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
ensighten.norton.com/symantec/aemprod/Bootstrap.js	300.0 s	87.3 KiB
/content/dam/norton-adobe-analytics/prod/s_code_norton_mi...	1.0 s	26.5 KiB
/etc.clientlibs/norton/clientlibs/generated/templates/t-b...	900.0 s	14.8 KiB
s.go-mpulse.net/boomerang/MDDJR-3RVW8-S3M46-HL4QS-RLVQ4	604800.0 s	59.6 KiB
/etc.clientlibs/norton/clientlibs/generated/components/au...	900.0 s	5.9 KiB
/etc.clientlibs/norton/clientlibs/generated/components/sl...	900.0 s	3.6 KiB
es.norton.com/content/dam/norton/logo/logo_norton_d.svg	0.0 ms	2.7 KiB
es.norton.com/content/dam/norton/cb/trustpilot_logo_gr_blk.svg	900.0 s	2.6 KiB
/etc.clientlibs/norton/clientlibs/generated/components/co...	900.0 s	2.4 KiB
/etc.clientlibs/norton/clientlibs/generated/components/te...	900.0 s	1.7 KiB
/etc.clientlibs/norton/clientlibs/generated/components/te...	900.0 s	1.6 KiB
es.norton.com/content/dam/norton/icon/icon_myaccount.svg	0.0 ms	1.3 KiB
/etc.clientlibs/norton/clientlibs/generated/components/fo...	900.0 s	1.4 KiB
/etc.clientlibs/norton/clientlibs/generated/components/su...	900.0 s	1.3 KiB
/etc.clientlibs/norton/clientlibs/generated/components/pr...	900.0 s	1.2 KiB
/etc.clientlibs/norton/clientlibs/generated/components/le...	900.0 s	1.1 KiB
/etc.clientlibs/norton/clientlibs/generated/components/ba...	900.0 s	1.1 KiB
es.norton.com/content/dam/norton/cb/icon_trustpilot_stars_4.5.svg	900.0 s	1.0 KiB
es.norton.com/content/dam/norton/icon/flag/icon_flag_spain.svg	0.0 ms	908 B
/etc.clientlibs/norton/clientlibs/generated/components/he...	900.0 s	899 B
es.norton.com/content/dam/norton/cb/green-check-16x12.svg	0.0 ms	769 B
es.norton.com/content/dam/norton/cb/blue-check.svg	900.0 s	716 B
assets.adobedtm.com/launch-EN1cc7556280444b10a3c687a73ed01baa.min.js	3600.0 s	0 B
/etc.clientlibs/norton/clientlibs/generated/templates/t-b...	900.0 s	0 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:38.258 source:map[type:text value:[unattributed]]]]

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

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.

URL	Est Savings
/etc.clientlibs/norton/clientlibs/generated/resources/int...	15 ms

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#superhero-d126989bc2 > div.c-superhero__image-area > picture > img `div#superhero-d126989bc2 > div.c-superhero__image-area > picture > img`	/content/dam/norton/backgrounds/advanced-norton-homepage-...	62.9 KiB	8.2 KiB

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

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.5 s

URL	Time Spent
norton.com/	1.2 s
www.norton.com/	1.3 s
es.norton.com/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 450 ms 52.9 KiB

URL	Transfer Size	Est Savings
s.go-mpulse.net/boomerang/MDDJR-3RVW8-S3M46-HL4QS-RLVQ4	59.4 KiB	26.8 KiB
ensighten.norton.com/symantec/aemprod/Bootstrap.js	86.8 KiB	26.1 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.

URL	Total CPU Time	Script Evaluation	Script Parse
ensighten.norton.com/symantec/aemprod/Bootstrap.js	1.3 s	1.2 s	38 ms
es.norton.com/	1.1 s	56 ms	12 ms
Unattributable	333 ms	8.6 ms	0.0 ms
assets.adobedtm.com/launch-EN1cc7556280444b10a3c687a73ed01baa.min.js	323 ms	289 ms	15 ms
/etc.clientlibs/norton/clientlibs/generated/components/pr...	98 ms	30 ms	2.2 ms
s.go-mpulse.net/boomerang/MDDJR-3RVW8-S3M46-HL4QS-RLVQ4	78 ms	33 ms	18 ms
/etc.clientlibs/norton/clientlibs/generated/templates/t-b...	75 ms	57 ms	3.8 ms
/content/dam/norton-adobe-analytics/prod/s_code_norton_mi...	69 ms	61 ms	7.3 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	1.9 s
Style & Layout	588 ms
Other	585 ms
Rendering	285 ms
Script Parsing & Compilation	119 ms
Parse HTML & CSS	86 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 reason	Failure type
The page has an unload handler in the main frame.	Actionable

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
Norton 360 Advanced `div.c-bait__container > div.c-bait__image-container > picture.c-bait__picture > img.c-image__img`	es.norton.com/content/dam/norton/features/en/img_scam_protection_pro_us_m_2x.jpg
Norton VPN `div.c-bait__container > div.c-bait__image-container > picture.c-bait__picture > img.c-image__img`	/content/dam/norton/features/en/row_image_norton_secure_v...
div#superhero-c99b7d5ced > div.c-superhero__image-area > picture > img `div#superhero-c99b7d5ced > div.c-superhero__image-area > picture > img`	/content/dam/norton/backgrounds/hero/img_hp_hero_girl_loo...
div#superhero-d78d3d6921 > div.c-superhero__image-area > picture > img `div#superhero-d78d3d6921 > div.c-superhero__image-area > picture > img`	/content/dam/norton/backgrounds/hero/ROW-VPN-carousel-375...
div#superhero-d126989bc2 > div.c-superhero__image-area > picture > img `div#superhero-d126989bc2 > div.c-superhero__image-area > picture > img`	/content/dam/norton/backgrounds/advanced-norton-homepage-...
TrustPilot Logo `div#trustpilot-48dc50ea25 > a.c-trustpilot__container-link > div.c-trustpilot__right-section > img.c-trustpilot__logo-image`	es.norton.com/content/dam/norton/cb/trustpilot_logo_gr_blk.svg
Average Star Rating `div#trustpilot-48dc50ea25 > a.c-trustpilot__container-link > div.c-trustpilot__left-section > img.c-trustpilot__score-image`	es.norton.com/content/dam/norton/cb/icon_trustpilot_stars_4.5.svg
Logotipo de Norton `div.c-topnav__wrap > a.c-topnav__norton > picture > img.c-topnav__norton__img`	es.norton.com/content/dam/norton/logo/logo_norton_d.svg
Mi cuenta `li.c-topnav__navitem__myaccount > button.btn-account > span > img`	es.norton.com/content/dam/norton/icon/icon_myaccount.svg
Mi cuenta `div.c-topnav__backmenu > button.c-topnav__backmenu__label > span > img`	es.norton.com/content/dam/norton/icon/icon_myaccount.svg
Norton España `div.c-topnav__footer > div.c-topnav__footer-content > button.c-country-selector__btn > img`	es.norton.com/content/dam/norton/icon/flag/icon_flag_spain.svg
Twitter `div.c-footer__container > div.c-footer__socialitems > a.c-footer__socialitems__item > img.c-footer__socialitems__image`
Instagram `div.c-footer__container > div.c-footer__socialitems > a.c-footer__socialitems__item > img.c-footer__socialitems__image`
Facebook `div.c-footer__container > div.c-footer__socialitems > a.c-footer__socialitems__item > img.c-footer__socialitems__image`
YouTube `div.c-footer__container > div.c-footer__socialitems > a.c-footer__socialitems__item > img.c-footer__socialitems__image`
Gen Digital Inc. `div.c-footer__copyright > a.c-footer__copyright__logolink > picture.c-footer__copyright__picture > img.c-footer__copyright__image`

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●Avoids enormous network payloads Total size was 682 KiB

●User Timing marks and measures 18 user timings

●Avoid long main-thread tasks 10 long tasks found

●Avoid non-composited animations 29 animated elements found

●Network Requests

●Network Round Trip Times 150 ms

●Server Backend Latencies 220 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 30 ms

○INP breakdown

○LCP request discovery

○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.

ARIA

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Hemos actualizado nuestra política de privacidad y de cookies Usamos cookies e… `section > div#ensNotifyBanner > div#ensBannerDescription > div.gdpModalDialog`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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.contentreference > header#topnav-a424a90a9a > div.c-topnav__wrap > button.c-topnav__hamburger `div.contentreference > header#topnav-a424a90a9a > div.c-topnav__wrap > button.c-topnav__hamburger`
nav.c-topnav__navsec > div.c-topnav__navsec__lt-col > div.c-topnav__backmenu > button.c-topnav__backmenu__close `nav.c-topnav__navsec > div.c-topnav__navsec__lt-col > div.c-topnav__backmenu > button.c-topnav__backmenu__close`
li.is-L2 > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close `li.is-L2 > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close`
li.is-L2 > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close `li.is-L2 > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close`
li.c-topnav__navitem__myaccount > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close `li.c-topnav__navitem__myaccount > div.c-topnav__navitem__L2 > div.c-topnav__backmenu > button.c-topnav__backmenu__close`
div.glide > div.glide__track > div.c-productpanel-controls > button.c-productpanel-next-control `div.glide > div.glide__track > div.c-productpanel-controls > button.c-productpanel-next-control`
div.glide > div.glide__track > div.glide__bullets > button.glide__bullet `div.glide > div.glide__track > div.glide__bullets > button.glide__bullet`
div.glide > div.glide__track > div.glide__bullets > button.glide__bullet `div.glide > div.glide__track > div.glide__bullets > button.glide__bullet`
div.glide > div.glide__track > div.glide__bullets > button.glide__bullet `div.glide > div.glide__track > div.glide__bullets > button.glide__bullet`
div.glide > div.glide__track > div.glide__bullets > button.glide__bullet `div.glide > div.glide__track > div.glide__bullets > button.glide__bullet`

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.

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
* Información importante sobre suscripciones, precios y ofertas: `div.c-container__body > div.legal > div#legal-74eaeaf988-li-0 > button.t-link`
haz clic aquí `div#ensBannerDescription > div.gdpModalDialog > p > a.privacyCancel`
aviso de cookies `div#ensBannerDescription > div.gdpModalDialog > p > a.gdpParaLink`

These are opportunities to improve the legibility of your content.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Aplicar `div.promocodefield > div#promocodefield-ae138a7d83 > form.c-promocode-field__form > button.c-promocode-field__button`
Aceptar todo `div#ensBannerDescription > div.gdpModalDialog > div.gdpButtons > button.gdpButton`

○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

●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

●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.

●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

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

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○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.

○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

○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

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
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.	ensighten.norton.com/symantec/aemprod/Bootstrap.js line 795, col 189
Unload event listeners are deprecated and will be removed.	/etc.clientlibs/norton/clientlibs/generated/components/to...

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

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
es.norton.com/products/norton-vpn	Empezar
es.norton.com/products/norton-360-advanced	Más información
es.norton.com/products/small-business	Empezar

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`