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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.

26

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
/builds/core/50c9786/es2018/js/adthrive.min.js?deployment...3600.0 s376.2 KiB
/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca60.0 s109.1 KiB
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js86400.0 s177.1 KiB
c.aps.amazon-adsystem.com/apstag.js3600.0 s78.4 KiB
/69e75073-3763-483e-a64c-0d281bfd9225/launchpad-liveramp.js0.0 ms59.5 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
btloader.com/tag?o=5698917485248512&domain=dpreview.com&upapi=true300.0 s30.6 KiB
cdn.id5-sync.com/api/1.0/id5PrebidModule.js3600.0 s29.4 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
s.skimresources.com/js/31959X1726082.skimlinks.js3600.0 s20.0 KiB
csync.smartadserver.com/rtb/csync/CookieSync.min.js3600.0 s16.4 KiB
tpc.googlesyndication.com/sodar/HdsydzJK.js3000.0 s15.1 KiB
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js3600.0 s15.4 KiB
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s14.0 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
experiments.parsely.com/vip-experiments.js?apiKey=dpreview.com30.0 s8.9 KiB
csync.smartadserver.com/rtb/csync/TemplatePool.min.js3600.0 s7.3 KiB
eus.rubiconproject.com/usync.js57236.0 s11.5 KiB
pghub.io/js/pandg-sdk.js3600.0 s5.4 KiB
static.trueanthem.com/scripts/ta.c34341.js86400.0 s10.7 KiB
ads.adthrive.com/builds/customizations/65ea5069fa5c4c7032386304.js0.0 ms3.6 KiB
a.amxrtb.com/js/cframe.js#gdpr=0&gdpr_consent=&cc=SG14400.0 s5.1 KiB
sb.scorecardresearch.com/internal-cs/6035453/beacon-and.js86400.0 s7.8 KiB
ced-ns.sascdn.com/diff/js/modules/cmp.js86400.0 s7.3 KiB
config.aps.amazon-adsystem.com/configs/4fbba76f-7987-4fa2-9733-c27eb3a2170b3600.0 s2.3 KiB
/mcjs-connected/js/users/6c818d5d6d006adf8eed5cf6b/d64642...164.0 s1.5 KiB
ads.pubmatic.com/AdServer/js/publisher-esp.js111519.0 s3.5 KiB
ads.adthrive.com/sites/65ea5069fa5c4c7032386304/ads.min.css3600.0 s1.2 KiB
/pagead/js/r20260420/r20110914/client/qs_click_protection...1209600.0 s8.8 KiB
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
/rp.gif?ts=1776809008100&id=a2_hkk2vei3os55&event=PageVis...0.0 ms666 B
/cs/cookiesync/onetag?a=3&channeluid=55CJACO2B5R-9odj3NSp...0.0 ms646 B
s.seedtag.com/cs/cookiesync/opera?channeluid=OPUa603204475df4ccdbbb95ff3114789880.0 ms626 B
static.trueanthem.com/scripts/ta.js86400.0 s1.3 KiB
/cookie?redirect_url=https%3A%2F%2Fs.seedtag.com%2Fcs%2Fc...0.0 ms521 B
rules.quantcount.com/rules-p-vdRXAenvduNLG.js3600.0 s642 B
/usersync/seedtag?cb=https%3A%2F%2Fs.seedtag.com%2Fcs%2Fc...0.0 ms405 B
s.seedtag.com/cs/st/s?source=PrebidServer0.0 ms372 B
/pagead/js/r20260420/r20110914/elements/html/omrhp_fy2021.js1209600.0 s3.3 KiB
p.skimresources.com/px.gif?ch=1&rn=10.2060515620321370.0 ms267 B
s.seedtag.com/cs/cookiesync/sovrn?channeluid=0.0 ms266 B
/track/cmb/appnexus?ttd=1&anid=4214096929068688567&ttd_td...0.0 ms254 B
/track/cmb/generic?ttd_pid=tapad&ttd_tpi=1&ttd_puid=4ad44...0.0 ms254 B
/track/cmb/generic?ttd_pid=pxpinp0&ttd_tpi=1&gdpr=0&gdpr_...0.0 ms254 B
/track/cmb/generic?ttd_pid=5jrh0rv&ttd_tpi=1&gdpr=0&gdpr_...0.0 ms254 B
match.adsrvr.org/track/cmb/generic?ttd_pid=rwuq9ny&ttd_tpi=10.0 ms254 B
/pagead/js/r20260420/r20110914/client/window_focus_fy2021.js1209600.0 s1.3 KiB
creativecdn.com/cm-notify?pi=seedtag&tc=10.0 ms124 B
p.skimresources.com/px.gif?ch=2&rn=10.2060515620321370.0 ms93 B
/AdServer/ImgSync?p=159706&gdpr=1&gdpr_consent=&us_privac...0.0 ms69 B
/api/sync?callerId=5&gdpr=1&gdpr_consent=&us_privacy=&red...0.0 ms45 B
/getuid?gdpr_consent=&us_privacy=1YNY&nwid=3050&url=https...0.0 ms44 B
match.deepintent.com/usersync/1540.0 ms44 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
eus.rubiconproject.com/usync.js57236.0 s0 B
ep2.adtrafficquality.google/sodar/VFc2VJAc.js3000.0 s0 B
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s0 B
/pagead/js/r20260420/r20110914/client/qs_click_protection...1209600.0 s0 B
/pagead/js/r20260420/r20110914/elements/html/omrhp_fy2021.js1209600.0 s0 B
/pagead/js/r20260420/r20110914/client/window_focus_fy2021.js1209600.0 s0 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.

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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:1.289 source:map[column:439955 line:2 type:source-location url:https://form-assets.mailchimp.com/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:1.154 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]] map[reflowTime:1.362 source:map[type:text value:[unattributed]]] map[reflowTime:6.543 source:map[column:241855 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 urlProvider:network]] map[reflowTime:2.36 source:map[column:102033 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 urlProvider:network]] map[reflowTime:4.05 source:map[column:143046 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 urlProvider:network]] map[reflowTime:0.265 source:map[column:223 line:733 type:source-location url:https://imasdk.googleapis.com/js/sdkloader/ima3.js urlProvider:network]] map[reflowTime:0.253 source:map[column:3790 line:2 type:source-location url:https://3.img-dpreview.com/resources/scripts/libraries/lazysizes.min.js?v=5791 urlProvider:network]] map[reflowTime:1.289 source:map[column:440082 line:1 type:source-location url:https://form-assets.mailchimp.com/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca urlProvider:network]] map[reflowTime:0.228 source:map[column:30744 line:7 type:source-location url:https://btloader.com/tag?o=5698917485248512&upapi=true&domain=dpreview.com urlProvider:network]] map[reflowTime:0.507 source:map[column:454855 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 urlProvider:network]] map[reflowTime:0.365 source:map[column:455227 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 urlProvider:network]] map[reflowTime:0.193 source:map[column:61660 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 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.newsList > div.newsDay > div#adSlot_mobile-footer_wrapper > ::before div.newsList > div.newsDay > div#adSlot_mobile-footer_wrapper > ::before
s0.2mdn.net/simgad/275166901269496052574.1 KiB61.9 KiB
Why omitting video won't make your camera cheaper body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C0x763S3840x2117T800x441~feature_blocks/f2f512bb...91.8 KiB45.1 KiB
Viltrox's new 35 and 55 F1.8 lenses try out a new kind of optical design body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C0x154S3840x2117T800x441~feature_blocks/25e142d4...90.4 KiB43.8 KiB
body.light > header > a > span#topLogo body.light > header > a > span#topLogo
1.img-dpreview.com/resources/images/mobile/logo-dpr@2x.png33.7 KiB28.5 KiB
dpreview.com: Digital Photography Review footer > div.footerBottom > div.logo > img.logo-dpr
s0.2mdn.net/simgad/1530411038411285858223.6 KiB21.2 KiB
70 years behind the lens: Stephen Felce’s masterclass in photography craft div.newsItem > div.leadingImage > a > img
/files/p/E~C275x0S2174x2174T200x200~articles/4994008709/E...24.8 KiB19.9 KiB
What are your favorite photography-related shows or movies? div.newsItem > div.leadingImage > a > img
/files/p/E~C25x73S326x326T200x200~articles/2946651031/kod...24.7 KiB19.7 KiB
Apple's next CEO has spent years building the cameras he's about to inherit body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C95x273S1900x1048T800x441~feature_blocks/178c77c...65.4 KiB18.8 KiB
Your thoughts on AI use in the DPReview community forums div.newsItem > div.leadingImage > a > img
/files/p/E~C1000x0S4000x4000T200x200~articles/4272315475/...20.9 KiB15.9 KiB
Enter to win a $1,000 MPB gift card div.newsItem > div.leadingImage > a > img
/files/p/E~C99x0S393x393T200x200~articles/2182743704/MPB-...19.0 KiB14.0 KiB
DJI's new pocket camera is a sneaky upgrade in value div.newsItem > div.leadingImage > a > img
/files/p/E~C480x0S2880x2880T200x200~articles/8980684576/a...16.6 KiB11.6 KiB
Why omitting video won't make your camera cheaper div.newsItem > div.leadingImage > a > img
/files/p/E~C336x0S2880x2880T200x200~articles/2487492530/N...16.4 KiB11.4 KiB
Why Kazuto Yamaki is quietly turning Sigma into a rice farmer div.newsItem > div.leadingImage > a > img
/files/p/E~C335x0S3017x3017T200x200~articles/0483313199/p...15.9 KiB10.9 KiB
Nik Collection 9 lets you mask like the Lone Ranger (no sidekick required) div.newsItem > div.leadingImage > a > img
/files/p/E~C480x0S2880x2880T200x200~articles/6250392506/a...15.7 KiB10.7 KiB
Latest, $400 L-mount lens pays homage to a Micro Four Thirds favorite div.newsItem > div.leadingImage > a > img
/files/p/E~C640x0S2560x2560T200x200~articles/5194248079/P...15.7 KiB10.7 KiB
Leica's latest limited edition camera has a store to go with it div.newsItem > div.leadingImage > a > img
/files/p/E~C402x0S1365x1365T200x200~articles/0655459442/l...15.4 KiB10.4 KiB
This groundbreaking Chinese lens comes from an unexpected company div.newsItem > div.leadingImage > a > img
/files/p/E~C612x0S2560x2560T200x200~articles/8832236897/t...14.7 KiB9.7 KiB
Is L-mount quietly taking off as the go-to universal mount? div.newsItem > div.leadingImage > a > img
/files/p/E~C762x0S2019x2019T200x200~articles/2675477851/L...14.2 KiB9.2 KiB
86% div.reviewsList > div.review > div.reviewInfo > div.reviewScore
1.img-dpreview.com/resources/images/award-silver.png9.8 KiB9.0 KiB
91% div.reviewsList > div.review > div.reviewInfo > div.reviewScore
1.img-dpreview.com/resources/images/award-gold.png9.4 KiB8.7 KiB
Sony Creators' App tested: how well does it actually work? div.newsItem > div.leadingImage > a > img
/files/p/E~C640x0S2560x2560T200x200~articles/5685365997/a...13.6 KiB8.6 KiB
Why Canon's cutting-edge sensor tech may not cascade down to photographers div.newsItem > div.leadingImage > a > img
/files/p/E~C397x0S2800x2800T200x200~articles/6609524439/C...13.3 KiB8.3 KiB
Apple's next CEO has spent years building the cameras he's about to inherit div.newsItem > div.leadingImage > a > img
/files/p/E~C338x0S1321x1321T200x200~articles/6793942138/t...12.9 KiB7.9 KiB
Viltrox is trying out a new kind of optical design div.newsItem > div.leadingImage > a > img
/files/p/E~C577x0S2687x2687T200x200~articles/0055705931/v...11.5 KiB6.5 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-1-IMG
nodeLabel: Why omitting video won't make your camera cheaper
path: 1,HTML,1,BODY,8,DIV,0,DIV,0,IMG
selector: body.light > div#featureMarquee > div.tappableBlock > img
snippet: <img src="https://3.img-dpreview.com/files/p/C0x763S3840x2117T800x441~feature_blocks…" alt="Why omitting video won't make your camera cheaper">

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
experiments.parsely.com/vip-experiments.js?apiKey=dpreview.com8.9 KiB904 ms
2.img-dpreview.com/resources/styles/mobile/Index.min.css?v=5791765 B
2.img-dpreview.com/resources/scripts/libraries/jquery-ui.min.js?v=579123.7 KiB455 ms
3.img-dpreview.com/resources/styles/mobile/News.min.css?v=57911.2 KiB775 ms
3.img-dpreview.com/resources/scripts/libraries/jquery.min.js?v=579130.6 KiB607 ms
/resources/scripts/libraries/material-components-web/mate...28.9 KiB1.4 s
4.img-dpreview.com/resources/scripts/min/MobileHomepage.js?v=579111.8 KiB302 ms
2.img-dpreview.com/resources/styles/mobile/FeaturedStrip.min.css?v=5791732 B152 ms
1.img-dpreview.com/resources/styles/mobile/Reviews.min.css?v=57911.4 KiB151 ms
1.img-dpreview.com/resources/styles/mobile/Common.min.css?v=57919.5 KiB920 ms
3.img-dpreview.com/resources/scripts/libraries/lazysizes.min.js?v=57913.5 KiB152 ms
2.img-dpreview.com/resources/styles/mobile/CommonHiRes.min.css?v=5791772 B767 ms
/resources/scripts/libraries/jquery-ui.touch-punch.min.js...1.0 KiB

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.

URLEst Savings
2.img-dpreview.com/resources/fonts/DINWeb-Bold.woff15 ms
/static/fonts/opensans/v6/cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-...5.0 ms

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: 2.6 s
URLTime Spent
dpreview.com/1.5 s
www.dpreview.com/1.0 s
m.dpreview.com/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 857 ms
URLTime Spent
m.dpreview.com/957 ms

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 28.5 KiB
URLTransfer SizeEst Savings
/resources/scripts/libraries/material-components-web/mate...28.7 KiB28.5 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: 680 ms 634.8 KiB
URLTransfer SizeEst Savings
/builds/core/50c9786/es2018/js/adthrive.min.js?deployment...375.9 KiB133.7 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...187.7 KiB87.3 KiB
/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca108.5 KiB78.5 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js146.7 KiB66.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-WQWG8FL127.2 KiB66.3 KiB
www.googletagmanager.com/gtag/js?id=G-GBDVGN57Q7154.2 KiB61.1 KiB
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js176.7 KiB59.1 KiB
c.aps.amazon-adsystem.com/apstag.js77.8 KiB39.3 KiB
/ats-modules/1031e73c-1d5d-414f-a855-f1ed4096d5ff/ats.js38.7 KiB22.3 KiB
2.img-dpreview.com/resources/scripts/libraries/jquery-ui.min.js?v=579123.6 KiB20.8 KiB

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
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js3.0 s2.4 s74 ms
Unattributable2.7 s761 ms0.0 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...2.2 s1.8 s78 ms
/builds/core/50c9786/es2018/js/adthrive.min.js?deployment...2.0 s1.6 s206 ms
c.aps.amazon-adsystem.com/apstag.js1.8 s1.6 s49 ms
m.dpreview.com/1.1 s294 ms13 ms
imasdk.googleapis.com/js/sdkloader/ima3.js1.1 s923 ms95 ms
ubiquitoussea.com/assets/js/b459d7c4fb61d1d2/9b083f10b43bc7b57d90.min.js682 ms212 ms16 ms
3.img-dpreview.com/resources/scripts/libraries/lazysizes.min.js?v=5791586 ms391 ms1.2 ms
scripts.clarity.ms/0.8.59/clarity.js527 ms456 ms28 ms
www.googletagmanager.com/gtag/js?id=G-GBDVGN57Q7522 ms440 ms65 ms
btloader.com/tag?o=5698917485248512&upapi=true&domain=dpreview.com270 ms226 ms16 ms
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js259 ms229 ms9.9 ms
www.googletagmanager.com/gtm.js?id=GTM-WQWG8FL230 ms176 ms50 ms
securepubads.g.doubleclick.net/tag/js/gpt.js213 ms189 ms23 ms
/sites/65ea5069fa5c4c7032386304/ads.min.js?referrer=https...211 ms127 ms16 ms
/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca200 ms114 ms81 ms
cdn.parsely.com/keys/dpreview.com/p.js?gtm_ver=3.2195 ms176 ms8.6 ms
cdn.id5-sync.com/api/1.0/id5PrebidModule.js191 ms144 ms13 ms
s.skimresources.com/js/31959X1726082.skimlinks.js171 ms144 ms10 ms
/69e75073-3763-483e-a64c-0d281bfd9225/launchpad-liveramp.js165 ms104 ms59 ms
ep2.adtrafficquality.google/sodar/sodar2.js155 ms147 ms3.0 ms
pghub.io/js/pandg-sdk.js147 ms141 ms4.2 ms
form-assets.mailchimp.com/snippet/account/bundle/493.0cde6ee378046aa9da16.js146 ms121 ms1.1 ms
/ats-modules/1031e73c-1d5d-414f-a855-f1ed4096d5ff/ats.js100 ms81 ms16 ms
3.img-dpreview.com/resources/scripts/libraries/jquery.min.js?v=579199 ms75 ms12 ms
sb.scorecardresearch.com/cs/6035453/beacon.js93 ms85 ms3.2 ms
www.redditstatic.com/ads/pixel.js83 ms64 ms9.2 ms
secure.quantserve.com/quant.js83 ms56 ms25 ms
launchpad.privacymanager.io/latest/launchpad.bundle.js78 ms50 ms26 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 Evaluation13.8 s
Other3.9 s
Script Parsing & Compilation1.1 s
Style & Layout417 ms
Garbage Collection324 ms
Rendering238 ms
Parse HTML & CSS124 ms

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 14.1 KiB
URLTransfer SizeEst Savings
launchpad.privacymanager.io/latest/launchpad.bundle.js45.0 KiB14.1 KiB

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
/videoplayback/id/02fb302ff891403f/itag/346/source/web_vi...1.2 MiB
/builds/core/50c9786/es2018/js/adthrive.min.js?deployment...376.2 KiB
imasdk.googleapis.com/js/core/bridge3.758.1_en.html270.9 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...187.7 KiB
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js177.1 KiB
www.googletagmanager.com/gtag/js?id=G-GBDVGN57Q7154.5 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js147.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-WQWG8FL127.2 KiB
/snippet/account/69949201?site=d64642f930fb0b96d75ab39ca109.1 KiB
/files/p/C0x763S3840x2117T800x441~feature_blocks/f2f512bb...92.0 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
Why omitting video won't make your camera cheaper body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C0x763S3840x2117T800x441~feature_blocks/f2f512bb...
Viltrox's new 35 and 55 F1.8 lenses try out a new kind of optical design body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C0x154S3840x2117T800x441~feature_blocks/25e142d4...
Apple's next CEO has spent years building the cameras he's about to inherit body.light > div#featureMarquee > div.tappableBlock > img
/files/p/C95x273S1900x1048T800x441~feature_blocks/178c77c...
dpreview.com: Digital Photography Review footer > div.footerBottom > div.logo > img.logo-dpr
m.dpreview.com/resources/images/logo-site-footer-dark.svg

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

●Layout shift culprits
●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 17 user timings
●Avoid long main-thread tasks 20 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 260 ms
●Server Backend Latencies 1,790 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
75

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
VIDEO div#featureMarquee > div.tappableBlock > span.info > span.tagLine
LENS NEWS div#featureMarquee > div.tappableBlock > span.info > span.tagLine
INDUSTRY NEWS div#featureMarquee > div.tappableBlock > span.info > span.tagLine
Latest, $400 L-mount lens pays homage to a Micro Four Thirds favorite div.newsItem > div.storyInfo > div.storyTitle > a
Lens News div.newsItem > div.storyInfo > div.infoLine > span.category
Nik Collection 9 lets you mask like the Lone Ranger (no sidekick required) div.newsItem > div.storyInfo > div.storyTitle > a
Apple's next CEO has spent years building the cameras he's about to inherit div.newsItem > div.storyInfo > div.storyTitle > a
Viltrox is trying out a new kind of optical design div.newsItem > div.storyInfo > div.storyTitle > a
Lens News div.newsItem > div.storyInfo > div.infoLine > span.category
GoPro reveals the pricing for its most exciting cameras in years div.newsItem > div.storyInfo > div.storyTitle > a
Nikon teases the beginning of a new chapter div.newsItem > div.storyInfo > div.storyTitle > a
Lens News div.newsItem > div.storyInfo > div.infoLine > span.category
This groundbreaking Chinese lens comes from an unexpected company div.newsItem > div.storyInfo > div.storyTitle > a
Lens News div.newsItem > div.storyInfo > div.infoLine > span.category
Why omitting video won't make your camera cheaper div.newsItem > div.storyInfo > div.storyTitle > a
NAB has been surprisingly interesting for photographers div.newsItem > div.storyInfo > div.storyTitle > a
Your thoughts on AI use in the DPReview community forums div.newsItem > div.storyInfo > div.storyTitle > a
Sony Creators' App tested: how well does it actually work? div.newsItem > div.storyInfo > div.storyTitle > a
Is L-mount quietly taking off as the go-to universal mount? div.newsItem > div.storyInfo > div.storyTitle > a
70 years behind the lens: Stephen Felce’s masterclass in photography craft div.newsItem > div.storyInfo > div.storyTitle > a
DJI's new pocket camera is a sneaky upgrade in value div.newsItem > div.storyInfo > div.storyTitle > a
Why Kazuto Yamaki is quietly turning Sigma into a rice farmer div.newsItem > div.storyInfo > div.storyTitle > a
What are your favorite photography-related shows or movies? div.newsItem > div.storyInfo > div.storyTitle > a
Adobe is trying to make the hardest parts of editing easier div.newsItem > div.storyInfo > div.storyTitle > a
Why Canon's cutting-edge sensor tech may not cascade down to photographers div.newsItem > div.storyInfo > div.storyTitle > a
Enter to win a $1,000 MPB gift card div.newsItem > div.storyInfo > div.storyTitle > a
Sponsored div.newsItem > div.storyInfo > div.infoLine > span.category
Leica's latest limited edition camera has a store to go with it div.newsItem > div.storyInfo > div.storyTitle > a
Ricoh GR IV Monochrome review div.review > div.reviewInfo > div.reviewTitle > a
Mar 23, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
The 9 Best mirrorless cameras in 2026 div.review > div.reviewInfo > div.reviewTitle > a
Mar 5, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
The best cameras under $3000 in 2026 div.review > div.reviewInfo > div.reviewTitle > a
Mar 4, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
The 8 best cameras for travel in 2026 div.review > div.reviewInfo > div.reviewTitle > a
Feb 27, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
Best cameras for vlogging in 2026 div.review > div.reviewInfo > div.reviewTitle > a
Feb 24, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
Sony a7 V review div.review > div.reviewInfo > div.reviewTitle > a
Feb 23, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
The best cameras under $1000 in 2026 div.review > div.reviewInfo > div.reviewTitle > a
Feb 12, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
Fujifilm X-T30 III review div.review > div.reviewInfo > div.reviewTitle > a
Feb 10, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
Panasonic Lumix DC-S1RII review div.review > div.reviewInfo > div.reviewTitle > a
Jan 30, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
External SSDs for photographers tested div.review > div.reviewInfo > div.reviewTitle > a
Jan 17, 2026 div.reviewsList > div.review > div.reviewInfo > div.reviewDate
News nav > ul > li.tappableBlock > a
Reviews nav > ul > li.tappableBlock > a
Products nav > ul > li.tappableBlock > a
Buying guides nav > ul > li.tappableBlock > a
Sample galleries nav > ul > li.tappableBlock > a
Forums nav > ul > li.tappableBlock > a
Videos nav > ul > li.tappableBlock > a
Challenges nav > ul > li.tappableBlock > a
(Desktop version) ul > li.tappableBlock > span.desktop > span.text
Galleries nav > ul > li.tappableBlock > a
(Desktop version) ul > li.tappableBlock > span.desktop > span.text
Log in nav > ul > li.tappableBlock > a
Switch to Desktop mode nav > ul#themeToggle > li.tappableBlock > a
Privacy footer > div.footerBottom > div.links > a
Legal footer > div.footerBottom > div.links > a
About us footer > div.footerBottom > div.links > a
Gear Patrol footer > div.footerBottom > div.links > a
Community Guidelines footer > div.footerBottom > div.links > a
Feedback / Contact Us footer > div.footerBottom > div.links > a
Editorial Enquiries footer > div.footerBottom > div.links > a
Licensing and Accolades footer > div.footerBottom > div.links > a
When you use DPReview links to buy products, the site may earn a commission. body.light > footer > div.footerBottom > div.affiliateDisclosure

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.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload

Adding discernable and accessible text to input buttons may help screen reader users understand the purpose of the input button. Learn more about input buttons.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
nav > div#mainSiteSearch > form > input.submitBtn nav > div#mainSiteSearch > form > input.submitBtn

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
body.light > header > a body.light > header > 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

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>`
●`[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
●`<frame>` or `<iframe>` elements have a title
●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.
●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
●Heading elements appear in a sequentially-descending order
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○`[role]`s have all required `[aria-*]` attributes
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○`[role]` values are valid
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○Buttons have an accessible name
○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 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">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○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
Topics
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js line 62, col 236510

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
m.dpreview.com/
Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13qq36qpnnergrqke4dhm&tv=10.23.0&pu=https%3A%2F%2Fm.dpreview.com%2F&ext_adt_li_unifiedid=63245913-74a2-4920-8086-ba541e199f42&wpn=prebid&cd=.dpreview.com' from origin 'https://m.dpreview.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
m.dpreview.com/
Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13qq36qpnnergrqke4dhm&tv=10.23.0&pu=https%3A%2F%2Fm.dpreview.com%2F&ext_adt_li_unifiedid=63245913-74a2-4920-8086-ba541e199f42&wpn=prebid&cd=.dpreview.com' from origin 'https://m.dpreview.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
m.dpreview.com/
Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13qq36qpnnergrqke4dhm&tv=10.23.0&pu=https%3A%2F%2Fm.dpreview.com%2F&ext_adt_li_unifiedid=63245913-74a2-4920-8086-ba541e199f42&wpn=prebid&cd=.dpreview.com' from origin 'https://m.dpreview.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
m.dpreview.com/
Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13qq36qpnnergrqke4dhm&tv=10.23.0&pu=https%3A%2F%2Fm.dpreview.com%2F&ext_adt_li_unifiedid=63245913-74a2-4920-8086-ba541e199f42&wpn=prebid&cd=.dpreview.com' from origin 'https://m.dpreview.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13...
Failed to load resource: net::ERR_FAILED
/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13...
Failed to load resource: net::ERR_FAILED
/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13...
Failed to load resource: net::ERR_FAILED
/j?dtstmp=1776809009515&se=e30&duid=6bdd24f5ee7b--01kps13...
Failed to load resource: net::ERR_FAILED
/ups/58404/fed?v=1&1p=0&gdpr=0&gdpr_consent=&us_privacy=&...
Failed to load resource: the server responded with a status of 400 ()
ads.adthrive.com/builds/core/50c9786/vendor/prebid/es2018/prebid.min.js line 62, col 236510
Uncaught (in promise) InvalidAccessError: The "interest-cohort" Permissions Policy denied the use of document.browsingTopics().
●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
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

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.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload
div.reviewsList > div.review > div.reviewImage > img.lazyload div.reviewsList > div.review > div.reviewImage > img.lazyload

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

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