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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

98

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
bookmakerbonus.it/fonts/inter/inter-v19-latin_latin-ext-700.woff20.0 ms51.5 KiB
bookmakerbonus.it/fonts/inter/inter-v19-latin_latin-ext-600.woff20.0 ms51.5 KiB
bookmakerbonus.it/fonts/inter/inter-v19-latin_latin-ext-regular.woff20.0 ms49.8 KiB
bookmakerbonus.it/dist/assets/app-Bfowl6oO.js0.0 ms46.3 KiB
bookmakerbonus.it/dist/assets/app-3xMsfL_p.css0.0 ms29.5 KiB
bookmakerbonus.it/fonts/swiss/Swiss721BT-BoldCondensed.fae44d5.woff20.0 ms20.9 KiB
/assets/local/Profile-Images/il-team-di-bookmakerbonus-nu...2588400.0 s131.9 KiB
static.hotjar.com/c/hotjar-3327715.js?sv=760.0 s6.7 KiB
/assets/local/Site/lista-bonus-benvenuto-piu-lunga-d-ital...2588400.0 s46.8 KiB
/assets/local/Site/new-design-main-intro/Nuovo-Intro-Bloc...2588400.0 s26.9 KiB
/assets/local/Site/lista-bonus-benvenuto-piu-lunga-d-ital...2588400.0 s8.3 KiB
/assets/local/Company/logos/stanleybet-logo-square.png?au...2588400.0 s3.2 KiB
/assets/local/Company/logos/stanleybet-logo-white.png?aut...2588400.0 s1.9 KiB
/assets/local/icons/Square-Icons/gift-italiangreen-square...2588400.0 s1.3 KiB
/assets/local/icons/Square-Icons/italy-italianblue-gold-s...2588400.0 s537 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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:30.213 source:map[type:text value:[unattributed]]]]

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: Bookmakerbonus: La lista bonus scommesse più affidabile d'Italia La nostra prom…
path: 1,HTML,1,BODY,3,DIV,2,DIV,0,DIV,2,DIV,0,DIV
selector: div#content > div.blocks > div.block > div#target-99
snippet: <div class="bg-primary-600 bg-cover" id="target-99">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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
Il team di bookmakerbonus nuovo design div.space-y-2 > div.block > div.ar > img.lazy
/assets/local/Profile-Images/il-team-di-bookmakerbonus-nu...131.6 KiB113.3 KiB
Abbiamo creato la lista bonus benvenuto più lunga d'Italia div.block > div.order-1 > div.ar > img.lazy
/assets/local/Site/lista-bonus-benvenuto-piu-lunga-d-ital...46.5 KiB32.5 KiB
Anteprima promozionale del nuovo bonus planetwin365 ottobre 2026 div.group > a.space-y-4 > div.ar > img.lazy
/assets/local/Articles/2026-new-design-thumbnails/antepri...30.3 KiB20.2 KiB
Banner lista completa tutti i siti scommesse adm div.block > a > div.ar > img.lazy
/assets/local/Site/banner-lista-completa-tutti-i-siti-sco...39.6 KiB16.6 KiB
Spiegazione bonus benvenuto sport bet365 a.flex > div.w-2/6 > div.ar > img.lazy
/assets/local/Articles/2026-new-design-thumbnails/spiegaz...7.8 KiB4.1 KiB

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
bookmakerbonus.it/dist/assets/app-3xMsfL_p.css29.5 KiB66 ms

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

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: 70 ms 203.2 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-1W8ZR3K0WD&cx=c&gtm=4e6b41159.6 KiB72.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-W23X7ZJ129.5 KiB64.2 KiB
script.hotjar.com/modules.47ae0ae40a423a71e31f.js57.0 KiB38.3 KiB
bookmakerbonus.it/dist/assets/app-Bfowl6oO.js46.1 KiB28.6 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#site > div#footer > div.container-lg > img.lazyload div#site > div#footer > div.container-lg > img.lazyload
/assets/local/Site/New-footer-icons/logo-solo-maggiorenni...
div#site > div#footer > div.container-lg > img.lazyload div#site > div#footer > div.container-lg > img.lazyload
/assets/local/Site/New-footer-icons/nuovo-logo-gioca-senz...
div#footer > div.container-lg > a > img.lazyload div#footer > div.container-lg > a > img.lazyload
/assets/local/Site/New-footer-icons/logo-compliance-g4.sv...
div#footer > div.container-lg > a > img.lazyload div#footer > div.container-lg > a > img.lazyload
/assets/local/Site/New-footer-icons/vecchio-logo-aams-gio...
div#footer > div.container-lg > a > img.lazyload div#footer > div.container-lg > a > img.lazyload
/assets/local/Site/New-footer-icons/logo-adm-nuovo.svg?v=...
div#site > div#footer > div.container-lg > img.lazyload div#site > div#footer > div.container-lg > img.lazyload
/assets/local/Site/New-footer-icons/nuovo-logo-gioco-resp...
div#site > div#footer > div.container-lg > img.lazyload div#site > div#footer > div.container-lg > img.lazyload
/assets/local/Site/New-footer-icons/egr-awards-winner-202...
Gift italiangreen square icon div.space-y-2 > a.group > div.w-10 > img.rounded-l
/assets/local/icons/Square-Icons/gift-italiangreen-square...
Bookmakersbonus new logo div.container-lg > div.flex-grow > a.inline-block > img.h-5
/assets/local/Site/bookmakersbonus-new-logo.svg?v=1770024557
Bookmakersbonus new logo div.container-lg > div.wrapper-6 > a.inline-block > img.h-10
/assets/local/Site/bookmakersbonus-new-logo.svg?v=1770024557
Italy italianblue gold square icon div.space-y-2 > a.group > div.w-10 > img.rounded-l
/assets/local/icons/Square-Icons/italy-italianblue-gold-s...
Mobile phone betting app italianblue new square icon div.space-y-2 > a.group > div.w-10 > img.rounded-l
/assets/local/icons/Square-Icons/mobile-phone-betting-app...

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

●Max Potential First Input Delay 80 ms
●Layout shift culprits
●Document request latency
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Time to Interactive 1.2 s
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Avoids enormous network payloads Total size was 1,525 KiB
●JavaScript execution time 0.2 s
●Minimizes main-thread work 0.7 s
●Avoid long main-thread tasks 3 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 30 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 30 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
81

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
7 ott, 2026 div.group > a.space-y-4 > div.space-y-1 > p.text-xs
8 ott, 2026 div.group > a.flex > div.w-4/6 > p.text-xxs
8 ott, 2026 div.group > a.flex > div.w-4/6 > p.text-xxs
8 ott, 2026 div.group > a.flex > div.w-4/6 > p.text-xxs
8 ott, 2026 div.group > a.flex > div.w-4/6 > p.text-xxs
I migliori bonus scommesse div > div.container-lg > div.flex > button#nav-2067167-1
fino a td.bonusText > div.text > div > i
50% fino a 500€ sport + 20% di lossback fino a 1.000€ td.bonusText > div.text > div > i
+ 500€ in fun bonus Casinò td.bonusText > div.text > div > i
+ 3€ cashback MyCombo td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
50% fino a 100€ BONUS REALE td.bonusText > div.text > div > i
+ 2.000€ Fun Bonus td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
Bonus prima ricarica fino a 100€ td.bonusText > div.text > div > i
+5€ bonus senza deposito td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
100% fino a 50€ td.bonusText > div.text > div > i
+ 2000€ gratis con il codice td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
100% sul primo deposito td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
Offerta di benvenuto per i nuovi clienti. Apri un conto, effettua un versamento… tbody > tr > td.terms > div.conditions
fino a td.bonusText > div.text > div > i
(10€ Senza Deposito + 200 Fun Flag) td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
Bonus prima ricarica fino a 100€ td.bonusText > div.text > div > i
+ 10€ rimborso settimanale td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
Bonus prima ricarica fino a 100€ td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
+ 5.000€ con "Salva il bottino" td.bonusText > div.text > div > i
+ 2.000€ Fun bonus td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
Real Bonus 100% fino a 2.000€ td.bonusText > div.text > div > i
+ 2.000€ gratis con CIE td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
100% primo deposito + 50€ gratis td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
fino a td.bonusText > div.text > div > i
con 100€ Freebet e 10€ senza deposito td.bonusText > div.text > div > i
Verifica div.w-full > div.w-full > div.flex > a.btn
Super Boost div.flex > div.relative > button.btn > span.text-orange-500
5.50 div.relative > a.btn > div.flex > div.line-through
6.00 div.relative > a.btn > div.flex > div.font-semibold
9.1 div.absolute > div.rounded-md > div > span
2.05 div.relative > a.btn > div.flex > div.line-through
2.30 div.relative > a.btn > div.flex > div.font-semibold
12.2 div.absolute > div.rounded-md > div > span
3.15 div.relative > a.btn > div.flex > div.line-through
3.50 div.relative > a.btn > div.flex > div.font-semibold
11.1 div.absolute > div.rounded-md > div > span
2.35 div.relative > a.btn > div.flex > div.line-through
2.60 div.relative > a.btn > div.flex > div.font-semibold
10.6 div.absolute > div.rounded-md > div > span
3.70 div.relative > a.btn > div.flex > div.line-through
4.10 div.relative > a.btn > div.flex > div.font-semibold
10.8 div.absolute > div.rounded-md > div > span
2.85 div.relative > a.btn > div.flex > div.line-through
3.10 div.relative > a.btn > div.flex > div.font-semibold
8.8 div.absolute > div.rounded-md > div > span
1.85 div.relative > a.btn > div.flex > div.line-through
2.10 div.relative > a.btn > div.flex > div.font-semibold
13.5 div.absolute > div.rounded-md > div > span
3.95 div.relative > a.btn > div.flex > div.line-through
4.30 div.relative > a.btn > div.flex > div.font-semibold
8.9 div.absolute > div.rounded-md > div > span
13.00 div.relative > a.btn > div.flex > div.line-through
15.00 div.relative > a.btn > div.flex > div.font-semibold
15.4 div.absolute > div.rounded-md > div > span
3.10 div.relative > a.btn > div.flex > div.line-through
3.40 div.relative > a.btn > div.flex > div.font-semibold
9.7 div.absolute > div.rounded-md > div > span
Conosci il team dietro a Bookmakerbonus div.block > div.container-lg > div.lg:space-y-1 > p.font-serif
Redattore ed esperto di bonus scommesse div.block > div.prose > p > span.blu-emph
Redattore e Account Manager div.block > div.prose > p > span.blu-emph
Website Manager div.block > div.prose > p > span.blu-emph
6 nov, 2026 div > div.flex > div > div.text-xxs
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
3 nov, 2026 div > div.flex > div > div.text-xxs
22 ott, 2026 div > div.flex > div > div.text-xxs
21 ott, 2026 div > div.flex > div > div.text-xxs
Redattore ed esperto di scommesse div.bg-neutral-100 > div.flex > div > div.text-xs
3 nov, 2026 div > div.flex > div > div.text-xxs
3 nov, 2026 div > div.flex > div > div.text-xxs
21 ott, 2026 div > div.flex > div > div.text-xxs
6 nov, 2026 div > div.flex > div > div.text-xxs
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Verifica div.item > div.space-y-2 > div.buttons > a.btn
Offerta di benvenuto per i nuovi clienti. Apri un conto, effettua un versamento… div.container-lg > div.list > div > div.overflow-y-auto
28 ott, 2026 div > div.flex > div > div.text-xxs
28 ott, 2026 div > div.flex > div > div.text-xxs
8 ott, 2026 div > div.flex > div > div.text-xxs
8 ott, 2026 div > div.flex > div > div.text-xxs
Redattore ed esperto di scommesse div.bg-neutral-100 > div.flex > div > div.text-xs
Redattore e Account Manager div.bg-neutral-100 > div.flex > div > div.text-xs
Per saperne di più su di noi → div.blocks > div.block > div.block > a.btn

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Nuovo Bonus Planetwin365: come funziona div.group > a.space-y-4 > div.space-y-1 > h4.title-md
Abbiamo creato la lista bonus benvenuto più lunga d'Italia div.wrapper-4 > div.block > div.order-2 > h5.title-lg
Irene Burillo v Yuliana Lizarazo div.w-full > div.relative > div.relative > h5.text-xs
Scopri Bookmakerbonus Italia div#table > div > div.p-6 > h5.title-xs
COS'È BOOKMAKERBONUS? div#footer > div.container-lg > div.text-white > h6

These are opportunities to improve keyboard navigation in your application.

Names and labels

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
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
td.company > div.h-full > div.h-full > a td.company > div.h-full > div.h-full > a
div#site > div#footer > div.container-lg > a div#site > div#footer > div.container-lg > a
div#site > div#footer > div.container-lg > a div#site > div#footer > div.container-lg > a
div#site > div#footer > div.container-lg > a div#site > div#footer > div.container-lg > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Teniamo d'occhio tutti i bonus dei bookmaker per te Lista completa di tutti i b… div > div.p-6 > div.ml-4 > ol.marker:text-neutral-500

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Lista completa di tutti i bonus benvenuto in Italia ol.marker:text-neutral-500 > ol.space-y-1 > li.ml-3 > a.link
Gli ultimi bonus benvenuto di novembre 2026 ol.marker:text-neutral-500 > ol.space-y-1 > li.ml-3 > a.link
Le promozioni scommesse per chi è già registrato ol.marker:text-neutral-500 > ol.space-y-1 > li.ml-3 > a.link
Le quote maggiorate di oggi con il nostro comparatore ol.marker:text-neutral-500 > ol.space-y-1 > li.ml-3 > a.link

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

Screen readers have features to make navigating tables easier. Ensuring that `<td>` elements in a large table (3 or more cells in width and height) have an associated table header may improve the experience for screen reader users. Learn more about table headers.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Lista migliori bookmaker con bonus scommesse Bonus Requisiti di puntata Quota m… div.relative > div > div.compactList > table.list
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
●Identical links have the same purpose.
●Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○`[role]`s have all required `[aria-*]` attributes
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○`[role]` values are valid
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○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
○`<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.
○Elements with visible text labels have matching accessible names.
96

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
bookmakerbonus.it/ line 4660, col 259
TypeError: Cannot read properties of null (reading 'querySelector') at initializeTabs (https://bookmakerbonus.it/:4661:260) at HTMLDocument.<anonymous> (https://bookmakerbonus.it/:4663:1)
bookmakerbonus.it/ line 4663, col 251
TypeError: Cannot read properties of null (reading 'querySelector') at initializeTabs (https://bookmakerbonus.it/:4664:252) at HTMLDocument.<anonymous> (https://bookmakerbonus.it/:4666:1)
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
○Detected JavaScript libraries
100

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.

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

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