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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.

38

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
www.divephotoguide.com/files/uploaded_files/uwaa2025-5.jpg0.0 ms528.7 KiB
www.divephotoguide.com/files/uploaded_files/think-pink2025-3.jpg0.0 ms453.3 KiB
www.divephotoguide.com/images/image_day/b/1776356499-image_file.jpg0.0 ms377.0 KiB
www.divephotoguide.com/images/rotator/home/b/1775250391.jpg0.0 ms371.1 KiB
www.divephotoguide.com/files/uploaded_files/equipment.jpg0.0 ms353.8 KiB
www.divephotoguide.com/images/rotator/home/b/1776264866.jpg0.0 ms305.6 KiB
www.divephotoguide.com/images/rotator/home/b/1776226072.jpg0.0 ms303.0 KiB
www.divephotoguide.com/files/uploaded_files/dm2025-winners.jpg0.0 ms274.7 KiB
www.divephotoguide.com/files/uploaded_files/voo2026-winners.jpg0.0 ms260.1 KiB
www.divephotoguide.com/images/rotator/home/b/1776355127.jpg0.0 ms254.7 KiB
www.divephotoguide.com/images/rotator/home/b/1774629754.jpg0.0 ms233.0 KiB
www.divephotoguide.com/images/features/l/1775139477.jpg0.0 ms152.7 KiB
www.divephotoguide.com/images/features/l/1776263822.jpg0.0 ms137.1 KiB
www.divephotoguide.com/images/features/l/1774474333.jpg0.0 ms134.2 KiB
www.divephotoguide.com/images/techniques/l/1774712243.jpg0.0 ms115.5 KiB
www.divephotoguide.com/images/news/l/1776354192.jpg0.0 ms113.8 KiB
www.divephotoguide.com/images/travels/l/1776224734.jpg0.0 ms111.3 KiB
www.divephotoguide.com/images/features/l/1774100799.jpg0.0 ms93.7 KiB
www.divephotoguide.com/images/partners/1396556327.png0.0 ms72.5 KiB
www.divephotoguide.com/fonts/8e9ee02b-f337-4f13-ad6c-969d6d6536c8.woff0.0 ms67.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
www.divephotoguide.com/js/jquery.js0.0 ms56.2 KiB
www.divephotoguide.com/fonts/530dee22-e3c1-4e9f-bf62-c31d510d9656.woff0.0 ms55.7 KiB
www.divephotoguide.com/styles/styles.css?v=2022042218250.0 ms46.5 KiB
www.divephotoguide.com/images/news/l/1774231833.jpg0.0 ms43.7 KiB
www.divephotoguide.com/fonts/41c174b1-68c1-41b7-a19f-5ec80929b115.woff0.0 ms37.6 KiB
www.divephotoguide.com/fonts/060031a3-ab11-4f91-9dd4-6b39458f5109.woff0.0 ms36.3 KiB
www.divephotoguide.com/fonts/7cc7234f-05ac-4109-8b8a-93f13c489739.woff0.0 ms25.3 KiB
f.vimeocdn.com/p/4.46.41/js/player.module.js1209600.0 s210.2 KiB
www.divephotoguide.com/fonts/558e1882-61fa-42c9-b946-2ff0b251d89e.woff0.0 ms19.9 KiB
www.divephotoguide.com/images/partners/1383247196.png0.0 ms13.8 KiB
ssl.google-analytics.com/ga.js7200.0 s17.4 KiB
www.divephotoguide.com/fitch/resources/colorbox/jquery.colorbox-min.js0.0 ms11.0 KiB
www.divephotoguide.com/styles/fonts.css0.0 ms10.5 KiB
f.vimeocdn.com/p/4.46.41/js/vendor.module.js1209600.0 s93.5 KiB
www.divephotoguide.com/images/partners/1383247211.png0.0 ms8.5 KiB
www.divephotoguide.com/images/partners/1383247240.png0.0 ms7.6 KiB
www.divephotoguide.com/img/main/logo.png0.0 ms7.0 KiB
www.divephotoguide.com/js/jquery.easing-1.3.js0.0 ms6.8 KiB
www.divephotoguide.com/images/partners/1460081715.png0.0 ms6.3 KiB
www.divephotoguide.com/js/jquery.heroCarousel-1.3.js0.0 ms5.4 KiB
www.gstatic.com/eureka/clank/147/cast_sender.js86400.0 s13.4 KiB
www.divephotoguide.com/img/main/social_icons2.png0.0 ms5.0 KiB
www.divephotoguide.com/images/partners/1383247184.png0.0 ms4.8 KiB
www.divephotoguide.com/fitch/resources/colorbox/colorbox.css0.0 ms4.5 KiB
www.divephotoguide.com/js/common.js?v=2022042218250.0 ms3.8 KiB
www.divephotoguide.com/js/jquery.jcarousellite_1.0.1.min.js0.0 ms2.6 KiB
www.divephotoguide.com/js/unserialize.js0.0 ms2.5 KiB
f.vimeocdn.com/p/4.46.41/css/player.css1209600.0 s23.9 KiB
www.divephotoguide.com/js/search.js?v=2022042218250.0 ms2.3 KiB
www.divephotoguide.com/js/homepage.js0.0 ms2.2 KiB
connect.facebook.net/en_US/all.js#xfbml=1&appId=4831154018044041200.0 s1.8 KiB
www.divephotoguide.com/img/main/icon_arrow2_next.png0.0 ms1.5 KiB
www.divephotoguide.com/img/main/icon_arrow2_prev.png0.0 ms1.5 KiB
www.divephotoguide.com/img/main/icon_arrow_next.png0.0 ms1.5 KiB
www.divephotoguide.com/img/main/icon_arrow_prev.png0.0 ms1.5 KiB
www.divephotoguide.com/img/main/icon_mag_glass.png0.0 ms1.4 KiB
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
/pagead/js/r20260420/r20110914/client/window_focus_fy2021.js1209600.0 s1.2 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s0 B
/pagead/js/r20260420/r20110914/client/window_focus_fy2021.js1209600.0 s0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.18306299999999998] map[node:map[boundingRect:map[bottom:1776 height:777 left:0 right:1000 top:999 width:1000] lhId:page-27-UL nodeLabel:NEWS ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced… path:1,HTML,1,BODY,7,DIV,9,UL selector:body > div.wrapper > ul.content-grid snippet:<ul class="content-grid"> type:node] score:0.182882 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1169 height:170 left:23 right:310 top:999 width:287] lhId:page-14-IMG nodeLabel:ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced path:1,HTML,1,BODY,7,DIV,9,UL,0,LI,0,A,0,IMG selector:ul.content-grid > li > a.main-img > img snippet:<img src="/images/news/l/1776354192.jpg" alt="ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:2365 height:28 left:801 right:989 top:2337 width:188] lhId:page-22-DIV nodeLabel:Aaron Sanders path:1,HTML,1,BODY,7,DIV,10,DIV,2,DIV selector:body > div.wrapper > div.image-of-the-day > div.author snippet:<div class="author"> type:node] score:0.000181 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1169 height:170 left:23 right:310 top:999 width:287] lhId:page-14-IMG nodeLabel:ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced path:1,HTML,1,BODY,7,DIV,9,UL,0,LI,0,A,0,IMG selector:ul.content-grid > li > a.main-img > img snippet:<img src="/images/news/l/1776354192.jpg" alt="ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced"> type:node]]] type:subitems]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
www.divephotoguide.com/fonts/530dee22-e3c1-4e9f-bf62-c31d510d9656.woff205 ms
www.divephotoguide.com/fonts/7cc7234f-05ac-4109-8b8a-93f13c489739.woff120 ms
www.divephotoguide.com/fonts/8e9ee02b-f337-4f13-ad6c-969d6d6536c8.woff115 ms
www.divephotoguide.com/fonts/41c174b1-68c1-41b7-a19f-5ec80929b115.woff115 ms
www.divephotoguide.com/fonts/558e1882-61fa-42c9-b946-2ff0b251d89e.woff110 ms
www.divephotoguide.com/fonts/060031a3-ab11-4f91-9dd4-6b39458f5109.woff110 ms

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:2.179 source:map[column:27581 line:19 type:source-location url:https://www.divephotoguide.com/js/jquery.js 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:0.371 source:map[column:48212 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097963 urlProvider:network]] map[reflowTime:1.085 source:map[type:text value:[unattributed]]] map[reflowTime:0.641 source:map[column:9100 line:11 type:source-location url:https://www.divephotoguide.com/js/jquery.js urlProvider:network]] map[reflowTime:1.355 source:map[column:12484 line:18 type:source-location url:https://www.divephotoguide.com/js/jquery.js urlProvider:network]] map[reflowTime:0.183 source:map[column:9510 line:11 type:source-location url:https://www.divephotoguide.com/js/jquery.js urlProvider:network]] map[reflowTime:0.559 source:map[column:102033 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097963 urlProvider:network]] map[reflowTime:0.767 source:map[column:241846 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097963 urlProvider:network]] map[reflowTime:0.129 source:map[column:157572 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097963 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.wrapper > div.image-of-the-day > a > img div.wrapper > div.image-of-the-day > a > img
www.divephotoguide.com/images/image_day/b/1776356499-image_file.jpg376.7 KiB316.7 KiB
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/think-pink2025-3.jpg453.0 KiB296.8 KiB
ul.slideshow > li.current > a > img ul.slideshow > li.current > a > img
www.divephotoguide.com/images/rotator/home/b/1776264866.jpg305.3 KiB272.4 KiB
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/equipment.jpg353.5 KiB243.3 KiB
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1774629754.jpg232.7 KiB199.9 KiB
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/uwaa2025-5.jpg528.4 KiB195.8 KiB
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/dm2025-winners.jpg274.4 KiB165.9 KiB
Photographing Batfish ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1775139477.jpg152.5 KiB144.5 KiB
Photographer of the Week – Aaron Sanders ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1776263822.jpg136.8 KiB128.9 KiB
Photographing Ontario’s Salmon Run ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774474333.jpg133.9 KiB125.9 KiB
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1776355127.jpg254.5 KiB115.7 KiB
Shallow Depth of Field: Make Your Subject Stand Out ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/techniques/l/1774712243.jpg115.3 KiB107.3 KiB
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/voo2026-winners.jpg259.8 KiB103.6 KiB
Destination Portfolio: Western Scotland, James Lynott ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/travels/l/1776224734.jpg111.0 KiB103.1 KiB
ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/news/l/1776354192.jpg113.6 KiB89.2 KiB
Interviews with the Pros: Jules Jacobs ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774100799.jpg93.4 KiB85.5 KiB
UWP Mag ul.partners-list > li > a > img.bottom_partners
www.divephotoguide.com/images/partners/1396556327.png72.2 KiB71.0 KiB
body.jar > div#google_image_div > a#aw0 > img.img_ad body.jar > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/4936759643596462396137.4 KiB67.3 KiB
Isotta Announces Housing for the Nikon Z50 II ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/news/l/1774231833.jpg43.4 KiB35.4 KiB
DiveNewsWire ul.partners-list > li > a > img.bottom_partners
www.divephotoguide.com/images/partners/1383247196.png13.5 KiB12.3 KiB
Underwater Journal ul.partners-list > li > a > img.bottom_partners
www.divephotoguide.com/images/partners/1383247211.png8.3 KiB7.1 KiB
Underwater Australia ul.partners-list > li > a > img.bottom_partners
www.divephotoguide.com/images/partners/1383247240.png7.4 KiB6.2 KiB
Underwater360 ul.partners-list > li > a > img.bottom_partners
www.divephotoguide.com/images/partners/1460081715.png6.0 KiB4.8 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-0-IMG
nodeLabel: div.wrapper > div.image-of-the-day > a > img
path: 1,HTML,1,BODY,7,DIV,10,DIV,0,A,0,IMG
selector: div.wrapper > div.image-of-the-day > a > img
snippet: <img src="/images/image_day/b/1776356499-image_file.jpg">

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
www.divephotoguide.com/http/1.1
www.divephotoguide.com/styles/fonts.csshttp/1.1
www.divephotoguide.com/styles/styles.css?v=202204221825http/1.1
www.divephotoguide.com/js/jquery.jshttp/1.1
www.divephotoguide.com/js/unserialize.jshttp/1.1
www.divephotoguide.com/js/common.js?v=202204221825http/1.1
www.divephotoguide.com/js/search.js?v=202204221825http/1.1
www.divephotoguide.com/fitch/resources/colorbox/colorbox.csshttp/1.1
www.divephotoguide.com/fitch/resources/colorbox/jquery.colorbox-min.jshttp/1.1
www.divephotoguide.com/site.webmanifesthttp/1.1
www.divephotoguide.com/js/jquery.easing-1.3.jshttp/1.1
www.divephotoguide.com/js/jquery.heroCarousel-1.3.jshttp/1.1
www.divephotoguide.com/js/jquery.jcarousellite_1.0.1.min.jshttp/1.1
www.divephotoguide.com/js/homepage.jshttp/1.1
www.divephotoguide.com/images/news/l/1776354192.jpghttp/1.1
www.divephotoguide.com/images/features/l/1776263822.jpghttp/1.1
www.divephotoguide.com/images/travels/l/1776224734.jpghttp/1.1
www.divephotoguide.com/images/features/l/1775139477.jpghttp/1.1
www.divephotoguide.com/images/techniques/l/1774712243.jpghttp/1.1
www.divephotoguide.com/images/features/l/1774474333.jpghttp/1.1
www.divephotoguide.com/images/news/l/1774231833.jpghttp/1.1
www.divephotoguide.com/images/features/l/1774100799.jpghttp/1.1
www.divephotoguide.com/images/image_day/b/1776356499-image_file.jpghttp/1.1
www.divephotoguide.com/files/uploaded_files/voo2026-winners.jpghttp/1.1
www.divephotoguide.com/files/uploaded_files/dm2025-winners.jpghttp/1.1
www.divephotoguide.com/files/uploaded_files/think-pink2025-3.jpghttp/1.1
www.divephotoguide.com/files/uploaded_files/uwaa2025-5.jpghttp/1.1
www.divephotoguide.com/files/uploaded_files/equipment.jpghttp/1.1
www.divephotoguide.com/images/partners/1383247184.pnghttp/1.1
www.divephotoguide.com/images/partners/1383247196.pnghttp/1.1
www.divephotoguide.com/images/partners/1383247211.pnghttp/1.1
www.divephotoguide.com/images/partners/1396556327.pnghttp/1.1
www.divephotoguide.com/images/partners/1383247240.pnghttp/1.1
www.divephotoguide.com/images/partners/1460081715.pnghttp/1.1
www.divephotoguide.com/img/main/social_icons2.pnghttp/1.1
www.divephotoguide.com/img/main/logo.pnghttp/1.1
www.divephotoguide.com/img/main/icon_mag_glass.pnghttp/1.1
www.divephotoguide.com/fonts/530dee22-e3c1-4e9f-bf62-c31d510d9656.woffhttp/1.1
www.divephotoguide.com/fonts/558e1882-61fa-42c9-b946-2ff0b251d89e.woffhttp/1.1
www.divephotoguide.com/img/main/icon_arrow2_prev.pnghttp/1.1
www.divephotoguide.com/img/main/icon_arrow2_next.pnghttp/1.1
www.divephotoguide.com/fonts/7cc7234f-05ac-4109-8b8a-93f13c489739.woffhttp/1.1
www.divephotoguide.com/fonts/8e9ee02b-f337-4f13-ad6c-969d6d6536c8.woffhttp/1.1
www.divephotoguide.com/fonts/060031a3-ab11-4f91-9dd4-6b39458f5109.woffhttp/1.1
www.divephotoguide.com/fonts/41c174b1-68c1-41b7-a19f-5ec80929b115.woffhttp/1.1
www.divephotoguide.com/img/main/icon_arrow_prev.pnghttp/1.1
www.divephotoguide.com/img/main/icon_arrow_next.pnghttp/1.1
www.divephotoguide.com/images/rotator/home/b/1776355127.jpghttp/1.1
www.divephotoguide.com/images/rotator/home/b/1776264866.jpghttp/1.1
www.divephotoguide.com/images/rotator/home/b/1776226072.jpghttp/1.1
www.divephotoguide.com/images/rotator/home/b/1775250391.jpghttp/1.1
www.divephotoguide.com/images/rotator/home/b/1774629754.jpghttp/1.1
www.divephotoguide.com/favicon.icohttp/1.1
www.divephotoguide.com/favicon.svghttp/1.1

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
www.divephotoguide.com/js/jquery.js56.2 KiB2.0 s
www.divephotoguide.com/styles/styles.css?v=20220422182546.5 KiB1.7 s
www.divephotoguide.com/fitch/resources/colorbox/jquery.colorbox-min.js11.0 KiB1.2 s
www.divephotoguide.com/js/jquery.jcarousellite_1.0.1.min.js2.6 KiB263 ms
www.divephotoguide.com/js/jquery.heroCarousel-1.3.js5.4 KiB506 ms
www.divephotoguide.com/js/jquery.easing-1.3.js6.8 KiB992 ms
www.divephotoguide.com/js/search.js?v=2022042218252.3 KiB749 ms
www.divephotoguide.com/js/common.js?v=2022042218253.8 KiB749 ms
www.divephotoguide.com/js/unserialize.js2.5 KiB749 ms
www.divephotoguide.com/fitch/resources/colorbox/colorbox.css4.5 KiB992 ms
www.divephotoguide.com/styles/fonts.css10.5 KiB749 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.0 s
URLTime Spent
divephotoguide.com/1.0 s
www.divephotoguide.com/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
NEWS ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced… body > div.wrapper > ul.content-grid
0.183
Aaron Sanders body > div.wrapper > div.image-of-the-day > div.author
0.000

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: 230 ms 49.0 KiB
URLTransfer SizeEst Savings
www.divephotoguide.com/styles/styles.css?v=20220422182546.2 KiB38.8 KiB
www.divephotoguide.com/styles/fonts.css10.2 KiB10.2 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: 1.5 s 349.1 KiB
URLTransfer SizeEst Savings
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...187.4 KiB102.9 KiB
www.googletagmanager.com/gtag/js?id=G-E59ZQY1QRL&cx=c&gtm=4e64h1157.0 KiB66.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-MBHLT3117.0 KiB64.2 KiB
connect.facebook.net/en_US/all.js?hash=a630e45de2009f1377685cae59765faa82.5 KiB53.7 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.0 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
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...1.0 s894 ms70 ms
Unattributable521 ms25 ms0.0 ms
/pagead/managed/js/activeview/current/ufs_web_display.js441 ms387 ms36 ms
www.divephotoguide.com/260 ms8.3 ms4.1 ms
www.googletagmanager.com/gtag/js?id=G-E59ZQY1QRL&cx=c&gtm=4e64h1237 ms191 ms38 ms
www.divephotoguide.com/js/jquery.js227 ms114 ms5.6 ms
www.googletagmanager.com/gtm.js?id=GTM-MBHLT3108 ms81 ms26 ms
connect.facebook.net/en_US/all.js?hash=a630e45de2009f1377685cae59765faa84 ms61 ms21 ms
www.googletagservices.com/tag/js/gpt.js77 ms57 ms20 ms
ssl.google-analytics.com/ga.js69 ms63 ms3.6 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 Evaluation1.9 s
Other671 ms
Script Parsing & Compilation236 ms
Style & Layout206 ms
Rendering58 ms
Parse HTML & CSS50 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
The page has an unload handler in a sub frame.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 5.1 KiB
URLTransfer SizeEst Savings
www.divephotoguide.com/styles/styles.css?v=20220422182546.5 KiB5.1 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 3.1 KiB
URLTransfer SizeEst Savings
www.divephotoguide.com/js/jquery.easing-1.3.js6.5 KiB3.1 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
www.divephotoguide.com/files/uploaded_files/uwaa2025-5.jpg528.7 KiB
www.divephotoguide.com/files/uploaded_files/think-pink2025-3.jpg453.3 KiB
www.divephotoguide.com/images/image_day/b/1776356499-image_file.jpg377.0 KiB
www.divephotoguide.com/images/rotator/home/b/1775250391.jpg371.1 KiB
www.divephotoguide.com/files/uploaded_files/equipment.jpg353.8 KiB
www.divephotoguide.com/images/rotator/home/b/1776264866.jpg305.6 KiB
www.divephotoguide.com/images/rotator/home/b/1776226072.jpg303.0 KiB
www.divephotoguide.com/files/uploaded_files/dm2025-winners.jpg274.7 KiB
www.divephotoguide.com/files/uploaded_files/voo2026-winners.jpg260.1 KiB
www.divephotoguide.com/images/rotator/home/b/1776355127.jpg254.7 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.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/uwaa2025-5.jpg
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/voo2026-winners.jpg
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/think-pink2025-3.jpg
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/equipment.jpg
div.wrapper > div.slideshow-wrapper > a > img div.wrapper > div.slideshow-wrapper > a > img
www.divephotoguide.com/files/uploaded_files/dm2025-winners.jpg
ADEX 2026 Voice of the Ocean Photo+Video+Art Competition Winners Announced ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/news/l/1776354192.jpg
Photographer of the Week – Aaron Sanders ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1776263822.jpg
Destination Portfolio: Western Scotland, James Lynott ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/travels/l/1776224734.jpg
Photographing Batfish ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1775139477.jpg
Shallow Depth of Field: Make Your Subject Stand Out ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/techniques/l/1774712243.jpg
Photographing Ontario’s Salmon Run ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774474333.jpg
Isotta Announces Housing for the Nikon Z50 II ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/news/l/1774231833.jpg
Interviews with the Pros: Jules Jacobs ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774100799.jpg

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

●Optimize DOM size
●LCP breakdown
●User Timing marks and measures 5 user timings
●Avoid long main-thread tasks 9 long tasks found
●Network Requests
●Network Round Trip Times 90 ms
●Server Backend Latencies 190 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 410 ms
○INP breakdown
○Avoid non-composited animations
69

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.wrapper > div.header > form.search-form > input#keyword div.wrapper > div.header > form.search-form > input#keyword
PHOTO NEWS div#newsSlider > ul > li > a.category
PHOTO NEWS div#newsSlider > ul > li > a.category
PHOTO NEWS div#newsSlider > ul > li > a.category
DIVING NEWS div#newsSlider > ul > li > a.category
NEWS div.wrapper > ul.content-grid > li > a.type
PHOTOGRAPHER OF THE WEEK div.wrapper > ul.content-grid > li > a.type
TRAVEL div.wrapper > ul.content-grid > li > a.type
CRITTER CORNER div.wrapper > ul.content-grid > li > a.type
TECHNIQUES div.wrapper > ul.content-grid > li > a.type
FRESHWATER ADVENTURES div.wrapper > ul.content-grid > li > a.type
NEWS div.wrapper > ul.content-grid > li > a.type
INTERVIEWS WITH THE PROS div.wrapper > ul.content-grid > li > a.type

These are opportunities to improve the legibility of your content.

Names and labels

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
div.wrapper > div.header > form.search-form > input div.wrapper > div.header > form.search-form > input

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.wrapper > div.header > form.search-form > input#keyword div.wrapper > div.header > form.search-form > input#keyword

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div.wrapper > div.slideshow-wrapper > iframe body > div.wrapper > div.slideshow-wrapper > iframe

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.top-line-outer > div.top-line > div.social-icons > a.instagram div.top-line-outer > div.top-line > div.social-icons > a.instagram
div.top-line-outer > div.top-line > div.social-icons > a.facebook div.top-line-outer > div.top-line > div.social-icons > a.facebook
div.top-line-outer > div.top-line > div.social-icons > a.twitter div.top-line-outer > div.top-line > div.social-icons > a.twitter
div.top-line-outer > div.top-line > div.social-icons > a.threads div.top-line-outer > div.top-line > div.social-icons > a.threads
div.top-line-outer > div.top-line > div.social-icons > a.youtube div.top-line-outer > div.top-line > div.social-icons > a.youtube
div.top-line-outer > div.top-line > div.social-icons > a.rss div.top-line-outer > div.top-line > div.social-icons > a.rss
div.slideshow-wrapper > ul.slideshow > li > a div.slideshow-wrapper > ul.slideshow > li > a
div.slideshow-wrapper > ul.slideshow > li > a div.slideshow-wrapper > ul.slideshow > li > a
div.slideshow-wrapper > ul.slideshow > li > a div.slideshow-wrapper > ul.slideshow > li > a
div.slideshow-wrapper > ul.slideshow > li > a div.slideshow-wrapper > ul.slideshow > 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

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.wrapper > div.header > form.search-form > input div.wrapper > div.header > form.search-form > input
PHOTOGRAPHER OF THE WEEK div.wrapper > ul.content-grid > li > a.type
Photographer of the Week – Aaron Sanders div.wrapper > ul.content-grid > li > a.title
CRITTER CORNER div.wrapper > ul.content-grid > li > a.type
Photographing Batfish div.wrapper > ul.content-grid > li > a.title
FRESHWATER ADVENTURES div.wrapper > ul.content-grid > li > a.type
Photographing Ontario’s Salmon Run div.wrapper > ul.content-grid > li > a.title
NEWS div.wrapper > ul.content-grid > li > a.type
Isotta Announces Housing for the Nikon Z50 II div.wrapper > ul.content-grid > li > a.title
INTERVIEWS WITH THE PROS div.wrapper > ul.content-grid > li > a.type
Interviews with the Pros: Jules Jacobs div.wrapper > ul.content-grid > li > a.title
About Us div.wrapper > ul.bottom-nav > li > a
Contact div.wrapper > ul.bottom-nav > li > a
Advertise div.wrapper > ul.bottom-nav > li > a
Techniques div.wrapper > ul.bottom-nav > li > a
Articles div.wrapper > ul.bottom-nav > li > a
News div.wrapper > ul.bottom-nav > li > a
Travel div.wrapper > ul.bottom-nav > li > a
Galleries div.wrapper > ul.bottom-nav > li > a
Equipment div.wrapper > ul.bottom-nav > li > a
Contests div.wrapper > ul.bottom-nav > li > a
Underwater Competition div.wrapper > ul.bottom-nav > li > a
DPG Expeditions div.wrapper > ul.bottom-nav > li > a
DPG TV div.wrapper > ul.bottom-nav > li > a
Facebook div.wrapper > ul.bottom-nav > li > a
X (Twitter) div.wrapper > ul.bottom-nav > li > a
Threads div.wrapper > ul.bottom-nav > li > a
Instagram div.wrapper > ul.bottom-nav > li > a
Contribute div.wrapper > ul.bottom-nav > li > a
Join the Team div.wrapper > ul.bottom-nav > li > a

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
●Image elements have `[alt]` attributes
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Heading elements appear in a sequentially-descending order
○`[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-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
○`[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 an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
73

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
ul.slideshow > li.current > a > img ul.slideshow > li.current > a > img
www.divephotoguide.com/images/rotator/home/b/1776355127.jpg649 x 429 (1.51)1200 x 800 (1.50)
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1774629754.jpg649 x 429 (1.51)550 x 367 (1.50)
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1776264866.jpg649 x 429 (1.51)550 x 367 (1.50)
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1776226072.jpg649 x 429 (1.51)550 x 367 (1.50)
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1775250391.jpg649 x 429 (1.51)550 x 367 (1.50)

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
div.wrapper > div.image-of-the-day > a > img div.wrapper > div.image-of-the-day > a > img
www.divephotoguide.com/images/image_day/b/1776356499-image_file.jpg978 x 564800 x 4611467 x 846
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1774629754.jpg649 x 429550 x 367974 x 644
ul.slideshow > li > a > img ul.slideshow > li > a > img
www.divephotoguide.com/images/rotator/home/b/1776264866.jpg649 x 429550 x 367974 x 644
Interviews with the Pros: Jules Jacobs ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774100799.jpg287 x 170287 x 170431 x 255
Photographing Ontario’s Salmon Run ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1774474333.jpg287 x 170287 x 170431 x 255
Photographing Batfish ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1775139477.jpg287 x 170287 x 170431 x 255
Photographer of the Week – Aaron Sanders ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/features/l/1776263822.jpg287 x 170287 x 170431 x 255
Isotta Announces Housing for the Nikon Z50 II ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/news/l/1774231833.jpg287 x 170287 x 170431 x 255
Shallow Depth of Field: Make Your Subject Stand Out ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/techniques/l/1774712243.jpg287 x 170287 x 170431 x 255
Destination Portfolio: Western Scotland, James Lynott ul.content-grid > li > a.main-img > img
www.divephotoguide.com/images/travels/l/1776224734.jpg287 x 170287 x 170431 x 255

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
www.divephotoguide.com/js/jquery.js line 18, col 13785
●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
●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
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.

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
LOGIN div.top-line-outer > div.top-line > div.login > a#popupLoginLink

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

○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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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