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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

33

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.

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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:30.193 source:map[column:1395 line:56 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.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:3.229 source:map[column:70907 line:22 type:source-location url:https://vantor.com/_nuxt/JXBh-snv.js urlProvider:network]] map[reflowTime:0.24 source:map[column:84583 line:22 type:source-location url:https://vantor.com/_nuxt/JXBh-snv.js urlProvider:network]] map[reflowTime:15.855 source:map[column:18699 line:726 type:source-location url:https://vantor.com/_nuxt/JXBh-snv.js urlProvider:network]] map[reflowTime:0.997 source:map[column:5253 line:257 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:0.325 source:map[column:6226 line:257 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:2.165 source:map[column:5119 line:3 type:source-location url:https://vantor.com/_nuxt/CsrTv7VG.js urlProvider:network]] map[reflowTime:1.779 source:map[column:2239 line:3 type:source-location url:https://vantor.com/_nuxt/CsrTv7VG.js urlProvider:network]] map[reflowTime:0.309 source:map[column:2870 line:3 type:source-location url:https://vantor.com/_nuxt/CsrTv7VG.js urlProvider:network]] map[reflowTime:0.441 source:map[column:2074 line:845 type:source-location url:https://vantor.com/_nuxt/JXBh-snv.js urlProvider:network]] map[reflowTime:3.103 source:map[column:1403 line:0 type:source-location url:https://vantor.com/_nuxt/Cf80WpW4.js urlProvider:network]] map[reflowTime:34.046 source:map[column:104 line:145 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:19.721 source:map[column:1988 line:145 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:6.878 source:map[column:1764 line:145 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:1.938 source:map[column:1869 line:145 type:source-location url:https://vantor.com/_nuxt/DSoZnjLJ.js urlProvider:network]] map[reflowTime:7.076 source:map[column:1562 line:0 type:source-location url:https://vantor.com/_nuxt/Cf80WpW4.js urlProvider:network]]]

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

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.

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
div.media-container > div.media > div.video-wrapper > video.lazy div.media-container > div.media > div.video-wrapper > video.lazy
vantor.com/video-posters/file-cddca764b5cfddbfd60e9d62334afe6c4e73e0b9-mp4.jpg77.4 KiB32.9 KiB
div.media-wrapper > div.media > div.video-wrapper > video.cover div.media-wrapper > div.media > div.video-wrapper > video.cover
vantor.com/video-posters/file-df240ed619044dbdc7eff03213e3d4f1de67a4cd-mp4.jpg15.0 KiB4.5 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.

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.

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 Evaluation2.9 s
Other1.4 s
Style & Layout986 ms
Script Parsing & Compilation460 ms
Parse HTML & CSS282 ms
Rendering192 ms
Garbage Collection138 ms

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

Layout shift culprits
Document request latency
Optimize DOM size
Font display
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Reduce unused CSS
User Timing marks and measures 1 user timing
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 18 animated elements found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 180 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Avoid multiple page redirects
Initial server response time was short Root document took 40 ms
INP breakdown
LCP request discovery
Avoid large layout shifts
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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
of foundational geospatial intelligence used by the U.S. Government is powered … div.stat > div.block-text > div.block-text-col > p
government partners worldwide rely on us when it counts the most. div.stat > div.block-text > div.block-text-col > p
people rely on navigation apps powered by our dynamic foundation. div.stat > div.block-text > div.block-text-col > p
daily collection opportunities of the same location on Earth with the Vantor™ i… div.stat > div.block-text > div.block-text-col > p
sq km of daily high-resolution imagery collection capacity, including 3.5M+ 30 … div.stat > div.block-text > div.block-text-col > p
of the most populous areas mapped in 15 cm and 99% of the world mapped in seaml… div.stat > div.block-text > div.block-text-col > p
sq km of the world mapped in 3D, or 95% of the areas our customers need most. div.stat > div.block-text > div.block-text-col > p

These are opportunities to improve the legibility of your content.

Navigation

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
The Vantor Advantage div.left > div.block-text > div.block-text-col > h6.text-label
Defense div.image-card > div.card-image > div.mobile-headline-wrapper > h5.headline
Gain operational clarity with software that integrates Vantor tasking, content,… div.section-content > div.block-text > div.block-text-col > h4

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
`[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
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
ARIA attributes are used as specified for the element's role
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
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
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
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
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
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.
73

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 / WarningSource
AttributionReporting

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
Failed to load resource: the server responded with a status of 451 ()
Loading the script 'https://analytics.ahrefs.com/analytics.js' violates the following Content Security Policy directive: "script-src-elem 'self' 'unsafe-inline' https://*.wistia.com https://*.vantor.com https://*.sanity.io https://*.googletagmanager.com https://googletagmanager.com https://tagmanager.google.com https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://*.googlesyndication.com https://*.googleadservices.com https://www.googleadservices.com https://*.doubleclick.net https://googleads.g.doubleclick.net https://*.youtube.com https://*.ytimg.com https://*.demandbase.com https://*.company-target.com https://*.licdn.com https://*.linkedin.com https://www.google.com". The action has been blocked.
Loading the script 'https://browser.sentry-cdn.com/9.6.1/bundle.min.js' violates the following Content Security Policy directive: "script-src-elem 'self' 'unsafe-inline' https://*.wistia.com https://*.vantor.com https://*.sanity.io https://*.googletagmanager.com https://googletagmanager.com https://tagmanager.google.com https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://*.googlesyndication.com https://*.googleadservices.com https://www.googleadservices.com https://*.doubleclick.net https://googleads.g.doubleclick.net https://*.youtube.com https://*.ytimg.com https://*.demandbase.com https://*.company-target.com https://*.licdn.com https://*.linkedin.com https://www.google.com". The action has been blocked.
Loading the script 'https://www.clarity.ms/tag/u453b5t84h?ref=gtm' violates the following Content Security Policy directive: "script-src-elem 'self' 'unsafe-inline' https://*.wistia.com https://*.vantor.com https://*.sanity.io https://*.googletagmanager.com https://googletagmanager.com https://tagmanager.google.com https://*.google-analytics.com https://analytics.google.com https://*.analytics.google.com https://*.googlesyndication.com https://*.googleadservices.com https://www.googleadservices.com https://*.doubleclick.net https://googleads.g.doubleclick.net https://*.youtube.com https://*.ytimg.com https://*.demandbase.com https://*.company-target.com https://*.licdn.com https://*.linkedin.com https://www.google.com". The action 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.

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`

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