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Search Engine Optimization Overview
86
100
NASA
NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.
https://www.nasa.gov/
2 high issues
6.1%
1 medium issue
3.0%
4 low issues
12.1%
26 tests passed
78.8%
0.09 seconds
10.45 kB
7 resources
Secure
Seo
Title
The title tag is perfect.
NASA
Meta description
The meta description tag is good.
NASA.gov brings you the latest news, images and videos from America's space agency, pioneering the future in space exploration, scientific discovery and aeronautics research.
Headings
There is no h1 tag on the webpage.
Content keywords
The content has relevant keywords.
nasa
Image keywords
All images have alt attributes set.
SEO friendly URL
The URL is SEO friendly.
https://www.nasa.gov/
404 page
The website has 404 error pages.
https://www.nasa.gov/404-1f8c8da84d1ca27bb94bf438d92ceea1
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
en
Favicon
The webpage has a favicon.
https://www.nasa.gov/sites/all/themes/custom/nasatwo/images/apple-touch-icon-152x152.png
Performance
Text compression
The HTML file is not compressed.
Load time
The webpage loaded in 0.09 seconds.
Page size
The size of the HTML webpage is 10,445.00.
HTTP requests
There are fewer than 7 HTTP requests on the webpage.
  1. https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NASA&yt=true&dclink=true
  2. https://www.nasa.gov/sites/default/files/google_tag/sitewide_gtm/google_tag.script.js?
  3. https://www.nasa.gov/sites/all/themes/custom/nasatwo/js/vendor.js?
  4. https://www.nasa.gov/sites/all/themes/custom/nasatwo/js/nasa.js?
  1. https://www.nasa.gov/sites/all/themes/custom/nasatwo/css/vendor.css?
  2. https://www.nasa.gov/sites/all/themes/custom/nasatwo/css/nasa.css?
  1. https://www.googletagmanager.com/ns.html?id=GTM-NLJ258M
Image format
The images are served in the AVIF, WebP format.
JavaScript defer
The are 3 javascript resources without the defer attribute.
  1. https://dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=NASA&yt=true&dclink=true
  2. https://www.nasa.gov/sites/all/themes/custom/nasatwo/js/vendor.js?
  3. https://www.nasa.gov/sites/all/themes/custom/nasatwo/js/nasa.js?
DOM size
The DOM size is optimal.
The HTML file has 54 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://www.nasa.gov/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
AmazonS3
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage does not contain any plaintext emails.
Miscellaneous
Structured data
The webpage has structured data.
      Meta viewport
      The webpage has a meta viewport tag set.
      width=device-width, initial-scale=1.0, maximum-scale=10.0
      Character set
      The webpage has a charset value set.
      utf-8
      Sitemap
      No sitemaps found.
      Social
      The webpage does not contain any social links.
      Content length
      The are less than 500 words on the webpage.
      The webpage has 355 words.
      Text to HTML ratio
      The text to HTML ratio is 26%.
      Inline CSS
      The webpage does not contain inline CSS code.
      Deprecated HTML
      There are no deprecated HTML tags on the webpage.