Explorers.gsfc.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
65% 
Page quality
30% 
Page structure
100% 
Link structure
98% 
Server
34% 
External factors
100% 
SEO Score
Response time
0.63 s
File size
15.80 kB
Words
274
Media files
7
Number of links
21 internal / 25 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Explorers Program
The page title is too short. (169 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The mission of the Explorers Program is to provide frequent flight opportunities for world-class scientific investigations from space utilizing innovative, streamlined and efficient management approaches within the following space science themes: Astronomical Search for Origins and Planetary Systems, Structure and Evolution of the Universe, The Sun-Earth Connection. The program seeks to enhance public awareness of, and appreciation for, space science and to incorporate educational and public outreach activities as integral parts of space science investigations.
The meta description is too long: 3501 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: United States of America
The following language is defined by HTML: en
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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 character encoding is not specified.
The character encoding is not specified in the HTTP header.
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
orgcode460
rnoGregory.V.Frazier
webmasterDeLee.I.Smith
descriptionThe mission of the Explorers Program is to provide frequent flight opportunities for world-class scientific investigations from space utilizing innovative, streamlined and efficient management approaches within the following space science themes: Astronomical Search for Origins and Planetary Systems, Structure and Evolution of the Universe, The Sun-Earth Connection. The program seeks to enhance public awareness of, and appreciation for, space science and to incorporate educational and public outreach activities as integral parts of space science investigations.
keywordsExplorers, Explorers Program, frequent flight opportunities, scientific investigations, space utilizing innovative, space science, Astronomical Search, Origins, Planetary Systems, Structure and Evolution, Universe, Sun-Earth Connection, public outreach, Medium-class Explorers, MIDEX, Small Explorers, SMEX, University-class, Internationals, SXG, Integral, Announcements of Opportunity, GSFC, NASA, Code 410
langen

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
Only 2 paragraph/s was/were found on this page.
There are only 274 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 30 words is high.
14.2% of the text are stop words.
The page contains a listing, which indicates a good text layout.
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)
No viewpoint tag is provided.
No Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (38). We recommend using a maximum of 6 tags for this page.
The following tag is repeated too often: launch date:
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
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
/webdesign/nasa_header_logo1.gifNASA Logo, National Aeronautics and Space Administration
/webdesign/main_header_clear.gifheader
...lorers_Astro_Org_Chart_02-07-2024_sm.pngExplorers Organization Chart
...lorers_Helio_Org_Chart_02-07-2024_sm.pngExplorers Organization Chart
/webdesign/nasalogo1.pngNASA logo
/webdesign/goddard.pngGoddard Space Flight Center
Video URLWidthHeight
https://www.youtube.com/embed/b94PaWIeG9Q420236

Page structure

H1 heading
(Critically important)
National Aeronautics and Space Administration
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 National Aeronautics and Space Administration
H2 Goddard Space Flight Center
H2 The Explorers Program
H2 NASA In the News
H2 Featured Explorers Movie
H2 Explorers Organization
H2 Explorers Missions Status
H2 Related Links
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 25 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.nasa.gov/External Subdomain IMG-ALT NASA Logo, National Aeronautics and Space Administration
https://www.nasa.gov/External Subdomain National Aeronautics and Space Administration
https://www.nasa.gov/goddard/External Subdomain Goddard Space Flight Center
https://explorers.gsfc.nasa.gov/Anchor Skip Navigation (press 2)
A-TITLE Skip Navigation
/index.htmlIMG-ALT header
https://science.nasa.gov/astro...New window External Subdomain Astrophysics Stories
https://science.nasa.gov/helio...New window External Subdomain Heliophysics Stories
https://www.nasa.gov/news/all-...New window External Subdomain New NASA Web Content
https://blogs.nasa.gov/New window External Subdomain NASA Blogs
https://www.nasa.gov/newsletters/New window External Subdomain NASA Newsletters
https://www.nasa.gov/social-me...New window External Subdomain Social Media
https://www.nasa.gov/events/New window External Subdomain Upcoming Launches
https://www.nasa.gov/feature/g...New window External Subdomain >> Feature related to movie
/organization.htmlIMG-ALT Explorers Organization Chart
/organization.htmlText duplicate IMG-ALT Explorers Organization Chart
/unex_mo_intern.htmlSubdomain Anchor CASE
/unex_mo_intern.htmlSubdomain Anchor EUVST
/unex_mo_intern.htmlSubdomain Anchor EZIE
/midex.htmlSubdomain Anchor HelioSwarm
/midex.htmlSubdomain Anchor MUSE
/smex.htmlSubdomain Anchor PUNCH
/midex.htmlSubdomain Anchor SPHEREx
/unex_mo_intern.htmlSubdomain Anchor SunRISE
/smex.htmlSubdomain Anchor TRACERS
/missions.htmlSubdomain For all Explorers Missions
https://science.nasa.gov/helio...New window External Subdomain NASA Science Heliophysics
https://science.nasa.gov/astro...New window External Subdomain NASA Science Astrophysics
https://cor.gsfc.nasa.gov/New window External Subdomain Cosmic Origins Program (COR)
https://exoplanets.nasa.gov/exep/External Subdomain Exoplanet Exploration Program (ExEP)
https://pcos.gsfc.nasa.gov/External Subdomain Physics of the Cosmos Program (PCOS)
https://ehpd.gsfc.nasa.gov/External Subdomain Explorers and Heliophysics Projects Division (EHPD)
https://lws.gsfc.nasa.gov/External Subdomain Living With a Star (LWS)
https://stp.gsfc.nasa.gov/External Subdomain Solar Terrestrial Probes (STP)
https://science.nasa.gov/about...New window External Subdomain NASA Science Plan
https://explorers.larc.nasa.go...New window External Subdomain Science Support Office: SMEX
https://nspires.nasaprs.com/ex...New window External Subdomain SMEX and Missions of Opportunity
/index.htmlHome
/missions.htmlMissions
/history.htmlHistory
/ao.htmlAnnouncement of Opportunity
/news.htmlNewsroom
/gallery.htmlImages and Multimedia
/team.htmlMeet the Team
https://www.nasa.gov/about/hig...New window External Subdomain Privacy Policy & Important Notices
https://www.nasa.gov/External Subdomain IMG-ALT NASA logo
https://www.nasa.gov/goddardExternal Subdomain Text duplicate IMG-ALT Goddard Space Flight Center

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://explorers.gsfc.nasa.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.63 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (16 kB).

HTTP Response Header

NameValue
content-typetext/html
last-modifiedTue, 16 Apr 2024 14:12:15 GMT
etag"8092915890da1:0"
serverMicrosoft-IIS/10.0
strict-transport-securitymax-age=31536000
x-ua-compatibleIE=Edge
x-frame-optionsDeny
x-content-type-optionsnosniff
dateFri, 16 Aug 2024 13:11:59 GMT
content-length16208
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 290 referring domains.
This page has 1,806 backlinks.
This page has backlinks from 261 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

explorers.gsfc.nasa.gov
Explorers Program
The mission of the Explorers Program is to provide frequent flight opportunities for world-class scientific investigations from space utilizing innovative, streamlined and efficient management approaches within the following space science themes: Astronomical Search for Origins and Planetary Systems, Structure and Evolution of the Universe, The Sun-Earth Connection. The program seeks to enhance public awareness of, and appreciation for, space science and to incorporate educational and public outreach activities as integral parts of space science investigations.

Most important keywords

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

KeywordResultRecheck
Explorers83%Check
Explorers Program71%Check
Space68%Check
Program62%Check
Explorers Missions62%Check
NASA58%Check
space science58%Check
mission55%Check
program seeks54%Check
scientific investigations space utilizing53%Check
Show more keywords and terms

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