Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
js-eu1.hs-analytics.net/analytics/1776885600000/25667276.js	300.0 s	42.3 KiB
/signals/config/1574367439535888?v=2.9.303&r=stable&domai...	1200.0 s	44.9 KiB
js-eu1.usemessages.com/conversations-embed.js	600.0 s	32.8 KiB
scripts.clarity.ms/0.8.59/clarity.js	0.0 ms	26.1 KiB
js-eu1.hubspot.com/web-interactives-embed.js	600.0 s	28.3 KiB
res4.applovin.com/p/104/b/bs.c9e1074f5b3f9fc8ea15d152add07294-1.iife.js	3600.0 s	30.5 KiB
web.cmp.usercentrics.eu/ui/TvGdprCmpView.35a2009d.js	3600.0 s	29.6 KiB
js-eu1.hs-banner.com/v2/25667276/banner.js	300.0 s	24.1 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
ssl.pstatic.net/melona/libs/gfp-nac-module/synchronizer.js	3175.0 s	18.2 KiB
static.preply.com/ds/fonts/en/PreplyInter.var.woff2	86400.0 s	36.9 KiB
web.cmp.usercentrics.eu/ui/loader.js	3600.0 s	15.6 KiB
wcs.naver.net/wcslog.js	110.0 s	10.5 KiB
static.hotjar.com/c/hotjar-641144.js?sv=7	60.0 s	10.3 KiB
static.preply.com/ds/fonts/google/s/figtree/v5/_Xms-HUzqDCFdgfMm4S9DaRvzig.woff2	86400.0 s	20.3 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
s.axon.ai/pixel.js	3600.0 s	8.4 KiB
js-eu1.hsadspixel.net/pixels.js	600.0 s	3.9 KiB
res4.applovin.com/p/l/loader.iife.js	3600.0 s	2.7 KiB
js-eu1.hs-scripts.com/25667276.js	0.0 ms	1.1 KiB
app.usercentrics.eu/session/1px.png?settingsId=2s8O77zayyT9NF	1800.0 s	1.0 KiB
res4.applovin.com/p/104/hs/hs.iife.js	3600.0 s	1.1 KiB
/collect?v=2&fmt=js&pid=5416770&time=1776893672187&url=ht...	0.0 ms	691 B
/rp.gif?ts=1776893672237&id=t2_dw0tt5ho&event=PageVisit&m...	0.0 ms	666 B
/config/com/134f2d23-bb21-4751-9198-e4b344a00667.js?v=3.5...	0.0 ms	459 B
static.preply.com/ds/avatar/default-tokyo-ui.svg	86400.0 s	724 B
/tr/?id=1574367439535888&ev=PageView&dl=https%3A%2F%2Fpre...	0.0 ms	19 B
/tr/?id=1574367439535888&ev=PageView&dl=https%3A%2F%2Fpre...	0.0 ms	16 B

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:49.819 source:map[column:208651 line:1 type:source-location url:https://static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.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:49.819 source:map[column:494459 line:0 type:source-location url:https://static.preply.com/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed085d.js urlProvider:network]] map[reflowTime:0.969 source:map[column:86058 line:20 type:source-location url:https://js-eu1.hs-analytics.net/analytics/1776885600000/25667276.js urlProvider:network]]]

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.styles_heroImageContainer__WgZzy > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H

path: 1,HTML,1,BODY,7,DIV,6,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,IMG

selector: div.styles_heroImageContainer__WgZzy > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H

snippet: <img aria-hidden="true" class="styles-module_image__LAg3H styles-module_on__stMfj" fetchpriority="high" sizes="(min-width: 1298px) 496px, (min-width: 1200px) 446px, (min-width: 1000px) …" srcset="https://preply.com/cdn-cgi/image/format=auto,fit=contain,width=100/https:/…" src="https://preply.com/cdn-cgi/image/format=auto,fit=contain,width=700/https:/…" width="496" height="324" alt="" style="--tx-on: 0px; --ty-on: 0px; --scale-on: 1; --tx-off: 129.45766400000002px;">

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

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

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.

	URL	Resource Size	Est Savings
div.SlideImage_container__yHBbS > div.SlideImage_inner__2UP_8 > div.SlideImage_imageWrapper__9YHpE > img.styles_img__qvNc2 `div.SlideImage_container__yHBbS > div.SlideImage_inner__2UP_8 > div.SlideImage_imageWrapper__9YHpE > img.styles_img__qvNc2`	/cdn-cgi/image/format=auto,fit=contain,width=880/https://...	113.8 KiB	104.6 KiB
div.styles_wrapper__46i5T > div.styles_promoContent__7gRDj > div.styles_promoInnerWrapper__YyEmC > img.styles_imageMobile__ax_32 `div.styles_wrapper__46i5T > div.styles_promoContent__7gRDj > div.styles_promoInnerWrapper__YyEmC > img.styles_imageMobile__ax_32`	/cdn-cgi/image/format=auto,fit=contain,width=880/https://...	68.4 KiB	57.7 KiB
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	36.5 KiB	32.1 KiB
div.styles_heroImageContainer__WgZzy > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_heroImageContainer__WgZzy > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	30.7 KiB	23.4 KiB
Preply-logo `div#uc-main-dialog > div#main-view > header.has-custom-logo > img.logo`	ok14static.oktacdn.com/fs/bco/1/fs08m309j6qMhC1Hi697	9.7 KiB	8.8 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

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: 1.1 s 585.2 KiB

URL	Transfer Size	Est Savings
static.preply.com/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed085d.js	296.9 KiB	136.9 KiB
preply.com/gtm_metrics/?id=G-BQH4D3BLSB&cx=c&gtm=4e64k0	181.1 KiB	66.4 KiB
preply.com/gtm_metrics/?id=AW-598555050&cx=c&gtm=4e64k0	149.5 KiB	61.9 KiB
preply.com/gtm_metrics/?id=AW-924520301&cx=c&gtm=4e64k0	149.9 KiB	56.9 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js	109.1 KiB	54.9 KiB
preply.com/gtm_metrics/?id=GTM-WX3CT5&l=dataLayer	187.9 KiB	54.1 KiB
script.hotjar.com/modules.6a0f3932cb1341a35c18.js	56.1 KiB	35.8 KiB
web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.js	56.0 KiB	35.3 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	30.0 KiB
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	57.9 KiB	28.7 KiB
static.preply.com/static/ssr/_next/static/chunks/main-367989e0b1b8d3ce.js	45.5 KiB	24.2 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.

URL	Total CPU Time	Script Evaluation	Script Parse
Unattributable	1.9 s	156 ms	0.0 ms
preply.com/	1.7 s	31 ms	6.2 ms
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	1.6 s	1.3 s	35 ms
static.preply.com/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed085d.js	1.5 s	916 ms	191 ms
js-eu1.hs-analytics.net/analytics/1776885600000/25667276.js	1.2 s	842 ms	23 ms
preply.com/gtm_metrics/?id=GTM-WX3CT5&l=dataLayer	1.0 s	890 ms	119 ms
web.cmp.usercentrics.eu/ui/v/3.117.0/GdprCmpController.c4576b71.js	716 ms	699 ms	5.0 ms
web.cmp.usercentrics.eu/ui/v/3.117.0/WebSdk.lib.4c6726a9.js	512 ms	394 ms	49 ms
preply.com/gtm_metrics/?id=G-BQH4D3BLSB&cx=c&gtm=4e64k0	386 ms	292 ms	89 ms
preply.com/gtm_metrics/?id=AW-598555050&cx=c&gtm=4e64k0	357 ms	236 ms	67 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js	355 ms	275 ms	77 ms
res4.applovin.com/p/104/b/bs.c9e1074f5b3f9fc8ea15d152add07294-1.iife.js	343 ms	319 ms	15 ms
preply.com/gtm_metrics/?id=AW-924520301&cx=c&gtm=4e64k0	303 ms	226 ms	75 ms
/signals/config/1574367439535888?v=2.9.303&r=stable&domai...	269 ms	236 ms	31 ms
script.hotjar.com/modules.6a0f3932cb1341a35c18.js	257 ms	205 ms	45 ms
connect.facebook.net/en_US/fbevents.js	234 ms	168 ms	61 ms
scripts.clarity.ms/0.8.59/clarity.js	225 ms	210 ms	13 ms
static.preply.com/static/ssr/_next/static/chunks/main-367989e0b1b8d3ce.js	161 ms	134 ms	26 ms
js-eu1.hubspot.com/web-interactives-embed.js	148 ms	123 ms	16 ms
web.cmp.usercentrics.eu/ui/v/3.117.0/UcGdprCmpView.b05dbc41.js	146 ms	68 ms	13 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js	145 ms	117 ms	23 ms
sc-static.net/scevent.min.js	138 ms	122 ms	9.4 ms
js-eu1.usemessages.com/conversations-embed.js	132 ms	101 ms	29 ms
www.redditstatic.com/ads/pixel.js	127 ms	103 ms	21 ms
static.preply.com/static/ssr/_next/static/chunks/3925-4f52f72f00bc3e52.js	118 ms	96 ms	5.1 ms
static.preply.com/static/ssr/_next/static/chunks/98885.72f8bf57cb93f12f.js	92 ms	88 ms	1.6 ms
web.cmp.usercentrics.eu/ui/v/3.117.0/getToastifyStyle.4f0a73d7.js	79 ms	76 ms	0.7 ms
/static/ssr/_next/static/3HR-VTD3usRfM489z1_Jr/_buildMani...	76 ms	53 ms	22 ms
snap.licdn.com/li.lms-analytics/insight.min.js	69 ms	60 ms	8.8 ms
js-eu1.hs-banner.com/v2/25667276/banner.js	69 ms	56 ms	11 ms
ssl.pstatic.net/melona/libs/gfp-nac-module/synchronizer.js	63 ms	49 ms	11 ms
web.cmp.usercentrics.eu/ui/loader.js	55 ms	33 ms	9.3 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.

Category	Time Spent
Script Evaluation	9.6 s
Other	2.4 s
Style & Layout	1.4 s
Script Parsing & Compilation	1.3 s
Rendering	386 ms
Parse HTML & CSS	270 ms
Garbage Collection	258 ms

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 33.4 KiB

URL	Transfer Size	Est Savings
html{color:#384047;font-size:14px} …	21.2 KiB	19.2 KiB
.overlay { --color-cmp-overlay: #121117; --feature-overlay-opacity: 0.56; } …	15.7 KiB	14.1 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.

URL	Transfer Size
static.preply.com/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed085d.js	297.4 KiB
preply.com/gtm_metrics/?id=GTM-WX3CT5&l=dataLayer	188.2 KiB
preply.com/gtm_metrics/?id=G-BQH4D3BLSB&cx=c&gtm=4e64k0	181.4 KiB
preply.com/	164.2 KiB
preply.com/gtm_metrics/?id=AW-924520301&cx=c&gtm=4e64k0	150.2 KiB
preply.com/gtm_metrics/?id=AW-598555050&cx=c&gtm=4e64k0	149.8 KiB
/cdn-cgi/image/format=auto,fit=contain,width=880/https://...	114.9 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js	109.7 KiB
connect.facebook.net/en_US/fbevents.js	96.6 KiB
/cdn-cgi/image/format=auto,fit=contain,width=880/https://...	68.9 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.styles_wrapper__46i5T > div.styles_promoContent__7gRDj > div.styles_promoInnerWrapper__YyEmC > img.styles_imageMobile__ax_32 `div.styles_wrapper__46i5T > div.styles_promoContent__7gRDj > div.styles_promoInnerWrapper__YyEmC > img.styles_imageMobile__ax_32`	/cdn-cgi/image/format=auto,fit=contain,width=880/https://...
div.styles_storeButtons__tXLiq > div.LayoutGap__FdLKD > button > img `div.styles_storeButtons__tXLiq > div.LayoutGap__FdLKD > button > img`	static.preply.com/static/ssr/_next/static/media/app_store_badge_en.ec6db413.svg
section#footer_app_badges > div.styles_MenuList__sCQYV > button > img `section#footer_app_badges > div.styles_MenuList__sCQYV > button > img`	static.preply.com/static/ssr/_next/static/media/app_store_badge_en.ec6db413.svg

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

●Font display

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 25 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 260 ms

●Server Backend Latencies 170 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 40 ms

○INP breakdown

○Avoid non-composited animations

○Avoid large layout shifts

Accessibility

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

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.LayoutGap__FdLKD > div.styles_storeButtons__tXLiq > div.LayoutGap__FdLKD > button `div.LayoutGap__FdLKD > div.styles_storeButtons__tXLiq > div.LayoutGap__FdLKD > button`
div.styles_FooterInner__93q_C > section#footer_app_badges > div.styles_MenuList__sCQYV > button `div.styles_FooterInner__93q_C > section#footer_app_badges > div.styles_MenuList__sCQYV > button`

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.

○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

●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

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●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

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○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.

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.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)
div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H `div.styles_layoutImage__BBAiG > div.LayoutGap__FdLKD > div.styles-module_container__yaJag > img.styles-module_image__LAg3H`	/cdn-cgi/image/format=auto,fit=contain,width=700/https://...	249 x 330 (0.75)	700 x 967 (0.72)

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 / Warning	Source
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	`Uncaught Error: Minified React error #421; visit https://reactjs.org/docs/error-decoder.html?invariant=421 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`

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.

●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

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

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 destination	Link Text
termsofuse.preply.com/terms_of_use/en_CookiePolicy.pdf	here

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

URL	Map URL
static.preply.com/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed085d.js	/static/ssr/_next/static/chunks/pages/_app-a6625414c9ed08...
preply.com/gtm_metrics/?id=GTM-WX3CT5&l=dataLayer
preply.com/gtm_metrics/?id=G-BQH4D3BLSB&cx=c&gtm=4e64k0
static.preply.com/static/ssr/_next/static/chunks/webpack-7ef43192e514f60e.js	static.preply.com/static/ssr/_next/static/chunks/webpack-7ef43192e514f60e.js.map
static.preply.com/static/ssr/_next/static/chunks/pages/home-b677899bc81f7f71.js	/static/ssr/_next/static/chunks/pages/home-b677899bc81f7f...
static.preply.com/static/ssr/_next/static/chunks/main-367989e0b1b8d3ce.js	static.preply.com/static/ssr/_next/static/chunks/main-367989e0b1b8d3ce.js.map
static.preply.com/static/ssr/_next/static/chunks/framework-14b53c77301a6553.js	/static/ssr/_next/static/chunks/framework-14b53c77301a655...
static.preply.com/static/ssr/_next/static/chunks/98885.72f8bf57cb93f12f.js	static.preply.com/static/ssr/_next/static/chunks/98885.72f8bf57cb93f12f.js.map
static.preply.com/static/ssr/_next/static/chunks/96879-9a7e2b3e4bbf3e0f.js	static.preply.com/static/ssr/_next/static/chunks/96879-9a7e2b3e4bbf3e0f.js.map
static.preply.com/static/ssr/_next/static/chunks/95367-be44f6c62638ccbe.js	static.preply.com/static/ssr/_next/static/chunks/95367-be44f6c62638ccbe.js.map
static.preply.com/static/ssr/_next/static/chunks/95059-5ce754634a0d9520.js	static.preply.com/static/ssr/_next/static/chunks/95059-5ce754634a0d9520.js.map
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js-eu1.usemessages.com/conversations-embed.js	static.hsappstatic.net/conversations-embed/static-1.26137/bundles/project.js.map
js-eu1.hsadspixel.net/pixels.js	/adsscriptloaderstatic/static-1.3043/bundles/pixels-relea...