United Stated · New York Completed: Apr 4, 2026 16:48 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 72 / 100
Based on 8 categories, 0 sections
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
HSTS header is missing
No Content-Security-Policy header found
1 button(s) with no accessible text
No <main> landmark found
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Industry-standard audits powered by Google Lighthouse.
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.
15.60 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
17.04 s
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.
0.079
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
15.60 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.
17.18 s
Audit breakdown by category with detailed findings.
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.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
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.
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 |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.5 KiB | 1.4 s |
| www.ruby-lang.org/stylesheets/compiled.css | 17.3 KiB | 300 ms |
| fonts.googleapis.com/css2?family=Noto+Sans:wght@400;700&display=swap | 867 B | |
| www.ruby-lang.org/javascripts/try-ruby-examples.js | 1.3 KiB |
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
| URL | Time Spent |
|---|---|
| www.ruby-lang.org/ | 794 ms |
| www.ruby-lang.org/en/ | 0.0 ms |
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.
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.5 KiB | 12.3 KiB |
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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.1 KiB | 116.1 KiB |
| www.ruby-lang.org/stylesheets/compiled.css | 17.1 KiB | 12.7 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
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 |
|---|---|
| Other | 1.2 s |
| Style & Layout | 1.0 s |
| Rendering | 395 ms |
| Script Evaluation | 182 ms |
| Parse HTML & CSS | 72 ms |
| Script Parsing & Compilation | 7.6 ms |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
Happy Hacking! div.container > div.flex > div.mb-3 > img.h-24 | www.ruby-lang.org/images/footer/happy-hacking.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
| Failing Elements |
|---|
div.container > div.flex > div.flex > button#mobile-menu-toggle div.container > div.flex > div.flex > button#mobile-menu-toggle |
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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
| Failing Elements |
|---|
DOWNLOAD div.absolute > div.absolute > div.flex > a.mt-4 |
# Output "I love Ruby" figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Output "I *LOVE* RUBY" figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Output "I *love* Ruby" figure.highlight > pre > code.language-ruby > span.c1 |
# five times figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Ruby knows what you figure.highlight > pre > code.language-ruby > span.c1 |
# mean, even if you figure.highlight > pre > code.language-ruby > span.c1 |
# want to do math on figure.highlight > pre > code.language-ruby > span.c1 |
# an entire Array figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# The Greeter class figure.highlight > pre > code.language-ruby > span.c1 |
name figure.highlight > pre > code.language-ruby > span.nb |
name figure.highlight > pre > code.language-ruby > span.nb |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Create a new object figure.highlight > pre > code.language-ruby > span.c1 |
# Output "Hello World!" figure.highlight > pre > code.language-ruby > span.c1 |
Try Ruby div.container > div.text-center > p.text-stone-700 > a.text-semantic-text-link |
Ecosystem div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Creator of Ruby div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Simple div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Creator of Ruby on Rails div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Productivity div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Author of "The Pragmatic Programmer" div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Community div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Executive Director of Rails Foundation div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
The universal motto is "MINASWAN" — Matz is nice and so we are nice section.community-section > div.container > div.text-center > p.text-lg |
MINASWAN div.container > div.text-center > p.text-lg > span.font-bold |
Matz is nice and so we are nice div.container > div.text-center > p.text-lg > span.italic |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Read more news div.grid > div.lg:col-span-2 > p.mt-4 > a.text-sm |
Read more security div.grid > div > p.mt-4 > a.text-sm |
These are opportunities to improve the legibility of your content.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
| Failing Elements |
|---|
html.fonts-loaded html.fonts-loaded |
These items highlight common accessibility best practices.
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.
Industry-standard audits powered by Google Lighthouse. — Desktop
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.
2.43 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.53 s
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.
0.036
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.43 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.
3.59 s
Audit breakdown by category with detailed findings.
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.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
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.
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 |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.2 KiB | 385 ms |
| www.ruby-lang.org/javascripts/try-ruby-examples.js | 1.4 KiB | |
| fonts.googleapis.com/css2?family=Noto+Sans:wght@400;700&display=swap | 1.2 KiB | |
| www.ruby-lang.org/stylesheets/compiled.css | 17.3 KiB |
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
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 | |
|---|---|---|---|
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_15.jpg | 129.0 KiB | 124.0 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_06.jpg | 126.5 KiB | 121.4 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_09.jpg | 105.3 KiB | 100.3 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_01.jpg | 71.3 KiB | 66.8 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_12.jpg | 67.3 KiB | 62.2 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_03.jpg | 65.2 KiB | 60.2 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_05.jpg | 56.8 KiB | 51.7 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_08.jpg | 55.0 KiB | 50.0 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_13.jpg | 50.2 KiB | 45.7 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_10.jpg | 50.1 KiB | 45.0 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_14.jpg | 49.2 KiB | 44.7 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_17.jpg | 49.5 KiB | 44.4 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_04.jpg | 48.0 KiB | 43.0 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_11.jpg | 46.7 KiB | 41.6 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_02.jpg | 40.0 KiB | 34.9 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_07.jpg | 39.5 KiB | 34.4 KiB |
Ruby Community div.flex > div.flex > div.flex-shrink-0 > img.w-full | www.ruby-lang.org/images/home/community/pics/photo_16.jpg | 37.9 KiB | 33.4 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
| URL | Time Spent |
|---|---|
| www.ruby-lang.org/ | 207 ms |
| www.ruby-lang.org/en/ | 0.0 ms |
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.
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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.1 KiB | 116.1 KiB |
| www.ruby-lang.org/stylesheets/compiled.css | 17.1 KiB | 10.1 KiB |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /css2?family=Noto+Sans+JP:wght@100..900&family=Noto+Sans+... | 116.2 KiB | 12.2 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
Happy Hacking! div.container > div.flex > div.mb-3 > img.h-24 | www.ruby-lang.org/images/footer/happy-hacking.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
| Failing Elements |
|---|
DOWNLOAD div.absolute > div.absolute > div.flex > a.mt-4 |
# Output "I love Ruby" figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Output "I *LOVE* RUBY" figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Output "I *love* Ruby" figure.highlight > pre > code.language-ruby > span.c1 |
# five times figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Ruby knows what you figure.highlight > pre > code.language-ruby > span.c1 |
# mean, even if you figure.highlight > pre > code.language-ruby > span.c1 |
# want to do math on figure.highlight > pre > code.language-ruby > span.c1 |
# an entire Array figure.highlight > pre > code.language-ruby > span.c1 |
puts figure.highlight > pre > code.language-ruby > span.nb |
# The Greeter class figure.highlight > pre > code.language-ruby > span.c1 |
name figure.highlight > pre > code.language-ruby > span.nb |
name figure.highlight > pre > code.language-ruby > span.nb |
puts figure.highlight > pre > code.language-ruby > span.nb |
# Create a new object figure.highlight > pre > code.language-ruby > span.c1 |
# Output "Hello World!" figure.highlight > pre > code.language-ruby > span.c1 |
Try Ruby div.container > div.text-center > p.text-stone-700 > a.text-semantic-text-link |
Ecosystem div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Creator of Ruby div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Simple div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Creator of Ruby on Rails div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Productivity div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Author of "The Pragmatic Programmer" div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Community div.why-ruby-card > div.relative > div.relative > h3.text-5xl |
Executive Director of Rails Foundation div.relative > div.flex-shrink-0 > div.text-left > p.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Continue Reading... div.space-y-6 > article.pb-6 > p.mt-1 > a.text-xs |
Read more news div.grid > div.lg:col-span-2 > p.mt-4 > a.text-sm |
Read more security div.grid > div > p.mt-4 > a.text-sm |
These are opportunities to improve the legibility of your content.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
| Failing Elements |
|---|
html.fonts-loaded html.fonts-loaded |
These items highlight common accessibility best practices.
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.
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