Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
Performance issues directly impact user engagement and conversion rates.
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
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| connect.facebook.net/en_US/fbevents.js | 1200.0 s | 96.6 KiB |
| /signals/config/1943473543052323?v=2.9.303&r=stable&domai... | 1200.0 s | 46.2 KiB |
| scripts.clarity.ms/0.8.59/clarity.js | 86400.0 s | 26.2 KiB |
| snap.licdn.com/li.lms-analytics/insight.min.js | 86400.0 s | 18.7 KiB |
| static.chartbeat.com/js/chartbeat.js | 86400.0 s | 15.9 KiB |
| static.chartbeat.com/js/chartbeat_mab.js | 86400.0 s | 10.1 KiB |
| www.uptimiarum.eu/rum.min.js | 0.0 ms | 1.4 KiB |
| ticker-api.cointelegraph.com/images/logo/USD.png?t=2026 | 86400.0 s | 2.7 KiB |
| /collect?v=2&fmt=js&pid=8920617&time=1776803633830&url=ht... | 0.0 ms | 693 B |
| /tr/?id=1943473543052323&ev=PageView&dl=https%3A%2F%2Fcoi... | 0.0 ms | 16 B |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
New York targets Coinbase, Gemini in fresh crackdown on prediction markets a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 181.0 KiB | 166.0 KiB |
Nium taps Coinbase to add USDC into global payments network a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 161.6 KiB | 146.6 KiB |
Core Scientific plans $3.3B debt raise to fund AI data center push a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 134.9 KiB | 119.9 KiB |
Blockchain.com adds perpetual futures trading to self-custody wallets a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 122.8 KiB | 107.8 KiB |
European investors may switch banks for better crypto access, survey finds a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 106.4 KiB | 91.4 KiB |
DoorDash to offer stablecoin payments to users via Tempo blockchain a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 105.1 KiB | 90.1 KiB |
div.header-zone__flower > div.container > div.relative > img.image_GVcVq div.header-zone__flower > div.container > div.relative > img.image_GVcVq | /images/373_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS9zdG9yY... | 88.6 KiB | 88.0 KiB |
Here’s what happened in crypto today a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 102.1 KiB | 87.1 KiB |
Fed chair nominee pressed on potential conflicts of interest, independence a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img | /cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi... | 81.7 KiB | 66.7 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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=AW-16809997002&cx=c>m=4e64h1 | 173.6 KiB | 115.8 KiB |
| cointelegraph.com/_nuxt/e02fab8.js | 223.0 KiB | 90.4 KiB |
| cointelegraph.com/_nuxt/0e94ba4.js | 145.1 KiB | 85.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-53R24TEEB1&cx=c>m=4e64h1 | 179.7 KiB | 66.6 KiB |
| www.googletagmanager.com/gtag/js?id=G-2FVV5584TH&cx=c>m=4e64h1 | 173.7 KiB | 62.4 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-N5X5C39 | 159.6 KiB | 49.2 KiB |
| cointelegraph.com/_nuxt/41060f2.js | 104.9 KiB | 38.1 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.5 KiB | 32.7 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| cointelegraph.com/ | 28.1 s | 23 ms | 70 ms |
| cointelegraph.com/_nuxt/0e94ba4.js | 24.0 s | 10.5 s | 85 ms |
| scripts.clarity.ms/0.8.59/clarity.js | 3.3 s | 3.2 s | 14 ms |
| Unattributable | 2.7 s | 136 ms | 0.0 ms |
| cointelegraph.com/_nuxt/e02fab8.js | 2.1 s | 1.8 s | 186 ms |
| www.googletagmanager.com/gtm.js?id=GTM-N5X5C39 | 1.6 s | 1.3 s | 112 ms |
| www.googletagmanager.com/gtag/js?id=G-53R24TEEB1&cx=c>m=4e64h1 | 897 ms | 692 ms | 107 ms |
| www.googletagmanager.com/gtag/js?id=G-2FVV5584TH&cx=c>m=4e64h1 | 620 ms | 509 ms | 101 ms |
| connect.facebook.net/en_US/fbevents.js | 255 ms | 193 ms | 59 ms |
| static.chartbeat.com/js/chartbeat.js | 238 ms | 202 ms | 6.9 ms |
| /signals/config/1943473543052323?v=2.9.303&r=stable&domai... | 227 ms | 192 ms | 34 ms |
| www.googletagmanager.com/gtag/js?id=AW-16809997002&cx=c>m=4e64h1 | 138 ms | 45 ms | 93 ms |
| static.ads-twitter.com/uwt.js | 128 ms | 115 ms | 7.6 ms |
| snap.licdn.com/li.lms-analytics/insight.min.js | 87 ms | 74 ms | 8.7 ms |
| www.uptimiarum.eu/rum.min.js | 73 ms | 70 ms | 0.8 ms |
| cointelegraph.com/_nuxt/41060f2.js | 56 ms | 3.3 ms | 51 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Style & Layout | 24.7 s |
| Script Evaluation | 19.5 s |
| Other | 13.0 s |
| Rendering | 6.1 s |
| Script Parsing & Compilation | 971 ms |
| Garbage Collection | 617 ms |
| Parse HTML & CSS | 155 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages with cache-control:no-store header cannot enter back/forward cache. | Actionable |
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not actionable |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /* ! tailwindcss v3.4.11 | MIT License | https://tailwindcss.com *//* 1. Prevent padding and border… | 30.2 KiB | 27.1 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
Cointelegraph iOS App div > div.flex > a > img.cursor-pointer |
Cointelegraph Android App div > div.flex > a > img.cursor-pointer |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
MOBILE APPS div.md:max-w-243 > div.py-4 > div.flex-none > div.text-center |
COINTELEGRAPH NEWSLETTER div.md:max-w-243 > div.py-4 > div.flex > div.text-center |
Cointelegraph covers fintech, blockchain and Bitcoin bringing you the latest cr… div.md:max-w-243 > div.py-4 > div.flex > div.text-center |
© Cointelegraph 2013 - 2026 div.py-4 > div.flex > div > div |
Cointelegraph is committed to providing independent, high-quality journalism ac… div.md:max-w-243 > div.py-4 > div.text-start > p |
All news, reviews, and analysis are produced with full journalistic independenc… div.md:max-w-243 > div.py-4 > div.text-start > p |
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.flex > div.flex > div.w-[4.5rem] > img.image_GVcVq div.flex > div.flex > div.w-[4.5rem] > img.image_GVcVq |
div.header-zone__flower > div.container > div.relative > img.image_GVcVq div.header-zone__flower > div.container > div.relative > img.image_GVcVq |
ul.grid > li.group-[.inline]:mb-8 > div.rounded-lg > img.image_GVcVq ul.grid > li.group-[.inline]:mb-8 > div.rounded-lg > img.image_GVcVq |
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.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| AttributionReporting |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
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
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.flex > div.flex > div.w-[4.5rem] > img.image_GVcVq div.flex > div.flex > div.w-[4.5rem] > img.image_GVcVq |
div.header-zone__flower > div.container > div.relative > img.image_GVcVq div.header-zone__flower > div.container > div.relative > img.image_GVcVq |
ul.grid > li.group-[.inline]:mb-8 > div.rounded-lg > img.image_GVcVq ul.grid > li.group-[.inline]:mb-8 > div.rounded-lg > img.image_GVcVq |
hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about `hreflang`.
Performance issues directly impact user engagement and conversion rates.
head > link#33 |
Format your HTML in a way that enables crawlers to better understand your app’s content.