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

Audit breakdown by category with detailed findings.

79

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
t.contentsquare.net/uxa/757e6910546e7.js900.0 s162.2 KiB
d1n9ior3u0lhlo.cloudfront.net/canada--montreal.webp0.0 ms115.2 KiB
/fe/dist/discover-lib/11.29.24/browser/static/images/home...0.0 ms91.3 KiB
cdntranscend.eventbrite.com/cm/f2747157-cf59-4ef1-8703-018defe51764/ui.js60.0 s90.7 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
d1n9ior3u0lhlo.cloudfront.net/canada--ottawa.webp0.0 ms80.9 KiB
d1n9ior3u0lhlo.cloudfront.net/canada--vancouver.webp0.0 ms79.9 KiB
cdntranscend.eventbrite.com/cm/f2747157-cf59-4ef1-8703-018defe51764/airgap.js60.0 s69.2 KiB
/fe/dist/discover-lib/11.29.24/browser/static/images/home...0.0 ms47.6 KiB
/signals/config/860573327346891?v=2.9.303&r=stable&domain...1200.0 s50.7 KiB
js.hs-analytics.net/analytics/1776817200000/8020908.js300.0 s42.5 KiB
cdn.heapanalytics.com/js/heap-1404198904.js120.0 s40.4 KiB
d1n9ior3u0lhlo.cloudfront.net/canada--toronto.webp0.0 ms38.7 KiB
js.usemessages.com/conversations-embed.js600.0 s33.0 KiB
/signals/config/722929966719902?v=2.9.303&r=stable&domain...1200.0 s33.3 KiB
js.hubspot.com/web-interactives-embed.js600.0 s28.0 KiB
js.hs-banner.com/v2/8020908/banner.js300.0 s23.8 KiB
utt.impactcdn.com/A4862311-86cd-4827-a107-37afeee609051.js900.0 s20.6 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.3 KiB
js.zi-scripts.com/zi-tag.js0.0 ms5.7 KiB
cdntranscend.eventbrite.com/cm/f2747157-cf59-4ef1-8703-018defe51764/cm.css60.0 s4.2 KiB
js.hsadspixel.net/pixels.js600.0 s3.9 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s3.9 KiB
s.pinimg.com/ct/lib/main.10d2511a.js1209600.0 s27.4 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
js.hs-scripts.com/8020908.js90.0 s1.1 KiB
/tr/?id=860573327346891&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/tr/?id=722929966719902&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms16 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:48.887 source:map[type:text value:[unattributed]]] map[reflowTime:0.605 source:map[column:86058 line:44 type:source-location url:https://js.hs-analytics.net/analytics/1776817200000/8020908.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.

URLResource SizeEst Savings
Friday Night Lights Everyone FREE B4 12am w/RSVP at Mama Taco Bk primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1182478284/48251508672/1/or...144.1 KiB128.0 KiB
An image of Montreal super imposed with the text "Montreal" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--montreal.webp114.7 KiB103.3 KiB
Music Events div.HomepageBannerCarousel_banner__sh2GP > a > picture > img
/fe/dist/discover-lib/11.29.24/browser/static/images/home...90.8 KiB82.0 KiB
An image of Ottawa super imposed with the text "Ottawa" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--ottawa.webp80.5 KiB69.1 KiB
An image of Vancouver super imposed with the text "Vancouver" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--vancouver.webp79.5 KiB68.1 KiB
Why AI Needs Feminism: From Campus Surveillance to Global Conflicts primary ima… div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1176275665/17441962019/1/or...51.5 KiB45.1 KiB
Newark Hiring Event primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1082364753/109033103239/1/o...51.6 KiB44.7 KiB
Newark Career Fair primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1061227613/183327965130/1/o...51.6 KiB44.7 KiB
Karaoke Junkees Presents: Boozy PRIDE Brunch!! Beach Day Vibes! primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1180900159/1383167467193/1/...49.6 KiB43.1 KiB
MALIE DONN LIVE IN NYC primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1177903989/396827550469/1/o...46.4 KiB40.0 KiB
An image of Toronto super imposed with the text "Toronto" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--toronto.webp38.3 KiB32.5 KiB
Un Verano Sin Ti: Bunny Tribute Latin Reggaeton Boat Party Cruise NYC primary i… div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1179391735/190353750759/1/o...33.1 KiB26.7 KiB
Mietze Conte, CFCF (DJ Set) primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1178031952/2569518370411/1/...31.2 KiB24.7 KiB
MGNA Crrrta, Tommy Fleece primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1178305769/2569518370411/1/...30.9 KiB24.4 KiB
ATSs and Off-Exchange Trading - Opportunities and Challenges 2026 primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1180692858/505073923881/1/o...28.4 KiB22.0 KiB
Laurie Gilmore celebrates THE DAISY CHAIN FLOWER SHOP at B&N Union Square prima… div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1176808767/825115679133/1/o...28.0 KiB21.6 KiB
T.L. Swan signs THE HEART YOU KEPT at B&N Union Square primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1175675263/825115679133/1/o...24.3 KiB17.8 KiB
Sophia Stel primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1176081957/2569518370411/1/...21.0 KiB14.6 KiB
Pom Pom Squad, Sabrina Song primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/1177837375/2569518370411/1/...18.7 KiB12.3 KiB
Albany Career Fair primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/917845503/316131771624/1/or...16.8 KiB8.4 KiB
Iron Horse Party 2026 primary image div.Container_root__4i85v > a.EventCardLink_event-card-link__FqfAz > div.EventCardImage_event-card-image__aspect-container__Ml_cM > img.EventCardImage_event-card-image__3lBQK
/https://cdn.evbuc.com/images/991741413/792303601203/1/or...13.0 KiB8.1 KiB

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
value: No additional origins are good candidates for preconnecting

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: 287 ms
URLTime Spent
eventbrite.ca/287 ms
www.eventbrite.ca/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused 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: 250 ms 300.4 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.

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.

CategoryTime Spent
Script Evaluation1.7 s
Other370 ms
Script Parsing & Compilation304 ms
Style & Layout213 ms
Garbage Collection61 ms
Rendering43 ms
Parse HTML & CSS24 ms

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

●Max Potential First Input Delay 100 ms
●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 36 user timings
●Avoid long main-thread tasks 14 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 10 ms
●Server Backend Latencies 80 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 150 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○Avoid non-composited animations
95

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
All div.BrowseContainer_horizontalGutters__CyFk1 > div.Tabs_root__l58ms > div.Tabs_list__l58ms > button#radix-:R1lpm:-trigger-all

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.

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
Un Verano Sin Ti: Bunny Tribute Latin Reggaeton Boat Party Cruise NYC div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
MALIE DONN LIVE IN NYC div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Karaoke Junkees Presents: Boozy PRIDE Brunch!! Beach Day Vibes! div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Friday Night Lights Everyone FREE B4 12am w/RSVP at Mama Taco Bk div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
MGNA Crrrta, Tommy Fleece div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Newark Hiring Event div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Albany Career Fair div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
ATSs and Off-Exchange Trading - Opportunities and Challenges 2026 div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Newark Career Fair div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Sophia Stel div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Why AI Needs Feminism: From Campus Surveillance to Global Conflicts div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Iron Horse Party 2026 div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
T.L. Swan signs THE HEART YOU KEPT at B&N Union Square div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Mietze Conte, CFCF (DJ Set) div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Laurie Gilmore celebrates THE DAISY CHAIN FLOWER SHOP at B&N Union Square div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
Pom Pom Squad, Sabrina Song div.Container_root__4i85v > section.EventCardDetails_eventCardDetails__wOVwH > div.Stack_root__1ksk7 > a.EventCardLink_event-card-link__FqfAz
○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.
●Select elements have associated label elements.
●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
●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 have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●No form fields have multiple labels
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○`<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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○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.
○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.
77

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
An image of Ottawa super imposed with the text "Ottawa" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--ottawa.webp336 x 208 (1.62)840 x 560 (1.50)
An image of Vancouver super imposed with the text "Vancouver" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--vancouver.webp336 x 208 (1.62)840 x 558 (1.51)
An image of Toronto super imposed with the text "Toronto" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--toronto.webp336 x 208 (1.62)840 x 546 (1.54)
An image of Montreal super imposed with the text "Montreal" div.CarouselSlide_root__tL5wT > div.TopDestinationCard_root__leTgV > a > img.TopDestinationCard_image__bhQ8V
d1n9ior3u0lhlo.cloudfront.net/canada--montreal.webp336 x 208 (1.62)840 x 494 (1.70)

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 / WarningSource
AttributionReporting
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

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

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