`	www.apache.org/images/welcome-bg/image-5.webp	87.0 KiB	80.5 KiB
Royale `div.project-cards > div#royale > a > img.objec-fit-cover`	www.apache.org/logos/res/royale/default.png	71.5 KiB	70.9 KiB
OpenServerless `div#incubating-projects > div#openserverless > a > img.objec-fit-cover`	www.apache.org/logos/res/openserverless/default.png	51.1 KiB	50.7 KiB
Tomcat `div.project-cards > div#tomcat > a > img.objec-fit-cover`	www.apache.org/logos/res/tomcat/default.png	50.8 KiB	50.4 KiB
PLC4X `div.project-cards > div#plc4x > a > img.objec-fit-cover`	www.apache.org/logos/res/plc4x/default.png	50.1 KiB	49.9 KiB
Mynewt `div.project-cards > div#mynewt > a > img.objec-fit-cover`	www.apache.org/logos/res/mynewt/default.png	45.8 KiB	45.4 KiB
ServiceComb `div.project-cards > div#servicecomb > a > img.objec-fit-cover`	www.apache.org/logos/res/servicecomb/default.png	36.0 KiB	35.7 KiB
APISIX `div.project-cards > div#apisix > a > img.objec-fit-cover`	www.apache.org/logos/res/apisix/default.png	35.8 KiB	35.5 KiB
Portable Runtime (APR) `div.project-cards > div#apr > a > img.objec-fit-cover`	www.apache.org/logos/res/apr/default.png	35.7 KiB	35.4 KiB
Training `div.project-cards > div#training > a > img.objec-fit-cover`	www.apache.org/logos/res/training/default.png	33.4 KiB	33.1 KiB
Pegasus `div#incubating-projects > div#pegasus > a > img.objec-fit-cover`	www.apache.org/logos/res/pegasus/default.png	31.9 KiB	31.7 KiB
ORC `div.project-cards > div#orc > a > img.objec-fit-cover`	www.apache.org/logos/res/orc/default.png	31.9 KiB	31.6 KiB
Camel `div.project-cards > div#camel > a > img.objec-fit-cover`	www.apache.org/logos/res/camel/default.png	31.7 KiB	31.5 KiB
InLong `div.project-cards > div#inlong > a > img.objec-fit-cover`	www.apache.org/logos/res/inlong/default.png	27.2 KiB	27.0 KiB
Steve `div.project-cards > div#steve > a > img.objec-fit-cover`	www.apache.org/logos/res/steve/default.png	25.0 KiB	24.8 KiB
Logo `div.inner > div.w33 > div#para-5 > img.object-fit-contain`	www.apache.org/images/parallax-5.webp	20.7 KiB	20.1 KiB
Toree `div#incubating-projects > div#toree > a > img.objec-fit-cover`	www.apache.org/logos/res/toree/default.png	17.1 KiB	16.9 KiB
Logo `div.inner > div.w33 > div#para-4 > img.object-fit-contain`	www.apache.org/images/parallax-4.webp	16.2 KiB	15.8 KiB
Auron `div#incubating-projects > div#auron > a > img.objec-fit-cover`	www.apache.org/logos/res/auron/default.png	14.9 KiB	14.8 KiB
Flink Forward Conference banner `div.flex > div.flex-1 > div.event-image-wrap > img.object-fit-cover`	www.apache.org/images/events/flink.webp	37.2 KiB	14.6 KiB
Logo `div.inner > div.w33 > div#para-8 > img.object-fit-contain`	www.apache.org/images/parallax-7.webp	7.6 KiB	7.4 KiB
Bluesky icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/bluesky-icon.png	5.9 KiB	5.8 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.

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

value: no origins were preconnected

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
www.apache.org/js/jquery.min.js	29.9 KiB	150 ms
www.apache.org/_pagefind/pagefind-ui.css	2.7 KiB
www.apache.org/css/min.bootstrap.css	18.9 KiB	150 ms
www.apache.org/css/styles.css	7.1 KiB	150 ms
www.apache.org/css/new-ui.css	991 B
www.apache.org/css/OpenSans.css	313 B
www.apache.org/css/Montserrat-300-600-800.css	409 B

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

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: 150 ms 18.1 KiB

URL	Transfer Size	Est Savings
www.apache.org/css/min.bootstrap.css	18.8 KiB	18.1 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: 450 ms 38.4 KiB

URL	Transfer Size	Est Savings
analytics.apache.org/matomo.js	65.5 KiB	38.4 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Estimated savings: 0.0 ms 3.8 KiB

URL	Transfer Size	Est Savings
www.apache.org/js/bootstrap.js	10.9 KiB	3.8 KiB

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

	URL
X icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/x-icon.svg
Apache Software Foundation Logo `div.logo-row > div.inner > a#logo > img.logo`	www.apache.org/images/asflogo_horizontal_color.svg
ASF White Logo `div.inner > div.flex > div.flex-1 > img`	www.apache.org/images/asf_logo_full_horizontal_white.svg
youtube icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/youtube-icon.svg
slack icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/slack-icon.svg
Bluesky icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/bluesky-icon.png
github icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/github-mark-white.svg
Mastodon icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/mastodon-icon.png
linkedIn icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/linkedin-icon.png

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

●Max Potential First Input Delay 80 ms

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoids enormous network payloads Total size was 1,435 KiB

●JavaScript execution time 0.3 s

●Minimizes main-thread work 1.9 s

●Avoid long main-thread tasks 4 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 30 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 10 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○LCP request discovery

○User Timing marks and measures

○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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Failing Elements
Community `div.flex-1 > div.footer-nav-col > div.footer-nav-group > h5.white`

These are opportunities to improve keyboard navigation in your application.

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

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

●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

●`[role]` values are valid

●Buttons have an accessible name

●Image elements have `[alt]` attributes

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

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

●Background and foreground colors have a sufficient contrast ratio

●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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

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

○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 use only permitted ARIA attributes

○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

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

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

○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 buttons have discernible text.

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

○Form elements have associated labels

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

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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

○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.

100

Best Practices

●Uses HTTPS

●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

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●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

○Use a strong HSTS policy

○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.

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

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Uncrawlable Link
❮ `section#home-events > div.inner > div.slideshow-container > a.prev`
❯ `section#home-events > div.inner > div.slideshow-container > a.next`

To appear in search results, crawlers need access to your app.

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

100

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.

588 ms

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

769 ms

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

0 ms

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

0.001

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

588 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.

769 ms

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
www.apache.org/css/Montserrat-ExtraBold.ttf	3600.0 s	145.2 KiB
www.apache.org/images/welcome-bg/image-1.webp	3600.0 s	86.6 KiB
www.apache.org/css/OpenSans-Regular.ttf	3600.0 s	76.7 KiB
www.apache.org/css/OpenSans-Bold.ttf	3600.0 s	74.5 KiB
www.apache.org/logos/res/royale/default.png	3600.0 s	72.1 KiB
analytics.apache.org/matomo.js	3600.0 s	65.8 KiB
www.apache.org/logos/res/tomcat/default.png	3600.0 s	51.4 KiB
www.apache.org/logos/res/openserverless/default.png	3600.0 s	51.3 KiB
www.apache.org/logos/res/plc4x/default.png	3600.0 s	50.3 KiB
www.apache.org/logos/res/mynewt/default.png	3600.0 s	46.4 KiB
www.apache.org/images/events/flink.webp	3600.0 s	37.5 KiB
www.apache.org/logos/res/servicecomb/default.png	3600.0 s	36.3 KiB
www.apache.org/logos/res/apisix/default.png	3600.0 s	35.9 KiB
www.apache.org/logos/res/apr/default.png	3600.0 s	35.9 KiB
www.apache.org/logos/res/training/default.png	3600.0 s	33.6 KiB
www.apache.org/images/welcome-bg/image-3.webp	3600.0 s	32.7 KiB
www.apache.org/logos/res/pegasus/default.png	3600.0 s	32.5 KiB
www.apache.org/logos/res/orc/default.png	3600.0 s	32.1 KiB
www.apache.org/logos/res/camel/default.png	3600.0 s	31.9 KiB
www.apache.org/js/jquery.min.js	3600.0 s	29.9 KiB
www.apache.org/logos/res/inlong/default.png	3600.0 s	27.5 KiB
www.apache.org/logos/res/steve/default.png	3600.0 s	25.1 KiB
www.apache.org/logos/res/incubator/default.png	3600.0 s	22.3 KiB
www.apache.org/images/stickers-bg.webp	3600.0 s	21.7 KiB
www.apache.org/_pagefind/pagefind-ui.js	3600.0 s	21.6 KiB
www.apache.org/images/parallax-5.webp	3600.0 s	20.9 KiB
www.apache.org/css/min.bootstrap.css	3600.0 s	19.4 KiB
www.apache.org/fonts/glyphicons-halflings-regular.woff2	3600.0 s	18.3 KiB
www.apache.org/logos/res/toree/default.png	3600.0 s	17.3 KiB
www.apache.org/css/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw5aX8.ttf	3600.0 s	16.6 KiB
www.apache.org/images/parallax-4.webp	3600.0 s	16.4 KiB
www.apache.org/css/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf	3600.0 s	16.1 KiB
www.apache.org/logos/res/auron/default.png	3600.0 s	15.1 KiB
www.apache.org/images/parallax-8.webp	3600.0 s	11.5 KiB
www.apache.org/js/bootstrap.js	3600.0 s	11.1 KiB
www.apache.org/images/parallax-7.webp	3600.0 s	7.8 KiB
www.apache.org/css/styles.css	3600.0 s	7.1 KiB
www.apache.org/images/bluesky-icon.png	3600.0 s	6.0 KiB
www.apache.org/images/asf_logo_full_horizontal_white.svg	3600.0 s	5.5 KiB
www.apache.org/images/asflogo_horizontal_color.svg	3600.0 s	3.1 KiB
www.apache.org/_pagefind/pagefind-ui.css	3600.0 s	2.7 KiB
www.apache.org/images/oakleaf.svg	3600.0 s	2.1 KiB
www.apache.org/images/mastodon-icon.png	3600.0 s	1.8 KiB
www.apache.org/images/github-mark-white.svg	3600.0 s	1.2 KiB
www.apache.org/images/slack-icon.svg	3600.0 s	1.0 KiB
www.apache.org/images/linkedin-icon.png	3600.0 s	1019 B
www.apache.org/images/youtube-icon.svg	3600.0 s	781 B
www.apache.org/js/slideshow.js	3600.0 s	562 B
www.apache.org/images/x-icon.svg	3600.0 s	481 B
www.apache.org/css/new-ui.css	3600.0 s	436 B
www.apache.org/css/Montserrat-300-600-800.css	3600.0 s	408 B
www.apache.org/css/OpenSans.css	3600.0 s	313 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

URL	Est Savings
www.apache.org/fonts/glyphicons-halflings-regular.woff2	25 ms

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

items: [map[reflowTime:42.834 source:map[column:15 line:263 type:source-location url:https://www.apache.org/ 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
Logo `div.inner > div.w33 > div#para-1 > img.object-fit-contain`	www.apache.org/logos/res/royale/default.png	71.5 KiB	69.4 KiB
OpenServerless `div#incubating-projects > div#openserverless > a > img.objec-fit-cover`	www.apache.org/logos/res/openserverless/default.png	51.1 KiB	49.8 KiB
Tomcat `div.project-cards > div#tomcat > a > img.objec-fit-cover`	www.apache.org/logos/res/tomcat/default.png	50.8 KiB	49.5 KiB
PLC4X `div.project-cards > div#plc4x > a > img.objec-fit-cover`	www.apache.org/logos/res/plc4x/default.png	50.1 KiB	49.4 KiB
Mynewt `div.project-cards > div#mynewt > a > img.objec-fit-cover`	www.apache.org/logos/res/mynewt/default.png	45.8 KiB	44.6 KiB
ServiceComb `div.project-cards > div#servicecomb > a > img.objec-fit-cover`	www.apache.org/logos/res/servicecomb/default.png	36.0 KiB	35.1 KiB
APISIX `div.project-cards > div#apisix > a > img.objec-fit-cover`	www.apache.org/logos/res/apisix/default.png	35.8 KiB	34.9 KiB
Portable Runtime (APR) `div.project-cards > div#apr > a > img.objec-fit-cover`	www.apache.org/logos/res/apr/default.png	35.7 KiB	34.8 KiB
Training `div.project-cards > div#training > a > img.objec-fit-cover`	www.apache.org/logos/res/training/default.png	33.4 KiB	32.6 KiB
Pegasus `div#incubating-projects > div#pegasus > a > img.objec-fit-cover`	www.apache.org/logos/res/pegasus/default.png	31.9 KiB	31.4 KiB
ORC `div.project-cards > div#orc > a > img.objec-fit-cover`	www.apache.org/logos/res/orc/default.png	31.9 KiB	31.1 KiB
Camel `div.project-cards > div#camel > a > img.objec-fit-cover`	www.apache.org/logos/res/camel/default.png	31.7 KiB	31.1 KiB
Everyone is Welcome `div.inner > div.flex-1 > div.everyone-welcome-image > img#welcome-image`	www.apache.org/images/welcome-bg/image-3.webp	32.4 KiB	27.5 KiB
InLong `div.project-cards > div#inlong > a > img.objec-fit-cover`	www.apache.org/logos/res/inlong/default.png	27.2 KiB	26.6 KiB
Steve `div.project-cards > div#steve > a > img.objec-fit-cover`	www.apache.org/logos/res/steve/default.png	25.0 KiB	24.3 KiB
	www.apache.org/logos/res/incubator/default.png	22.1 KiB	21.6 KiB
Logo `div.inner > div.w33 > div#para-5 > img.object-fit-contain`	www.apache.org/images/parallax-5.webp	20.7 KiB	18.8 KiB
Toree `div#incubating-projects > div#toree > a > img.objec-fit-cover`	www.apache.org/logos/res/toree/default.png	17.1 KiB	16.7 KiB
Logo `div.inner > div.w33 > div#para-4 > img.object-fit-contain`	www.apache.org/images/parallax-4.webp	16.2 KiB	14.9 KiB
Auron `div#incubating-projects > div#auron > a > img.objec-fit-cover`	www.apache.org/logos/res/auron/default.png	14.9 KiB	14.5 KiB
Flink Forward Conference banner `div.flex > div.flex-1 > div.event-image-wrap > img.object-fit-cover`	www.apache.org/images/events/flink.webp	37.2 KiB	14.0 KiB
Logo `div.inner > div.w33 > div#para-6 > img.object-fit-contain`	www.apache.org/images/parallax-8.webp	11.2 KiB	9.2 KiB
Logo `div.inner > div.w33 > div#para-8 > img.object-fit-contain`	www.apache.org/images/parallax-7.webp	7.6 KiB	7.3 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

lhId: page-22-DIV

nodeLabel: Logo

path: 1,HTML,1,BODY,6,MAIN,0,SECTION,1,DIV,1,DIV

selector: main#maincontent > section#parallax > div.inner > div.w33

snippet: <div class="w33 relative scrolling-logos">

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.

title: Preconnected origins

value: no origins were preconnected

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
www.apache.org/js/jquery.min.js	29.9 KiB
www.apache.org/css/new-ui.css	436 B
www.apache.org/_pagefind/pagefind-ui.css	2.7 KiB
www.apache.org/css/min.bootstrap.css	19.4 KiB	80 ms
www.apache.org/css/styles.css	7.1 KiB
www.apache.org/css/OpenSans.css	313 B
www.apache.org/css/Montserrat-300-600-800.css	408 B

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 17.8 KiB

URL	Transfer Size	Est Savings
www.apache.org/css/min.bootstrap.css	18.8 KiB	17.8 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Estimated savings: 0.0 ms 3.8 KiB

URL	Transfer Size	Est Savings
www.apache.org/js/bootstrap.js	10.9 KiB	3.8 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: 0.0 ms 38.4 KiB

URL	Transfer Size	Est Savings
analytics.apache.org/matomo.js	65.5 KiB	38.4 KiB

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

	URL
X icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/x-icon.svg
Apache Software Foundation Logo `div.logo-row > div.inner > a#logo > img.logo`	www.apache.org/images/asflogo_horizontal_color.svg
ASF White Logo `div.inner > div.flex > div.flex-1 > img`	www.apache.org/images/asf_logo_full_horizontal_white.svg
youtube icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/youtube-icon.svg
slack icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/slack-icon.svg
Bluesky icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/bluesky-icon.png
github icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/github-mark-white.svg
Mastodon icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/mastodon-icon.png
linkedIn icon `div.flex-1 > div.header-social-icons > a > img`	www.apache.org/images/linkedin-icon.png

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

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Time to Interactive 0.8 s

●Max Potential First Input Delay 20 ms

●Minify CSS

●Avoids enormous network payloads Total size was 1,401 KiB

●JavaScript execution time 0.0 s

●Minimizes main-thread work 0.5 s

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 20 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 0 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

○Avoid long main-thread tasks

○Avoid non-composited animations

Accessibility

Navigation

Failing Elements
Community `div.flex-1 > div.footer-nav-col > div.footer-nav-group > h5.white`

These are opportunities to improve keyboard navigation in your application.

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

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

●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

●`[role]` values are valid

●Image elements have `[alt]` attributes

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

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

●Background and foreground colors have a sufficient contrast ratio

●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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

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

○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 use only permitted ARIA attributes

○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

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

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

○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 buttons have discernible text.

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

○Form elements have associated labels

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

○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.

100

Best Practices

●Uses HTTPS

●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

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●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

○Use a strong HSTS policy

○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.

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

Crawling and Indexing

Uncrawlable Link
❮ `section#home-events > div.inner > div.slideshow-container > a.prev`
❯ `section#home-events > div.inner > div.slideshow-container > a.next`

To appear in search results, crawlers need access to your app.

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`

Browse & Analyze

Learn

Results for https://www.apache.org

Site Health

Top Priorities (5)

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Navigation

Best Practices

SEO

Content Best Practices

Crawling and Indexing

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Navigation

Best Practices

SEO

Content Best Practices

Crawling and Indexing

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