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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.

45

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
files.fm/avatars/thumb.php?i=6f197dc_2147483647.jpg5.0 s125.1 KiB
analytics.files.fm/matomo.js0.0 ms67.0 KiB
files.fm/avatars/thumb.php?i=7248ed2_2147483647.jpg5.0 s52.8 KiB
files.fm/avatars/thumb.php?i=8936_2147483647.jpg5.0 s43.8 KiB
files.fm/images/landing/blobs/blob_5.png604800.0 s415.6 KiB
files.fm/images/landing/ai-image-en.png604800.0 s346.8 KiB
files.fm/images/landing/articles-with-pictures/3-why-choose.webp604800.0 s327.8 KiB
files.fm/images/library/gradient.jpg604800.0 s272.1 KiB
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=1750410211259200.0 s122.1 KiB
/images/landing/articles-with-pictures/Files.fm-cloud-sto...604800.0 s217.5 KiB
files.fm/avatars/thumb.php?i=6f2987b_2147483647.jpg5.0 s19.1 KiB
files.fm/avatars/thumb.php?i=7223953_2147483647.jpg5.0 s16.0 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
files.fm/images/landing/blobs/blob_6.png604800.0 s156.6 KiB
files.fm/js/jquery-ui-1.11.4.custom/jquery-ui.min.js?v=1750410214259200.0 s62.7 KiB
files.fm/images/landing/blobs/blob_16.png604800.0 s113.0 KiB
files.fm/images/landing/blobs/blob_9.png604800.0 s106.5 KiB
files.fm/avatars/thumb.php?i=71a9f28_2147483647.jpg5.0 s9.5 KiB
files.fm/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?14400.0 s13.0 KiB
files.fm/images/landing/blobs/blob_17.png604800.0 s79.9 KiB
files.fm/js/jquery-1.12.2.min.js?v=1750410208259200.0 s33.4 KiB
files.fm/css/landing.css?v=1775821696259200.0 s24.5 KiB
files.fm/css/fonts/Roboto-Regular.woff22073600.0 s50.3 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
files.fm/images/landing/blobs/blob_3.png604800.0 s39.6 KiB
files.fm/images/signup_form/login-google.svg?v=2604800.0 s38.8 KiB
files.fm/css/font-awesome-pro/css/fontawesome.min.css?v=1750410216259200.0 s16.7 KiB
files.fm/js/uploadify/jquery.uploadifive.custom_folderupload.js?v=1750410215259200.0 s16.2 KiB
files.fm/js/index.js?v=1750410214259200.0 s15.4 KiB
files.fm/images/landing/blobs/blob_8.png604800.0 s23.5 KiB
files.fm/images/landing/blobs/blob_2.png604800.0 s23.5 KiB
files.fm/css/fonts/AlbertaSans/AlbertSans-ExtraBold.ttf2073600.0 s23.7 KiB
files.fm/css/fonts/AlbertaSans/AlbertSans-Bold.ttf2073600.0 s23.0 KiB
files.fm/css/fonts/AlbertaSans/AlbertSans-Medium.ttf2073600.0 s23.0 KiB
files.fm/css/fonts/AlbertaSans/AlbertSans-SemiBold.ttf2073600.0 s22.9 KiB
files.fm/css/fonts/AlbertaSans/AlbertSans-Regular.ttf2073600.0 s22.6 KiB
files.fm/js/library/library.js?v=1750410215259200.0 s8.0 KiB
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.min.css?v=1750410211259200.0 s7.8 KiB
files.fm/images/signup_form/login-facebook.svg?v=2604800.0 s15.4 KiB
files.fm/css/header.css?v=1772531017259200.0 s7.7 KiB
files.fm/js/jquery-migrate-1.3.0.js?v=1750410214259200.0 s7.4 KiB
files.fm/css/font-awesome-new/css/font-awesome.min.css?v=1750410218259200.0 s7.2 KiB
files.fm/js/global.js?v=1768232690259200.0 s6.8 KiB
files.fm/css/global.css?v=1750410217259200.0 s6.3 KiB
files.fm/css/footer.css?v=19259200.0 s6.2 KiB
files.fm/js/functions.js?v=1750410215259200.0 s4.6 KiB
files.fm/css/sign_in_form.css?v=35259200.0 s4.3 KiB
files.fm/css/global_colors.css?v=1773408830259200.0 s4.2 KiB
files.fm/js/thickbox.js?v=1750410215259200.0 s4.1 KiB
files.fm/ts/chat/dist/chat.css?v=1750410234259200.0 s3.2 KiB
files.fm/images/loadingAnimation.gif604800.0 s6.2 KiB
files.fm/images/logo/rebranded/files-fm-logo-slogan.svg604800.0 s6.0 KiB
files.fm/css/global_facelift.css?v=1750410217259200.0 s3.0 KiB
files.fm/js/JSON/cycle.js?v=1750410215259200.0 s2.5 KiB
files.fm/js/Captcha/Google/LazyGoogleReCaptchaV2.js259200.0 s2.3 KiB
files.fm/css/inputs.css?v=1750410217259200.0 s2.3 KiB
files.fm/css/modal_reset.css?v=1769600693259200.0 s2.3 KiB
files.fm/js/client_detection.js?v=1750410215259200.0 s2.0 KiB
files.fm/css/thickbox.css?v=1750410217259200.0 s2.0 KiB
files.fm/js/inputs.js?v=1750410214259200.0 s2.0 KiB
files.fm/css/elements/pricing_v2.css?v=11259200.0 s1.7 KiB
files.fm/css/modal.css?v=1750410216259200.0 s1.5 KiB
files.fm/js/modal.js?v=1761296085259200.0 s1.5 KiB
files.fm/js/info_tooltips.js?v=1750410216259200.0 s1.5 KiB
files.fm/js/uploadify/uploadifive.css?v=1750410214259200.0 s1.3 KiB
files.fm/css/alert.css?v=1750410218259200.0 s1.2 KiB
files.fm/bootstrap/css/dropdown.css?v=1750410200259200.0 s1.2 KiB
files.fm/js/jquery.cookie.js?v=1750410215259200.0 s1.2 KiB
files.fm/js/google_conversion.js?v=4259200.0 s1.1 KiB
files.fm/css/reset.css?v=1750410217259200.0 s880 B
files.fm/images/UI_icons/white/mail_sparkle.svg604800.0 s1.6 KiB
files.fm/images/UI_icons/linux.svg604800.0 s1.6 KiB
files.fm/images/UI_icons/convert_pdf.svg604800.0 s1.6 KiB
files.fm/css/font-awesome-pro/css/light.min.css?v=1750410216259200.0 s728 B
files.fm/images/UI_icons/flags/en.png604800.0 s1.4 KiB
files.fm/images/UI_icons/flags/es.png604800.0 s1.4 KiB
files.fm/images/UI_icons/cart.svg604800.0 s1.3 KiB
files.fm/js/landing.js?v=1750410214259200.0 s686 B
files.fm/images/UI_icons/flags/uk.png604800.0 s1.3 KiB
files.fm/css/font-awesome-pro/css/brands.min.css?v=1750410216259200.0 s574 B
files.fm/images/UI_icons/white/chat_AI.svg604800.0 s1.1 KiB
files.fm/images/UI_icons/images.svg604800.0 s1.1 KiB
files.fm/js/event.js?v=1750410214259200.0 s558 B
files.fm/images/UI_icons/convert_video.svg604800.0 s1.1 KiB
files.fm/js/alert.js?v=1750410214259200.0 s526 B
files.fm/css/messages/messages.css?v=1750410217259200.0 s512 B
files.fm/images/landing/arrow-down-button.svg604800.0 s1023 B
files.fm/images/european-flag.svg604800.0 s992 B
files.fm/images/UI_icons/transfer.svg604800.0 s975 B
files.fm/images/UI_icons/file_upload.svg604800.0 s914 B
files.fm/images/UI_icons/videocall.svg604800.0 s902 B
files.fm/images/UI_icons/white/face.svg604800.0 s875 B
files.fm/images/UI_icons/white/file_sparkle.svg604800.0 s864 B
files.fm/images/UI_icons/face.svg604800.0 s858 B
files.fm/images/UI_icons/flags/de.png604800.0 s842 B
files.fm/images/landing/upload_cloud_red_comb.svg604800.0 s839 B
files.fm/images/UI_icons/flags/fi.png604800.0 s834 B
files.fm/images/UI_icons/arrow_down.svg604800.0 s824 B
files.fm/images/landing/upload_cloud.svg604800.0 s820 B
files.fm/images/UI_icons/white/image_square.svg604800.0 s794 B
files.fm/images/signup_form/log_in.svg?v=2604800.0 s751 B
files.fm/images/UI_icons/white/microphone.svg604800.0 s740 B
files.fm/images/UI_icons/white/text_square.svg604800.0 s732 B
files.fm/images/UI_icons/flags/ua.png604800.0 s724 B
files.fm/images/UI_icons/white/search_square.svg604800.0 s706 B
files.fm/images/UI_icons/flags/lv.png604800.0 s699 B
files.fm/images/signup_form/login-microsoft.svg604800.0 s689 B
files.fm/images/landing/upload_cloud_white.svg604800.0 s665 B
files.fm/images/UI_icons/check.svg604800.0 s659 B
files.fm/images/landing/form/edit_blue.svg604800.0 s658 B
files.fm/images/signup_form/log_in_blue.svg?v=2604800.0 s630 B
files.fm/images/landing/send.svg604800.0 s605 B
files.fm/images/signup_form/sign_up.svg604800.0 s605 B
files.fm/images/upload-queue-item-close-new.svg604800.0 s596 B
files.fm/images/UI_icons/burger_menu.svg604800.0 s593 B
files.fm/images/landing/upload_cloud_white_arrow.svg604800.0 s538 B
files.fm/images/UI_icons/inputs/dropdown_grey.svg604800.0 s510 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
files.fm/css/fonts/AlbertaSans/AlbertSans-Regular.ttf35 ms
files.fm/css/fonts/AlbertaSans/AlbertSans-Bold.ttf35 ms
files.fm/css/fonts/AlbertaSans/AlbertSans-ExtraBold.ttf35 ms
files.fm/css/fonts/AlbertaSans/AlbertSans-Medium.ttf30 ms
files.fm/css/fonts/AlbertaSans/AlbertSans-SemiBold.ttf30 ms
files.fm/css/fonts/Roboto-Regular.woff225 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:28.814 source:map[type:text value:[unattributed]]]]

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:396.4930009765625 label:Time to first byte subpart:timeToFirstByte] map[duration:365.1479990234375 label:Resource load delay subpart:resourceLoadDelay] map[duration:38.906 label:Resource load duration subpart:resourceLoadDuration] map[duration:1770.96 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-DIV
nodeLabel: The easiest way to store and share Photos | Videos | Audio | Documents The fast…
path: 1,HTML,1,BODY,7,DIV,9,DIV,9,SECTION,0,DIV
selector: div#container > div#content > section#landing-section > div.container
snippet: <div class="container">

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-DIV
nodeLabel: The easiest way to store and share Photos | Videos | Audio | Documents The fast…
path: 1,HTML,1,BODY,7,DIV,9,DIV,9,SECTION,0,DIV
selector: div#container > div#content > section#landing-section > div.container
snippet: <div class="container">

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

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
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=1750410211122.1 KiB665 ms
files.fm/js/jquery-ui-1.11.4.custom/jquery-ui.min.js?v=175041021462.7 KiB333 ms
files.fm/error_handler_client?v=42.0 KiB
files.fm/js/alert.js?v=1750410214526 B
files.fm/js/modal.js?v=17612960851.5 KiB
files.fm/js/thickbox.js?v=17504102154.1 KiB
files.fm/js/functions.js?v=17504102154.6 KiB166 ms
files.fm/js/event.js?v=1750410214558 B
files.fm/js/global.js?v=17682326906.8 KiB
files.fm/js/JSON/cycle.js?v=17504102152.5 KiB
files.fm/js/jquery-migrate-1.3.0.js?v=17504102147.4 KiB
files.fm/js/info_tooltips.js?v=17504102161.5 KiB
files.fm/js/jquery.cookie.js?v=17504102151.2 KiB
files.fm/js/jquery-1.12.2.min.js?v=175041020833.4 KiB166 ms
files.fm/css/font-awesome-pro/css/light.min.css?v=1750410216728 B
files.fm/css/font-awesome-pro/css/brands.min.css?v=1750410216574 B
files.fm/css/font-awesome-pro/css/fontawesome.min.css?v=175041021616.7 KiB166 ms
files.fm/css/alert.css?v=17504102181.2 KiB
files.fm/css/global.css?v=17504102176.3 KiB166 ms
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.min.css?v=17504102117.8 KiB166 ms
files.fm/css/font-awesome-new/css/font-awesome.min.css?v=17504102187.2 KiB
files.fm/css/header.css?v=17725310177.7 KiB
files.fm/bootstrap/css/dropdown.css?v=17504102001.2 KiB
files.fm/css/global_colors.css?v=17734088304.2 KiB
files.fm/css/modal.css?v=17504102161.5 KiB
files.fm/css/modal_reset.css?v=17696006932.3 KiB
files.fm/css/thickbox.css?v=17504102172.0 KiB
files.fm/ts/chat/dist/chat.css?v=17504102343.2 KiB
files.fm/js/google_conversion.js?v=41.1 KiB
files.fm/css/global_facelift.css?v=17504102173.0 KiB
files.fm/css/inputs.css?v=17504102172.3 KiB
files.fm/css/messages/messages.css?v=1750410217512 B
files.fm/css/reset.css?v=1750410217880 B

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#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover div#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover
files.fm/profile_background.php?i=119683411.webp&t=17768187911.3 MiB847.7 KiB
ai div.container > div.content > div#ai > img.title-image
files.fm/images/landing/ai-image-en.png346.0 KiB324.6 KiB
Securely Store div.container > div.image-grid > div.image-grid-item > img.mobile
files.fm/images/landing/articles-with-pictures/3-why-choose.webp327.1 KiB307.7 KiB
div#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover div#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover
files.fm/profile_background.php?i=116496348.webp&t=1776818791447.4 KiB252.8 KiB
div#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover div#library_profiles_scroll > div#library_profiles > div.library_top_profiles_item > div.profile_cover
files.fm/profile_background.php?i=35126.webp&t=1776818791621.6 KiB244.0 KiB
File upload and file sharing cloud storage platform section#one_platform > div.image-grid > div.image-grid-item > img.mobile
/images/landing/articles-with-pictures/Files.fm-cloud-sto...217.0 KiB199.3 KiB
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
files.fm/avatars/thumb.php?i=6f197dc_2147483647.jpg124.6 KiB108.1 KiB
The security and protection of your data is our priority Files.fm has 16 years … body.lang_en > div#container > div#content > section#client_infinite_try
files.fm/images/landing/blobs/blob_5.png414.7 KiB37.9 KiB
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
files.fm/avatars/thumb.php?i=7248ed2_2147483647.jpg52.5 KiB36.0 KiB
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
files.fm/avatars/thumb.php?i=8936_2147483647.jpg43.5 KiB27.0 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

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: 260 ms 72.2 KiB
URLTransfer SizeEst Savings
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=1750410211121.8 KiB43.9 KiB
files.fm/js/uploadify/jquery.uploadifive.custom_folderupload.js?v=175041021515.8 KiB10.0 KiB
inline: var bolRewriteUrlHash = true; …10.1 KiB5.3 KiB
files.fm/js/index.js?v=175041021415.0 KiB4.8 KiB
files.fm/js/library/library.js?v=17504102157.6 KiB2.7 KiB
files.fm/js/jquery-migrate-1.3.0.js?v=17504102147.1 KiB2.7 KiB
files.fm/js/global.js?v=17682326906.5 KiB2.7 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: 90 ms 30.7 KiB
URLTransfer SizeEst Savings
files.fm/css/font-awesome-pro/css/fontawesome.min.css?v=175041021616.4 KiB16.4 KiB
files.fm/css/landing.css?v=177582169624.2 KiB14.3 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: 2.6 s 520.4 KiB
URLTransfer SizeEst Savings
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=1750410211121.8 KiB102.3 KiB
www.googletagmanager.com/gtag/js?id=G-H8LJ280FZW&cx=c&gtm=4e64h1161.1 KiB69.1 KiB
www.googletagmanager.com/gtag/js?id=G-EFZ32Z07VR&cx=c&gtm=4e64h1177.1 KiB68.3 KiB
www.googletagmanager.com/gtag/js?id=UA-1970559-6&cx=c&gtm=4e64h1125.0 KiB65.3 KiB
www.googletagmanager.com/gtag/js?id=UA-1970559-10125.0 KiB63.5 KiB
www.googletagmanager.com/gtag/js?id=AW-1043031755&cx=c&gtm=4e64h1136.6 KiB61.0 KiB
files.fm/js/jquery-ui-1.11.4.custom/jquery-ui.min.js?v=175041021462.4 KiB54.9 KiB
analytics.files.fm/matomo.js66.4 KiB36.1 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
files.fm/1.1 s56 ms19 ms
Unattributable991 ms117 ms0.0 ms
www.googletagmanager.com/gtag/js?id=G-EFZ32Z07VR&cx=c&gtm=4e64h1254 ms161 ms60 ms
www.googletagmanager.com/gtag/js?id=G-H8LJ280FZW&cx=c&gtm=4e64h1206 ms164 ms39 ms
files.fm/cdn-cgi/challenge-platform/scripts/jsd/main.js196 ms186 ms2.9 ms
files.fm/js/jquery-1.12.2.min.js?v=1750410208192 ms116 ms10 ms
www.googletagmanager.com/gtag/js?id=UA-1970559-10170 ms114 ms28 ms
www.googletagmanager.com/gtag/js?id=AW-1043031755&cx=c&gtm=4e64h1168 ms136 ms31 ms
www.googletagmanager.com/gtag/js?id=UA-1970559-6&cx=c&gtm=4e64h1151 ms107 ms26 ms
files.fm/js/global.js?v=176823269092 ms33 ms2.6 ms
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=175041021177 ms32 ms44 ms
files.fm/js/jquery-ui-1.11.4.custom/jquery-ui.min.js?v=175041021475 ms31 ms17 ms
www.google-analytics.com/analytics.js68 ms50 ms17 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 Evaluation1.4 s
Other1.3 s
Style & Layout589 ms
Script Parsing & Compilation340 ms
Rendering154 ms
Parse HTML & CSS110 ms
Garbage Collection17 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 7.2 KiB
URLTransfer SizeEst Savings
files.fm/css/landing.css?v=177582169624.5 KiB5.0 KiB
files.fm/css/header.css?v=17725310177.7 KiB2.3 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
files.fm/profile_background.php?i=119683411.webp&t=17768187911.3 MiB
files.fm/profile_background.php?i=35126.webp&t=1776818791622.6 KiB
files.fm/profile_background.php?i=116496348.webp&t=1776818791448.3 KiB
files.fm/images/landing/blobs/blob_5.png415.6 KiB
files.fm/images/landing/ai-image-en.png346.8 KiB
files.fm/images/landing/articles-with-pictures/3-why-choose.webp327.8 KiB
files.fm/images/library/gradient.jpg272.1 KiB
/images/landing/articles-with-pictures/Files.fm-cloud-sto...217.5 KiB
www.googletagmanager.com/gtag/js?id=G-EFZ32Z07VR&cx=c&gtm=4e64h1177.2 KiB
www.googletagmanager.com/gtag/js?id=G-H8LJ280FZW&cx=c&gtm=4e64h1161.2 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
ai div.container > div.content > div#ai > img.title-image
files.fm/images/landing/ai-image-en.png
Securely Store div.container > div.image-grid > div.image-grid-item > img.mobile
files.fm/images/landing/articles-with-pictures/3-why-choose.webp
File upload and file sharing cloud storage platform section#one_platform > div.image-grid > div.image-grid-item > img.mobile
/images/landing/articles-with-pictures/Files.fm-cloud-sto...
Files.fm div.container > div.nav-left > a.navbar-brand > img.logo
files.fm/images/logo/rebranded/files-fm-logo-slogan.svg
⌄ div#content > div.arrow > a > img#scroll-down
files.fm/images/landing/arrow-down-button.svg
Linux Desktop div.article > div.product-icons > a.product-icon > img
files.fm/images/UI_icons/linux.svg
Linux Shell div.article > div.product-icons > a.product-icon > img
files.fm/images/UI_icons/linux.svg
Windows File sync app div.article > div.product-icons > a.product-icon > img
Android Files app div.article > div.product-icons > a.product-icon > img
iOS File upload app div.article > div.product-icons > a.product-icon > img
Mac div.article > div.product-icons > a.product-icon > img
LTRK div.article > div.container > a > img
SPRK div.article > div.container > a > img
LATVIJAS INFORMĀCIJAS UN KOMUNIKĀCIJAS TEHNOLOĢIJAS ASOCIĀCIJA div.article > div.container > a > img
IT klasteris div.article > div.container > a > img
Arčers div.article > div.container > a > img
LFF div.article > div.container > a > img
LTV div.article > div.container > a > img
Siguldas pašvaldība div.article > div.container > a > img
Eparaksts div.article > div.container > a > img
Latvia State Radio and Television Centre div.article > div.container > a > img
Metta div.article > div.container > a > img
The Horizon 2020 INNOSUP programme aims to test new approaches for better innov… div.article > div.container > a > img
Microsoft cloud storage partner div.article > div.container > a > img
e-shelter is part of the Global Data Centers division of NTT and develops and r… div.article > div.container > a > img
TET data centers div.article > div.container > a > img
Blockvis data experts div.article > div.container > a > img
features div#infinite > div.infinite_items > div.item_card > img
photos div#infinite > div.infinite_items > div.item_card > img
private div#infinite > div.infinite_items > div.item_card > img
public div#infinite > div.infinite_items > div.item_card > img
store div#infinite > div.infinite_items > div.item_card > img
tools div#infinite > div.infinite_items > div.item_card > img

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

●Layout shift culprits
●Document request latency
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●User Timing marks and measures 10 user timings
●Avoid long main-thread tasks 12 long tasks found
●Avoid non-composited animations 16 animated elements found
●Network Requests
●Network Round Trip Times 60 ms
●Server Backend Latencies 40 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 350 ms
○INP breakdown
○Avoid large layout shifts
82

Accessibility

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

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
New ul > li.nav-right > div > a#signup
Create folder to receive files from others div#file_upload_title_wrap > div#upload-box-outer > div#receive_files_wrapper > div#receive_files_desc
New div#ai > div.product-icons > a.product-icon-card > div.product-icon-tag
BETA div#ai > div.product-icons > a.product-icon-card > div.product-icon-tag
New div#ai > div.product-icons > a.product-icon-card > div.product-icon-tag
New div#ai > div.product-icons > a.product-icon-card > div.product-icon-tag
Explore all div#content > section#library > div.article > div.library_button
Most popular features div#pricing > div.pricing-flex > div#pro > div.banner
/month ul > li.price_wrap > div.price > span
Upgrade to PRO div#pro > div > div > a.button
/month ul > li.price_wrap > div.price > span
OK body.lang_en > div#footer_bottom_floating_line > div#footer_bottom_floating_line__cookies > button#footer_bottom_floating_line__cookies__ok_btn

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
terms div#footer_bottom_floating_line > div#footer_bottom_floating_line__cookies > div#footer_bottom_floating_line__cookies__text > a
cookie policy. div#footer_bottom_floating_line > div#footer_bottom_floating_line__cookies > div#footer_bottom_floating_line__cookies__text > a

These are opportunities to improve the legibility of your content.

Names and labels

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#file_adding_container > div#file_select_button > div#uploadifive-file_upload > input div#file_adding_container > div#file_select_button > div#uploadifive-file_upload > input

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#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img div#library_profiles > div.library_top_profiles_item > div.profile_info > a.profile_img
div.footer_block > div.float_left > div#files_socials > a.social_icon div.footer_block > div.float_left > div#files_socials > a.social_icon
div.footer_block > div.float_left > div#files_socials > a.social_icon div.footer_block > div.float_left > div#files_socials > a.social_icon
div.footer_block > div.float_left > div#files_socials > a.social_icon div.footer_block > div.float_left > div#files_socials > a.social_icon
div.footer_block > div.float_left > div#files_socials > a.social_icon div.footer_block > div.float_left > div#files_socials > a.social_icon
div.footer_block > div.float_left > div#files_socials > a.social_icon div.footer_block > div.float_left > div#files_socials > a.social_icon

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#adaptive_html html#adaptive_html

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Deprecated ARIA roles were not used
●Image elements do not have `[alt]` attributes that are redundant text.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○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
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○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
○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

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
files.fm/js/functions.js?v=1750410215 line 65, col 57
Fledge
files.fm/js/functions.js?v=1750410215 line 65, col 57
SharedStorage
files.fm/cdn-cgi/challenge-platform/scripts/jsd/main.js

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
files.fm/js/jquery-ui-1.12.1.custom/jquery-ui.js?v=1750410211
●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
●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
○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
Log in ul > li.nav-right > div#login > a#login_button
New ul > li.nav-right > div > a#signup
div.container > ul#nav-functional > li.nav-button > a.nav-link div.container > ul#nav-functional > li.nav-button > a.nav-link
Use a coupon div#createaccount-modal-content > div#createaccount-simple-container > div#createaccount-modal-link-container > a#createaccount-modal-coupon-link
Use a coupon div#signin-modal-content > div#signin-modal-content-simple > div#signin-modal-link-container > a#signin-modal-coupon-link
Insert this gallery into content div#file_upload_title_wrap > div#upload-box-outer > div#after_file_upload_wodpress_gallery > a#after_file_upload_wodpress_gallery_button

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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