Mobile 375 × 812

Desktop 1440 × 900

Score: 76 / 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
No Content-Security-Policy header found
1 control(s) without accessible label
Soft 404: server returns HTTP 200 for non-existent pages
104 HTTP requests — consider bundling or reducing
[](https://beavercheck.com/results/4597a3db-ec0b-492c-bb1b-7e5935ac8057)<a href="https://beavercheck.com/results/4597a3db-ec0b-492c-bb1b-7e5935ac8057"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fdeno.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fdeno.comThis badge auto-updates with your latest scan result.
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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.
2.45 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.10 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.87 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
11.24 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.
11.20 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.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
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 | |
|---|---|---|---|
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-fg.webp?__frsh_c=463284b5b144a... | 161.8 KiB | 95.7 KiB |
TypeScript div.grid > div.flex > h3.text-balance > img.size-[1.6em] | /runtime/typescript.png?__frsh_c=463284b5b144ab4d58f04671... | 43.7 KiB | 43.4 KiB |
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... | 36.9 KiB | 33.7 KiB |
An illustration in the style of lo-fi anime showing a cute dinosaur coding on a… div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-placeholder-rain.webp?__frsh_c=4632... | 46.3 KiB | 30.2 KiB |
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-bg.webp?__frsh_c=463284b5b144a... | 22.2 KiB | 20.3 KiB |
npm div.grid > div.flex > h3#npm-modules > img.h-auto | deno.com/runtime/npm.png | 7.1 KiB | 6.9 KiB |
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.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| deno.com/i/static/array.js | 300.0 s | 55.4 KiB |
| deno.com/i/static/posthog-recorder.js?v=1.364.6 | 14400.0 s | 60.5 KiB |
| deno.com/i/static/surveys.js?v=1.364.6 | 300.0 s | 28.8 KiB |
| deno.com/i/static/exception-autocapture.js?v=1.364.6 | 300.0 s | 4.2 KiB |
| deno.com/i/static/dead-clicks-autocapture.js?v=1.364.6 | 14400.0 s | 4.9 KiB |
| deno.com/i/static/web-vitals.js?v=1.364.6 | 300.0 s | 2.6 KiB |
| deno.com/i/array/phc_qYGDW7D6trrGbvJf4onJGDeCpI5cBlxC8SLKOKT5fB/config.js | 300.0 s | 851 B |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
| URL | Time Spent |
|---|---|
| deno.com/ | 3.5 s |
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 JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=G-5HMZ6WRNXW&cx=c>m=4e6411 | 174.1 KiB | 69.8 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-5B5TH8ZJ | 120.6 KiB | 63.6 KiB |
| deno.com/i/static/posthog-recorder.js?v=1.364.6 | 60.4 KiB | 37.4 KiB |
| deno.com/i/static/array.js | 55.1 KiB | 26.0 KiB |
| deno.com/_fresh/js/463284b5b144ab4d58f0467181ce0219895064dd/OramaSearch.js | 30.4 KiB | 23.6 KiB |
| deno.com/i/static/surveys.js?v=1.364.6 | 28.6 KiB | 22.8 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| /scripts/ScrollTrigger.min.js?__frsh_c=463284b5b144ab4d58... | 4.0 s | 273 ms | 6.1 ms |
| deno.com/ | 3.3 s | 18 ms | 4.1 ms |
| Unattributable | 1.5 s | 34 ms | 0.0 ms |
| deno.com/i/static/array.js | 1.3 s | 1.2 s | 22 ms |
| deno.com/scripts/gsap.min.js?__frsh_c=463284b5b144ab4d58f0467181ce0219895064dd | 1.3 s | 344 ms | 12 ms |
| www.googletagmanager.com/gtag/js?id=G-5HMZ6WRNXW&cx=c>m=4e6411 | 421 ms | 323 ms | 71 ms |
| www.googletagmanager.com/gtm.js?id=GTM-5B5TH8ZJ | 213 ms | 158 ms | 45 ms |
| deno.com/i/static/posthog-recorder.js?v=1.364.6 | 144 ms | 110 ms | 31 ms |
| deno.com/_fresh/js/463284b5b144ab4d58f0467181ce0219895064dd/fresh-runtime.js | 93 ms | 82 ms | 0.4 ms |
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 | 5.1 s |
| Style & Layout | 3.3 s |
| Script Evaluation | 2.5 s |
| Rendering | 1.1 s |
| Script Parsing & Compilation | 218 ms |
| Garbage Collection | 130 ms |
| Parse HTML & CSS | 82 ms |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... |
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... |
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-fg.webp?__frsh_c=463284b5b144a... |
npm div.grid > div.flex > h3#npm-modules > img.h-auto | deno.com/runtime/npm.png |
div.w-full > div.mt-16 > div.border > img.mx-auto div.w-full > div.mt-16 > div.border > img.mx-auto | /images/homepage/code_lines.svg?__frsh_c=463284b5b144ab4d... |
div.w-full > div.mt-16 > div.border > img.mx-auto div.w-full > div.mt-16 > div.border > img.mx-auto | /images/homepage/formatter_lines.svg?__frsh_c=463284b5b14... |
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.
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
| Failing Elements |
|---|
div.w-full > div.flex > div.w-full > div.rounded-md div.w-full > div.flex > div.w-full > div.rounded-md |
div.w-full > div.flex > div.w-full > div.rounded-md div.w-full > div.flex > div.w-full > div.rounded-md |
These are opportunities to improve the usage of ARIA in your application which 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 |
|---|
Stars on GitHub div.w-full > ul.w-full > li > div.text-gray-3 |
Active Deno users div.w-full > ul.w-full > li > div.text-gray-3 |
Community modules div.w-full > ul.w-full > li > div.text-gray-3 |
Now offering enterprise support for the Deno runtime div.mx-auto > div.w-full > div.flex > div.!text-gray-3 |
More is better div.flex > div.w-full > div.border-b > p.text-gray-2 |
* Ubuntu 22 on ec2 m5.metal; Deno 2.5.2 vs. Node 18.12.1 div.w-full > div.grid > div.flex > small.text-gray-2 |
Manu (Qwik) div.w-full > div.grid > figure > figcaption.text-gray-2 |
These are opportunities to improve the legibility of your content.
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn how to use the `lang` attribute.
| Failing Elements |
|---|
$ deno lint --watch div.w-full > div.mt-16 > div.border > div.text-gray-50 |
$ deno test server_test.ts div.mt-16 > div.border > div.-mx-6 > div.text-gray-50 |
$ deno fmt --line-width=120 div.w-full > div.mt-16 > div.border > div.text-gray-50 |
These are opportunities to improve the interpretation of your content by users in different locales.
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.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
| Link destination | Link Text |
|---|---|
| deno.com/enterprise | Learn more |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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.
1.58 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.20 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
322 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.008
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.55 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.
3.60 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.
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.
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.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| deno.com/i/static/array.js | 300.0 s | 55.4 KiB |
| deno.com/i/static/posthog-recorder.js?v=1.364.6 | 14400.0 s | 60.5 KiB |
| deno.com/i/static/surveys.js?v=1.364.6 | 300.0 s | 28.8 KiB |
| deno.com/i/static/exception-autocapture.js?v=1.364.6 | 300.0 s | 4.2 KiB |
| deno.com/i/static/dead-clicks-autocapture.js?v=1.364.6 | 14400.0 s | 4.9 KiB |
| deno.com/i/static/web-vitals.js?v=1.364.6 | 300.0 s | 2.6 KiB |
| deno.com/i/array/phc_qYGDW7D6trrGbvJf4onJGDeCpI5cBlxC8SLKOKT5fB/config.js | 300.0 s | 853 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 | |
|---|---|---|---|
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-fg.webp?__frsh_c=463284b5b144a... | 161.8 KiB | 107.5 KiB |
TypeScript div.grid > div.flex > h3.text-balance > img.size-[1.6em] | /runtime/typescript.png?__frsh_c=463284b5b144ab4d58f04671... | 43.7 KiB | 43.5 KiB |
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... | 36.9 KiB | 34.3 KiB |
An illustration in the style of lo-fi anime showing a cute dinosaur coding on a… div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-placeholder-rain.webp?__frsh_c=4632... | 46.3 KiB | 33.1 KiB |
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-bg.webp?__frsh_c=463284b5b144a... | 22.2 KiB | 20.6 KiB |
npm div.grid > div.flex > h3#npm-modules > img.h-auto | deno.com/runtime/npm.png | 7.1 KiB | 6.9 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
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 JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=G-5HMZ6WRNXW&cx=c>m=4e6411 | 174.1 KiB | 69.8 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-5B5TH8ZJ | 120.6 KiB | 63.6 KiB |
| deno.com/i/static/posthog-recorder.js?v=1.364.6 | 60.4 KiB | 37.4 KiB |
| deno.com/i/static/array.js | 55.1 KiB | 25.9 KiB |
| deno.com/_fresh/js/463284b5b144ab4d58f0467181ce0219895064dd/OramaSearch.js | 30.4 KiB | 23.6 KiB |
| deno.com/i/static/surveys.js?v=1.364.6 | 28.6 KiB | 22.8 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 |
|---|---|
| Other | 931 ms |
| Style & Layout | 896 ms |
| Script Evaluation | 656 ms |
| Rendering | 122 ms |
| Script Parsing & Compilation | 60 ms |
| Garbage Collection | 36 ms |
| Parse HTML & CSS | 26 ms |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... |
div.grid > div.grid > div.w-[200%] > img.w-1/2 div.grid > div.grid > div.w-[200%] > img.w-1/2 | /images/homepage/lofi-hero-clouds.webp?__frsh_c=463284b5b... |
div.md:col-start-1 > div.grid > div.grid > img.w-full div.md:col-start-1 > div.grid > div.grid > img.w-full | /images/homepage/lofi-hero-fg.webp?__frsh_c=463284b5b144a... |
npm div.grid > div.flex > h3#npm-modules > img.h-auto | deno.com/runtime/npm.png |
div.w-full > div.mt-16 > div.border > img.mx-auto div.w-full > div.mt-16 > div.border > img.mx-auto | /images/homepage/code_lines.svg?__frsh_c=463284b5b144ab4d... |
div.w-full > div.mt-16 > div.border > img.mx-auto div.w-full > div.mt-16 > div.border > img.mx-auto | /images/homepage/formatter_lines.svg?__frsh_c=463284b5b14... |
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.
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
| Failing Elements |
|---|
div.w-full > div.flex > div.w-full > div.rounded-md div.w-full > div.flex > div.w-full > div.rounded-md |
div.w-full > div.flex > div.w-full > div.rounded-md div.w-full > div.flex > div.w-full > div.rounded-md |
These are opportunities to improve the usage of ARIA in your application which 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 |
|---|
⌘K div.flex > div.md:relative > div.relative > kbd#search-key |
Stars on GitHub div.w-full > ul.w-full > li > div.text-gray-3 |
Active Deno users div.w-full > ul.w-full > li > div.text-gray-3 |
Community modules div.w-full > ul.w-full > li > div.text-gray-3 |
Now offering enterprise support for the Deno runtime div.mx-auto > div.w-full > div.flex > div.!text-gray-3 |
More is better div.flex > div.w-full > div.border-b > p.text-gray-2 |
* Ubuntu 22 on ec2 m5.metal; Deno 2.5.2 vs. Node 18.12.1 div.w-full > div.grid > div.flex > small.text-gray-2 |
Manu (Qwik) div.w-full > div.grid > figure > figcaption.text-gray-2 |
These are opportunities to improve the legibility of your content.
Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn how to use the `lang` attribute.
| Failing Elements |
|---|
$ deno lint --watch div.w-full > div.mt-16 > div.border > div.text-gray-50 |
$ deno test server_test.ts div.mt-16 > div.border > div.-mx-6 > div.text-gray-50 |
$ deno fmt --line-width=120 div.w-full > div.mt-16 > div.border > div.text-gray-50 |
These are opportunities to improve the interpretation of your content by users in different locales.
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.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
| Link destination | Link Text |
|---|---|
| deno.com/enterprise | Learn more |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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