Noaa.gov National Oceanic and Atmospheric Administration | U.S. Department of Commerce
noaa.gov Desktop Performance
64/100
These metrics represent real-world Chrome users experience viewing noaa.gov web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
First Input Delay
Metrics
Largest Contentful Paint23/100 3.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Cumulative Layout Shift35/100 0.33
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
First Contentful Paint44/100 1.7 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index70/100 1.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive96/100 2.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Total Blocking Time100/100 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (13)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 930 ms
930 ms
Serve images in next-gen formats
Potential savings of 1,151 KiB
880 ms
Efficiently encode images
Potential savings of 933 KiB
720 ms
Remove unused CSS
Potential savings of 139 KiB
240 ms
Remove unused JavaScript
Potential savings of 85 KiB
120 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Ensure text remains visible during webfont load
Serve static assets with an efficient cache policy
48 resources found
Avoids enormous network payloads
Total size was 2,437 KiB
Largest Contentful Paint element
1 element found
Avoid long main-thread tasks
3 long tasks found
Avoid chaining critical requests
21 chains found
Avoid large layout shifts
4 elements found
Keep request counts low and transfer sizes small
57 requests • 2,437 KiB
Passed Audits (16)
Minify JavaScript
Potential savings of 48 KiB
Enable text compression
Properly size images
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Minify CSS
Use video formats for animated content
Preconnect to required origins
Minimizes main-thread work
1.3 s
Defer offscreen images
Avoid multiple page redirects
Potential savings of 190 ms
JavaScript execution time
0.2 s
Avoids an excessive DOM size
430 elements
Uses passive listeners to improve scrolling performance
Avoids `document.write()`
Preload key requests
Initial server response time was short
Root document took 150 ms
noaa.gov Desktop SEO
90/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (1)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Document does not have a meta description
Passed Audits (9)
Document has a valid `rel=canonical`
Page isn’t blocked from indexing
Links have descriptive text
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a valid `hreflang`
Document has a `<title>` element
Page has successful HTTP status code
Links are crawlable
Document avoids plugins
noaa.gov Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of noaa.gov page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (4)
Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities
11 vulnerabilities detected
Links to cross-origin destinations are unsafe
Does not use HTTPS
1 insecure request found
General
Browser errors were logged to the console
Passed Audits (10)
Serves images with appropriate resolution
Page has the HTML doctype
Avoids deprecated APIs
Avoids requesting the geolocation permission on page load
Avoids Application Cache
Allows users to paste into password fields
Detected JavaScript libraries
Properly defines charset
Displays images with correct aspect ratio
Avoids requesting the notification permission on page load
noaa.gov Desktop Progressive Web App
44/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (9)
PWA Optimized
Manifest doesn't have a maskable icon
Does not provide a valid `apple-touch-icon`
Is not configured for a custom splash screen
Does not set a theme color for the address bar.
Fast and reliable
Current page does not respond with a 200 when offline
`start_url` does not respond with a 200 when offline
Installable
Does not register a service worker that controls page and `start_url`
Does not use HTTPS
1 insecure request found
Web app manifest does not meet the installability requirements
Passed Audits (4)
Contains some content when JavaScript is not available
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Redirects HTTP traffic to HTTPS
Page load is fast enough on mobile networks
noaa.gov Desktop Accessibility
94/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (3)
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Names and labels
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.
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (18)
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
The page contains a heading, skip link, or landmark region
`[id]` attributes on active, focusable elements are unique
`<html>` element has a `[lang]` attribute
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s have all required `[aria-*]` attributes
`<html>` element has a valid value for its `[lang]` attribute
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[role]`s are contained by their required parent element
`[role]` values are valid
Document has a `<title>` element
No element has a `[tabindex]` value greater than 0
`[aria-*]` attributes match their roles
`[aria-*]` attributes are valid and not misspelled
`[aria-hidden="true"]` is not present on the document `<body>`
Form elements have associated labels
`[aria-*]` attributes have valid values
Desktop Speed
39/100
These checks analyze the performance of noaa.gov on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (5)
Optimize images
Enable compression
Minify JavaScript
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Leverage browser caching
Passed Audits (5)
Avoid landing page redirects
Reduce server response time
Minify CSS
Minify HTML
Prioritize visible content
www.noaa.com
www.noaa.net
www.noaa.org
www.noaa.info
www.noaa.biz
www.noaa.us
www.noaa.mobi
www.oaa.gov
www.noaa.gov
www.boaa.gov
www.nboaa.gov
www.bnoaa.gov
www.hoaa.gov
www.nhoaa.gov
www.hnoaa.gov
www.joaa.gov
www.njoaa.gov
www.jnoaa.gov
www.moaa.gov
www.nmoaa.gov
www.mnoaa.gov
www.naa.gov
www.niaa.gov
www.noiaa.gov
www.nioaa.gov
www.nkaa.gov
www.nokaa.gov
www.nkoaa.gov
www.nlaa.gov
www.nolaa.gov
www.nloaa.gov
www.npaa.gov
www.nopaa.gov
www.npoaa.gov
www.noa.gov
www.noqa.gov
www.noaqa.gov
www.noqaa.gov
www.nowa.gov
www.noawa.gov
www.nowaa.gov
www.nosa.gov
www.noasa.gov
www.nosaa.gov
www.noza.gov
www.noaza.gov
www.nozaa.gov
www.noaq.gov
www.noaaq.gov
www.noaw.gov
www.noaaw.gov
www.noas.gov
www.noaas.gov
www.noaz.gov
www.noaaz.gov
www.noaa.net
www.noaa.org
www.noaa.info
www.noaa.biz
www.noaa.us
www.noaa.mobi
www.oaa.gov
www.noaa.gov
www.boaa.gov
www.nboaa.gov
www.bnoaa.gov
www.hoaa.gov
www.nhoaa.gov
www.hnoaa.gov
www.joaa.gov
www.njoaa.gov
www.jnoaa.gov
www.moaa.gov
www.nmoaa.gov
www.mnoaa.gov
www.naa.gov
www.niaa.gov
www.noiaa.gov
www.nioaa.gov
www.nkaa.gov
www.nokaa.gov
www.nkoaa.gov
www.nlaa.gov
www.nolaa.gov
www.nloaa.gov
www.npaa.gov
www.nopaa.gov
www.npoaa.gov
www.noa.gov
www.noqa.gov
www.noaqa.gov
www.noqaa.gov
www.nowa.gov
www.noawa.gov
www.nowaa.gov
www.nosa.gov
www.noasa.gov
www.nosaa.gov
www.noza.gov
www.noaza.gov
www.nozaa.gov
www.noaq.gov
www.noaaq.gov
www.noaw.gov
www.noaaw.gov
www.noas.gov
www.noaas.gov
www.noaz.gov
www.noaaz.gov