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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

76

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.

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:1.579 source:map[column:222 line:92 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 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:62.571 source:map[type:text value:[unattributed]]] map[reflowTime:0.29 source:map[column:140 line:184 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.393 source:map[column:76 line:124 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.208 source:map[column:178 line:124 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.187 source:map[column:288 line:124 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.114 source:map[column:302 line:21 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.08 source:map[column:280 line:21 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 urlProvider:network]] map[reflowTime:0.307 source:map[column:40 line:126 type:source-location url:https://www.cafepress.com/scripts/compiled/template_common_8f6ebdecda6818c64faf874e1d710792340eca60_desktop_cafus_home.min.js?8f6ebdecda6818c64faf874e1d710792340eca60 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
creatives.attn.tv/cafepress/CP_Spring_BG_24_d05ed081_1c3cc0f7.jpg824.1 KiB637.2 KiB
div.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/70da7060-2360-4820-a012-3ba5351428321.jpg631.5 KiB531.0 KiB
div.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/cms/80d97011-280b-4bc3-bf97-9f33ade78b2b1.png387.5 KiB272.5 KiB
div.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/cms/05d18357-8e24-4337-9ad1-b56a4bb0bd931.png350.0 KiB249.7 KiB
Shop CafePress Business section.container-slider > div.row > a.ga-click-hero > img
/images/home/slideshow/d0826367-c2a3-46d2-84e8-7eaefbecf1...202.7 KiB151.5 KiB
AMERICA'S 250™ a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/d4881ff0-09f1-4323-ac0d-71309bbe94ce1.jpg186.8 KiB151.4 KiB
Shop Mothers Day Gifts div.row > a.ga-click-hero > picture > img#mainSlider
/images/home/slideshow/f9c6b947-d458-4f52-ad95-f7533cbc45...198.0 KiB146.8 KiB
Gifts for Her a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/f1c3b4a6-d436-4d55-b6bc-41b4c5cd69d31.jpg167.2 KiB131.8 KiB
PEANUTS®  a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/2afa0318-7c6a-4941-8f76-bcc082f7e2421.jpg160.0 KiB124.5 KiB
Graduation a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/24e39f35-12b1-404c-ab46-bd9cc154a9821.jpg144.3 KiB108.8 KiB
Gardening a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/52dfd1b4-ff03-4c27-9d1c-3b625c140d501.jpg79.4 KiB65.1 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101493289577-2-384-384-2026-side0-underlays-fl...64.1 KiB54.1 KiB
Gifting Ideas a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/f69286f4-2acd-4475-92e5-e5bdaa82ca041.jpg67.1 KiB52.9 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-100456227305-1-384-384-2026-side0-underlays-fl...55.7 KiB45.7 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101508268557-1-384-384-2026-side0-underlays-fl...55.1 KiB45.1 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-100715362526-1-384-384-2026-side0-underlays-fl...54.1 KiB44.1 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101290046933-2-384-384-2026-side0-underlays-fl...51.4 KiB41.4 KiB
Travel Themed a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/315f8aae-2926-4d51-8130-1938218debe61.jpg52.9 KiB38.7 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-102044111812-2-384-384-2026-side0-underlays-fl...46.4 KiB36.4 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101071522704-1-384-384-2026-side0-underlays-fl...37.1 KiB27.2 KiB
Military Appreciation a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/440002eb-ac08-4ebd-97e3-40a4cbc969a31.jpg40.4 KiB26.2 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-100440548859-2-384-384-2026-side0-underlays-fl...35.2 KiB25.3 KiB
T-shirts a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/0f6858e9-ebeb-4c7c-8760-3e707d7066cd1.jpg27.4 KiB18.9 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101662682676-2-384-384-2026-side0-underlays-fl...27.7 KiB17.7 KiB
Create your own a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/769da293-1987-4a5f-ae86-72b13755c52f1.jpg21.9 KiB13.4 KiB
Pajamas a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/46509636-ff43-4588-9bb5-298ac20412b61.jpg21.0 KiB12.5 KiB
Power Rangers a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/13dd596c-15ab-4564-8dd1-582c99008e6e1.jpg11.4 KiB9.2 KiB
head > meta head > meta
creatives.attn.tv/cafepress/cp-logo-final-white_1f451695_38ef5a12.png9.0 KiB8.5 KiB
Mother's Day Cards a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/4cfb178b-80d6-4a1e-ba45-cfecbe26ed841.jpg16.9 KiB8.4 KiB
div.design-image-container > ul.image-list > li.preview-image > img div.design-image-container > ul.image-list > li.preview-image > img
/preview/7-101013974720-2-384-384-2026-side0-underlays-fl...12.5 KiB7.3 KiB
Jewelry a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/e6a73ab6-be3b-4f3c-b884-41b6bfe214421.jpg14.8 KiB6.3 KiB
Play-Doh a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/6583622c-e3d4-49e5-9c0c-8af6b23d7df41.jpg8.1 KiB6.0 KiB
Twister® a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/51d73b80-4cff-44c6-a8f0-b7115b80a4951.jpg8.2 KiB5.9 KiB
Transformers a.col > div.card-item-thumb > div.stackable-image-container > img.g-img-responsive
/images/home/35da2da6-f346-45af-ba42-3adc382cc4451.jpg7.8 KiB5.4 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:7248.31500012207 label:Time to first byte subpart:timeToFirstByte] map[duration:19.218999877929686 label:Resource load delay subpart:resourceLoadDelay] map[duration:121.52 label:Resource load duration subpart:resourceLoadDuration] map[duration:375.562 label:Element render delay subpart:elementRenderDelay]]
lhId: page-5-IMG
nodeLabel: Shop Mothers Day Gifts
path: 1,HTML,1,BODY,14,DIV,3,DIV,2,SECTION,0,DIV,0,A,0,PICTURE,1,IMG
selector: div.row > a.ga-click-hero > picture > img#mainSlider
snippet: <img src="https://d32u6scf3pzwp7.cloudfront.net/images/home/slideshow/f9c6b947-d458-…" alt="Shop Mothers Day Gifts" width="1200" height="815" id="mainSlider">

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-5-IMG
nodeLabel: Shop Mothers Day Gifts
path: 1,HTML,1,BODY,14,DIV,3,DIV,2,SECTION,0,DIV,0,A,0,PICTURE,1,IMG
selector: div.row > a.ga-click-hero > picture > img#mainSlider
snippet: <img src="https://d32u6scf3pzwp7.cloudfront.net/images/home/slideshow/f9c6b947-d458-…" alt="Shop Mothers Day Gifts" width="1200" height="815" id="mainSlider">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
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
/css2?family=Nunito:ital,wght@0,100;0,200;0,300;0,400;0,5...1.5 KiB300 ms
/scripts/compiled/template_common_8f6ebdecda6818c64faf874...107.3 KiB202 ms
/templates/cpbus/js/favorites.js?8f6ebdecda6818c64faf874e...1.2 KiB
/scripts/time_storage.js?8f6ebdecda6818c64faf874e1d710792...791 B
/templates/default/css/main.css?8f6ebdecda6818c64faf874e1...3.8 KiB
/templates/default/css/menu.css?8f6ebdecda6818c64faf874e1...2.4 KiB
/templates/cpbus/css/main.css?8f6ebdecda6818c64faf874e1d7...16.7 KiB
/templates/cpbus/css/header.css?8f6ebdecda6818c64faf874e1...4.1 KiB
/templates/default/css/responsive/menu.css?8f6ebdecda6818...577 B
/templates/cpbus/css/header_cp.css?8f6ebdecda6818c64faf87...2.3 KiB
/templates/default/css/header.css?8f6ebdecda6818c64faf874...1.4 KiB
/templates/cpbus/css/main_cp.css?8f6ebdecda6818c64faf874e...957 B
/scripts/js/jquery-ui/css/flat_theme/jquery-ui-1.10.3.cus...5.6 KiB

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
creatives.attn.tv/cafepress/CP_Spring_BG_24_d05ed081_1c3cc0f7.jpg0.0 ms825.4 KiB
capig.cafepress.com/sdk/6188128189554943718/events.js1800.0 s144.5 KiB
/signals/config/1626139385410254?v=2.9.303&r=stable&domai...1200.0 s125.1 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
d32u6scf3pzwp7.cloudfront.net/images/as_see_in/as_seen_in_cpbus_desktop.png0.0 ms63.0 KiB
/preview/7-101493289577-2-384-384-2026-side0-underlays-fl...900.0 s64.6 KiB
/preview/7-100456227305-1-384-384-2026-side0-underlays-fl...900.0 s56.1 KiB
/preview/7-101508268557-1-384-384-2026-side0-underlays-fl...900.0 s55.5 KiB
/preview/7-100715362526-1-384-384-2026-side0-underlays-fl...900.0 s54.5 KiB
cdn.attn.tv/tag/4-latest/unified-tag.js?v=4-latest_eecc809c32300.0 s49.3 KiB
/preview/7-101290046933-2-384-384-2026-side0-underlays-fl...900.0 s51.8 KiB
cdn.cookielaw.org/scripttemplates/202411.2.0/otBannerSdk.js86400.0 s112.9 KiB
www.clickcease.com/monitor/stat.js0.0 ms43.6 KiB
/preview/7-102044111812-2-384-384-2026-side0-underlays-fl...900.0 s46.8 KiB
/preview/7-101071522704-1-384-384-2026-side0-underlays-fl...900.0 s37.6 KiB
/preview/7-100440548859-2-384-384-2026-side0-underlays-fl...900.0 s35.7 KiB
d.mail.cafepress.com/track.v2.js0.0 ms29.1 KiB
/preview/7-101662682676-2-384-384-2026-side0-underlays-fl...900.0 s28.1 KiB
ob.herbstarsbuilding.com/i/231ab6ff5835d26178963c8f16b5ed36.js43200.0 s44.6 KiB
ads.nextdoor.com/v2/public/pixel/advmtch.js600.0 s23.6 KiB
ads.nextdoor.com/public/pixel/ndp.js600.0 s18.9 KiB
/preview/7-101013974720-2-384-384-2026-side0-underlays-fl...900.0 s12.9 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
creatives.attn.tv/cafepress/cp-logo-final-white_1f451695_38ef5a12.png0.0 ms9.4 KiB
www.datadoghq-browser-agent.com/datadog-logs.js14400.0 s12.0 KiB
cdn.cookielaw.org/logos/static/ot_company_logo.png86400.0 s19.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
cdn.attn.tv/cafepress/dtag.js120.0 s3.8 KiB
cdn.cookielaw.org/consent/35405a57-27e1-481a-ab9c-c6f2c021fe58/otSDKStub.js86400.0 s7.7 KiB
d32u6scf3pzwp7.cloudfront.net/cafus/cp-logo-final-02.svg0.0 ms2.9 KiB
commcontents3.planetart.com/prod/icon/swatch_8971_26.gif0.0 ms2.8 KiB
www.cafepress.com/templates/images/icon-phone-cp.svg0.0 ms1.8 KiB
chatbot.planetart.com/chat.js?4935580.0 ms1.6 KiB
commcontents3.planetart.com/prod/icon/swatch_8931_98.gif0.0 ms1.6 KiB
commcontents3.planetart.com/prod/icon/swatch_8931_173.gif0.0 ms1.6 KiB
commcontents3.planetart.com/prod/icon/swatch_8908_311.gif0.0 ms1.6 KiB
commcontents3.planetart.com/prod/icon/swatch_8908_312.gif0.0 ms1.6 KiB
commcontents3.planetart.com/prod/icon/swatch_8908_1.gif0.0 ms1.5 KiB
commcontents3.planetart.com/prod/icon/swatch_8908_266.gif0.0 ms1.1 KiB
www.cafepress.com/templates/images/icon-cart.svg0.0 ms1.0 KiB
www.cafepress.com/templates/images/icon-favorite.svg0.0 ms1.0 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.5 KiB
www.cafepress.com/templates/images/icon-chat-cp.svg0.0 ms987 B
www.cafepress.com/templates/images/icons/icon-favorite-thin.svg0.0 ms892 B
www.cafepress.com/templates/images/icon-account.svg0.0 ms881 B
commcontents3.planetart.com/prod/icon/swatch_8910_29.gif0.0 ms876 B
commcontents3.planetart.com/prod/icon/swatch_8971_29.gif0.0 ms875 B
commcontents3.planetart.com/prod/icon/swatch_8910_9.gif0.0 ms873 B
cdn.attn.tv/growth-tag-assets/client-configs/2Ee.js120.0 s830 B
commcontents3.planetart.com/prod/icon/swatch_8910_31.gif0.0 ms760 B
www.cafepress.com/templates/images/icon-search.svg0.0 ms720 B
commcontents3.planetart.com/prod/icon/swatch_8910_30.gif0.0 ms717 B
commcontents3.planetart.com/prod/icon/swatch_8971_1.gif0.0 ms483 B
commcontents3.planetart.com/prod/icon/swatch_8910_1.gif0.0 ms482 B
commcontents3.planetart.com/prod/icon/swatch_8931_175.gif0.0 ms480 B
/collect?v=2&fmt=js&pid=6536196&time=1776809084916&li_ads...0.0 ms464 B
commcontents3.planetart.com/prod/icon/swatch_8910_26.gif0.0 ms452 B
/tr/?id=1626139385410254&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B

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
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...5.0 ms
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...5.0 ms

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: 389 ms
URLTime Spent
cafepress.com/389 ms
www.cafepress.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: 6.9 s
URLTime Spent
www.cafepress.com/7.0 s

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 90 ms 617.5 KiB
URLTransfer SizeEst Savings
/scripts/compiled/template_common_8f6ebdecda6818c64faf874...106.8 KiB82.4 KiB
www.googletagmanager.com/gtag/js?id=G-EMFE14TQ12&cx=c&gtm=4e64h1170.4 KiB63.7 KiB
cdn.cookielaw.org/scripttemplates/202411.2.0/otBannerSdk.js112.6 KiB63.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-KBNJVF4L178.5 KiB63.0 KiB
capig.cafepress.com/sdk/6188128189554943718/events.js144.3 KiB56.5 KiB
www.googletagmanager.com/gtag/js?id=AW-1025648074&cx=c&gtm=4e64h1134.1 KiB54.4 KiB
www.googletagmanager.com/gtag/js?id=AW-1069598603&cx=c&gtm=4e64h1145.7 KiB52.7 KiB
/signals/config/1626139385410254?v=2.9.303&r=stable&domai...125.0 KiB44.3 KiB
www.cafepress.com/scripts/functions.js?8f6ebdecda6818c64faf874e1d710792340eca6046.5 KiB42.0 KiB
www.clickcease.com/monitor/stat.js42.9 KiB38.5 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.8 KiB
cdn.attn.tv/tag/4-latest/unified-tag.js?v=4-latest_eecc809c3248.8 KiB23.9 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
Script Evaluation1.3 s
Other509 ms
Style & Layout187 ms
Script Parsing & Compilation174 ms
Parse HTML & CSS63 ms
Rendering43 ms
Garbage Collection31 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
Pages with cache-control:no-store header cannot enter back/forward cache.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 4.0 KiB
URLTransfer SizeEst Savings
/templates/cpbus/css/main.css?8f6ebdecda6818c64faf874e1d7...16.7 KiB4.0 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 19.5 KiB
URLTransfer SizeEst Savings
www.cafepress.com/scripts/functions.js?8f6ebdecda6818c64faf874e1d710792340eca6046.9 KiB17.4 KiB
/templates/js/dialog/outofstock.js?8f6ebdecda6818c64faf87...5.0 KiB2.0 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 34.5 KiB
URLTransfer SizeEst Savings
19.9 KiB19.6 KiB
/templates/cpbus/css/main.css?8f6ebdecda6818c64faf874e1d7...16.2 KiB14.9 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
creatives.attn.tv/cafepress/CP_Spring_BG_24_d05ed081_1c3cc0f7.jpg825.4 KiB
/images/home/70da7060-2360-4820-a012-3ba5351428321.jpg632.5 KiB
/images/home/cms/80d97011-280b-4bc3-bf97-9f33ade78b2b1.png388.3 KiB
/images/home/cms/05d18357-8e24-4337-9ad1-b56a4bb0bd931.png350.8 KiB
/images/home/cms/c91719c3-79f7-42c8-a1df-5c6a118376751.jpg242.9 KiB
/images/home/slideshow/d0826367-c2a3-46d2-84e8-7eaefbecf1...203.3 KiB
/images/home/slideshow/f9c6b947-d458-4f52-ad95-f7533cbc45...198.6 KiB
/images/home/d4881ff0-09f1-4323-ac0d-71309bbe94ce1.jpg187.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KBNJVF4L178.8 KiB
www.googletagmanager.com/gtag/js?id=G-EMFE14TQ12&cx=c&gtm=4e64h1170.5 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.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/cms/80d97011-280b-4bc3-bf97-9f33ade78b2b1.png
div.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/70da7060-2360-4820-a012-3ba5351428321.jpg
div.stacked-guide-wrapper > a > div.stacked-guide-image > img div.stacked-guide-wrapper > a > div.stacked-guide-image > img
/images/home/cms/05d18357-8e24-4337-9ad1-b56a4bb0bd931.png
Shop CafePress Business section.container-slider > div.row > a.ga-click-hero > img
/images/home/slideshow/d0826367-c2a3-46d2-84e8-7eaefbecf1...
as-seen-in div.main-content > div.as-seen-in > div.as-seen-in-content > img
d32u6scf3pzwp7.cloudfront.net/images/as_see_in/as_seen_in_cpbus_desktop.png
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
div.design-item-wrapper > a > div.design-image-container > img.empty-image div.design-item-wrapper > a > div.design-image-container > img.empty-image
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==

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

●Max Potential First Input Delay 110 ms
●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●User Timing marks and measures 23 user timings
●JavaScript execution time 1.2 s
●Avoid long main-thread tasks 8 long tasks found
●Network Requests
●Network Round Trip Times 80 ms
●Server Backend Latencies 180 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○Avoid non-composited animations
90

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
Sell on CafePress header.site-header-wrapper > div.site-header-content > div.site-header-bar > a.new-seller-button
Business ul.row > li.col > div.row > a.col
Mom-tastic Deals Are Blooming. div.container-promo-banner > div.container > span.promo-text > span
SAVE 30% on Everything! div.container-promo-banner > div.container > span.promo-text > span
Price as marked. Savings based on Comp. Value. div.container > span.promo-text > span > span.nowrap
Some exclusions apply.* div.container > span.promo-text > span > span.nowrap

These are opportunities to improve the legibility of your content.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<frame>` or `<iframe>` elements have a title
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Document has a main landmark.
●The page contains a heading, skip link, or landmark region
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements use only permitted ARIA attributes
○`[role]`s have all required `[aria-*]` attributes
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○`[role]` values are valid
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○Buttons have an accessible name
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○Heading elements appear in a sequentially-descending order
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Image elements have `[alt]` attributes
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○Links have a discernible name
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○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.
○`<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.
81

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
AttributionReporting
snap.licdn.com/li.lms-analytics/insight.min.js
●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 browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
○Mitigate clickjacking with XFO or CSP
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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
cookiepedia.co.uk/giving-consent-to-cookiesMore information

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`
○Image elements have `[alt]` attributes

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