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 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
img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpg	0.0 ms	565.3 KiB
/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin...	0.0 ms	421.8 KiB
img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.png	0.0 ms	277.1 KiB
img01.mybjx.net/news/WechatImage/202604/17768486176665128.png	0.0 ms	274.0 KiB
img01.mybjx.net/news/WechatImage/202604/17768500312130756.png	0.0 ms	177.0 KiB
img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.png	0.0 ms	127.0 KiB
img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpeg	0.0 ms	92.5 KiB
/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=1...	0.0 ms	51.8 KiB
img01.mybjx.net/news/WechatImage/202604/17768480518222569.png	0.0 ms	50.9 KiB
img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.png	0.0 ms	39.5 KiB
img01.mybjx.net/news/UploadFile/202604/6aef7668246c4acbab7b18a10b15de80.png	0.0 ms	37.3 KiB
/public/a220127/bjx_mt_m_00/js/lib/jquery.min.js?_=202604...	0.0 ms	32.3 KiB
img01.mybjx.net/news/WechatImage/202604/17768463406349909.png	0.0 ms	30.3 KiB
img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.png	0.0 ms	27.6 KiB
img01.mybjx.net/news/WechatImage/202604/17768438614750686.png	0.0 ms	26.2 KiB
/public/a220127/bjx_mt_m_00/js/lib/swiper.jquery.min.js?_...	0.0 ms	21.3 KiB
/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin...	0.0 ms	13.2 KiB
img.mybjx.net/theme/default/images/common/loading.gif	0.0 ms	12.3 KiB
/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_...	0.0 ms	11.1 KiB
img01.mybjx.net/news/UploadFile/202604/5fd2f684c8b54cc1aced18c47a10cca9.png	0.0 ms	10.0 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520	0.0 ms	6.5 KiB
/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=163...	0.0 ms	6.3 KiB
/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520	0.0 ms	6.1 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/login.js?_=20260422180520	0.0 ms	5.7 KiB
/public/a220127/bjx_mt_m_00/img/defaulthead.png?_=2026042...	0.0 ms	3.1 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/comm.js?_=20260422180520	0.0 ms	2.6 KiB
/public/a220127/bjx_mt_m_00/js/nunjucks_env.js?_=20260422...	0.0 ms	2.0 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/tpl/list.js?_=20260422180520	0.0 ms	1.3 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/home.js?_=20260422180520	0.0 ms	1.1 KiB
newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/nav.js?_=20260422180520	0.0 ms	919 B
/public/a220127/bjx_mt_m_00/js/openScreenAd.js?_=20260422...	0.0 ms	911 B
w.cnzz.com/c.php?id=30085320	90.0 s	369 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/public/a220127/bjx_mt_m_00/css/font/iconfont.woff2?t=163...	350 ms

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:2603.428 label:Time to first byte subpart:timeToFirstByte] map[duration:2114.792 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-H5

nodeLabel: 工信部：着力引导工业领域节能降碳开展氢能综合应用试点

path: 1,HTML,1,BODY,3,DIV,0,DIV,4,DIV,0,A,0,H5

selector: div.box > div.item > a > h5

snippet: <h5>

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.

URL	Transfer Size	Duration
/public/a220127/bjx_mt_m_00/css/default.css?_=20260422180520	6.1 KiB	1.7 s

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
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/b3f7c17dd54f4d44878b5926b570f1ff.jpg	564.3 KiB	550.8 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768486176665128.png	273.3 KiB	267.9 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/955fb146f92249de93427f61db88802e.png	276.5 KiB	262.9 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768500312130756.png	176.4 KiB	170.5 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/14b7ef8810a04f66bd93747fa5237c8b.png	126.5 KiB	121.1 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768494276978976.jpeg	91.9 KiB	85.7 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768480518222569.png	50.5 KiB	43.1 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/c758cbc523424bce91822ed1eb2fefa7.png	39.1 KiB	30.0 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/6aef7668246c4acbab7b18a10b15de80.png	36.9 KiB	28.1 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768463406349909.png	29.9 KiB	27.4 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/WechatImage/202604/17768438614750686.png	25.7 KiB	21.5 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/77a899f4a7d94b0889d1e70b5d1d374e.png	27.2 KiB	20.4 KiB
div.box > div.item > a > img `div.box > div.item > a > img`	img01.mybjx.net/news/UploadFile/202604/5fd2f684c8b54cc1aced18c47a10cca9.png	9.6 KiB	5.2 KiB
div.bjx-m-header > div.box > div.logo > img `div.bjx-m-header > div.box > div.logo > img`	newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520	6.2 KiB	4.5 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.9 s

URL	Time Spent
bjx.com.cn/	1.8 s
www.bjx.com.cn/	1.1 s
wap.bjx.com.cn/	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.

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

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 13.0 KiB

URL	Transfer Size	Est Savings
/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin...	13.0 KiB	13.0 KiB

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: 0.0 ms 366.0 KiB

URL	Transfer Size	Est Savings
/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin...	420.7 KiB	335.7 KiB
/public/a220127/bjx_mt_m_00/js/lib/sensorsdata.min.js?_=1...	51.4 KiB	30.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.bjx-m-header > div.box > div.logo > img `div.bjx-m-header > div.box > div.logo > img`	newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/img/mlogo.png?_=20260422180520

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

●Layout shift culprits

●Optimize DOM size

●Forced reflow

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 2,356 KiB

●JavaScript execution time 0.7 s

●Minimizes main-thread work 1.9 s

●Avoid long main-thread tasks 5 long tasks found

●Network Requests

●Network Round Trip Times 360 ms

●Server Backend Latencies 590 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 430 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○LCP request discovery

○User Timing marks and measures

○Avoid non-composited animations

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
登录 `div.box > div.icons > div.user > a`
新型电力系统 `div.bjx-m-header > div.box > div.hot > a`
源网荷储 `div.bjx-m-header > div.box > div.hot > a`
风光基地 `div.bjx-m-header > div.box > div.hot > a`
新型储能 `div.bjx-m-header > div.box > div.hot > a`
电力交易 `div.bjx-m-header > div.box > div.hot > a`
绿电 `div.bjx-m-header > div.box > div.hot > a`
要闻北极星电力网19小时前 `div.box > div.item > a > p`
要闻 `div.item > a > p > span.red`
要闻三峡小微18小时前 `div.box > div.item > a > p`
要闻 `div.item > a > p > span.red`
要闻中国政府网前天 `div.box > div.item > a > p`
要闻 `div.item > a > p > span.red`
辽宁省发改委10小时前 `div.box > div.item > a > p`
工信部11小时前 `div.box > div.item > a > p`
大连化物所11小时前 `div.box > div.item > a > p`
新华社11小时前 `div.box > div.item > a > p`
大唐集团11小时前 `div.box > div.item > a > p`
北极星环保网12小时前 `div.box > div.item > a > p`
华南环境科学研究所12小时前 `div.box > div.item > a > p`
高工储能12小时前 `div.box > div.item > a > p`
新华社12小时前 `div.box > div.item > a > p`
广州电力交易中心12小时前 `div.box > div.item > a > p`
湖北省发展和改革委员会12小时前 `div.box > div.item > a > p`
陕西省发展和改革委员会12小时前 `div.box > div.item > a > p`
兰木达电力现货12小时前 `div.box > div.item > a > p`
青海省能源局12小时前 `div.box > div.item > a > p`
北极星储能网12小时前 `div.box > div.item > a > p`
北极星风力发电网13小时前 `div.box > div.item > a > p`
北极星环保网13小时前 `div.box > div.item > a > p`
北极星风力发电网13小时前 `div.box > div.item > a > p`
山东发布13小时前 `div.box > div.item > a > p`
北极星风力发电网13小时前 `div.box > div.item > a > p`
中国电力报14小时前 `div.box > div.item > a > p`
中国电力报14小时前 `div.box > div.item > a > p`
海南省生态环境厅14小时前 `div.box > div.item > a > p`
北极星电力市场网14小时前 `div.box > div.item > a > p`
中国电力报14小时前 `div.box > div.item > a > p`
安徽电力交易中心14小时前 `div.box > div.item > a > p`
中国电力报14小时前 `div.box > div.item > a > p`
能源评论•首席能源观14小时前 `div.box > div.item > a > p`
瓜州发布15小时前 `div.box > div.item > a > p`
安徽电力交易中心15小时前 `div.box > div.item > a > p`
版权所有©1999-2026 北极星电力网 `body > footer`

These are opportunities to improve the legibility of your content.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta `head > meta`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

These items highlight common accessibility best practices.

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

●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.

●Heading elements appear in a sequentially-descending order

○`[accesskey]` values are unique

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

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

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

○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

○Elements use only permitted ARIA attributes

○`[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

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

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

○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

○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.

○Identical links have the same purpose.

○Elements with visible text labels have matching accessible names.

○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

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URL	Request Resolution
img.mybjx.net/theme/default/images/common/loading.gif	Automatically upgraded to HTTPS

General

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
Mixed content
Cookie

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	Map URL
/login/a251010/bjx_login_center/assets/sdk/1.0.3/bjxLogin...
/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js?_...	newsstatic.bjx.com.cn/public/a220127/bjx_mt_m_00/js/lib/nunjucks-slim.min.js.map

●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 browser errors logged to the console

●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

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

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`