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nesdis.noaa.gov screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

nesdis.noaa.gov

National Environmental Satellite, Data, and Information Service

Page Load Speed

2.9 sec in total

First Response

203 ms

Resources Loaded

2.3 sec

Page Rendered

477 ms

nesdis.noaa.gov screenshot

About Website

Welcome to nesdis.noaa.gov homepage info - get ready to check Nesdis Noaa best content for United States right away, or after learning these important things about nesdis.noaa.gov

Here at the National Environmental Satellite, Data, and Information Service (NESDIS) we provide secure and timely access to global environmental data and information from satellites and other sources ...

Visit nesdis.noaa.gov

Key Findings

We analyzed Nesdis.noaa.gov page load time and found that the first response time was 203 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

nesdis.noaa.gov performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value1,020 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.131

81/100

15%

TTI (Time to Interactive)

Value59.9 s

0/100

10%

Network Requests Diagram

203 ms

www.nesdis.noaa.gov

29 ms

ajax-progress.module.css

20 ms

align.module.css

25 ms

autocomplete-loading.module.css

58 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 72% of them (76 requests) were addressed to the original Nesdis.noaa.gov, 7% (7 requests) were made to Googletagmanager.com and 4% (4 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Nesdis.noaa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 227.3 kB (40%)

Content Size

562.2 kB

After Optimization

334.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nesdis.noaa.gov main page is 562.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Javascripts take 256.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 127.3 kB

  • Original 158.9 kB
  • After minification 126.2 kB
  • After compression 31.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 32.7 kB, which is 21% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 127.3 kB or 80% of the original size.

Image Optimization

-27%

Potential reduce by 14.4 kB

  • Original 53.4 kB
  • After minification 38.9 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Nesdis Noaa needs image optimization as it can save up to 14.4 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-23%

Potential reduce by 58.0 kB

  • Original 256.8 kB
  • After minification 256.5 kB
  • After compression 198.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 58.0 kB or 23% of the original size.

CSS Optimization

-30%

Potential reduce by 27.6 kB

  • Original 93.2 kB
  • After minification 92.0 kB
  • After compression 65.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Nesdis.noaa.gov needs all CSS files to be minified and compressed as it can save up to 27.6 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 66 (69%)

Requests Now

96

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nesdis Noaa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

203 ms

www.nesdis.noaa.gov

www.nesdis.noaa.gov

29 ms

ajax-progress.module.css

ajax-progress.module.css

20 ms

align.module.css

align.module.css

25 ms

autocomplete-loading.module.css

autocomplete-loading.module.css

58 ms

fieldgroup.module.css

fieldgroup.module.css

57 ms

container-inline.module.css

container-inline.module.css

58 ms

clearfix.module.css

clearfix.module.css

56 ms

details.module.css

details.module.css

54 ms

hidden.module.css

hidden.module.css

54 ms

item-list.module.css

item-list.module.css

79 ms

js.module.css

js.module.css

77 ms

nowrap.module.css

nowrap.module.css

79 ms

position-container.module.css

position-container.module.css

77 ms

progress.module.css

progress.module.css

77 ms

reset-appearance.module.css

reset-appearance.module.css

76 ms

resize.module.css

resize.module.css

105 ms

sticky-header.module.css

sticky-header.module.css

106 ms

system-status-counter.css

system-status-counter.css

104 ms

system-status-report-counters.css

system-status-report-counters.css

102 ms

system-status-report-general-info.css

system-status-report-general-info.css

104 ms

tabledrag.module.css

tabledrag.module.css

102 ms

tablesort.module.css

tablesort.module.css

118 ms

tree-child.module.css

tree-child.module.css

108 ms

views.module.css

views.module.css

109 ms

addtoany.css

addtoany.css

116 ms

paragraphs.unpublished.css

paragraphs.unpublished.css

116 ms

style.css

style.css

122 ms

css2

css2

149 ms

all.min.css

all.min.css

107 ms

js

js

313 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

103 ms

js

js

398 ms

js

js

559 ms

jquery.min.js

jquery.min.js

118 ms

once.min.js

once.min.js

117 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

144 ms

drupal.js

drupal.js

144 ms

drupal.init.js

drupal.init.js

116 ms

index.umd.min.js

index.umd.min.js

197 ms

page.js

page.js

99 ms

addtoany.js

addtoany.js

201 ms

lazy.js

lazy.js

200 ms

nesdis.js

nesdis.js

198 ms

siteanalyze_6022737.js

siteanalyze_6022737.js

114 ms

profile-direct-link.js

profile-direct-link.js

198 ms

event-page-header-tab.js

event-page-header-tab.js

192 ms

search-exposed-filter.js

search-exposed-filter.js

267 ms

accessibility.js

accessibility.js

238 ms

uswds.min.js

uswds.min.js

243 ms

beforeafter.jquery-1.0.0.js

beforeafter.jquery-1.0.0.js

237 ms

gtm.js

gtm.js

234 ms

gtag.js

gtag.js

236 ms

progress.js

progress.js

237 ms

loadjs.min.js

loadjs.min.js

216 ms

debounce.js

debounce.js

217 ms

announce.js

announce.js

217 ms

message.js

message.js

217 ms

ajax.js

ajax.js

217 ms

gtag.ajax.js

gtag.ajax.js

230 ms

jquery.form.min.js

jquery.form.min.js

204 ms

base.js

base.js

206 ms

ajax_view.js

ajax_view.js

207 ms

noaa-logo-16x9.png.webp

noaa-logo-16x9.png.webp

205 ms

expand_more.svg

expand_more.svg

360 ms

nhem-aurora-labels-%281%29.png.webp

nhem-aurora-labels-%281%29.png.webp

473 ms

world-in-real-time-16x9_NESDIS.jpg.webp

world-in-real-time-16x9_NESDIS.jpg.webp

362 ms

GOES-U_Starry_Night_Background.png.webp

GOES-U_Starry_Night_Background.png.webp

365 ms

2023-jpss-science-digest-CARD.png.webp

2023-jpss-science-digest-CARD.png.webp

357 ms

WorkshopImage_0.jpg.webp

WorkshopImage_0.jpg.webp

357 ms

Daniele-Heiny-Photo_Tokyo.jpg.webp

Daniele-Heiny-Photo_Tokyo.jpg.webp

472 ms

eclipse_balloons_weather.png.webp

eclipse_balloons_weather.png.webp

471 ms

Facebook-banner-JPSS2.jpg.webp

Facebook-banner-JPSS2.jpg.webp

563 ms

hurricane-dark-CARD-homepage.png.webp

hurricane-dark-CARD-homepage.png.webp

633 ms

Wildfire-Homepage-CARD-DARK.png.webp

Wildfire-Homepage-CARD-DARK.png.webp

628 ms

space-weather-homepage-CARD-DARK.png.webp

space-weather-homepage-CARD-DARK.png.webp

631 ms

js

js

362 ms

analytics.js

analytics.js

626 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4kY1M2xYkS.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0C4kY1M2xYkS.woff

704 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4kY1M2xYkS.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4kY1M2xYkS.woff

943 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0C4kY1M2xYkS.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0C4kY1M2xYkS.woff

1020 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4kY1M2xYkS.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4kY1M2xYkS.woff

997 ms

nhem-aurora-labels.png.webp

nhem-aurora-labels.png.webp

626 ms

NOAA-logo_16x9_NoBorder.png.webp

NOAA-logo_16x9_NoBorder.png.webp

699 ms

202405071901-202405080126_g16_conus_geocolorglm_midwest-tornadic-severe_labels-ezgif.com-video-to-gif-converter.gif

202405071901-202405080126_g16_conus_geocolorglm_midwest-tornadic-severe_labels-ezgif.com-video-to-gif-converter.gif

1078 ms

Ruang-Volcano-5-1-2024.gif

Ruang-Volcano-5-1-2024.gif

1069 ms

10min_min_2017_2024_both_label_map-ezgif.com-video-to-gif-converter.gif

10min_min_2017_2024_both_label_map-ezgif.com-video-to-gif-converter.gif

942 ms

ElNino_IntroImage.jpg.webp

ElNino_IntroImage.jpg.webp

837 ms

GOES-U_Starry_Night_Background.png.webp

GOES-U_Starry_Night_Background.png.webp

836 ms

noaa-logo-white.png

noaa-logo-white.png

857 ms

fa-brands-400.ttf

fa-brands-400.ttf

354 ms

fa-solid-900.ttf

fa-solid-900.ttf

514 ms

fa-regular-400.ttf

fa-regular-400.ttf

446 ms

sm.25.html

sm.25.html

410 ms

eso.BRQnzO8v.js

eso.BRQnzO8v.js

480 ms

js

js

338 ms

js

js

344 ms

js

js

342 ms

image.aspx

image.aspx

634 ms

202405162200-202405170045_g16_meso_band2glm_houston-slammed-by-severe-storms_labels-1-ezgif.com-video-to-gif-converter.gif

202405162200-202405170045_g16_meso_band2glm_houston-slammed-by-severe-storms_labels-1-ezgif.com-video-to-gif-converter.gif

483 ms

collect

collect

215 ms

collect

collect

204 ms

icons.38.svg.js

icons.38.svg.js

139 ms

collect

collect

68 ms

ga-audiences

ga-audiences

615 ms

Accessibility Review

nesdis.noaa.gov accessibility score

100

Accessibility Issues

Best Practices

nesdis.noaa.gov best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

nesdis.noaa.gov SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nesdis.noaa.gov can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Nesdis.noaa.gov main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

nesdis.noaa.gov

Open Graph description is not detected on the main page of Nesdis Noaa. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: