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

Audit breakdown by category with detailed findings.

67

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 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.

RequestCache TTLTransfer Size
/api/public/video-showcase/media/ppt-portrait-kids-grit-0...300.0 s353.1 KiB
ai.zhailaoban.com/api/public/video-showcase/media/comic-exam-score-001/thumb300.0 s287.9 KiB
ai.zhailaoban.com/api/public/video-showcase/media/ppt-portrait-you-can-001/thumb300.0 s259.8 KiB
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-long-001/thumb300.0 s246.9 KiB
/api/public/video-showcase/media/ppt-landscape-liberal-ar...300.0 s240.1 KiB
/api/public/video-showcase/media/ppt-landscape-ai-express...300.0 s226.6 KiB
ai.zhailaoban.com/api/public/video-showcase/media/icon-chinese-study-001/thumb300.0 s184.7 KiB
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-minute-001/thumb300.0 s121.8 KiB
ai.zhailaoban.com/api/public/video-showcase/media/health-sales-trust-001/thumb300.0 s116.5 KiB
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-short-001/thumb300.0 s100.4 KiB
/api/public/video-showcase/media/comic-pro-midnight-cinem...300.0 s59.0 KiB
/api/public/video-showcase/media/lecture-ppt-vocabulary-0...300.0 s34.1 KiB
ai.zhailaoban.com/api/public/video-showcase/media/lecture-ppt-reading-001/thumb300.0 s30.3 KiB
/api/public/video-showcase/media/lecture-ppt-weekly-plan-...300.0 s29.7 KiB
/api/public/video-showcase/media/education-illustration-h...300.0 s22.4 KiB

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.42060592067244545] map[node:map[boundingRect:map[bottom:9912 height:9324 left:75 right:1275 top:588 width:1200] lhId:page-15-SECTION nodeLabel:▶ PPT竖屏 9:16 孩子成事靠 2 种气质 PPT竖屏 · 自定义背景 PPT竖屏 PPT竖屏 自定义背景 自定义背景 家庭教育 观看 ▶ PPT竖… path:1,HTML,1,BODY,6,MAIN,2,SECTION selector:body > main > section.content snippet:<section class="content"> type:node] score:0.4141418439716312] map[node:map[boundingRect:map[bottom:9912 height:9324 left:75 right:1275 top:588 width:1200] lhId:page-15-SECTION nodeLabel:▶ PPT竖屏 9:16 孩子成事靠 2 种气质 PPT竖屏 · 自定义背景 PPT竖屏 PPT竖屏 自定义背景 自定义背景 家庭教育 观看 ▶ PPT竖… path:1,HTML,1,BODY,6,MAIN,2,SECTION selector:body > main > section.content snippet:<section class="content"> type:node] score:0.006464076700814289]]

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.

URLResource SizeEst Savings
孩子成事靠 2 种气质 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/ppt-portrait-kids-grit-0...352.8 KiB313.5 KiB
中考查分 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/comic-exam-score-001/thumb287.6 KiB277.0 KiB
这条视频你也能做 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/ppt-portrait-you-can-001/thumb259.4 KiB222.7 KiB
不用录口播也能做IP视频 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-long-001/thumb246.6 KiB211.7 KiB
文科生的春天来了 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/ppt-landscape-liberal-ar...239.8 KiB205.8 KiB
AI 时代，不会表达的人 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/ppt-landscape-ai-express...226.2 KiB194.2 KiB
语文学习方法 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/icon-chinese-study-001/thumb184.4 KiB158.3 KiB
拍了很多视频没人咨询 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-minute-001/thumb121.5 KiB104.3 KiB
大健康销售最狠的一招 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/health-sales-trust-001/thumb116.1 KiB99.7 KiB
招生视频的致命误区 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-short-001/thumb100.0 KiB85.9 KiB
单词记忆靠语境复现 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/lecture-ppt-vocabulary-0...33.7 KiB22.5 KiB
logo nav.nav > div.nav-inner > a.nav-logo > img
ai.zhailaoban.com/static/logo-128.png21.3 KiB21.1 KiB
阅读答题先读懂题目 div#sample-grid > article.sample-card > div.sample-media > img
ai.zhailaoban.com/api/public/video-showcase/media/lecture-ppt-reading-001/thumb30.0 KiB20.0 KiB
周计划先排硬任务 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/lecture-ppt-weekly-plan-...29.3 KiB19.6 KiB
漂亮笔记不等于真会了 div#sample-grid > article.sample-card > div.sample-media > img
/api/public/video-showcase/media/comic-pro-midnight-cinem...58.7 KiB19.3 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-2-IMG
nodeLabel: 这条视频你也能做
path: 1,HTML,1,BODY,6,MAIN,2,SECTION,1,DIV,1,ARTICLE,0,DIV,0,IMG
selector: div#sample-grid > article.sample-card > div.sample-media > img
snippet: <img src="/api/public/video-showcase/media/ppt-portrait-you-can-001/thumb" alt="这条视频你也能做" loading="lazy">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
ai.zhailaoban.com/showcasehttp/1.1
ai.zhailaoban.com/static/social_proof.css?v=1http/1.1
ai.zhailaoban.com/static/social_proof.js?v=1http/1.1
ai.zhailaoban.com/static/logo-128.pnghttp/1.1
ai.zhailaoban.com/static/beian.pnghttp/1.1
ai.zhailaoban.com/static/ai_support.css?v=20260927support4http/1.1
ai.zhailaoban.com/static/ai_support.js?v=20260927support4http/1.1
ai.zhailaoban.com/api/public/video-showcasehttp/1.1
/api/public/video-showcase/media/ppt-portrait-kids-grit-0...http/1.1
ai.zhailaoban.com/api/public/video-showcase/media/ppt-portrait-you-can-001/thumbhttp/1.1
/api/public/video-showcase/media/ppt-landscape-liberal-ar...http/1.1
/api/public/video-showcase/media/ppt-landscape-ai-express...http/1.1
ai.zhailaoban.com/api/public/video-showcase/media/lecture-ppt-reading-001/thumbhttp/1.1
/api/public/video-showcase/media/lecture-ppt-vocabulary-0...http/1.1
/api/public/video-showcase/media/lecture-ppt-weekly-plan-...http/1.1
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-short-001/thumbhttp/1.1
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-minute-001/thumbhttp/1.1
ai.zhailaoban.com/api/public/video-showcase/media/ip-photo-ppt-long-001/thumbhttp/1.1
ai.zhailaoban.com/api/public/video-showcase/media/icon-chinese-study-001/thumbhttp/1.1
ai.zhailaoban.com/api/public/video-showcase/media/health-sales-trust-001/thumbhttp/1.1
/api/public/video-showcase/media/education-illustration-h...http/1.1
ai.zhailaoban.com/api/public/video-showcase/media/comic-exam-score-001/thumbhttp/1.1
/api/public/video-showcase/media/comic-pro-midnight-cinem...http/1.1
ai.zhailaoban.com/api/public/activityhttp/1.1
ai.zhailaoban.com/favicon.icohttp/1.1

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
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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
ai.zhailaoban.com/static/social_proof.css?v=11.8 KiB230 ms

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

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 3.2 KiB
URLTransfer SizeEst Savings
ai.zhailaoban.com/static/ai_support.js?v=20260927support418.3 KiB3.2 KiB

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

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
▶ PPT竖屏 9:16 孩子成事靠 2 种气质 PPT竖屏 · 自定义背景 PPT竖屏 PPT竖屏 自定义背景 自定义背景 家庭教育 观看 ▶ PPT竖… body > main > section.content
0.414
▶ PPT竖屏 9:16 孩子成事靠 2 种气质 PPT竖屏 · 自定义背景 PPT竖屏 PPT竖屏 自定义背景 自定义背景 家庭教育 观看 ▶ PPT竖… body > main > section.content
0.006
●Time to Interactive 2.2 s
●Document request latency
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Optimize viewport for mobile
●Max Potential First Input Delay 20 ms
●Minify CSS
●Reduce unused CSS
●Reduce unused JavaScript
●Avoids enormous network payloads Total size was 2,396 KiB
●JavaScript execution time 0.0 s
●Minimizes main-thread work 0.2 s
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 170 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 180 ms
○INP breakdown
○User Timing marks and measures
○Avoid long main-thread tasks
○Avoid non-composited animations
92

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
🎞️ 样片 body > div.nav-mobile-grid > a.active
VIDEO SHOWCASE body > main > section.page-head > div.eyebrow
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
用同款生成 article.sample-card > div.sample-info > div.card-actions > a.card-btn
© 2026 宅老板·秒出片 · 鲁ICP备2025143445号-2 · 鲁公网安备37010202700598号 body > footer.site-footer-unified > div
鲁ICP备2025143445号-2 body > footer.site-footer-unified > div > a
鲁公网安备37010202700598号 body > footer.site-footer-unified > div > a

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
孩子成事靠 2 种气质 div#sample-grid > article.sample-card > div.sample-info > h3.sample-title

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-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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 attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●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
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-hidden="true"]` elements do not contain focusable descendents
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○`[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
○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 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
○Links are distinguishable without relying on color.
○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.
○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.
96

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.

SourceDescription
ai.zhailaoban.com/favicon.ico
Failed to load resource: the server responded with a status of 404 (Not Found)
●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 issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Detected JavaScript libraries
92

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

○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
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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