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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

65

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
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section0.png?v=17248343020.0 ms829.8 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1.png?v=17248343020.0 ms529.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section1.png?v=17248343020.0 ms244.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section0.png?v=17248343020.0 ms186.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/adimg-2.png?v=17248343020.0 ms55.0 KiB
/ssl/common/lib/jquery-ui-1.8.23.custom.min.js?v=17248343020.0 ms51.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/t_section2.png?v=17248343020.0 ms41.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery-1.8.2.min.js?v=17248343020.0 ms33.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/images/common.png?v=17248329280.0 ms30.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/device.png?v=17248343020.0 ms24.7 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1_03.png?v=17248343020.0 ms13.1 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1_05.png?v=17248343020.0 ms12.3 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/rsapublic.js?v=17248343020.0 ms9.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/js/plug.js?v=17248343020.0 ms5.9 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/js/index.js?v=17248343020.0 ms4.0 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/js/common.js?v=17248343020.0 ms3.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/css/index.css?v=17248343020.0 ms3.4 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=17248343020.0 ms3.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png0.0 ms3.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/js/checkUpdate.js?v=17248343020.0 ms2.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/i18n/en.js?v=17248343020.0 ms2.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/css/plug.css?v=17248343020.0 ms2.1 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/css/common.css?v=17248343020.0 ms1.9 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/js/ipc-basic-libs.js?v=17248343020.0 ms1.8 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery.cookie.js?v=17248343020.0 ms1.6 KiB
/ssl/common/lib/jquery.scrollLoading.js?v=17248343020.0 ms1.5 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/js/tips.js?v=17248343020.0 ms1.4 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/login-banner.png?v=1.00.0 ms1.4 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/js/maintain.js?v=17248343020.0 ms1.3 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/css/head.css?v=17248343020.0 ms1.3 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/js/validate.js?v=17248343020.0 ms1.3 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/images/blue-line.png?v=17248329280.0 ms1.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/common/css/foot.css?v=17248343020.0 ms1.2 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/css/tips.css?v=17248343020.0 ms1.1 KiB
d2baw28zdve8g3.cloudfront.net/ssl/index/js/isFlashEnv.js?v=17248343020.0 ms1.1 KiB
www.google-analytics.com/plugins/ua/linkid.js3600.0 s995 B
d2baw28zdve8g3.cloudfront.net/ssl/index/images/underbtnsplit.png?v=1.00.0 ms608 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.

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-0-IMG
nodeLabel: ipcamera
path: 3,HTML,1,BODY,1,DIV,0,DIV,0,IMG
selector: body > div#indexcontainer > div#indexmain > img.adimg
snippet: <img class="adimg loadingImg" style="display:block;margin:auto;" alt="ipcamera" src="https://d2baw28zdve8g3.cloudfront.net/ssl/index/images/adimg-2.png?v=17248…">

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
d2baw28zdve8g3.cloudfront.net/ssl/index/js/isFlashEnv.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery-1.8.2.min.js?v=1724834302http/1.1
/ssl/common/lib/jquery-ui-1.8.23.custom.min.js?v=1724834302http/1.1
/ssl/common/lib/jquery.scrollLoading.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery.cookie.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/js/tips.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/js/checkUpdate.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/js/index.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/css/common.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/css/foot.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/css/index.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/css/tips.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/css/head.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/css/plug.css?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/adimg-2.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/js/common.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/js/plug.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/i18n/en.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/js/validate.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/js/maintain.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/rsapublic.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/js/ipc-basic-libs.js?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/common/images/common.png?v=1724832928http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.pnghttp/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/login-banner.png?v=1.0http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/underbtnsplit.png?v=1.0http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/blue-line.png?v=1724832928http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section0.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section1.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/device.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section0.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1_03.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/tp_section1_05.png?v=1724834302http/1.1
d2baw28zdve8g3.cloudfront.net/ssl/index/images/t_section2.png?v=1724834302http/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

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
d2baw28zdve8g3.cloudfront.net/ssl/index/js/index.js?v=17248343024.0 KiB499 ms
d2baw28zdve8g3.cloudfront.net/ssl/index/js/checkUpdate.js?v=17248343022.2 KiB499 ms
/ssl/common/lib/jquery-ui-1.8.23.custom.min.js?v=172483430251.5 KiB2.0 s
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery-1.8.2.min.js?v=172483430233.5 KiB1.8 s
d2baw28zdve8g3.cloudfront.net/ssl/index/js/tips.js?v=17248343021.4 KiB499 ms
/ssl/common/lib/jquery.scrollLoading.js?v=17248343021.5 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/jquery.cookie.js?v=17248343021.6 KiB499 ms
d2baw28zdve8g3.cloudfront.net/ssl/index/js/isFlashEnv.js?v=17248343021.1 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/index/css/tips.css?v=17248343021.1 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/common/css/common.css?v=17248343021.9 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/common/css/head.css?v=17248343021.3 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/common/css/plug.css?v=17248343022.1 KiB799 ms
d2baw28zdve8g3.cloudfront.net/ssl/index/css/index.css?v=17248343023.4 KiB965 ms
d2baw28zdve8g3.cloudfront.net/ssl/common/css/foot.css?v=17248343021.2 KiB799 ms

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
div.section-holder > div.sectionmain > div#section0 > img.loadingImg div.section-holder > div.sectionmain > div#section0 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section0.png?v=1724834302829.3 KiB711.5 KiB
div.section-holder > div.sectionmain > div#section1 > img.loadingImg div.section-holder > div.sectionmain > div#section1 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section1.png?v=1724834302244.0 KiB209.6 KiB
div#header > div#top > div#logo > a div#header > div#top > div#logo > a
d2baw28zdve8g3.cloudfront.net/ssl/common/images/common.png?v=172483292829.7 KiB9.7 KiB

Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 1.6 s
URLTime Spent
tplinkcloud.com/844 ms
www.tplinkcloud.com/783 ms
www.tplinkcloud.com/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

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: 450 ms 45.2 KiB
URLTransfer SizeEst Savings
/ssl/common/lib/jquery-ui-1.8.23.custom.min.js?v=172483430250.9 KiB45.2 KiB

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 3.6 KiB
URLTransfer SizeEst Savings
d2baw28zdve8g3.cloudfront.net/ssl/common/lib/rsapublic.js?v=17248343028.7 KiB3.6 KiB

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 39.1 KiB
URLTransfer SizeEst Savings
@font-face { font-family: 'MYRIADPRO-LIGHTSEMIEXT'; … } …39.1 KiB39.1 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
ipcamera body > div#indexcontainer > div#indexmain > img.adimg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/adimg-2.png?v=1724834302
div.section-holder > div.sectionmain > div#section0 > img.loadingImg div.section-holder > div.sectionmain > div#section0 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section0.png?v=1724834302
div.section-holder > div.sectionmain > div#section1 > img.loadingImg div.section-holder > div.sectionmain > div#section1 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section1.png?v=1724834302
div.section-holder > div.sectionmain > div#section2 > img.loadingImg div.section-holder > div.sectionmain > div#section2 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302
div.section-holder > div.sectionmain > div#section3 > img.loadingImg div.section-holder > div.sectionmain > div#section3 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302
div.section-holder > div.sectionmain > div#section4 > img.loadingImg div.section-holder > div.sectionmain > div#section4 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302
div.section-holder > div.sectionmain > div#section5 > img.loadingImg div.section-holder > div.sectionmain > div#section5 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302
div.section-holder > div.sectionmain > div#section6 > img.loadingImg div.section-holder > div.sectionmain > div#section6 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302
div.section-holder > div.sectionmain > div#section7 > img.loadingImg div.section-holder > div.sectionmain > div#section7 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/px.png?v=1724834302

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

●Layout shift culprits
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Max Potential First Input Delay 60 ms
●Minify CSS
●Avoids enormous network payloads Total size was 2,197 KiB
●JavaScript execution time 0.2 s
●Minimizes main-thread work 0.6 s
●Avoid long main-thread tasks 1 long task found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 30 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 70 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
○Avoid large layout shifts
48

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
div#login > div.putin > div.loginmode > input#Email div#login > div.putin > div.loginmode > input#Email
Password div#login > div.putin > div.loginmode > span#passwordshow
Introduction div.floattitle-holder-cell > ul#floattitle-list > li#titlehome > span.lang
Invasion Alert div.section-holder > div.sectionmain > div#section3 > div#section_text_0_3_0
Get immediate notifications by email and know what is happening on the ground. … div.section-holder > div.sectionmain > div#section3 > div#section_text_0_3_1
TP-LINK div#footcontain > div#btmlink > nav > a#tpindex
Terms of Use div#footcontain > div#btmlink > nav > a#terms of use
Privacy Policy div#footcontain > div#btmlink > nav > a#privacy
Contact Us div#footcontain > div#btmlink > nav > a#contactus
Copyright © 2024 TP-Link Systems Inc.All rights reserved. body > div#templatemo_footer > div#footcontain > span.btmabout
TP-Link Systems Inc. div#templatemo_footer > div#footcontain > span.btmabout > span
All rights reserved. div#templatemo_footer > div#footcontain > span.btmabout > span

These are opportunities to improve the legibility of your content.

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.section-holder > div.sectionmain > div#section0 > img.loadingImg div.section-holder > div.sectionmain > div#section0 > img.loadingImg
div.section-holder > div.sectionmain > div#section1 > img.loadingImg div.section-holder > div.sectionmain > div#section1 > img.loadingImg
div.section-holder > div.sectionmain > div#section2 > img.loadingImg div.section-holder > div.sectionmain > div#section2 > img.loadingImg
div.section-holder > div.sectionmain > div#section3 > img.loadingImg div.section-holder > div.sectionmain > div#section3 > img.loadingImg
div.section-holder > div.sectionmain > div#section4 > img.loadingImg div.section-holder > div.sectionmain > div#section4 > img.loadingImg
div.section-holder > div.sectionmain > div#section5 > img.loadingImg div.section-holder > div.sectionmain > div#section5 > img.loadingImg
div.section-holder > div.sectionmain > div#section6 > img.loadingImg div.section-holder > div.sectionmain > div#section6 > img.loadingImg
div.section-holder > div.sectionmain > div#section7 > img.loadingImg div.section-holder > div.sectionmain > div#section7 > img.loadingImg

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#login > div.putin > div.loginmode > input#Email div#login > div.putin > div.loginmode > input#Email
div#login > div.putin > div.loginmode > input#Password div#login > div.putin > div.loginmode > input#Password

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#header > div#top > div#logo > a div#header > div#top > div#logo > a
div#footcontain > ul#social-icons > li > a.facebook div#footcontain > ul#social-icons > li > a.facebook
div#footcontain > ul#social-icons > li > a.twitter div#footcontain > ul#social-icons > li > a.twitter
div#footcontain > ul#social-icons > li > a.youtobe div#footcontain > ul#social-icons > li > a.youtobe
div#footcontain > ul#social-icons > li > a.linkedin div#footcontain > ul#social-icons > li > a.linkedin

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.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#login > div.putin > div.loginmode > input#Email div#login > div.putin > div.loginmode > input#Email
div#login > div.putin > div.loginmode > input#Password div#login > div.putin > div.loginmode > input#Password
div.rememberpwd > div.remeberaccount-holder > div.checkbox-holder > div.checkbox div.rememberpwd > div.remeberaccount-holder > div.checkbox-holder > div.checkbox
div#login > div.putin > div.loginbtn > input#submit_btn div#login > div.putin > div.loginbtn > input#submit_btn
Forgot password? div#login > div.putin > div.findregister > a#forgotpass
Not registered? div#login > div.putin > div.findregister > a#regist

These are opportunities to improve keyboard navigation in your application.

Best practices

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>`
●Input buttons have discernible text.
●Document has a `<title>` element
●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.
●The page contains a heading, skip link, or landmark region
○`[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
○Buttons have an accessible name
○`<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
○Heading elements appear in a sequentially-descending order
○`<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 type="image">` elements have `[alt]` text
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○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.
73

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 URLRequest Resolution
www.tplinkcloud.com/Allowed

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
div.section-holder > div.sectionmain > div#section0 > img.loadingImg div.section-holder > div.sectionmain > div#section0 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section0.png?v=17248343021065 x 6801065 x 6801598 x 1020
div.section-holder > div.sectionmain > div#section1 > img.loadingImg div.section-holder > div.sectionmain > div#section1 > img.loadingImg
d2baw28zdve8g3.cloudfront.net/ssl/index/images/m_section1.png?v=1724834302545 x 388545 x 388818 x 582

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

●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
●Properly defines charset
●No browser errors logged to the console
●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
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
83

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Global li.toplink > div#changelanguageholder > div.globalholder > a.topcolor

To appear in search results, crawlers need access to your app.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.section-holder > div.sectionmain > div#section0 > img.loadingImg div.section-holder > div.sectionmain > div#section0 > img.loadingImg
div.section-holder > div.sectionmain > div#section1 > img.loadingImg div.section-holder > div.sectionmain > div#section1 > img.loadingImg
div.section-holder > div.sectionmain > div#section2 > img.loadingImg div.section-holder > div.sectionmain > div#section2 > img.loadingImg
div.section-holder > div.sectionmain > div#section3 > img.loadingImg div.section-holder > div.sectionmain > div#section3 > img.loadingImg
div.section-holder > div.sectionmain > div#section4 > img.loadingImg div.section-holder > div.sectionmain > div#section4 > img.loadingImg
div.section-holder > div.sectionmain > div#section5 > img.loadingImg div.section-holder > div.sectionmain > div#section5 > img.loadingImg
div.section-holder > div.sectionmain > div#section6 > img.loadingImg div.section-holder > div.sectionmain > div#section6 > img.loadingImg
div.section-holder > div.sectionmain > div#section7 > img.loadingImg div.section-holder > div.sectionmain > div#section7 > img.loadingImg

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
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●robots.txt is valid
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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