D — https://swiss.com | BeaverCheck Audit

Site Health

Score: 67 / 100

Based on 8 categories, 0 sections

Room to improve — your 20.0s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Solid SEO basics — a few optimizations could boost rankings.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

Missing metadata means poor previews on social media and search.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Apple sites average 73

-6 below average

Better than 1% of Apple sites See full Apple benchmark →

Google Search Console sites average 73

-6 below average

Better than 2% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

Page weighs 13.3 MB (11.0 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

1 image-in-link without alt text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Alt Text Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fswiss.com)](https://beavercheck.com/results/67a44cea-af80-4c0f-9866-0926e21f3356)

HTML

<a href="https://beavercheck.com/results/67a44cea-af80-4c0f-9866-0926e21f3356"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fswiss.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fswiss.com

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 20.0s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.

Your LCP is 20.0s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

1 accessibility issue excludes users who rely on assistive technology.

Could reach Estimate based on resolving critical issues

Return on Investment

CHF 650 investment → CHF 2.45/month returns + CHF 250,000 risk avoided

Payback period: > 2 years First-year ROI: -95%

Investment

CHF 650

5h · 5 findings

Monthly returns

CHF 2.45 /mo

~CHF 29 / year

Bandwidth savings CHF 2.45

Regulatory risk avoided

CHF 250,000

if kept compliant

nDSG/FADP CHF 250,000

CHF 195 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

CHF650

5.0 developer hours at CHF130/hr

Based on Switzerland rates (CHF130/hr)

Quick wins

CHF195 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

CHF /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

CHF 20,836 / month at risk

~CHF 250,029 / year if left unfixed

Compliance Risk

CHF 250,000

nDSG/FADP

Bandwidth Waste

CHF 2.45 /mo

34611.8 MB/mo × 0.071 CHF/GB

Optimize transfer: save ~3.5 MB per page load
Saves CHF 2.45/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

10.58 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

20.05 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

6.87 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.259

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

10.58 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

26.96 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	307.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	21600.0 s	344.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	21600.0 s	264.2 KiB
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	300.0 s	121.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	21600.0 s	167.4 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	79.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/ce4d771e.chunk.js	21600.0 s	117.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/cf106378.chunk.js	21600.0 s	84.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2f085645.chunk.js	21600.0 s	84.2 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	55.0 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	53.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	21600.0 s	74.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/806c3834.chunk.js	21600.0 s	73.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/043f45bb.chunk.js	21600.0 s	66.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/fb2d2b94.chunk.js	21600.0 s	52.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2a615625.chunk.js	21600.0 s	44.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/83d05b10.chunk.js	21600.0 s	37.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	21600.0 s	36.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/707de846.chunk.js	21600.0 s	33.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/0eb5d549.chunk.js	21600.0 s	31.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/989e4325.chunk.js	21600.0 s	19.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/57cf59a3.chunk.js	21600.0 s	14.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/155a58db.chunk.js	21600.0 s	14.5 KiB
www.swiss.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?	14400.0 s	13.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3d77f7d5.chunk.js	21600.0 s	14.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1d25a90e.chunk.js	21600.0 s	13.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/5f0e358f.chunk.js	21600.0 s	13.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/4222fc3f.chunk.js	21600.0 s	12.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/b7469618.chunk.js	21600.0 s	11.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/f6b5a18b.chunk.js	21600.0 s	10.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/84c00550.chunk.js	21600.0 s	9.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/7c0c2ff7.chunk.js	21600.0 s	8.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/125a84da.chunk.js	21600.0 s	7.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/68172297.chunk.js	21600.0 s	7.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/5f8296e9.chunk.js	21600.0 s	7.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/0980613c.chunk.js	21600.0 s	6.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/56c199cf.chunk.js	21600.0 s	5.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/f82f9313.chunk.js	21600.0 s	5.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1340f53e.chunk.js	21600.0 s	4.6 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	2.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/87bdaa02.chunk.js	21600.0 s	4.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1d8fa131.chunk.js	21600.0 s	4.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/39f4b737.chunk.js	21600.0 s	4.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/68db732a.chunk.js	21600.0 s	4.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/a5b5c629.chunk.js	21600.0 s	3.6 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/rum-standalone.js	3600.0 s	2.9 KiB
tags.tiqcdn.com/utag/tiqapp/utag.currency.js?utv=ut4.46.20260415220309	300.0 s	2.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/291f5a73.chunk.js	21600.0 s	2.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/18bd621f.chunk.js	21600.0 s	2.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/eedbe3a4.chunk.js	21600.0 s	1.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/da6c70b1.chunk.js	21600.0 s	890 B
/utag/tiqapp/utag.v.js?a=lufthansa/lx-main/202604061108&c...	300.0 s	431 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/711f07d6.chunk.js	21600.0 s	623 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3edbda2c.chunk.js	21600.0 s	593 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/a98b6959.chunk.js	21600.0 s	363 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.259356] map[node:map[boundingRect:map[bottom:1919 height:806 left:22 right:390 top:1113 width:368] lhId:page-17-DIV nodeLabel:Explore the world Discover worldwide offers for your next journey with SWISS Br… path:1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,5,DIV selector:div.contentpage > div.content-wrapper > div.container-content > div.twocolumn snippet:<div class="twocolumn column event"> type:node] score:0.258375] map[node:map[boundingRect:map[bottom:498 height:20 left:53 right:357 top:478 width:304] lhId:page-20-DIV nodeLabel:Amsterdam - Schiphol path:1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,2,DIV,0,DIV,0,SECTION,1,DIV,0,DIV,0,DIV,0,DIV,0,FORM,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,INPUT,a,#document-fragment,1,DIV selector:div snippet:<div> type:node] score:0.000478] map[node:map[boundingRect:map[bottom:108 height:27 left:306 right:390 top:81 width:84] lhId:page-16-DIV nodeLabel:Login & Registration Navigation path:1,HTML,1,BODY,4,DIV,3,HEADER,1,DIV,1,DIV,1,DIV,0,DIV selector:div.common-header > div.common-header-wrapper > div.common-header-nav-wrap > div.common-header-meta-links snippet:<div class="common-header-meta-links align-items-center justify-content-end d-flex"> type:node] score:0.000318 subItems:map[items:[map[cause:Unsized image element]] type:subitems]] map[node:map[boundingRect:map[bottom:803 height:1 left:22 right:390 top:802 width:368] lhId:page-19-DIV nodeLabel:div.divider path:1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,2,DIV,0,DIV,0,MAUI-DIVIDER,a,#document-fragment,1,DIV selector:div.divider snippet:<div role="presentation" class=" divider maui lx "> type:node] score:0.000185]]

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.

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
/digitalhangar/design-system/releases/v1.26.2/standalone/...	105 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	105 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:0.244 source:map[type:text value:[unattributed]]] map[reflowTime:13.283 source:map[column:14 line:67323 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]] map[reflowTime:16.346 source:map[column:16 line:67708 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]] map[reflowTime:5.483 source:map[column:23 line:67410 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
427256349 `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/7/c-373574264-...	228.8 KiB	217.9 KiB
div.moving-image > div.w-100 > figure > img.w-100 `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/header-images--homepage/mobile--he...	274.9 KiB	209.1 KiB
166015743 `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/4/c-1125997604...	147.4 KiB	137.8 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/fareteaserdynamic/Destinati...	147.9 KiB	130.6 KiB
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/9/c-993297045-...	123.0 KiB	115.1 KiB
At the hotel `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/10/c-183986234...	104.3 KiB	97.6 KiB
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/6/c-2046679427...	97.1 KiB	90.9 KiB
div.teaser > a.teaser > div.image-wrapper > img `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/local_images/profile/LX048_Travel_...	91.5 KiB	85.6 KiB
SWISS Business `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/3/c-1411859553...	89.6 KiB	83.8 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/fra-square.jpg....	51.1 KiB	33.8 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/tia-square.jpg....	39.4 KiB	22.1 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/sha-square.jpg....	39.1 KiB	21.8 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/ath-square.jpg....	37.2 KiB	19.9 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/muc-square.jpg....	36.5 KiB	19.2 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/bkk-square.jpg....	30.8 KiB	13.5 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/zrh-square.jpg....	25.3 KiB	8.0 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:229.854 label:Time to first byte subpart:timeToFirstByte] map[duration:2804.926 label:Resource load delay subpart:resourceLoadDelay] map[duration:33.785 label:Resource load duration subpart:resourceLoadDuration] map[duration:77.523 label:Element render delay subpart:elementRenderDelay]]

lhId: page-1-IMG

nodeLabel: div.moving-image > div.w-100 > figure > img.w-100

path: 1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,FIGURE,0,IMG

selector: div.moving-image > div.w-100 > figure > img.w-100

snippet: <img src="https://www.swiss.com/content/dam/lx/images/header-images--homepage/mobile…" srcset="/content/dam/lx/images/header-images--homepage/mobile--header-images/Heade…" alt="" class="w-100 h-100 object-cover">

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-1-IMG

nodeLabel: div.moving-image > div.w-100 > figure > img.w-100

path: 1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,FIGURE,0,IMG

selector: div.moving-image > div.w-100 > figure > img.w-100

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

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.

URL	Transfer Size	Duration
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/app.9db74c82.css	124.4 KiB	754 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	36.7 KiB	302 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	2.8 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.

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: 1.6 s

URL	Time Spent
swiss.com/	796 ms
www.swiss.com/	785 ms
www.swiss.com/nl/en/homepage	0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Explore the world Discover worldwide offers for your next journey with SWISS Br… `div.contentpage > div.content-wrapper > div.container-content > div.twocolumn`	0.258
Amsterdam - Schiphol `div`	0.000
Login & Registration Navigation `div.common-header > div.common-header-wrapper > div.common-header-nav-wrap > div.common-header-meta-links`	0.000
div.divider `div.divider`	0.000

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: 450 ms 96.7 KiB

URL	Transfer Size	Est Savings
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.3 KiB	74.9 KiB
inline: // Copyright 2022 The Chromium Authors …	55.4 KiB	21.8 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: 900 ms 154.1 KiB

URL	Transfer Size	Est Savings
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/app.9db74c82.css	123.4 KiB	119.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	36.5 KiB	34.9 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 4.2 s 844.1 KiB

URL	Transfer Size	Est Savings
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	343.3 KiB	168.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	166.6 KiB	150.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	262.3 KiB	134.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/ce4d771e.chunk.js	117.5 KiB	76.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	74.7 KiB	47.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/fb2d2b94.chunk.js	52.1 KiB	45.0 KiB
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	118.7 KiB	44.1 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.3 KiB	42.7 KiB
chromewebdata/	55.4 KiB	39.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/043f45bb.chunk.js	66.0 KiB	33.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/806c3834.chunk.js	73.5 KiB	33.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2f085645.chunk.js	83.3 KiB	30.0 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
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	8.8 s	8.2 s	7.9 ms
Unattributable	4.3 s	267 ms	0.0 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	2.9 s	2.3 s	20 ms
www.swiss.com/nl/en/homepage	1.7 s	148 ms	21 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	999 ms	171 ms	2.0 ms
shop.swiss.com/booking/api/prefetch	739 ms	547 ms	7.3 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3d77f7d5.chunk.js	524 ms	364 ms	0.4 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/57cf59a3.chunk.js	470 ms	450 ms	0.5 ms
www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	379 ms	361 ms	4.7 ms
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	327 ms	190 ms	87 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/app.9db74c82.css	161 ms	0.0 ms	0.0 ms
chromewebdata/	113 ms	28 ms	49 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/5f0e358f.chunk.js	80 ms	76 ms	0.3 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	73 ms	0.0 ms	0.0 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	13.2 s
Other	5.7 s
Style & Layout	1.5 s
Parse HTML & CSS	453 ms
Rendering	388 ms
Garbage Collection	303 ms
Script Parsing & Compilation	253 ms

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
shop.swiss.com/statics/applications/booking/dist/28.4.0/main.4d687217bc3a6020.js	1.2 MiB
shop.swiss.com/statics/applications/booking/dist/28.4.0/design-system.css	546.5 KiB
/statics/applications/booking/dist/28.4.0/styles.822831b2...	508.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	344.9 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.4 KiB
/content/dam/lx/images/header-images--homepage/mobile--he...	276.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	264.2 KiB
shop.swiss.com/statics/applications/booking/dist/28.4.0/5817.788550406a51b1d3.js	262.9 KiB
/content/dam/lx/images/frontify_variations/7/c-373574264-...	229.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	167.4 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
SWISS Business `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/3/c-1411859553...
At the hotel `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/10/c-183986234...
427256349 `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/7/c-373574264-...
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/9/c-993297045-...
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/6/c-2046679427...
div.teaser > a.teaser > div.image-wrapper > img `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/local_images/profile/LX048_Travel_...
Homepage `div.py-7 > div.grid-col-3 > maui-navigation-link > img.swiss-footer-logo`	www.swiss.com/etc/designs/lx/clientlib-all/vite/img/star-alliance.svg

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

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 20 ms

●Server Backend Latencies 290 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

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

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#cm-consentDesc > div.checkBoxOption > label#ck_4_label > span#checkmark_ck_4 `div#cm-consentDesc > div.checkBoxOption > label#ck_4_label > span#checkmark_ck_4`

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

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Settings We use cookies and similar technologies that are necessary to… `body.maui-theme-lx > div#__tealiumGDPRcpPrefs > div#cm-dial-v211`

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.

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
Route network `div.teaser > a.teaser > div.card-content > h4.heading-copytext-large`

These are opportunities to improve keyboard navigation in your application.

○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

●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

●`[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.

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

●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

●Elements with the `role=text` attribute do not have focusable descendents.

●ARIA toggle fields have accessible names

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

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

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

●Links 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.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements 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

○No form fields have multiple labels

○`<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

○Links are distinguishable without relying on color.

○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

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
SharedStorage	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.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
api.travelid.swiss.com/v1/user/me/loginstatus	`Failed to load resource: the server responded with a status of 401 ()`
	`Framing 'https://shop.swiss.com/' violates the following Content Security Policy directive: "frame-ancestors 'self'". The request has been blocked.`

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

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	Map URL
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/cf106378.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js
/digitalhangar/design-system/releases/v1.26.2/standalone/...
chromewebdata/	chromewebdata/neterror.rollup.js.map

●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

●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

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.42 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.14 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.52 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.078

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.21 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.21 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	307.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	21600.0 s	344.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	21600.0 s	264.1 KiB
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	300.0 s	121.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	21600.0 s	166.6 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	79.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/ce4d771e.chunk.js	21600.0 s	117.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/cf106378.chunk.js	21600.0 s	84.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2f085645.chunk.js	21600.0 s	83.5 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	54.3 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	53.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	21600.0 s	74.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/806c3834.chunk.js	21600.0 s	73.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/043f45bb.chunk.js	21600.0 s	67.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/fb2d2b94.chunk.js	21600.0 s	52.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2a615625.chunk.js	21600.0 s	44.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/83d05b10.chunk.js	21600.0 s	37.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	21600.0 s	36.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/707de846.chunk.js	21600.0 s	33.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/0eb5d549.chunk.js	21600.0 s	31.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/989e4325.chunk.js	21600.0 s	19.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/155a58db.chunk.js	21600.0 s	14.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1d25a90e.chunk.js	21600.0 s	14.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3d77f7d5.chunk.js	21600.0 s	14.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/57cf59a3.chunk.js	21600.0 s	13.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/5f0e358f.chunk.js	21600.0 s	13.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/4222fc3f.chunk.js	21600.0 s	12.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/b7469618.chunk.js	21600.0 s	12.5 KiB
www.swiss.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?	14400.0 s	11.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/f6b5a18b.chunk.js	21600.0 s	10.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/7c0c2ff7.chunk.js	21600.0 s	9.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/84c00550.chunk.js	21600.0 s	9.6 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/125a84da.chunk.js	21600.0 s	7.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/68172297.chunk.js	21600.0 s	7.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/5f8296e9.chunk.js	21600.0 s	7.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/0980613c.chunk.js	21600.0 s	7.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/56c199cf.chunk.js	21600.0 s	5.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1340f53e.chunk.js	21600.0 s	5.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/f82f9313.chunk.js	21600.0 s	5.3 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	300.0 s	2.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/39f4b737.chunk.js	21600.0 s	4.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/1d8fa131.chunk.js	21600.0 s	4.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/87bdaa02.chunk.js	21600.0 s	4.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/68db732a.chunk.js	21600.0 s	4.1 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/rum-standalone.js	3600.0 s	2.9 KiB
tags.tiqcdn.com/utag/tiqapp/utag.currency.js?utv=ut4.46.20260415220339	300.0 s	2.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/a5b5c629.chunk.js	21600.0 s	3.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/291f5a73.chunk.js	21600.0 s	3.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/18bd621f.chunk.js	21600.0 s	2.5 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/eedbe3a4.chunk.js	21600.0 s	1.8 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/da6c70b1.chunk.js	21600.0 s	878 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3edbda2c.chunk.js	21600.0 s	685 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/711f07d6.chunk.js	21600.0 s	678 B
/utag/tiqapp/utag.v.js?a=lufthansa/lx-main/202604061108&c...	300.0 s	430 B
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/a98b6959.chunk.js	21600.0 s	270 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.

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
/digitalhangar/design-system/releases/v1.26.2/standalone/...	25 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	20 ms

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:2.067 source:map[column:16 line:67722 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.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:54.247 source:map[type:text value:[unattributed]]] map[reflowTime:14.433 source:map[column:14 line:67323 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]] map[reflowTime:9.88 source:map[column:16 line:67708 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]] map[reflowTime:6.271 source:map[column:23 line:67410 type:source-location url:https://www.swiss.com/digitalhangar/design-system/releases/v1.26.2/standalone/packages/maui-design-system.js urlProvider:network]] map[reflowTime:3.113 source:map[column:171 line:0 type:source-location url: urlProvider:network]] map[reflowTime:5.386 source:map[column:3422 line:0 type:source-location url: urlProvider:network]] map[reflowTime:2.458 source:map[column:1438 line:0 type:source-location url:https://www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js urlProvider:network]] map[reflowTime:1.68 source:map[column:3350 line:3 type:source-location url:https://www.swiss.com/etc/designs/lx/clientlib-all/vite/js/app.ce522133.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
427256349 `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/7/c-373574264-...	228.8 KiB	222.7 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/fareteaserdynamic/Destinati...	147.9 KiB	130.3 KiB
166015743 `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/4/c-1125997604...	147.4 KiB	124.3 KiB
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/9/c-993297045-...	123.0 KiB	118.6 KiB
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/6/c-2046679427...	97.1 KiB	93.7 KiB
div.teaser > a.teaser > div.image-wrapper > img `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/local_images/profile/LX048_Travel_...	91.5 KiB	88.2 KiB
At the hotel `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/10/c-183986234...	104.3 KiB	88.1 KiB
div.moving-image > div.w-100 > figure > img.w-100 `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/header-images--homepage/desktop--h...	186.9 KiB	84.9 KiB
SWISS Business `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/3/c-1411859553...	89.6 KiB	75.7 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/fra-square.jpg....	51.1 KiB	33.5 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/tia-square.jpg....	39.4 KiB	21.7 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/sha-square.jpg....	39.1 KiB	21.4 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/ath-square.jpg....	37.2 KiB	19.5 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/muc-square.jpg....	36.5 KiB	18.8 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/bkk-square.jpg....	30.8 KiB	13.1 KiB
div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img `div.fareteaser-recommendation-image > div.image-wrapper > maui-image > img`	/content/dam/lx/images/offers/destination/zrh-square.jpg....	25.3 KiB	7.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:228.975 label:Time to first byte subpart:timeToFirstByte] map[duration:3032.912 label:Resource load delay subpart:resourceLoadDelay] map[duration:32.208 label:Resource load duration subpart:resourceLoadDuration] map[duration:154.735 label:Element render delay subpart:elementRenderDelay]]

lhId: page-7-IMG

nodeLabel: div.moving-image > div.w-100 > figure > img.w-100

path: 1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,FIGURE,0,IMG

selector: div.moving-image > div.w-100 > figure > img.w-100

snippet: <img src="https://www.swiss.com/content/dam/lx/images/header-images--homepage/deskto…" srcset="/content/dam/lx/images/header-images--homepage/desktop--header-images/high…" alt="" class="w-100 h-100 object-cover">

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-7-IMG

nodeLabel: div.moving-image > div.w-100 > figure > img.w-100

path: 1,HTML,1,BODY,4,DIV,5,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,FIGURE,0,IMG

selector: div.moving-image > div.w-100 > figure > img.w-100

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.

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

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.

URL	Transfer Size	Duration
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/app.9db74c82.css	123.6 KiB	122 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	2.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	36.7 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 476 ms

URL	Time Spent
swiss.com/	244 ms
www.swiss.com/	233 ms
www.swiss.com/nl/en/homepage	0.0 ms

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.

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

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: 80 ms 96.8 KiB

URL	Transfer Size	Est Savings
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.8 KiB	75.0 KiB
inline: // Copyright 2022 The Chromium Authors …	55.4 KiB	21.8 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: 120 ms 151.8 KiB

URL	Transfer Size	Est Savings
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/app.9db74c82.css	123.4 KiB	117.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/css/index.5aNb6p1H.css	36.5 KiB	34.0 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 480 ms 844.8 KiB

URL	Transfer Size	Est Savings
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	343.3 KiB	168.4 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	166.6 KiB	150.0 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	262.3 KiB	134.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/ce4d771e.chunk.js	117.5 KiB	76.2 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	74.7 KiB	47.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/fb2d2b94.chunk.js	52.1 KiB	45.0 KiB
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	118.7 KiB	44.1 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.8 KiB	42.8 KiB
chromewebdata/	55.4 KiB	39.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/043f45bb.chunk.js	66.0 KiB	33.7 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/806c3834.chunk.js	73.5 KiB	33.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/2f085645.chunk.js	83.3 KiB	30.0 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
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	2.1 s	2.0 s	2.2 ms
Unattributable	1.3 s	76 ms	0.0 ms
/digitalhangar/design-system/releases/v1.26.2/standalone/...	730 ms	595 ms	5.3 ms
www.swiss.com/nl/en/homepage	580 ms	25 ms	4.8 ms
shop.swiss.com/booking/api/prefetch	218 ms	152 ms	1.7 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/32e58ef6.chunk.js	171 ms	15 ms	0.5 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/57cf59a3.chunk.js	155 ms	152 ms	0.1 ms
www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	121 ms	115 ms	1.1 ms
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/3d77f7d5.chunk.js	111 ms	83 ms	0.1 ms
tags.tiqcdn.com/utag/lufthansa/lx-main/prod/utag.js	92 ms	58 ms	22 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	3.3 s
Other	1.7 s
Style & Layout	375 ms
Rendering	127 ms
Parse HTML & CSS	116 ms
Garbage Collection	100 ms
Script Parsing & Compilation	67 ms

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
shop.swiss.com/statics/applications/booking/dist/28.4.0/main.4d687217bc3a6020.js	1.2 MiB
shop.swiss.com/statics/applications/booking/dist/28.4.0/design-system.css	546.5 KiB
/statics/applications/booking/dist/28.4.0/styles.822831b2...	508.3 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js	344.9 KiB
/digitalhangar/design-system/releases/v1.26.2/standalone/...	307.9 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js	264.1 KiB
shop.swiss.com/statics/applications/booking/dist/28.4.0/5817.788550406a51b1d3.js	262.9 KiB
/content/dam/lx/images/frontify_variations/7/c-373574264-...	230.1 KiB
/content/dam/lx/images/header-images--homepage/desktop--h...	188.1 KiB
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js	166.6 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
SWISS Business `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/3/c-1411859553...
At the hotel `div.moving-image > div.w-100 > figure > img.w-100`	/content/dam/lx/images/frontify_variations/10/c-183986234...
427256349 `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/7/c-373574264-...
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/9/c-993297045-...
At the hotel `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/frontify_variations/6/c-2046679427...
div.teaser > a.teaser > div.image-wrapper > img `div.teaser > a.teaser > div.image-wrapper > img`	/content/dam/lx/images/local_images/profile/LX048_Travel_...
Homepage `div.py-7 > div.grid-col-3 > maui-navigation-link > img.swiss-footer-logo`	www.swiss.com/etc/designs/lx/clientlib-all/vite/img/star-alliance.svg

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

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Avoid long main-thread tasks 17 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 20 ms

●Server Backend Latencies 330 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

●Avoid large layout shifts 11 layout shifts found

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

Accessibility

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#cm-consentDesc > div.checkBoxOption > label#ck_4_label > span#checkmark_ck_4 `div#cm-consentDesc > div.checkBoxOption > label#ck_4_label > span#checkmark_ck_4`

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

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Settings We use cookies and similar technologies that are necessary to… `body.maui-theme-lx > div#__tealiumGDPRcpPrefs > div#cm-dial-v211`

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.

Navigation

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Route network `div.teaser > a.teaser > div.card-content > h4.heading-copytext-large`

These are opportunities to improve keyboard navigation in your application.

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
Book & Prepare My booking Discover SWISS `div.common-header-nav-wrap > div#nav > nav.header-navigation > ul`

These are opportunities to improve the experience of reading tabular or list data using 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

●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

●`[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.

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

●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

●Elements with the `role=text` attribute do not have focusable descendents.

●ARIA toggle fields have accessible names

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

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

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

●Links have a discernible name

●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.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements 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

○No form fields have multiple labels

○`<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

○Links are distinguishable without relying on color.

○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

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
SharedStorage	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.swiss.com/cdn-cgi/challenge-platform/scripts/jsd/main.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
api.travelid.swiss.com/v1/user/me/loginstatus	`Failed to load resource: the server responded with a status of 401 ()`
	`Framing 'https://shop.swiss.com/' violates the following Content Security Policy directive: "frame-ancestors 'self'". The request has been blocked.`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/e9044abc.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/cf106378.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/c8171bb1.chunk.js
www.swiss.com/etc/designs/lx/clientlib-all/vite/js/95fab3c7.chunk.js
/digitalhangar/design-system/releases/v1.26.2/standalone/...
chromewebdata/	chromewebdata/neterror.rollup.js.map

●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

●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

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

SEO

○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`

Results for https://swiss.com

Site Health

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Top Priorities (5)

Fix Priority Matrix

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What fixing these means

Return on Investment

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Monthly returns

Regulatory risk avoided

Estimated Remediation Cost

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Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

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