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
www.gd.com/content/styles/gd-corporate.2026.4.css	3600.0 s	156.8 KiB
www.gd.com/content/scripts/main-gdms.2026.4.js	3600.0 s	110.0 KiB
www.gd.com/content/scripts/vendor.2026.4.js	3600.0 s	63.5 KiB
www.gd.com/content/scripts/stock-ticker.2026.4.js	3600.0 s	29.5 KiB
www.gd.com/content/scripts/carousel-page-intro.2026.4.js	3600.0 s	2.4 KiB
www.gd.com/content/scripts/runtime.2026.4.js	3600.0 s	2.4 KiB
www.gd.com/content/scripts/global.2026.4.js	3600.0 s	1.9 KiB

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.

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
Co-workers `div.general-content > div.cta > div.cta__image > img`	/-/media/gd-corporate/home/office-homepage.ashx?la=en&h=1...	173.3 KiB	162.1 KiB
EB Roll Out 2026 `div.news-item > figure.news-item__image > a > img`	/-/media/c1d855e588be474c88310e7042e65dd2.ashx?h=720&w=12...	162.0 KiB	148.7 KiB
GD Nitsche Nucleodynamics `div.news-item > figure.news-item__image > a > img`	/-/media/16977c795eee4b69bf903728c2f8bef3.ashx?h=503&w=89...	117.9 KiB	104.5 KiB
GD Nitsche Aircraft 1 `div.news-item > figure.news-item__image > a > img`	/-/media/2a92b99412554d769024040c8fe99803.ashx?h=503&w=89...	109.9 KiB	96.6 KiB
GD Corp Homepage Carousel Placeholder `div.general-content > div.col-12 > div.carousel-page-intro > img`	/-/media/gd-corporate/home/homepage-hero-images/2026/gulf...	88.4 KiB	78.5 KiB
GDIT_NationalGuard2026 `div.news-item > figure.news-item__image > a > img`	/-/media/305088d58a2b4a2ab193ca79d44ca57d.ashx?h=502&w=89...	63.0 KiB	51.5 KiB
General Dynamics Elects Danny Deep to Board of Directors `div.news-item > figure.news-item__image > a > img`	/-/media/cba30986dcf6453fad797bcf8fb07b98.ashx?h=502&w=89...	20.0 KiB	16.4 KiB
GD Nitsche Hydrodynamics `div.news-item > figure.news-item__image > a > img`	/-/media/0fe357335d9e4ba182313453c4886743.ashx?h=337&w=60...	13.3 KiB	7.9 KiB
General Dynamics Logo `div.centered-width > div.brand-logo > a > img`	/-/media/gd-corporate/global/gd-logo.ashx?la=en&h=50&w=72...	6.1 KiB	4.4 KiB

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: Co-workers

path: 1,HTML,1,BODY,4,DIV,0,DIV,3,SECTION,0,DIV,0,DIV,5,DIV,0,DIV,0,IMG

selector: div.general-content > div.cta > div.cta__image > img

snippet: <img src="/-/media/gd-corporate/home/office-homepage.ashx?la=en&h=1403&w=2138&hash=B…" height="1403" alt="Co-workers" width="2138">

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.

URL	Transfer Size	Duration
www.gd.com/content/styles/gd-corporate.2026.4.css	156.8 KiB	900 ms
cdn.fonts.net/t/1.css?apiType=css&projectid=23163b7c-5f22-4638-8462-e726b4a9e379	401 B	761 ms

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: 784 ms

URL	Time Spent
gd.com/	784 ms
www.gd.com/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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 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: 1.1 s 146.3 KiB

URL	Transfer Size	Est Savings
www.gd.com/content/styles/gd-corporate.2026.4.css	155.1 KiB	146.3 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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.5 s 240.0 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-5RF5Y1Q0EW&cx=c&gtm=4e68j0	164.8 KiB	70.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-P7ZN6XS	126.3 KiB	62.2 KiB
www.gd.com/content/scripts/main-gdms.2026.4.js	108.2 KiB	55.8 KiB
www.gd.com/content/scripts/vendor.2026.4.js	61.9 KiB	51.2 KiB

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
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,564 KiB

●JavaScript execution time 0.8 s

●Minimizes main-thread work 1.2 s

●Avoid long main-thread tasks 6 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 30 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 20 ms

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

○Avoid large layout shifts

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

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
ABOUT GD `div.general-container > div.general-content > div.col-lg-8 > a.button`
We're looking for talented, motivated individuals who are ready to do innovativ… `div.col-lg-6 > div.cta__body > div.cta__copy > p`
SEARCH GD CAREERS `div.cta > div.col-lg-6 > div.cta__body > a.button`
August 07, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
August 06, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
August 05, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
July 29, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
July 29, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
July 28, 2026 `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__publish-date`
Press Release `div.js-featured-news-results > div.news-item > div.news__header-secondary > span.news__article-category`
ABOUT GD `ul > li.link-heading > a.footer-link > span`
OUR BUSINESSES `ul > li > a.footer-link > span`
CORPORATE RESPONSIBILITY `ul > li > a.footer-link > span`
NEWS `ul > li > a.footer-link > span`
RESOURCES `div.generalColumn > ul > li.link-heading > span`
INVESTORS `ul > li > a.footer-link > span`
SUPPLIERS `ul > li > a.footer-link > span`
EMPLOYEES `ul > li > a.footer-link > span`
FAQS `ul > li > a.footer-link > span`
CAREERS `ul > li.link-heading > a.footer-link > span`
SEARCH OPEN POSITIONS `ul > li > a.footer-link > span`
CONTACT US `ul > li.link-heading > a.footer-link > span`
FOLLOW US `div.generalColumn > ul > li.link-heading > span`
Learn More `div.row > div.col-12 > p.cookie-notice__copy > a.cookie-notice__link`
ACCEPT `div.cookie-notice > div.row > div.col-12 > button.js-cookie-button`
DECLINE `div.cookie-notice > div.row > div.col-12 > button.js-cookie-button`

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
WANT TO JOIN A WINNING TEAM? `div.cta > div.col-lg-6 > div.cta__body > h3`
GDIT Awarded $1.3 Billion Enterprise Network Operations And Cybersecurity Suppo… `div.featured-news > div.js-featured-news-results > div.news-item > h4.news__header`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header.primary-nav__header > div.blue-stripe > div.centered > a#menuToggle `header.primary-nav__header > div.blue-stripe > div.centered > a#menuToggle`
div.general-container > div.general-content > div.cta--grid-item > a `div.general-container > div.general-content > div.cta--grid-item > a`
div.general-container > div.general-content > div.cta--grid-item > a `div.general-container > div.general-content > div.cta--grid-item > a`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

○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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

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

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

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

●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.

●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

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

○`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 input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements use only permitted 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

○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

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

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

○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.

○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.

○Elements with visible text labels have matching accessible names.

○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.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

SEO

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

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
www.gd.com/privacy-policy	Learn More

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○robots.txt is valid