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
m.vueling.com/main.589b2ac66d647595.js	224.0 s	735.7 KiB
cdn.quantummetric.com/qscripts/quantum-vueling.js	300.0 s	154.8 KiB
m.vueling.com/scripts.5f11d3cd0711642e.js	382.0 s	154.7 KiB
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/J1i3LDVuV9w9Xk/bBJnKQVZfQ/EHlz/bBFRMAUC	21600.0 s	182.6 KiB
m.vueling.com/assets/fonts/ds-vueling-icons.woff2?m8cpo5	222.0 s	109.2 KiB
/VvV_CU/-cR/1WF/N2BGojSq/SDi3LDVu/Uk9rKQVZfQ/JB4J/VWwANyU...	21600.0 s	153.4 KiB
m.vueling.com/assets/fonts/source-sans-pro/SourceSansPro-SemiBold.woff2	94.0 s	75.0 KiB
m.vueling.com/assets/fonts/source-sans-pro/SourceSansPro-Regular.woff2	399.0 s	76.0 KiB
m.vueling.com/assets/img/home/complete-your-travel/parking.png	484.0 s	60.4 KiB
cdn.cookielaw.org/consent/eb440cb9-982b-4dfe-9764-a5f339ad9985/OtAutoBlock.js	86400.0 s	131.6 KiB
m.vueling.com/resources/5ca37ed9506e8073faf2465e595f1330830972a3a4ff7	600.0 s	56.6 KiB
se.monetate.net/js/2/a-02a953bb/p/m.vueling.com/custom.js	3600.0 s	63.8 KiB
m.vueling.com/styles.8e885a44ccb9c0d4.css	357.0 s	53.3 KiB
m.vueling.com/assets/img/home/complete-your-travel/hotels.webp	83.0 s	48.5 KiB
cdn.cookielaw.org/scripttemplates/6.38.0/otBannerSdk.js	86400.0 s	87.9 KiB
m.vueling.com/assets/img/home/complete-your-travel/cars.png	11.0 s	28.7 KiB
m.vueling.com/6258.afba6971f62b6f1d.js	255.0 s	23.4 KiB
m.vueling.com/231.353e5fa70266ac30.js	335.0 s	22.6 KiB
m.vueling.com/assets/fonts/pilcrow/vuelingpilcrow-semibold-webfont.woff2	395.0 s	22.4 KiB
m.vueling.com/assets/img/check-in/home-push/home-checkin2x.webp	418.0 s	20.7 KiB
m.vueling.com/common.899366586e059b1b.js	482.0 s	18.1 KiB
m.vueling.com/assets/img/myvueling/push-home-vy-club.png	469.0 s	17.9 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
m.vueling.com/polyfills.dcdf2a094f8295e9.js	420.0 s	12.9 KiB
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/SD/YGFXKQVZfQ/WkoG/Cm09AkYp	86400.0 s	28.8 KiB
static.vueling.com/corporative7/media/1187/roma-fco_091025ok.webp	603013.0 s	108.5 KiB
static.vueling.com/corporative7/media/1055/bc_mb_375x715_bg_140426w.webp	603013.0 s	85.2 KiB
static.vueling.com/corporative7/media/1108/edimburgo-edi.webp	603013.0 s	77.9 KiB
m.vueling.com/ajax-loader.94cdb3319868cfa7.gif	110.0 s	6.6 KiB
static.vueling.com/corporative7/media/1066/amsterdam-ams.webp	603013.0 s	63.0 KiB
static.vueling.com/corporative7/media/1153/malta-mla.webp	603013.0 s	56.6 KiB
s.go-mpulse.net/boomerang/PC6QT-A8FK6-WHT6M-VUAGT-35NQS	604800.0 s	56.1 KiB
m.vueling.com/8946.db870a66c8e5f2bc.js	255.0 s	5.1 KiB
m.vueling.com/runtime.8bee5dd196d2555b.js	420.0 s	4.6 KiB
m.vueling.com/assets/img/home/app-store/android.svg	267.0 s	3.4 KiB
cdn.cookielaw.org/consent/eb440cb9-982b-4dfe-9764-a5f339ad9985/otSDKStub.js	86400.0 s	7.5 KiB
static.vueling.com/corporative7/media/1017/urban_mobile_home.jpg	2590214.0 s	27.0 KiB
m.vueling.com/assets/img/home/logo-vueling.svg	450.0 s	2.6 KiB
static.vueling.com/corporative7/media/1016/playa_mobile.jpg	2590214.0 s	23.4 KiB
m.vueling.com/assets/img/home/fly-with-us/avios.svg	155.0 s	1.9 KiB
static.vueling.com/corporative7/media/1015/familia_mobile_home.jpg	2590235.0 s	17.5 KiB
m.vueling.com/assets/img/home/fly-with-us/hand-up.svg	255.0 s	1.6 KiB
m.vueling.com/assets/js/usabilla-dev.js	451.0 s	1.6 KiB
m.vueling.com/assets/img/home/fly-with-us/check-in.svg	155.0 s	1.3 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.7 KiB
m.vueling.com/assets/img/home/social/instagram.svg	11.0 s	1.0 KiB
m.vueling.com/assets/img/home/social/youtube.svg	291.0 s	1.0 KiB
m.vueling.com/assets/img/loadingVueling2Airplanesv2.svg	463.0 s	1.0 KiB
m.vueling.com/assets/img/home/social/twitter.svg	291.0 s	1.0 KiB
m.vueling.com/assets/img/home/social/facebook.svg	154.0 s	862 B
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/SD/YGFXKQVZfQ/Z1NX/EXYUJRlZ	86400.0 s	1.3 KiB
/eu-central-1.amazonaws/vueling-universal13.js?z=0.073516...	0.0 ms	365 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
m.vueling.com/assets/fonts/ds-vueling-icons.woff2?m8cpo5	320 ms
m.vueling.com/assets/fonts/pilcrow/vuelingpilcrow-semibold-webfont.woff2	305 ms
m.vueling.com/assets/fonts/source-sans-pro/SourceSansPro-SemiBold.woff2	155 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:7.329 source:map[column:32013 line:0 type:source-location url:https://m.vueling.com/6258.afba6971f62b6f1d.js urlProvider:network]] map[reflowTime:6.501 source:map[column:1.463006e+06 line:0 type:source-location url:https://m.vueling.com/main.589b2ac66d647595.js urlProvider:network]] map[reflowTime:9.29 source:map[column:1.485627e+06 line:0 type:source-location url:https://m.vueling.com/main.589b2ac66d647595.js urlProvider:network]] map[reflowTime:13.507 source:map[column:62730 line:0 type:source-location url:https://m.vueling.com/6258.afba6971f62b6f1d.js urlProvider:network]] map[reflowTime:1.126 source:map[column:707875 line:0 type:source-location url:https://m.vueling.com/main.589b2ac66d647595.js urlProvider:network]] map[reflowTime:8.094 source:map[column:705855 line:0 type:source-location url:https://m.vueling.com/main.589b2ac66d647595.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
alt `div.img-background-main > image-container.img-background-main__src > picture.ng-tns-c4244759221-3 > img.ng-tns-c4244759221-3`	static.vueling.com/corporative7/media/1055/bc_mb_375x715_bg_140426w.webp	84.9 KiB	42.8 KiB
div.card-container > vy-card-link > div.card-container > div.card-container__header `div.card-container > vy-card-link > div.card-container > div.card-container__header`	m.vueling.com/assets/img/home/complete-your-travel/parking.png	59.9 KiB	25.7 KiB
URBAN AND CULTURAL `div#your-destiny > cdk-virtual-scroll-viewport.cdk-virtual-scroll-viewport > div.cdk-virtual-scroll-content-wrapper > div.destiny-card`	static.vueling.com/corporative7/media/1017/urban_mobile_home.jpg	26.6 KiB	20.8 KiB
div.card-container > vy-card-link > div.card-container > div.card-container__header `div.card-container > vy-card-link > div.card-container > div.card-container__header`	m.vueling.com/assets/img/home/complete-your-travel/cars.png	28.2 KiB	19.9 KiB
TO THE BEACH! `div#your-destiny > cdk-virtual-scroll-viewport.cdk-virtual-scroll-viewport > div.cdk-virtual-scroll-content-wrapper > div.destiny-card`	static.vueling.com/corporative7/media/1016/playa_mobile.jpg	23.0 KiB	17.3 KiB
div.card-container > vy-card-link > div.card-container > div.card-container__header `div.card-container > vy-card-link > div.card-container > div.card-container__header`	m.vueling.com/assets/img/home/complete-your-travel/hotels.webp	48.0 KiB	13.8 KiB
FAMILY `div#your-destiny > cdk-virtual-scroll-viewport.cdk-virtual-scroll-viewport > div.cdk-virtual-scroll-content-wrapper > div.destiny-card`	static.vueling.com/corporative7/media/1015/familia_mobile_home.jpg	17.1 KiB	11.3 KiB
vueling club `home.ng-star-inserted > app-vy-club-push-home.ng-star-inserted > div.image > img`	m.vueling.com/assets/img/myvueling/push-home-vy-club.png	17.4 KiB	10.0 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:1266.258 label:Time to first byte subpart:timeToFirstByte] map[duration:4895.812 label:Resource load delay subpart:resourceLoadDelay] map[duration:160.829 label:Resource load duration subpart:resourceLoadDuration] map[duration:123.912 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-IMG

nodeLabel: alt

path: 1,HTML,2,BODY,1,DIV,1,VY-APP,2,MAIN,1,HOME,3,DIV,3,HOME-IMAGE-SLIDER,0,IMAGE-BACKGROUND,1,SWIPER-CONTAINER,0,SWIPER-SLIDE,0,DIV,0,IMAGE-CONTAINER,0,PICTURE,1,IMG

selector: div.img-background-main > image-container.img-background-main__src > picture.ng-tns-c4244759221-3 > img.ng-tns-c4244759221-3

snippet: <img _ngcontent-ng-c4244759221="" priority="true" width="100" height="100" class="ng-tns-c4244759221-3 picture-width ng-trigger ng-trigger-fadeIn" alt="alt" data-test-id="" loading="eager" fetchpriority="high" decoding="sync" ng-img="true" src="https://static.vueling.com/corporative7/media/1055/bc_mb_375x715_bg_140426…">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: alt

path: 1,HTML,2,BODY,1,DIV,1,VY-APP,2,MAIN,1,HOME,3,DIV,3,HOME-IMAGE-SLIDER,0,IMAGE-BACKGROUND,1,SWIPER-CONTAINER,0,SWIPER-SLIDE,0,DIV,0,IMAGE-CONTAINER,0,PICTURE,1,IMG

selector: div.img-background-main > image-container.img-background-main__src > picture.ng-tns-c4244759221-3 > img.ng-tns-c4244759221-3

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
m.vueling.com/resources/5ca37ed9506e8073faf2465e595f1330830972a3a4ff7	56.6 KiB	302 ms
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/SD/YGFXKQVZfQ/Z1NX/EXYUJRlZ	1.3 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: 3.3 s

URL	Time Spent
vueling.com/	1.2 s
www.vueling.com/	1.2 s
www.vueling.com/en	917 ms
m.vueling.com/	0.0 ms

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: 7.0 s 1.1 MiB

URL	Transfer Size	Est Savings
m.vueling.com/main.589b2ac66d647595.js	735.2 KiB	356.4 KiB
m.vueling.com/scripts.5f11d3cd0711642e.js	154.2 KiB	108.8 KiB
www.googletagmanager.com/gtag/js?id=AW-1070364677&cx=c&gtm=4e64f0h2	144.0 KiB	106.2 KiB
cdn.quantummetric.com/qscripts/quantum-vueling.js	154.2 KiB	64.7 KiB
www.googletagmanager.com/gtag/js?id=AW-1070364677	143.8 KiB	64.6 KiB
www.googletagmanager.com/gtag/js?id=AW-807657239&cx=c&gtm=4e64f0h2	137.0 KiB	63.9 KiB
www.googletagmanager.com/gtag/js?id=DC-9971265&cx=c&gtm=4e64f0h2	131.9 KiB	58.8 KiB
www.googletagmanager.com/gtag/js?id=G-Y2R5C29F9Q&cx=c&gtm=4e64f0h2	172.4 KiB	56.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-56RKXM6	198.8 KiB	51.6 KiB
se.monetate.net/js/2/a-02a953bb/p/m.vueling.com/custom.js	63.6 KiB	47.9 KiB
cdn.cookielaw.org/scripttemplates/6.38.0/otBannerSdk.js	87.6 KiB	46.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-NQHBFRM&gtm=4e64f0h2	147.2 KiB	44.0 KiB
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/J1i3LDVuV9w9Xk/bBJnKQVZfQ/EHlz/bBFRMAUC	181.4 KiB	37.8 KiB
s.go-mpulse.net/boomerang/PC6QT-A8FK6-WHT6M-VUAGT-35NQS	55.9 KiB	31.5 KiB
/VvV_CU/-cR/1WF/N2BGojSq/SDi3LDVu/Uk9rKQVZfQ/JB4J/VWwANyU...	152.8 KiB	28.3 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
m.vueling.com/	5.6 s	5.2 s	2.9 ms
m.vueling.com/resources/5ca37ed9506e8073faf2465e595f1330830972a3a4ff7	5.4 s	4.8 s	43 ms
Unattributable	2.0 s	748 ms	0.0 ms
m.vueling.com/main.589b2ac66d647595.js	1.5 s	1.2 s	14 ms
/VvV_CU/-cR/1WF/N2BGojSq/SDi3LDVu/Uk9rKQVZfQ/JB4J/VWwANyU...	1.1 s	942 ms	91 ms
www.googletagmanager.com/gtag/js?id=AW-807657239&cx=c&gtm=4e64f0h2	900 ms	805 ms	36 ms
www.googletagmanager.com/gtm.js?id=GTM-NQHBFRM&gtm=4e64f0h2	605 ms	519 ms	71 ms
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/J1i3LDVuV9w9Xk/bBJnKQVZfQ/EHlz/bBFRMAUC	555 ms	454 ms	85 ms
cdn.cookielaw.org/scripttemplates/6.38.0/otBannerSdk.js	527 ms	352 ms	58 ms
www.googletagmanager.com/gtm.js?id=GTM-56RKXM6	523 ms	350 ms	104 ms
www.googletagmanager.com/gtag/js?id=G-Y2R5C29F9Q&cx=c&gtm=4e64f0h2	388 ms	327 ms	56 ms
m.vueling.com/scripts.5f11d3cd0711642e.js	350 ms	203 ms	47 ms
/trk/4/s/a-02a953bb/p/m.vueling.com/933881050-0?mr=t16744...	292 ms	228 ms	3.9 ms
cdn.cookielaw.org/consent/eb440cb9-982b-4dfe-9764-a5f339ad9985/OtAutoBlock.js	208 ms	25 ms	167 ms
cdn.quantummetric.com/qscripts/quantum-vueling.js	199 ms	137 ms	55 ms
www.googletagmanager.com/gtag/js?id=DC-9971265&cx=c&gtm=4e64f0h2	198 ms	153 ms	42 ms
www.googletagmanager.com/gtag/js?id=AW-1070364677	104 ms	64 ms	38 ms
se.monetate.net/js/2/a-02a953bb/p/m.vueling.com/custom.js	103 ms	71 ms	32 ms
cdn.cookielaw.org/consent/eb440cb9-982b-4dfe-9764-a5f339ad9985/otSDKStub.js	102 ms	84 ms	1.9 ms
s.go-mpulse.net/boomerang/PC6QT-A8FK6-WHT6M-VUAGT-35NQS	94 ms	63 ms	25 ms
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/SD/YGFXKQVZfQ/WkoG/Cm09AkYp	84 ms	76 ms	7.4 ms
/trk/4/s/a-02a953bb/p/m.vueling.com/933881050-1?mr=t16744...	80 ms	66 ms	3.2 ms
www.googletagmanager.com/gtag/js?id=AW-1070364677&cx=c&gtm=4e64f0h2	77 ms	32 ms	44 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	16.9 s
Other	2.0 s
Script Parsing & Compilation	1.0 s
Style & Layout	530 ms
Garbage Collection	375 ms
Parse HTML & CSS	203 ms
Rendering	94 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
The page has an unload handler in a sub frame.	Actionable

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 59.9 KiB

URL	Transfer Size	Est Savings
m.vueling.com/styles.8e885a44ccb9c0d4.css	52.8 KiB	41.9 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …	21.6 KiB	18.1 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
m.vueling.com/main.589b2ac66d647595.js	735.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-56RKXM6	198.8 KiB
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/J1i3LDVuV9w9Xk/bBJnKQVZfQ/EHlz/bBFRMAUC	182.6 KiB
www.googletagmanager.com/gtag/js?id=G-Y2R5C29F9Q&cx=c&gtm=4e64f0h2	172.4 KiB
cdn.quantummetric.com/qscripts/quantum-vueling.js	154.8 KiB
m.vueling.com/scripts.5f11d3cd0711642e.js	154.7 KiB
/VvV_CU/-cR/1WF/N2BGojSq/SDi3LDVu/Uk9rKQVZfQ/JB4J/VWwANyU...	153.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-NQHBFRM&gtm=4e64f0h2	147.2 KiB
www.googletagmanager.com/gtag/js?id=AW-1070364677	144.2 KiB
www.googletagmanager.com/gtag/js?id=AW-1070364677&cx=c&gtm=4e64f0h2	144.1 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
vueling club `home.ng-star-inserted > app-vy-club-push-home.ng-star-inserted > div.image > img`	m.vueling.com/assets/img/myvueling/push-home-vy-club.png
Collect Avios, fly for free `app-fly-with-us.ng-star-inserted > div.fly-with-us-container > div.fly-with-us-container__content > img`	m.vueling.com/assets/img/home/fly-with-us/avios.svg
No admin charges `app-fly-with-us.ng-star-inserted > div.fly-with-us-container > div.fly-with-us-container__content > img`	m.vueling.com/assets/img/home/fly-with-us/hand-up.svg
app-store `button.mdc-button > span.mdc-button__label > span > img`	m.vueling.com/assets/img/home/app-store/android.svg
Free online check-in `app-fly-with-us.ng-star-inserted > div.fly-with-us-container > div.fly-with-us-container__content > img`	m.vueling.com/assets/img/home/fly-with-us/check-in.svg
Vueling `app-home-footer > div.footer > span.footer__logo > img`	m.vueling.com/assets/img/home/logo-vueling.svg
Vueling youtube `div.social > div.social__rss > span.social__rss__item > img`	m.vueling.com/assets/img/home/social/youtube.svg
Vueling instagram `div.social > div.social__rss > span.social__rss__item > img`	m.vueling.com/assets/img/home/social/instagram.svg
Vueling twitter `div.social > div.social__rss > span.social__rss__item > img`	m.vueling.com/assets/img/home/social/twitter.svg
Vueling facebook `div.social > div.social__rss > span.social__rss__item > img`	m.vueling.com/assets/img/home/social/facebook.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

●Minify JavaScript

●User Timing marks and measures 61 user timings

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 150 ms

●Server Backend Latencies 190 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 180 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○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

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
COOKIE POLICY We use our own and third-party cookies for analytical, personali… `body.ui-mobile-viewport > div#onetrust-consent-sdk > div#onetrust-banner-sdk`

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
head > meta `head > meta`

These items highlight common accessibility best practices.

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
Cookie policy `div#onetrust-group-container > div#onetrust-policy > p#onetrust-policy-text > a.ot-cookie-policy-link`

○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-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Image elements have `[alt]` attributes

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

●ARIA attributes are used as specified for the element's role

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

●Links are distinguishable without relying on color.

●Links have a discernible name

●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

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

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

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

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

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

○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
Unload event listeners are deprecated and will be removed.	m.vueling.com/resources/5ca37ed9506e8073faf2465e595f1330830972a3a4ff7 line 112, col 62

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.

Description
`The script resource is behind a redirect, which is disallowed.`

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
m.vueling.com/VvV_CU/-cR/1WF/N2BGojSq/J1i3LDVuV9w9Xk/bBJnKQVZfQ/EHlz/bBFRMAUC
m.vueling.com/scripts.5f11d3cd0711642e.js	m.vueling.com/scripts.5f11d3cd0711642e.js.map
m.vueling.com/main.589b2ac66d647595.js	m.vueling.com/main.589b2ac66d647595.js.map
m.vueling.com/runtime.8bee5dd196d2555b.js	m.vueling.com/runtime.8bee5dd196d2555b.js.map
m.vueling.com/polyfills.dcdf2a094f8295e9.js	m.vueling.com/polyfills.dcdf2a094f8295e9.js.map
m.vueling.com/common.899366586e059b1b.js	m.vueling.com/common.899366586e059b1b.js.map
m.vueling.com/8946.db870a66c8e5f2bc.js	m.vueling.com/8946.db870a66c8e5f2bc.js.map
m.vueling.com/6258.afba6971f62b6f1d.js	m.vueling.com/6258.afba6971f62b6f1d.js.map
m.vueling.com/231.353e5fa70266ac30.js	m.vueling.com/231.353e5fa70266ac30.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

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

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○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
www.vueling.com/en/customer-services/cookie-policy	More information

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`