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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.

56

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
/photoAlbum/page/performance/img/2025/10/24/1761308140066...86400.0 s852.4 KiB
/photoAlbum/page/performance/img/2025/9/26/1758858882953_...86400.0 s184.4 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s168.1 KiB
/photoAlbum/page/performance/img/2026/1/20/1768921136420_...86400.0 s142.4 KiB
/photoAlbum/page/performance/img/2024/1/10/1704875138451_...86400.0 s120.6 KiB
/photoAlbum/page/performance/img/2026/3/10/1773128811973_...86400.0 s115.8 KiB
/photoAlbum/page/performance/img/2026/3/10/1773115562266_...86400.0 s111.4 KiB
/photoAlbum/page/performance/img/2026/2/28/1772278771736_...86400.0 s108.6 KiB
/photoAlbum/page/performance/img/2024/11/13/1731483929302...86400.0 s106.8 KiB
/photoAlbum/page/performance/img/2025/3/24/1742798643627_...86400.0 s104.8 KiB
r.img.cctvpic.com/photoAlbum/templet/js/jquery-1.7.2.min.js600.0 s37.6 KiB
/photoAlbum/page/performance/img/2026/3/10/1773116457150_...86400.0 s85.9 KiB
www.12371.cn/js/swiper.min.js600.0 s37.5 KiB
/photoAlbum/page/performance/img/2026/2/9/1770635256776_7...86400.0 s85.2 KiB
/photoAlbum/page/performance/img/2026/3/10/1773115711359_...86400.0 s84.2 KiB
/photoAlbum/page/performance/img/2025/11/26/1764137216614...86400.0 s82.7 KiB
/photoAlbum/page/performance/img/2023/4/4/1680601101645_6...86400.0 s78.7 KiB
/photoAlbum/page/performance/img/2022/5/26/1653528004529_...86400.0 s77.9 KiB
/photoAlbum/page/performance/img/2022/10/27/1666873534877...86400.0 s77.4 KiB
/photoAlbum/templet/common/DEPA1459837614132641/jquery_we...600.0 s33.4 KiB
p1.img.cctvpic.com/photoAlbum/page/performance/img/2023/9/1/1693536878202_86.jpg86400.0 s73.7 KiB
/photoAlbum/page/performance/img/2025/11/26/1764139990140...86400.0 s62.5 KiB
/photoAlbum/templet/special/PAGE1760705805977850/null_176...86400.0 s62.2 KiB
/photoAlbum/page/performance/img/2026/2/28/1772277814682_...86400.0 s62.0 KiB
/photoAlbum/page/performance/img/2025/11/17/1763349377016...86400.0 s57.8 KiB
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/prototype.js600.0 s24.7 KiB
/photoAlbum/templet/common/DEPA1540451679495312/idangerou...600.0 s24.0 KiB
p4.img.cctvpic.com/photoAlbum/page/performance/img/2026/4/21/1776769903544_9.png86400.0 s54.7 KiB
/photoAlbum/page/performance/img/2026/3/13/1773388925103_...86400.0 s54.6 KiB
/photoAlbum/page/performance/img/2023/9/1/1693546735839_4...86400.0 s50.8 KiB
/photoAlbum/page/performance/img/2022/11/18/1668756870880...86400.0 s47.7 KiB
/photoAlbum/page/performance/img/2021/6/22/1624366542871_...86400.0 s42.8 KiB
/photoAlbum/page/performance/img/2023/11/28/1701165183863...86400.0 s38.7 KiB
p1.img.cctvpic.com/photoAlbum/templet/common/DEPA1540451679495312/systylenew.css600.0 s16.4 KiB
/photoAlbum/page/performance/img/2019/6/26/1561514081549_...86400.0 s14.1 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw985...86400.0 s14.0 KiB
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_lo...86400.0 s12.3 KiB
/photoAlbum/page/performance/img/2019/7/23/1563868113041_...86400.0 s11.9 KiB
js.data.cctv.com/clickhotspot.min.js600.0 s5.1 KiB
p4.img.cctvpic.com/photoAlbum/templet/common/DEPA1505181804180579/ewm.png86400.0 s11.2 KiB
/photoAlbum/page/performance/img/2021/6/21/1624267942131_...86400.0 s10.8 KiB
/photoAlbum/page/performance/img/2019/7/23/1563868078257_...86400.0 s10.7 KiB
/photoAlbum/page/performance/img/2021/6/21/1624266298159_...86400.0 s10.7 KiB
/photoAlbum/page/performance/img/2021/6/21/1624271726384_...86400.0 s10.4 KiB
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/swiper.min.css600.0 s4.2 KiB
/photoAlbum/page/performance/img/2025/4/7/1744007944306_1...86400.0 s9.3 KiB
/photoAlbum/page/performance/img/2022/6/7/1654597415451_3...86400.0 s9.0 KiB
/photoAlbum/page/performance/img/2019/6/25/1561429899318_...86400.0 s8.8 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s8.2 KiB
/photoAlbum/page/performance/img/2022/6/7/1654597402310_5...86400.0 s7.4 KiB
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_yh...86400.0 s7.1 KiB
/photoAlbum/page/performance/img/2022/6/7/1654597409254_2...86400.0 s6.9 KiB
/photoAlbum/page/performance/img/2018/9/29/1538208739684_...86400.0 s6.8 KiB
/photoAlbum/templet/common/DEPA1505181804180579/yd_home_u...86400.0 s6.5 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675978934_...86400.0 s6.5 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s6.3 KiB
/photoAlbum/page/performance/img/2023/9/1/1693557588925_2...86400.0 s6.3 KiB
/photoAlbum/page/performance/img/2018/9/29/1538208745795_...86400.0 s6.3 KiB
/photoAlbum/page/performance/img/2018/9/29/1538208884126_...86400.0 s6.2 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675963258_...86400.0 s6.0 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675879997_...86400.0 s5.6 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw817...86400.0 s5.5 KiB
/photoAlbum/page/performance/img/2023/9/1/1693558171610_9...86400.0 s5.5 KiB
/photoAlbum/page/performance/img/2021/6/21/1624266207299_...86400.0 s5.4 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s5.2 KiB
/photoAlbum/page/performance/img/2025/11/26/1764125283804...86400.0 s4.8 KiB
www.12371.cn/js/jquery.DB_rotateRollingBanner.min.js?hc600.0 s2.1 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675934617_...86400.0 s4.6 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s4.5 KiB
/photoAlbum/page/performance/img/2026/2/25/1772010034912_...86400.0 s4.2 KiB
r.img.cctvpic.com/dystudy/style/style.css?0afadcd5c88493160a00e3310cc0eb82600.0 s1.6 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264104679_...86400.0 s3.4 KiB
/photoAlbum/page/performance/img/2020/3/14/1584150333780_...86400.0 s3.4 KiB
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_yh...86400.0 s3.3 KiB
/photoAlbum/page/performance/img/2019/9/24/1569288405649_...86400.0 s3.2 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264128383_...86400.0 s3.1 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675918645_...86400.0 s3.0 KiB
/photoAlbum/page/performance/img/2024/8/23/1724418349065_...86400.0 s2.9 KiB
/photoAlbum/page/performance/img/2024/8/23/1724418379387_...86400.0 s2.9 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675873615_...86400.0 s2.8 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264117991_...86400.0 s2.7 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264055934_...86400.0 s2.5 KiB
/photoAlbum/page/performance/img/2019/6/26/1561535195418_...86400.0 s2.5 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264067904_...86400.0 s2.5 KiB
/photoAlbum/page/performance/img/2019/7/30/1564464329809_...86400.0 s2.4 KiB
/photoAlbum/page/performance/img/2019/9/25/1569390203356_...86400.0 s2.4 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264079502_...86400.0 s2.3 KiB
/photoAlbum/page/performance/img/2019/9/28/1569675985100_...86400.0 s2.2 KiB
/photoAlbum/page/performance/img/2019/7/30/1564464539879_...86400.0 s2.1 KiB
/photoAlbum/page/performance/img/2019/6/27/1561611181034_...86400.0 s2.1 KiB
/photoAlbum/page/performance/img/2019/7/30/1564464728960_...86400.0 s2.1 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s2.1 KiB
/photoAlbum/page/performance/img/2021/6/21/1624264092145_...86400.0 s2.1 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s2.1 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s2.1 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s2.0 KiB
/photoAlbum/page/performance/img/2021/6/21/1624263955642_...86400.0 s2.0 KiB
/photoAlbum/page/performance/img/2019/6/27/1561611168304_...86400.0 s1.9 KiB
/photoAlbum/page/performance/img/2026/3/13/1773387426891_...86400.0 s1.9 KiB
/photoAlbum/page/performance/img/2019/6/27/1561603382731_...86400.0 s1.8 KiB
/photoAlbum/page/performance/img/2020/3/14/1584150050275_...86400.0 s1.8 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s1.8 KiB
/photoAlbum/page/performance/img/2026/2/25/1772009905539_...86400.0 s1.7 KiB
/photoAlbum/page/performance/img/2025/4/9/1744181637772_9...86400.0 s1.7 KiB
/photoAlbum/page/performance/img/2025/4/9/1744181697650_4...86400.0 s1.6 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...86400.0 s1.6 KiB
/photoAlbum/page/performance/img/2019/9/25/1569390154547_...86400.0 s1.5 KiB
/photoAlbum/page/performance/img/2019/6/27/1561603316527_...86400.0 s1.4 KiB

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:5.775 source:map[column:19786 line:2 type:source-location url:https://p5.img.cctvpic.com/photoAlbum/templet/common/DEPA1459837614132641/jquery_weixin.min.js urlProvider:network]] map[reflowTime:25.619 source:map[column:19081 line:2 type:source-location url:https://p5.img.cctvpic.com/photoAlbum/templet/common/DEPA1459837614132641/jquery_weixin.min.js urlProvider:network]] map[reflowTime:0.278 source:map[column:19164 line:2 type:source-location url:https://p5.img.cctvpic.com/photoAlbum/templet/common/DEPA1459837614132641/jquery_weixin.min.js urlProvider:network]]]

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.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/10/24/1761308140066...851.7 KiB794.9 KiB
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/9/26/1758858882953_...184.0 KiB127.2 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/1/20/1768921136420_...142.2 KiB126.8 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2024/1/10/1704875138451_...120.3 KiB105.9 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2026/2/28/1772278771736_...108.2 KiB93.8 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2024/11/13/1731483929302...106.6 KiB92.2 KiB
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2025/3/24/1742798643627_...104.0 KiB88.6 KiB
div.dyw638_img_190305 > div.yd_img_190305 > a > img div.dyw638_img_190305 > div.yd_img_190305 > a > img
/photoAlbum/page/performance/img/2026/3/10/1773115562266_...110.6 KiB88.0 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/3/10/1773116457150_...85.5 KiB70.1 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/2/9/1770635256776_7...84.8 KiB69.4 KiB
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2026/3/10/1773115711359_...83.4 KiB68.0 KiB
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2025/11/26/1764137216614...82.6 KiB67.1 KiB
ul > li.cur > a > img ul > li.cur > a > img
p1.img.cctvpic.com/photoAlbum/page/performance/img/2023/9/1/1693536878202_86.jpg72.7 KiB66.9 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2023/4/4/1680601101645_6...77.7 KiB62.3 KiB
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2022/5/26/1653528004529_...77.6 KiB62.2 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2022/10/27/1666873534877...76.3 KiB61.9 KiB
ul > li.cur > a > img ul > li.cur > a > img
/photoAlbum/page/performance/img/2026/2/28/1772277814682_...61.9 KiB56.0 KiB
ul > li > a > img ul > li > a > img
p4.img.cctvpic.com/photoAlbum/page/performance/img/2026/4/21/1776769903544_9.png54.6 KiB48.7 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2025/11/26/1764139990140...62.4 KiB48.0 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2022/11/18/1668756870880...47.4 KiB41.6 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2026/3/13/1773388925103_...53.8 KiB39.4 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2023/9/1/1693546735839_4...49.9 KiB35.5 KiB
div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img
/photoAlbum/page/performance/img/2021/6/22/1624366542871_...41.8 KiB28.1 KiB
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2023/11/28/1701165183863...38.4 KiB23.9 KiB
div.yd_dyw817_top > div.yd_nav > div.left > a div.yd_dyw817_top > div.yd_nav > div.left > a
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_lo...11.2 KiB8.7 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2021/6/21/1624266298159_...9.8 KiB8.3 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675978934_...6.1 KiB5.3 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675963258_...5.5 KiB4.8 KiB
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675879997_...5.2 KiB4.5 KiB
div.yd_nav > div.right > a.find > img div.yd_nav > div.right > a.find > img
/photoAlbum/page/performance/img/2018/9/29/1538208739684_...6.5 KiB4.4 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-30-IMG
nodeLabel: div.swiper-wrapper > div.swiper-slide > a > img
path: 1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,14,DIV,0,DIV,0,DIV,0,DIV,0,DIV,6,DIV,0,DIV,0,DIV,1,DIV,0,A,0,IMG
selector: div.swiper-wrapper > div.swiper-slide > a > img
snippet: <img src="//p3.img.cctvpic.com/photoAlbum/page/performance/img/2025/10/24/1761308140…">

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
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/swiper.min.csshttp/1.1
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/prototype.jshttp/1.1
p1.img.cctvpic.com/photoAlbum/templet/common/DEPA1540451679495312/systylenew.csshttp/1.1
/photoAlbum/page/performance/img/2018/9/29/1538208884126_...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_yh...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/page/performance/img/2019/6/26/1561514081549_...http/1.1
/photoAlbum/page/performance/img/2019/9/24/1569288405649_...http/1.1
/photoAlbum/page/performance/img/2025/11/17/1763349377016...http/1.1
/photoAlbum/page/performance/img/2019/6/26/1561535195418_...http/1.1
/photoAlbum/page/performance/img/2026/3/10/1773128811973_...http/1.1
/photoAlbum/page/performance/img/2026/3/10/1773115562266_...http/1.1
/photoAlbum/templet/common/DEPA1540451679495312/idangerou...http/1.1
/photoAlbum/page/performance/img/2022/6/7/1654597415451_3...http/1.1
/photoAlbum/page/performance/img/2026/3/10/1773115711359_...http/1.1
/photoAlbum/page/performance/img/2025/3/24/1742798643627_...http/1.1
/photoAlbum/page/performance/img/2023/4/4/1680601101645_6...http/1.1
/photoAlbum/page/performance/img/2021/6/22/1624366542871_...http/1.1
/photoAlbum/page/performance/img/2025/11/26/1764125283804...http/1.1
/photoAlbum/page/performance/img/2025/4/7/1744007944306_1...http/1.1
/photoAlbum/page/performance/img/2019/7/30/1564464728960_...http/1.1
/photoAlbum/page/performance/img/2019/9/25/1569390203356_...http/1.1
/photoAlbum/page/performance/img/2021/6/21/1624266298159_...http/1.1
/photoAlbum/page/performance/img/2019/9/28/1569675879997_...http/1.1
p1.img.cctvpic.com/photoAlbum/page/performance/img/2023/9/1/1693536878202_86.jpghttp/1.1
/photoAlbum/page/performance/img/2021/6/21/1624271726384_...http/1.1
/photoAlbum/page/performance/img/2019/6/27/1561611168304_...http/1.1
/photoAlbum/page/performance/img/2019/9/28/1569675978934_...http/1.1
/photoAlbum/page/performance/img/2019/7/23/1563868078257_...http/1.1
/photoAlbum/page/performance/img/2019/7/30/1564464329809_...http/1.1
/photoAlbum/page/performance/img/2019/9/28/1569675934617_...http/1.1
/photoAlbum/page/performance/img/2019/9/28/1569675963258_...http/1.1
/photoAlbum/page/performance/img/2021/6/21/1624264128383_...http/1.1
/photoAlbum/page/performance/img/2021/6/21/1624264117991_...http/1.1
/photoAlbum/page/performance/img/2021/6/21/1624264104679_...http/1.1
/photoAlbum/page/performance/img/2021/6/21/1624264092145_...http/1.1
/photoAlbum/page/performance/img/2022/10/27/1666873534877...http/1.1
/photoAlbum/page/performance/img/2023/9/1/1693546735839_4...http/1.1
/photoAlbum/page/performance/img/2026/3/13/1773388925103_...http/1.1
/photoAlbum/templet/special/PAGE1760705805977850/null_176...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_yh...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/dyw817_lo...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw985...http/1.1
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw817...http/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
/photoAlbum/templet/common/DEPA1459837614132641/jquery_we...33.4 KiB1.5 s
www.12371.cn/js/jquery.DB_rotateRollingBanner.min.js?hc2.1 KiB387 ms
r.img.cctvpic.com/dystudy/style/style.css?0afadcd5c88493160a00e3310cc0eb821.6 KiB799 ms
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/swiper.min.css4.2 KiB846 ms
r.img.cctvpic.com/photoAlbum/templet/js/jquery-1.7.2.min.js37.6 KiB1.5 s
res.wx.qq.com/open/js/jweixin-1.2.0.js11.6 KiB1.1 s
p2.img.cctvpic.com/photoAlbum/templet/common/DEPA1457510958309619/prototype.js24.7 KiB1.4 s

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: 2.0 s
URLTime Spent
12371.cn/1.4 s
www.12371.cn/630 ms
www.12371.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

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: 160 ms 9.6 KiB
URLTransfer SizeEst Savings
/photoAlbum/templet/common/DEPA1540451679495312/idangerou...23.1 KiB9.6 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: 160 ms 11.9 KiB
URLTransfer SizeEst Savings
p1.img.cctvpic.com/photoAlbum/templet/common/DEPA1540451679495312/systylenew.css15.5 KiB11.9 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: 310 ms 28.6 KiB
URLTransfer SizeEst Savings
r.img.cctvpic.com/photoAlbum/templet/js/jquery-1.7.2.min.js36.9 KiB28.6 KiB

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
Other911 ms
Style & Layout378 ms
Script Evaluation319 ms
Rendering187 ms
Parse HTML & CSS108 ms
Script Parsing & Compilation82 ms
Garbage Collection34 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 did not finish loading before navigating away.Not actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/photoAlbum/page/performance/img/2025/10/24/1761308140066...852.4 KiB
/photoAlbum/page/performance/img/2025/9/26/1758858882953_...184.4 KiB
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...168.1 KiB
/photoAlbum/page/performance/img/2026/1/20/1768921136420_...142.4 KiB
/photoAlbum/page/performance/img/2024/1/10/1704875138451_...120.6 KiB
/photoAlbum/page/performance/img/2026/3/10/1773128811973_...115.8 KiB
/photoAlbum/page/performance/img/2026/3/10/1773115562266_...111.4 KiB
/photoAlbum/page/performance/img/2026/2/28/1772278771736_...108.6 KiB
/photoAlbum/page/performance/img/2024/11/13/1731483929302...106.8 KiB
/photoAlbum/page/performance/img/2025/3/24/1742798643627_...104.8 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.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/9/26/1758858882953_...
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/10/24/1761308140066...
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/9/26/1758858882953_...
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
/photoAlbum/page/performance/img/2025/10/24/1761308140066...
div.dyw638_img_190305 > div.yd_img_190305 > a > img div.dyw638_img_190305 > div.yd_img_190305 > a > img
/photoAlbum/page/performance/img/2026/3/10/1773115562266_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/3/10/1773116457150_...
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2026/3/10/1773115711359_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/2/9/1770635256776_7...
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2025/11/26/1764137216614...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/1/20/1768921136420_...
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2025/3/24/1742798643627_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2023/4/4/1680601101645_6...
ul > li.last > a > img ul > li.last > a > img
/photoAlbum/page/performance/img/2022/5/26/1653528004529_...
div.swiper-slide > div.yd_dyw895_wzlm > a > img div.swiper-slide > div.yd_dyw895_wzlm > a > img
/photoAlbum/templet/common/DEPA1538036514929349/yd_dyw895...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2026/2/28/1772278771736_...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2025/11/26/1764139990140...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2022/10/27/1666873534877...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2024/1/10/1704875138451_...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2024/11/13/1731483929302...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2023/11/28/1701165183863...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2023/9/1/1693546735839_4...
ul.img > li > a > img ul.img > li > a > img
/photoAlbum/page/performance/img/2026/3/13/1773388925103_...
div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img
/photoAlbum/page/performance/img/2021/6/22/1624366542871_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675873615_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675879997_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675918645_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675985100_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2026/2/25/1772010034912_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675978934_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675934617_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2020/3/14/1584150333780_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2019/9/28/1569675963258_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2022/11/18/1668756870880...
ul > li.cur > a > img ul > li.cur > a > img
p1.img.cctvpic.com/photoAlbum/page/performance/img/2023/9/1/1693536878202_86.jpg
ul > li > a > img ul > li > a > img
p4.img.cctvpic.com/photoAlbum/page/performance/img/2026/4/21/1776769903544_9.png
ul > li.cur > a > img ul > li.cur > a > img
/photoAlbum/page/performance/img/2026/2/28/1772277814682_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2021/6/21/1624266298159_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2024/8/23/1724418379387_...
ul > li > a > img ul > li > a > img
/photoAlbum/page/performance/img/2025/4/9/1744181637772_9...

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

●Max Potential First Input Delay 90 ms
●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●JavaScript execution time 0.3 s
●Avoid long main-thread tasks 2 long tasks found
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 150 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 250 ms
●Avoid large layout shifts 8 layout shifts found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
82

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.

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.yd_nav > div.left > a > img div.yd_nav > div.left > a > img
div.yd_nav > div.right > a.cont > img div.yd_nav > div.right > a.cont > img
div.yd_nav > div.right > a.find > img div.yd_nav > div.right > a.find > img
div.right > a#yhdl > a > img div.right > a#yhdl > a > img
div.swiper-slide > div.yd_dyw895_wzlm > a > img div.swiper-slide > div.yd_dyw895_wzlm > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
div.dyw638_img_190305 > div.yd_img_190305 > a > img div.dyw638_img_190305 > div.yd_img_190305 > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.marR0 > a > img ul > li.marR0 > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img

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.yd_dyw817_top > div.yd_nav > div.left > a div.yd_dyw817_top > div.yd_nav > div.left > a
div.yd_dyw817_top > div.yd_nav > div.right > a.cont div.yd_dyw817_top > div.yd_nav > div.right > a.cont
div.yd_dyw817_top > div.yd_nav > div.right > a.find div.yd_dyw817_top > div.yd_nav > div.right > a.find
div.yd_dyw817_top > div.yd_nav > div.right > a#yhdl div.yd_dyw817_top > div.yd_nav > div.right > a#yhdl
div.yd_nav > div.right > a#yhdl > a div.yd_nav > div.right > a#yhdl > a
div.swiper-wrapper > div.swiper-slide > div.yd_dyw895_wzlm > a div.swiper-wrapper > div.swiper-slide > div.yd_dyw895_wzlm > a
div.yd_dyw895_three > ul > li > a div.yd_dyw895_three > ul > li > a
div.yd_dyw895_three > ul > li > a div.yd_dyw895_three > ul > li > a
div.yd_dyw895_three > ul > li > a div.yd_dyw895_three > ul > li > a
div.yd_dyw895_three > ul > li > a div.yd_dyw895_three > ul > li > a
div.ELMT1742955823814899 > div.dyw638_img_190305 > div.yd_img_190305 > a div.ELMT1742955823814899 > div.dyw638_img_190305 > div.yd_img_190305 > a
div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a
div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a
div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a
div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a div.swiper-container01 > div.swiper-wrapper > div.swiper-slide > a
div.yd_dyw895_imgList > ul > li > a div.yd_dyw895_imgList > ul > li > a
div.yd_dyw895_imgList > ul > li > a div.yd_dyw895_imgList > ul > li > a
div.yd_dyw895_imgList > ul > li.marR0 > a div.yd_dyw895_imgList > ul > li.marR0 > a
div.dyw820_text_List > ul > li > a div.dyw820_text_List > ul > li > a
div.dyw820_text_List > ul > li > a div.dyw820_text_List > ul > li > a
政绩观 div.by3_bottom_img > ul > li > a
四中全会培训课程 div.by3_bottom_img > ul > li.last > a
二十届四中全会 div.by3_bottom_img > ul > li > a
四中全会学习资料 div.by3_bottom_img > ul > li.last > a
《榜样10》专题节目 div.by3_bottom_img > ul > li > a
全国党员教育培训工作规划 div.by3_bottom_img > ul > li.last > a
党的知识学习词典 div.by3_bottom_img > ul > li > a
基层一线党旗飘扬 div.by3_bottom_img > ul > li.last > a
div.column_wrapper_1200 > div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd div.column_wrapper_1200 > div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd
党课开讲啦 div.dyw1005_gmjl > ul > li > a
学习身边榜样 div.dyw1005_gmjl > ul > li.cur > a
十八届 div.dyw1005_gmjl > ul > li > a
培训动态 div.dyw1005_gmjl > ul > li.cur > a
八项规定 div.dyw1005_list > ul.img > li > a
学贯二十届三中全会精神 div.dyw1005_list > ul.img > li > a
精神谱系 div.dyw1005_list > ul.img > li > a
党员教育管理工作条例 div.dyw1005_list > ul.img > li > a
党纪处分条例 div.dyw1005_list > ul.img > li > a
党组织活动常用音乐 div.dyw1005_list > ul.img > li > a
榜样专题节目 div.dyw1005_list > ul.img > li > a
时代楷模 div.dyw1005_list > ul.img > li > 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.

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-*]` 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
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Deprecated ARIA roles were not used
●The page contains a heading, skip link, or landmark region
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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 with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○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 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.
○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.
○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.
81

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.12371.cn/Allowed
●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
●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
设为首页 div.L_home > ul > li.pc_home > a
div.yd_dyw817_top > div.yd_nav > div.right > a.cont div.yd_dyw817_top > div.yd_nav > div.right > a.cont
div.yd_dyw817_top > div.yd_nav > div.right > a.find div.yd_dyw817_top > div.yd_nav > div.right > a.find
div.yd_dyw817_top > div.yd_nav > div.right > a#yhdl div.yd_dyw817_top > div.yd_nav > div.right > a#yhdl
div.yd_dyw817_top > div.yd_nav > div.right > a#yhdlh div.yd_dyw817_top > div.yd_nav > div.right > a#yhdlh
div.yd_home_searchS > div.search_center > form#sysearch_from > a.sear_right div.yd_home_searchS > div.search_center > form#sysearch_from > a.sear_right
热搜 div.dyw820_top_contant_tjw > div.dyw920_home_Right_Search > div.dyw920_bottom_search > a

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.yd_nav > div.left > a > img div.yd_nav > div.left > a > img
div.yd_nav > div.right > a.cont > img div.yd_nav > div.right > a.cont > img
div.yd_nav > div.right > a.find > img div.yd_nav > div.right > a.find > img
div.right > a#yhdl > a > img div.right > a#yhdl > a > img
div.swiper-slide > div.yd_dyw895_wzlm > a > img div.swiper-slide > div.yd_dyw895_wzlm > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
div.dyw638_img_190305 > div.yd_img_190305 > a > img div.dyw638_img_190305 > div.yd_img_190305 > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
div.swiper-wrapper > div.swiper-slide > a > img div.swiper-wrapper > div.swiper-slide > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.marR0 > a > img ul > li.marR0 > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
ul > li > a > img ul > li > a > img
ul > li.last > a > img ul > li.last > a > img
div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img div#SUBD1624241295899527 > div.dyw1005_yddh > a.yd > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul > li > a > img ul > li > a > img
ul > li > a > img ul > li > a > img
ul > li.cur > a > img ul > li.cur > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img
ul.img > li > a > img ul.img > li > a > img

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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