Nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
61% 
Page quality
88% 
Page structure
58% 
Link structure
70% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.27 s
File size
286.20 kB
Words
563
Media files
38
Number of links
53 internal / 26 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 6.6.2
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_time2025-05-13T16:01:31-04:00
video:duration359
ya:ovs:upload_date2025-05-13T05:00:03-07:00
ya:ovs:allow_embedtrue
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_time2025-05-13T16:01:31-04:00
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
og:videohttps://www.youtube.com/embed/nDmuBOBH2N4
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 563 words. That's ok.
25.4% 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.
The average number of words per sentence of 19.55 words is good.
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)
31 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/[email protected]NASA Logo
...emes/nasa/assets/images/[email protected]NASA Logo
...5/05/54492059926-ed7752a703-o.jpg?w=2048This photograph from NASA spacewalker Nichole Ayers looks to the forward portion of the International Space Station and highlights the Kibo laboratory module with the Japanese robotic arm, the SpaceX Dragon cargo spacecraft docked to the Harmony module's space-facing port, and the partially obscured SpaceX Dragon crew spacecraft docked to Harmony's forward port. The International Space Station was orbiting 260 miles above the Pacific Ocean east of the Hawaiian island chain.
...9926-ed7752a703-o.jpg?w=150&h=150&crop=1This photograph from NASA spacewalker Nichole Ayers looks to the forward portion of the International Space Station and highlights the Kibo laboratory module with the Japanese robotic arm, the SpaceX Dragon cargo spacecraft docked to the Harmony module's space-facing port, and the partially obscured SpaceX Dragon crew spacecraft docked to Harmony's forward port. The International Space Station was orbiting 260 miles above the Pacific Ocean east of the Hawaiian island chain.
...25/05/1-pia26562-e-themis-mars.png?w=468No alt attribute provided
...-STScI-01JT64HBRZZM50BCP7SEAE8JHX-6K.jpgNo alt attribute provided
...e-from-vulcan-printer-highres.jpg?w=1024No alt attribute provided
...ather/240511_青森鳥居とオーロラ_14mm_R5B01760.jpgNo alt attribute provided
...-spb-sn12-5-13-25.png?w=150&h=150&crop=1No alt attribute provided
...venus-computer-simulated-global-view.jpgNo alt attribute provided
...lip-neudeck-photo.jpg?w=150&h=150&crop=1No alt attribute provided
...25/may/milky_way_credit_bill_dunford.jpgNo alt attribute provided
.../04/STScI-01EVSG4P65KZZHCK1KJ9K32FEJ.pngNo alt attribute provided
.../2023/04/272_MarsInSight_poster-jpg.webpNo alt attribute provided
...ds/eyes/common/promotion/Eyes_noText.pngNo alt attribute provided
...ploads/2023/04/hubble_faq_image-jpg.webpNo alt attribute provided
...uploads/2025/05/iss072e125247.jpg?w=1536No alt attribute provided
...25/05/54492396655-c6ba83df1d-o.jpg?w=300No alt attribute provided
...25/05/52989316431-05353b6de9-o.jpg?w=300No alt attribute provided
...25/05/54312641779-1cbeb654f0-o.jpg?w=300No alt attribute provided
...t/uploads/2025/05/pettit-irosa.jpg?w=300No alt attribute provided
...ads/2025/05/pettit-thai-aurora.jpg?w=300No alt attribute provided
...-baikal-from-the-space-station.jpg?w=300No alt attribute provided
...20&h=1280&fit=clip&crop=faces,focalpointNo alt attribute provided
...ploads/2024/07/grbgka7wwaafx70.jpg?w=300No alt attribute provided
.../uploads/2024/10/iss072e031823.jpg?w=200No alt attribute provided
...ds/2023/01/webb-tarantula-neb.png?w=1536Space image with stars and swirls of colorful orange, red and white.
...ds/2025/04/iss073e0000481orig.jpg?w=1536No alt attribute provided
...s/2022/08/jsc2022e046413_orig.jpg?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/[email protected]NASA Logo
Video URLWidthHeight
...ube.com/embed/nDmuBOBH2N4?feature=oembed200113

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 34 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 Humans in Space
H2 Featured News
H2 Solar System Exploration
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
H3 CURRENT MISSION
H3 FUTURE MISSION
H3 FUTURE MISSION Duplicate text
H3 A Step Towards Mars
H3 Moons
H3 Mars
H3 Eyes
H3 Science Missions
H3 Today
H3 Today Duplicate text
H3 NASA Spacewalkers Gallery
H3 Astronaut Don Pettit’s Photos from Space Gallery
H3 Astronaut Matthew Dominick’s Photos from Space Gallery
H3 Earth Information Center
H3 Missions
H3 Humans In Space
H3 Earth
H3 Our Solar System
H3 Universe
H3 Science Missions Duplicate text
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 too many external links (26) 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
/blogs/spacestation/Subdomain Space Station Updates
/mission/expedition-73/Subdomain Expedition 73
/news-release/nasa-partners-to...Subdomain Axiom Mission 4
/mission/nasas-spacex-crew-11/Subdomain NASA’s SpaceX Crew-11
/news/recently-published/Subdomain Recently Published
/missions/europa-clipper/nasas...Subdomain Article 5 Min Read NASA’s Europa Clipper Captures Mars in Infrared
https://science.nasa.gov/missi...External Subdomain Article 5 Min Read NASA’s Webb Reveals New Details, Mysteries in Jupiter’s Aurora
/directorates/stmd/nasa-enable...Subdomain Article 5 Min Read NASA Enables Construction Technology for Moon and Mars Exploration
https://science.nasa.gov/scien...External Subdomain Article 6 Min Read What NASA Is Learning from the Biggest Geomagnetic Storm in 20 Years
/blogs/wallops/2025/05/13/nasa...Subdomain 3 Min Read NASA Safely Ends Second Super Pressure Balloon Test Flight  Blog
https://science.nasa.gov/scien...External Subdomain 3 Min Read NASA Study Reveals Venus Crust Surprise Article
/technology/meet-four-nasa-inv...Subdomain 3 Min Read Meet Four NASA Inventors Improving Life on Earth and Beyond Article
https://science.nasa.gov/solar...External Subdomain 6 Min Read What’s Up: May 2025 Skywatching Tips from NASA Article
/humans-in-space/chapea/Subdomain Crew Health and Performance Exploration Analog
https://science.nasa.gov/solar...External Subdomain Discover More
https://science.nasa.gov/solar...External Subdomain Moons
https://science.nasa.gov/mars/External Subdomain Mars
https://science.nasa.gov/eyes/External Subdomain Eyes
https://science.nasa.gov/scien...External Subdomain Science Missions
/image-of-the-day/Subdomain Browse Image Archive
/wp-content/uploads/2025/05/is...Subdomain No Text
/image-detail/gmt302_19_11_don...Subdomain View image
/gallery/nasa-spacewalkers/Subdomain NASA Spacewalkers Gallery 24 Images
/gallery/astronaut-don-pettits...Subdomain Astronaut Don Pettit’s Photos from Space Gallery 24 Images
/gallery/astronaut-matthew-dom...Subdomain Astronaut Matthew Dominick’s Photos from Space Gallery 24 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 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 Text duplicate 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 0.27 seconds.
The file size of the HTML document is fine (286 kB).

HTTP Response Header

NameValue
servernginx
dateTue, 13 May 2025 23:48:45 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
x-cacheHIT
cache-controlmax-age=300, must-revalidate
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
Space58%Check
Image58%Check
Space Exploration55%Check
FUTURE54%Check
Images52%Check
Aeronautics51%Check
Exploration50%Check
News50%Check
Space Station50%Check
Show more keywords and terms

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Cookie Policy

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