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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.

30

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
ad-specs.guoshipartners.com/static/js/player-mib.min.js360.0 s267.9 KiB
/wp-content/uploads/2026/04/SPY是什麼?SPY-ETF-追蹤...0.0 ms120.4 KiB
anymind360.com/js/9479/ats.js1200.0 s112.9 KiB
mma.prnasia.com/media2/2963346/TICKET_SOLD_OUT_TC.jpg?p=medium6001.0 s98.6 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
pagead2.googlesyndication.com/pagead/js/lidar.js?fcd=true3600.0 s83.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
cdn.holmesmind.com/js/js-md5.js0.0 ms30.3 KiB
re-news.tw/images/renews-title1.png0.0 ms24.1 KiB
s0.2mdn.net/879366/html_inpage_rendering_lib_200_287.js86400.0 s59.4 KiB
/signals/config/1675200226052423?v=2.9.303&r=stable&domai...1200.0 s25.6 KiB
/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy...1209600.0 s177.5 KiB
tracking-client.91app.com/1.2.0/nineyi.tracking.client.iife.js0.0 ms17.1 KiB
s0.2mdn.net/879366/Enabler_01_262.js86400.0 s41.2 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
ad-specs.guoshipartners.com/static/js/isip.js360.0 s14.1 KiB
ad-specs.guoshipartners.com/static/js/ad-serv.min.js360.0 s13.7 KiB
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s14.4 KiB
cdn.holmesmind.com/js/presetfn.js?202311150.0 ms11.1 KiB
img.gbyhn.com.tw/2026/04/1776888454-8dcf7bcd68ebcb237bbb4bf77bfd93bb-840x525.jpg604800.0 s110.0 KiB
cdn.holmesmind.com/js/init.js0.0 ms10.3 KiB
cdn.holmesmind.com/js/contextual_trigger.min.js0.0 ms7.4 KiB
ad-specs.guoshipartners.com/static/js/onead-lib.min.js360.0 s7.4 KiB
static.criteo.net/js/ld/publishertag.ids.js86400.0 s14.8 KiB
tags.crwdcntrl.net/lt/c/16589/sync.min.js86400.0 s13.5 KiB
sb.scorecardresearch.com/internal-cs/default/beacon-and.js86400.0 s7.9 KiB
reurl.cc/asset/images/section-linebot.webp604800.0 s31.3 KiB
invstatic101.creativecdn.com/encrypted-signals/encrypted-tag-g.js0.0 ms2.9 KiB
t.ssp.hinet.net/tag.js600.0 s2.6 KiB
t.ssp.hinet.net/utag.js600.0 s2.6 KiB
cdn.jsdelivr.net/npm/sweetalert2@9/dist/sweetalert2.all.min.js604800.0 s18.2 KiB
pagead2.googlesyndication.com/pagead/js/r20260421/r20110914/abg_lite.js1209600.0 s10.5 KiB
onead.onevision.com.tw/v2/et/oid?cb=window.text_etag_callback_4jawv600.0 s1.1 KiB
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s8.9 KiB
pagead2.googlesyndication.com/pagead/js/r20260421/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
reurl.cc/asset/javascripts/home/vue-qrcode.min.js604800.0 s7.6 KiB
/pixel/bounce/?pid=3m51m51&uid=998e6be4-3e8f-11f1-849a-42...0.0 ms747 B
reurl.cc/asset/images/section-api.webp604800.0 s7.1 KiB
fcm2.holmesmind.com/cm.js0.0 ms632 B
onead.onevision.com.tw/v2/et/oid?cb=window.etag_callback_isip_4jb25600.0 s668 B
/pagead/js/r20260421/r20110914/elements/html/omrhp.js1209600.0 s4.7 KiB
cm.lndata.com/?tid=4084&uid=media_cookie_id0.0 ms470 B
/v/t39.30808-1/302181889_449668210518240_1343224774275673...1209600.0 s4.4 KiB
reurl.cc/asset/images/section-extention.webp604800.0 s4.1 KiB
reurl.cc/asset/javascripts/common/file_saver.js604800.0 s4.1 KiB
m.holmesmind.com/ml/google?cf_uid=undefined&uu_m=undefined&google_error=33600.0 s440 B
/pagead/js/r20260421/r20110914/elements/html/omrhp_fy2021.js1209600.0 s3.3 KiB
match.adsrvr.org/track/cmb/generic?ttd_pid=r1jlltl&ttd_tpi=10.0 ms254 B
reurl.cc/asset/javascripts/home/main.js?v=21604800.0 s2.4 KiB
cm-dev-poc.holmesmind.com/fp0.0 ms217 B
reurl.cc/asset/stylesheets/style.css?v=1604800.0 s1.9 KiB
/pixel?bd=21124708-dfbe-4514-adb7-9967ff1a7216&t=50ef570.0 ms177 B
/pixel?bd=4f381386-3699-491a-861f-fe57f32b681a&t=cf&refer...0.0 ms177 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.3 KiB
reurl.cc/asset/javascripts/common/renews.js604800.0 s1012 B
reurl.cc/asset/javascripts/common/ga.js604800.0 s888 B
reurl.cc/asset/javascripts/common/pixel.js604800.0 s792 B
reurl.cc/asset/javascripts/common/ga4.js604800.0 s464 B
c.holmesmind.com/cm?tc=getIn&0.0 ms41 B
/tr/?id=1675200226052423&ev=PageView&dl=https%3A%2F%2Freu...0.0 ms19 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s0 B
cdn.holmesmind.com/js/js-md5.js0.0 ms0 B
sb.scorecardresearch.com/internal-cs/default/beacon-and.js86400.0 s0 B
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s0 B
cdn.holmesmind.com/js/presetfn.js?202311150.0 ms0 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s0 B

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:0.057083] map[node:map[boundingRect:map[bottom:6423 height:6399 left:0 right:412 top:24 width:412] lhId:page-1-BODY nodeLabel:body path:1,HTML,4,BODY selector:body snippet:<body> type:node] score:0.057083 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-0-IMG nodeLabel:API連接示意圖 path:16,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.row > div.col-md-6 > div.api-image > img.img-fluid snippet:<img src="/asset/images/section-api.webp" alt="API連接示意圖" class="img-fluid api-img"> type:node]]] type:subitems]]]
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:0.25552] map[node:map[boundingRect:map[bottom:6423 height:6399 left:0 right:412 top:24 width:412] lhId:page-1-BODY nodeLabel:body path:1,HTML,4,BODY selector:body snippet:<body> type:node] score:0.25552 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:986 height:228 left:15 right:397 top:758 width:382] lhId:page-4-IMG nodeLabel:API連接示意圖 path:1,HTML,4,BODY,5,DIV,16,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.row > div.col-md-6 > div.api-image > img.img-fluid snippet:<img src="/asset/images/section-api.webp" alt="API連接示意圖" class="img-fluid api-img"> type:node]]] type:subitems]]]

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.

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:0.399 source:map[column:31834 line:3 type:source-location url:https://ad-specs.guoshipartners.com/static/js/isip.js urlProvider:network]] map[reflowTime:1.001 source:map[type:text value:[unattributed]]] map[reflowTime:1.775 source:map[column:38031 line:5 type:source-location url:https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.min.js urlProvider:network]] map[reflowTime:2.168 source:map[column:79 line:203 type:source-location url:https://reurl.cc/asset/javascripts/home/main.js?v=21 urlProvider:network]] map[reflowTime:0.343 source:map[column:56 line:213 type:source-location url:https://reurl.cc/asset/javascripts/home/main.js?v=21 urlProvider:network]] map[reflowTime:0.157 source:map[column:1782 line:651 type:source-location url:https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy2021.js urlProvider:network]] map[reflowTime:19.348 source:map[column:278 line:92 type:source-location url:https://www.google-analytics.com/analytics.js urlProvider:network]]]

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: API連接示意圖
path: 16,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div.row > div.col-md-6 > div.api-image > img.img-fluid
snippet: <img src="/asset/images/section-api.webp" alt="API連接示意圖" class="img-fluid api-img">

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.

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.

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.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
/media/9a254c_bd6ab9dc57c349009b5f1eedc6fb236d~mv2.png/v1...1.0 MiB1.0 MiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
/wp-content/uploads/2026/04/SPY是什麼?SPY-ETF-追蹤...120.1 KiB115.6 KiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
img.gbyhn.com.tw/2026/04/1776888454-8dcf7bcd68ebcb237bbb4bf77bfd93bb-840x525.jpg109.5 KiB100.7 KiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
mma.prnasia.com/media2/2963346/TICKET_SOLD_OUT_TC.jpg?p=medium60097.9 KiB89.5 KiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
/wp-content/uploads/2026/04/彰銀推薦信用卡,指...43.4 KiB38.6 KiB
LINE Bot示意圖 div.row > div.col-md-6 > div.linebot-image > img.img-fluid
reurl.cc/asset/images/section-linebot.webp31.0 KiB24.2 KiB
div#collapseSection > div.row > div.col-xl-4 > textarea.meta-title div#collapseSection > div.row > div.col-xl-4 > textarea.meta-title
s0.2mdn.net/simgad/104156794321577412636.2 KiB24.0 KiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
re-news.tw/images/renews-title1.png23.9 KiB18.6 KiB
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
/wp-content/uploads/2025/06/result_MYSTIC_0bf7dcfe-1d44-4...14.6 KiB4.9 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

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: 1.4 s
URLTime Spent
reurl.cc/1.4 s
reurl.cc/main/en0.0 ms

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
body body
0.256
body body
0.057

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 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: 150 ms 23.4 KiB
URLTransfer SizeEst Savings
cdn.jsdelivr.net/npm/bootstrap@4.3.1/dist/css/bootstrap.min.css25.1 KiB23.4 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.

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.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable1.2 s216 ms0.6 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js802 ms606 ms69 ms
reurl.cc/main/en644 ms106 ms4.6 ms
fundingchoicesmessages.google.com/i/128002626?ers=3603 ms562 ms36 ms
ad-specs.guoshipartners.com/static/js/isip.js550 ms351 ms6.8 ms
/pagead/managed/js/adsense/m202604170101/show_ads_impl_fy...433 ms329 ms68 ms
www.googletagmanager.com/gtag/js?id=G-ZDFZCDVDK1425 ms351 ms61 ms
www.googletagmanager.com/gtag/js?id=G-N394QBRGC0349 ms271 ms73 ms
ad-specs.guoshipartners.com/static/js/ad-serv.min.js286 ms255 ms24 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js236 ms125 ms111 ms
reurl.cc/asset/javascripts/home/main.js?v=21219 ms153 ms1.2 ms
connect.facebook.net/en_US/fbevents.js189 ms143 ms46 ms
securepubads.g.doubleclick.net/tag/js/gpt.js159 ms141 ms17 ms
www.google-analytics.com/analytics.js149 ms58 ms6.6 ms
anymind360.com/js/9479/ats.js142 ms93 ms46 ms
pagead2.googlesyndication.com/pagead/js/lidar.js?fcd=true125 ms77 ms43 ms
www.googletagmanager.com/gtag/js?id=G-N394QBRGC0&cx=c&gtm=4e64k0124 ms44 ms79 ms
/signals/config/1675200226052423?v=2.9.303&r=stable&domai...110 ms97 ms12 ms
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js106 ms85 ms20 ms
ep2.adtrafficquality.google/sodar/sodar2.js106 ms100 ms2.8 ms
cdn.holmesmind.com/js/init.js88 ms76 ms2.8 ms
reurl.cc/asset/javascripts/common/renews.js81 ms71 ms0.4 ms
cdn.holmesmind.com/js/presetfn.js?2023111580 ms75 ms3.5 ms
tags.crwdcntrl.net/lt/c/16589/sync.min.js77 ms63 ms6.1 ms
/f/AGSKWxVkGtRwdjZl6P_0xUbsD6S1iep3t5ci7pixKpo0Yeae4kPgNX...69 ms44 ms1.5 ms
oa.openxcdn.net/esp.js63 ms60 ms3.0 ms
sb.scorecardresearch.com/cs/12346468/beacon.js57 ms43 ms7.6 ms
/f/AGSKWxUxPurEWO2VkogHFbAVu5Vlpn_BMwqS9jjW5TFq8UrwplUOZh...53 ms45 ms0.8 ms
t.ssp.hinet.net/tag.js53 ms39 ms3.1 ms
cdn.jsdelivr.net/npm/jquery@3.6.0/dist/jquery.min.js53 ms39 ms11 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.

CategoryTime Spent
Script Evaluation5.0 s
Other1.4 s
Script Parsing & Compilation866 ms
Style & Layout394 ms
Garbage Collection171 ms
Rendering132 ms
Parse HTML & CSS116 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 reasonFailure type
The page has an unload handler in the main frame.Actionable
The page has an unload handler in a sub frame.Actionable

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 41.0 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
LINE Bot示意圖 div.row > div.col-md-6 > div.linebot-image > img.img-fluid
reurl.cc/asset/images/section-linebot.webp
API連接示意圖 div.row > div.col-md-6 > div.api-image > img.img-fluid
reurl.cc/asset/images/section-api.webp
瀏覽器擴充套件示意圖 div.row > div.col-md-6 > div.extension-image > img.img-fluid
reurl.cc/asset/images/section-extention.webp

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

Optimize DOM size
LCP breakdown
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 10 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 1 animated element found
Network Requests
Network Round Trip Times 220 ms
Server Backend Latencies 300 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 220 ms
INP breakdown
70

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.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ShortenURL Imgus Download youtube div.container > div.row > div.col-12 > ul#typeTab

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#ats-slider-wrapper-7 > div#ats-slider-div-7 > button#ats-slider-button-7 div#ats-slider-wrapper-7 > div#ats-slider-div-7 > button#ats-slider-button-7

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.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.col-md-6 > ins.clickforceads > div > iframe#cfadif366 div.col-md-6 > ins.clickforceads > div > iframe#cfadif366
div.col-md-6 > ins.clickforceads > div > iframe#cfadif537 div.col-md-6 > ins.clickforceads > div > iframe#cfadif537
div.container > div.row > div.col-12 > iframe div.container > div.row > div.col-12 > iframe

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.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a
div.card > div.row > div.col-4 > a div.card > div.row > div.col-4 > a

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.

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
Imgus ul#typeTab > li.nav-item > a#image-tab > span.lead
Download youtube ul#typeTab > li.nav-item > a#ytdlp-tab > span.lead
shorten div#url_tab > div.input-group > span.input-group-append > button.btn
View API Documentation div.row > div.col-md-6 > div.api-content > a.btn
Install Chrome Extension div.col-md-6 > div.extension-content > a.btn > span
Add LINE Bot div.col-md-6 > div.linebot-content > a.btn > span
What is a short URL? div.card > div#headingOne > h5.mb-0 > button.btn
What are the benefits of using short URLs? div.card > div#headingTwo > h5.mb-0 > button.btn
How long is a short URL valid? div.card > div#headingThree > h5.mb-0 > button.btn
How can I check the click count of a short URL? div.card > div#headingFour > h5.mb-0 > button.btn
How can I get short URL information without clicking the link? div.card > div#headingFive > h5.mb-0 > button.btn
Why are the preview image and description not showing after using Cloudflare on… div.card > div#headingSix > h5.mb-0 > button.btn
What are the usage limits of the Web API? div.card > div#headingSeven > h5.mb-0 > button.btn
FB page div.contact-form > div.row > div.col-12 > a
admin@reurl.cc div.contact-form > div.row > div.col-12 > a
English div.col-12 > div.row > div.col-8 > a
繁體中文 div.col-12 > div.row > div.col-8 > a
簡體中文 div.col-12 > div.row > div.col-8 > a
Emoji ul > li > a > span.lead
Geo IP ul > li > a > span.lead
Big5/GB Converter ul > li > a > span.lead
QR Code ul > li > a > span.lead
Length Converter ul > li > a > span.lead
Taiwan Company ul > li > a > span.lead
Taiwan Stock ul > li > a > span.lead
Word Counter ul > li > a > span.lead
Date Calculator ul > li > a > span.lead
Lunar Calendar ul > li > a > span.lead
Geo IP ul > li > a > span
Big5/GB Converter ul > li > a > span
QR Code ul > li > a > span
UTM tool ul > li > a > span

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
What is a short URL? div#faqAccordion > div.card > div#headingOne > h5.mb-0

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ShortenURL div.row > div.col-12 > ul#typeTab > li.nav-item
Imgus div.row > div.col-12 > ul#typeTab > li.nav-item
Download youtube div.row > div.col-12 > ul#typeTab > li.nav-item

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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-*]` 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
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
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Deprecated ARIA roles were not used
`[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
`[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
`<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
The document does not use `<meta http-equiv="refresh">`
`<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.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
AttributionReporting

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.

Description
Uncaught TypeError: Cannot read properties of null (reading 'style')
Uncaught TypeError: Cannot read properties of null (reading 'style')
Uses HTTPS
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
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
75

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

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
reurl.cc/main/info/cloudflare/enHere

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.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img
div.row > div.col-4 > a > img.card-img div.row > div.col-4 > a > img.card-img

hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about `hreflang`.

Why this matters

Performance issues directly impact user engagement and conversion rates.

head > link
head > link
head > link

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 are crawlable
robots.txt is valid
Document has a valid `rel=canonical`

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