Nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
61% 
Page quality
66% 
Page structure
58% 
Link structure
70% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.38 s
File size
339.20 kB
Words
567
Media files
39
Number of links
55 internal / 24 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
NASA
The page title is too short. (54 pixels of 580 max pixel length) Optimize title
The page title is only one word.
There are no duplicate words in the title
Meta description
(Critically important)
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.
The meta description is too long: 1087 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.nasa.gov/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1
descriptionNASA.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.
robotsfollow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
application-nameNASA
msapplication-TileColor#da532c
theme-color#ffffff
msapplication-TileImagehttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/mstile-144x144.png
msapplication-confighttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/browserconfig.xml
msapplication-square70x70logohttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/mstile-70x70.png
msapplication-square150x150logohttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/mstile-150x150.png
msapplication-wide310x150logohttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/mstile-310x150.png
msapplication-square310x310logohttps://www.nasa.gov/wp-content/plugins/nasa-hds-core-setup/assets/favicons/mstile-310x310.png
generatorWordPress 6.7.2
searchgov_custom11::128943
searchgov_custom2Empty
searchgov_custom3page
keywordsEmpty
parsely-titleNASA
parsely-linkhttps://www.nasa.gov
parsely-typeindex
article:published_time2022-12-07T13:25:23-05:00
article:modified_time2025-07-21T15:04:51-04:00
langen-us
twitter:cardsummary_large_image
twitter:titleNASA
twitter:descriptionNASA.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.
twitter:imagehttps://www.nasa.gov/wp-content/uploads/2018/07/174116main_2006_01777_highres.jpg
og:localeen_US
og:typewebsite
og:titleNASA
og:descriptionNASA.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.
og:urlhttps://www.nasa.gov/
og:site_nameNASA
og:updated_time2025-07-21T15:04:51-04:00
og:imagehttps://www.nasa.gov/wp-content/uploads/2018/07/174116main_2006_01777_highres.jpg
og:image:secure_urlhttps://www.nasa.gov/wp-content/uploads/2018/07/174116main_2006_01777_highres.jpg
og:image:width1024
og:image:height819
og:image:altNASA Meatball paint refresh
og:image:typeimage/jpeg
charsetUTF-8

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Page quality

Content
(Critically important)
The average number of words per sentence of 35.83 words is high.
This page contains 567 words. That's ok.
27% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 11 tags for this page.
Image SEO
(Somewhat important)
34 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...emes/nasa/assets/images/nasa-logo@2x.pngNASA Logo
...emes/nasa/assets/images/nasa-logo@2x.pngNASA Logo
...nt/uploads/2025/07/1-insar-16.jpg?w=2048No alt attribute provided
...025/07/1-insar-16.jpg?w=150&h=150&crop=1No alt attribute provided
...ia26484-io-north-polar-region.png?w=1024No alt attribute provided
...zie-lystrup-portrait-sed-4683.webp?w=805No alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...057/KSC-20250717-PH-KLS01_0057~large.jpgNo alt attribute provided
...-sensorcraft-v2-2.png?w=150&h=150&crop=1No alt attribute provided
...lusters/Hubble_Abell209_potw2527a_sm.jpgNo alt attribute provided
...20&h=1282&fit=clip&crop=faces,focalpointNo alt attribute provided
...g 2_credit_Bill Dunford_CC BY-NC 2.0.jpgNo alt attribute provided
...5/07/54658919027-2ce4c99e48-o.jpg?w=2048No alt attribute provided
...2/12/51476067951-e10dfb6875-o.jpg?w=1024No alt attribute provided
...3/01/53906743054-80f4972233-o.jpg?w=1024No alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...nt/uploads/2023/02/moon-mars.jpeg?w=1024No alt attribute provided
.../uploads/2025/07/pia17172orig.jpg?w=1536No alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...10&h=1144&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1283&fit=clip&crop=faces,focalpointNo alt attribute provided
...00&h=1600&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...20&h=1275&fit=clip&crop=faces,focalpointNo alt attribute provided
...ds/2023/01/webb-tarantula-neb.png?w=1536Space image with stars and swirls of colorful orange, red and white.
...025/07/bloom-pce-20250621-lrg.jpg?w=1446No alt attribute provided
...ci-01gfryyrtctmx197by86mbfcr9.png?w=1024No alt attribute provided
...2/12/51476067951-e10dfb6875-o.jpg?w=1024No alt attribute provided
.../GSFC_20171208_Archive_e001016~large.jpgNo alt attribute provided
.../06/solar-system-illustration-16x9-1.jpgNo alt attribute provided
...uploads/2023/09/ngc5068-1-flat-final.jpgNo alt attribute provided
...ploads/2023/04/hubble_faq_image-jpg.webpNo alt attribute provided
...t/uploads/2024/01/p23-168-087.jpg?w=1024No alt attribute provided
...oads/2022/12/nasa_technology1.png?w=1017No alt attribute provided
...emes/nasa/assets/images/nasa-logo@2x.pngNASA Logo

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 35 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 Suggested Searches
H2 Unprecedented Views of Earth
H2 Featured News
H2 Meet the Crew
H2 Humans in Space
H2 Image Of The Day
H2 Image Of The Day Duplicate text
H2 More NASA Images
H2 Explore the Universe from your Inbox
H2 Explore our changing planet
H2 More Topics from NASA
H2 Was this page helpful?
H3 joint mission
H3 MONITORING EARTH
H3 fine-resolution images
H3 Humans In Space
H3 Living in Space
H3 Why Go to Space
H3 Destinations
H3 Today
H3 Today Duplicate text
H3 Wildlife Birds Gallery
H3 Wildlife Mammals Gallery
H3 Wildlife Insects Gallery
H3 Earth Information Center
H3 Missions
H3 Humans In Space Duplicate text
H3 Earth
H3 Our Solar System
H3 Universe
H3 Science Missions
H3 Aeronautics
H3 Technology
H3 National Aeronautics and Space Administration
H3 Follow NASA
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
1 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 24 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.nasa.gov/Subdomain IMG-ALT NASA Logo
https://www.nasa.gov/Subdomain Text duplicate IMG-ALT NASA Logo
https://plus.nasa.gov/External Subdomain NASA+
/?search=Climate ChangeSubdomain Climate Change
/?search=ArtemisSubdomain Artemis
/?search=Expedition 64Subdomain Expedition 64
/?search=Mars perseveranceSubdomain Mars perseverance
/?search=SpaceX Crew-2Subdomain SpaceX Crew-2
/?search=International Space S...Subdomain International Space Station
/a-to-z-topics-listing/Subdomain View All Topics A-Z
https://science.nasa.gov/blogs...External Subdomain Mission Updates
https://nisar.jpl.nasa.gov/mis...External Subdomain ISRO Partnership
/missions/nisar/5-things-to-kn...Subdomain 5 Things to Know
https://nisar.jpl.nasa.gov/mis...External Subdomain Synthetic Aperture Radar
/news/recently-published/Subdomain Recently Published
/missions/juno/nasa-shares-how...Subdomain Article 5 Min Read NASA Shares How to Save Camera 370-Million-Miles Away Near Jupiter
/news-release/nasa-goddard-cen...Subdomain News Release 3 Min Read NASA Goddard Center Director Makenzie Lystrup Set to Depart
/blogs/spacestation/2025/07/21...Subdomain Blog 4 Min Read Bone and Robotics Research Informing Future Missions as Crew Nears Departure
https://science.nasa.gov/blogs...External Subdomain Blog 3 Min Read NASA Conducts Solar Array Testing on Interstellar Mapping Spacecraft
/centers-and-facilities/langle...Subdomain 4 Min Read NASA Tests Scalable Satellite Tech to Launch Sensors Quicker Article
https://science.nasa.gov/missi...External Subdomain 2 Min Read Hubble Snaps Galaxy Cluster’s Portrait Article
/missions/station/commercial-c...Subdomain 6 Min Read What You Need to Know About NASA’s SpaceX Crew-11 Mission Article
https://science.nasa.gov/solar...External Subdomain 5 Min Read What’s Up: July 2025 Skywatching Tips from NASA Article
https://nisar.jpl.nasa.gov/External Subdomain Listen about Meet the Crew
/humans-in-space/Subdomain Discover More
/humans-in-space/Subdomain Humans In Space
/humans-in-space/living-in-space/Subdomain Living in Space
/humans-in-space/why-go-to-space/Subdomain Why Go to Space
/humans-in-space/destinations/Subdomain Destinations
/image-of-the-day/Subdomain Browse Image Archive
/wp-content/uploads/2025/07/pi...Subdomain No Text
/image-detail/pia17172orig/Subdomain View image
/gallery/wildlife-birds/Subdomain Wildlife Birds Gallery 18 Images
/gallery/wildlife-mammals/Subdomain Wildlife Mammals Gallery 19 Images
/gallery/wildlife-insects/Subdomain Wildlife Insects Gallery 16 Images
https://www.nasa.gov/privacy/Subdomain Privacy Policy
https://lp.constantcontactpage...External Subdomain Sign Up
https://earth.gov/External Earth Science about Explore our changing planet
/nasa-missions/Subdomain Missions
/humans-in-space/Subdomain Text duplicate Humans In Space
https://science.nasa.gov/earth/External Subdomain Earth
https://science.nasa.gov/solar...External Subdomain Our Solar System
https://science.nasa.gov/unive...External Subdomain Universe
https://science.nasa.gov/scien...External Subdomain Science Missions
https://www.nasa.gov/aeronautics/Subdomain Aeronautics
https://www.nasa.gov/technology/Subdomain Technology
https://www.nasa.gov/about/Subdomain About NASA's Mission
/get-involved/Subdomain Join Us
https://www.nasa.gov/Subdomain Home
https://www.nasa.gov/news/Subdomain News & Events
https://www.nasa.gov/multimedia/Subdomain Multimedia
https://plus.nasa.gov/External Subdomain Text duplicate NASA+
/nasa-missions/Subdomain Text duplicate Missions
/humans-in-space/Subdomain Humans in Space
https://science.nasa.gov/earth/External Subdomain Text duplicate Earth
https://science.nasa.gov/solar...External Subdomain The Solar System
https://science.nasa.gov/unive...External Subdomain The Universe
https://science.nasa.gov/External Subdomain Science
https://www.nasa.gov/aeronautics/Subdomain Text duplicate Aeronautics
https://www.nasa.gov/technology/Subdomain Text duplicate Technology
/learning-resources/Subdomain Learning Resources
https://www.nasa.gov/about/Subdomain About NASA
https://www.nasa.gov/es/New window Subdomain NASA en Español
https://www.facebook.com/NASANew window External Subdomain A-TITLE NASA on Facebook
https://www.instagram.com/nasa/New window External Subdomain A-TITLE NASA on Instagram
https://x.com/NASANew window External A-TITLE NASA on X
https://www.youtube.com/@NASANew window External Subdomain A-TITLE NASA on YouTube
/social-media/Subdomain More NASA Social Accounts
/nasa-newsletters/Subdomain NASA Newsletters
https://www.nasa.gov/sitemap/Subdomain Sitemap
/news/nasa-media-contacts/Subdomain For Media
/nasa-web-privacy-policy-and-i...Subdomain Text duplicate Privacy Policy
https://www.nasa.gov/foia/Subdomain FOIA
https://www.nasa.gov/no-fear-act/Subdomain No FEAR Act
http://oig.nasa.gov/New window External Subdomain Office of the IG
/budgets-plans-and-reports/Subdomain Budget & Annual Reports
/organizations/budget-annual-r...Subdomain Agency Financial Reports
/contact-nasa/Subdomain Contact NASA
/accessibility/Subdomain Accessibility

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.nasa.gov/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.38 seconds.
The file size of the HTML document is fine (339 kB).

HTTP Response Header

NameValue
servernginx
dateTue, 22 Jul 2025 00:13:36 GMT
content-typetext/html; charset=UTF-8
varyAccept-Encoding
host-headera9130478a60e5f9135f765b23f26593b
x-launch-statusGo Flight!
x-frame-optionsSAMEORIGIN
link<https://www.nasa.gov/wp-json/>; rel="https://api.w.org/"
content-encodingbr
x-rqvie1 0 40 9980
accept-rangesbytes
cache-controlmax-age=300, must-revalidate
x-cacheHIT
strict-transport-securitymax-age=31536000;includeSubdomains;preload
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 24,457 referring domains.
This page has 1,763,019 backlinks.
This page has backlinks from 16,699 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: usasearch
Crawl-delay: 1
Allow: /

User-agent: *
Allow: /

Similar sites

Search preview

www.nasa.gov
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.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
NASA81%Check
Image58%Check
Space56%Check
images56%Check
Aeronautics51%Check
News50%Check
Search50%Check
Latest News48%Check
International Space47%Check
Space Station47%Check
Show more keywords and terms

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Cookie Policy

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