Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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.

Why this matters

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

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[reflowTime:145.905 source:map[type:text value:[unattributed]]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
AILearnHub Logo `div.container > div.flex > a.flex > img.object-contain`	ailearnhub.net/logos/logo.png	815.0 KiB	814.7 KiB
div.w-full > div.w-full > div.w-full > img `div.w-full > div.w-full > div.w-full > img`	ailearnhub.net/api/classroom-media/dmchhcTnUg/media/gen_img_CTGIyCuJ.png	172.3 KiB	169.4 KiB
AI Teacher `div.relative > div.absolute > div.relative > img.h-full`	ailearnhub.net/landing/hero/teacher.jpg	5.8 KiB	5.1 KiB
AI peer Ming `div.relative > div.flex > div.flex > img.h-9`	ailearnhub.net/landing/hero/peer-logic.jpg	5.3 KiB	5.1 KiB
AI peer Ann `div.relative > div.flex > div.flex > img.h-9`	ailearnhub.net/landing/hero/peer-summary.jpg	4.7 KiB	4.5 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

title: Preconnected origins

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

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
ailearnhub.net/api/classroom-media/dmchhcTnUg/media/gen_img_CTGIyCuJ.png	86400.0 s	174.2 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 890 ms 471.6 KiB

URL	Transfer Size	Est Savings
ailearnhub.net/_next/static/chunks/857-77f7e2b52e38d26a.js	195.1 KiB	156.1 KiB
accounts.google.com/gsi/client	96.3 KiB	72.3 KiB
www.googletagmanager.com/gtag/js?id=G-5WTTQ88398	167.6 KiB	70.4 KiB
ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js	68.3 KiB	46.5 KiB
ailearnhub.net/_next/static/chunks/6266-909182ec55ccc71c.js	31.2 KiB	29.9 KiB
ailearnhub.net/_next/static/chunks/4606-a3c0e914725a51e7.js	37.0 KiB	29.1 KiB
ailearnhub.net/_next/static/chunks/7983-38a4998539d93983.js	31.6 KiB	26.6 KiB
/_next/static/chunks/app/(workspace)/generation-preview/p...	23.4 KiB	20.6 KiB
ailearnhub.net/_next/static/chunks/7633-a2f967e7ad8ba54c.js	21.8 KiB	20.3 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
ailearnhub.net/	13.7 s	23 ms	47 ms
ailearnhub.net/_next/static/chunks/8319-5558a51099377b41.js	5.3 s	4.9 s	14 ms
Unattributable	1.3 s	12 ms	0.0 ms
ailearnhub.net/_next/static/chunks/3a1933ef-9a24917e83d26ee1.js	395 ms	87 ms	35 ms
ailearnhub.net/_next/static/chunks/857-77f7e2b52e38d26a.js	284 ms	228 ms	55 ms
www.googletagmanager.com/gtag/js?id=G-5WTTQ88398	275 ms	228 ms	44 ms
ailearnhub.net/_next/static/chunks/webpack-f3ef3df52906d1c7.js	240 ms	223 ms	0.9 ms
ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js	111 ms	86 ms	24 ms
ailearnhub.net/_next/static/chunks/174-58c62be97ae88a65.js	80 ms	72 ms	7.9 ms
ailearnhub.net/_next/static/chunks/2090-0af1c734781421fa.js	65 ms	64 ms	0.9 ms
/_next/static/chunks/app/(workspace)/generation-preview/p...	56 ms	50 ms	6.1 ms
ailearnhub.net/_next/static/css/d12c650ea665206a.css	50 ms	0.0 ms	0.0 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Style & Layout	6.5 s
Other	6.3 s
Script Evaluation	6.1 s
Rendering	2.6 s
Script Parsing & Compilation	377 ms
Garbage Collection	224 ms
Parse HTML & CSS	135 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

Why this matters

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

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●Avoids enormous network payloads Total size was 2,544 KiB

●Avoid long main-thread tasks 17 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 80 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 340 ms

○INP breakdown

○LCP request discovery

○User Timing marks and measures

○Avoid non-composited animations

○Avoid large layout shifts

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Practice `div.relative > div.relative > div.flex > span.mt-0.5`
Quiz `div.relative > div.relative > div.flex > span.mt-0.5`
Apply `div.relative > div.relative > div.flex > span.mt-0.5`
Deep interaction `div.mt-4 > div.flex > button.relative > span.pt-px`
Recommended `div.mt-4 > div.flex > button.relative > span.absolute`
01 `article.group > div.min-w-0 > div.flex > span.text-xs`
02 `article.group > div.min-w-0 > div.flex > span.text-xs`
03 `article.group > div.min-w-0 > div.flex > span.text-xs`
04 `article.group > div.min-w-0 > div.flex > span.text-xs`
05 `article.group > div.min-w-0 > div.flex > span.text-xs`

These are opportunities to improve the legibility of your content.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Fourier Transform (4-step intuition) `div.relative > div.relative > div.flex > h3.mb-6`

These are opportunities to improve keyboard navigation in your application.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

These are opportunities to improve the interpretation of your content by users in different locales.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

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

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

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

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

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

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

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

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

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●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

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

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

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

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○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 a valid value for its `[lang]` attribute

○`<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

○Links are distinguishable without relying on color.

○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.

○Uses ARIA roles only on compatible elements

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

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

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

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
accounts.google.com/gsi/client line 87, col 88	`[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.`
www.googletagmanager.com/gtag/js?id=G-5WTTQ88398 line 262, col 390	Connecting to 'https://region1.google-analytics.com/g/collect?v=2&tid=G-5WTTQ88398&gtm=45je68o1h1v9249490922za200zd9249490922&_p=1787764611645&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1179343402.1787764612&frm=0&ngs=1&pscdl=noapi&rcb=3&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B151.0.7922.169%7CNot%253DA%253FBrand%3B99.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938468~118897920~118897930~119367802~119367810~120213116~120385423&dp=%2F&sid=1787764611&sct=1&seg=0&dl=https%3A%2F%2Failearnhub.net%2F&dt=AILearnHub%3A%20Turn%20Any%20Topic%20into%20an%20AI-Generated%20Lesson&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1767' violates the following Content Security Policy directive: "connect-src 'self' https://www.google-analytics.com https://analytics.google.com https://umami.bestvid.net https://accounts.google.com https://api.stripe.com https://*.ailearnhub.net". The action has been blocked.
www.googletagmanager.com/gtag/js?id=G-5WTTQ88398 line 262, col 390	Fetch API cannot load https://region1.google-analytics.com/g/collect?v=2&tid=G-5WTTQ88398&gtm=45je68o1h1v9249490922za200zd9249490922&_p=1787764611645&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=1179343402.1787764612&frm=0&ngs=1&pscdl=noapi&rcb=3&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B151.0.7922.169%7CNot%253DA%253FBrand%3B99.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938468~118897920~118897930~119367802~119367810~120213116~120385423&dp=%2F&sid=1787764611&sct=1&seg=0&dl=https%3A%2F%2Failearnhub.net%2F&dt=AILearnHub%3A%20Turn%20Any%20Topic%20into%20an%20AI-Generated%20Lesson&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1767. Refused to connect because it violates the document's Content Security Policy.
ailearnhub.net/	`Not signed in with the identity provider.`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
ailearnhub.net/_next/static/chunks/857-77f7e2b52e38d26a.js

●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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

○Detected JavaScript libraries

100

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.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`