Ilrs.gsfc.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
65% 
Page quality
78% 
Page structure
100% 
Link structure
88% 
Server
31% 
External factors
100% 
SEO Score
Response time
0.65 s
File size
23.60 kB
Words
1168
Media files
11
Number of links
79 internal / 21 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
ILRS Home Page
The page title is too short. (158 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
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
Server location: United States of America
The language is not specified in the HTML markup.
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 charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype XHTML 1.0 Transitional 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
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
This page contains 1168 words. That's ok.
28% of the text are stop words.
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
9 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 17.89 words is good.
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.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
Some tags are too long. With 71 characters this one is longer than 70 characters:
"non-presenters' registrations will be accepted until october 6th, 2023."
Image SEO
(Somewhat important)
1 images have no alt attribute. The content of alt attributes is used by search engines.
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
/images/ilrs_logo1.jpgILRS Logo, International Laser Ranging Service
/images/welcometoilrs.png#
/images/slrmap_web_nov_2017_448x275.jpgphotoalt
/about/news/Kunming_2024_100w.jpgimage of the city of Kunming, China
/about/news/Kunming_2024_325w.jpgimage of the city of Kunming, China
/about/news/lw23_ForNews.pngBanner for the 2023 International Workshop on Laser Ranging
/about/news/SLRF2020_imageForNews.pngList of analysis centers that contributed to the SLRF2020 product
/images/nasa_header_logo1.gifNASA Logo, National Aeronautics and Space Administration
/images/goddardsignature2.pngNo alt attribute provided
/images/wds_logo-1_72h.jpgWDS logoWDS logo
/images/ggos_logo.jpgIAG-GGOS logoIAG-GGOS logo

Page structure

H1 heading
(Critically important)
International Laser Ranging Service
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 International Laser Ranging Service
H2 Overview
H2 Quick Links
H2 Welcome
H2 Highlights
H2 Recent News
H2 Meetings
H2 Publications
H3 Search:
H3 More news...
Anchor text is an URL
Some anchor texts are used more than once.
There are 2 links with a trivial anchor text.
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 21 external links on this page.

Found links on this page

LinkAttributesAnchor text
/index.htmlIMG-ALT ILRS Logo, International Laser Ranging Service
/index.htmlInternational Laser Ranging Service
http://www.iag-aig.org/New window External Subdomain A service of the International Association of Geodesy
http://www.iag-aig.org/New window External Subdomain IAG
http://www.ggos.org/New window External Subdomain GGOS
https://ilrs.gsfc.nasa.gov/Anchor Skip Navigation (press 2)
A-TITLE Skip Navigation
/index.htmlIMG-ALT #
/about/index.htmlAbout ILRS
/about/news/index.htmlRecent News
/about/meetings.htmlMeetings
/about/organization/index.htmlOrganization
/about/termsofref.htmlTerms of Reference
/about/membership/index.htmlMembership
/about/reports/workshop/index....ILRS Workshops
/about/reports/index.htmlPublications & Reports
/about/links/index.htmlLinks
/about/history.htmlEarly History of ILRS
/network/index.htmlNetwork
/network/stations/index.htmlList of Stations
/network/site_information/inde...Site Information
/network/site_procedures/index...Site Procedures
/network/system_performance/in...System Performance
/network/newg/index.htmlNetworks and Engineering Standing Committee
/network/sdsg/index.htmlSpace Debris Study Group
/science/qcb/index.htmlQuality Control Board
/missions/index.htmlMissions
/missions/satellite_missions/i...List of Missions
/missions/spacecraft_parameter...Spacecraft Parameters
/missions/mission_support/inde...Mission Support
/missions/mission_operations/i...Mission Operations
/missions/mwg/index.htmlMissions Standing Committee
/science/index.htmlScience
/science/analysisCenters/index...Analysis Centers
/science/analysisProducts/inde...Analysis Products
/science/awg/index.htmlAnalysis Standing Committee
/about/reports/biblio/index.htmlBibliography
/science/dataAnalysisResources...Data Analysis Resources
/science/ILRS_LARGE_sg/index.htmlLARGE Study Group
/science/qcb/index.htmlText duplicate Quality Control Board
/science/scienceContributions/...Science Contributions
/about/reports/meeting_reports...Scientific Meetings
/science/SLR_science_campaigns...Galileo for Science
/data_and_products/index.htmlData & Products
/data_and_products/data_center...Data Centers
/data_and_products/data/index....Data
/data_and_products/products/in...Products
/data_and_products/predictions...Predictions
/data_and_products/formats/ind...Formats
/data_and_products/dc_operatio...Data Center Operations
/data_and_products/dfpwg/index...Data Formats and Procedures Standing Committee
/technology/index.htmlTechnology
/technology/laserRanging/index...Laser Ranging
/technology/groundSegment/inde...Ground Segment
/technology/spaceSegment/index...Space Segment
/technology/modeling/index.htmlModeling
/technology/software/index.htmlSoftware
/network/newg/index.htmlText duplicate Networks and Engineering Standing Committee
/technology/twg/index.htmlTransponder Standing Committee
/about/Overview.htmlOverview
http://itrf.ensg.ign.fr/New window External Subdomain International Terrestrial Reference Frame
http://www.iers.org/New window External Subdomain International Earth Rotation and Reference Systems Service
/about/Overview.htmlTrivial anchor text
Read more
/about/joinilrs.htmlJoin ILRS
/network/stations/index.htmlNetwork Map
/data_and_products/data/index....ILRS Data
/data_and_products/products/in...ILRS Products
/about/cite.htmlCite the ILRS
/docs/2016/ilrsmsr_1603.pdfMission Support Request
/network/stations/index.htmlIMG-ALT photoalt
https://23rdworkshop.casconf.cn/External Subdomain The 23rd International Workshop on Laser Ranging, Kunming - China, Oct.20th–26th, 2024
/docs/2024/1st_annoucement_KMw...23rd International Workshop on Laser Ranging will be held in Kunming, China during 20-26 October 2024
/about/news/Kunming_2024.jpgIMG-ALT image of the city of Kunming, China
https://23rdworkshop.casconf.cn/New window External Subdomain URL anchor text
https://23rdworkshop.casconf.cn/
/about/news/lw23_ForNews_large...IMG-ALT Banner for the 2023 International Workshop on Laser Ranging
/lw23/index.htmlSubdomain URL anchor text
https://ilrs.gsfc.nasa.gov/lw23/index.html
/science/dataAnalysisResources...Subdomain URL anchor text
https://ilrs.gsfc.nasa.gov/science/dataAnalysisResources/index.html
/network/site_information/inde...Subdomain URL anchor text
https://ilrs.gsfc.nasa.gov/network/site_information/index.html
https://cddis.nasa.gov/Data_an...New window External Subdomain URL anchor text
https://cddis.nasa.gov/Data_and_Derived_Products/SLR/slrf_2020.html
https://cddis.nasa.gov/Data_an...New window External Subdomain URL anchor text
https://cddis.nasa.gov/Data_and_Derived_Products/SLR/slrf_2020_DHF.html
https://www.iers.org/IERS/EN/N...New window External Subdomain Updated list of Conferences and workshops
/about/news/index.htmlMore news...
/about/news/index.htmlText duplicate Recent News
https://23rdworkshop.casconf.cn/External Subdomain Text duplicate The 23rd International Workshop on Laser Ranging, Kunming - China, Oct.20th–26th, 2024
/docs/2024/1st_annoucement_KMw...Text duplicate 23rd International Workshop on Laser Ranging will be held in Kunming, China during 20-26 October 2024
https://23rdworkshop.casconf.cn/New window External Subdomain Text duplicate URL anchor text
https://23rdworkshop.casconf.cn/
/about/news/index.htmlRead more news
/about/meetings.htmlText duplicate Meetings
https://www.fig.net/fig2024/rf...New window External Subdomain FIG Reference Frames in Practice Workshop
https://www.fig.net/fig2024/New window External Subdomain FIG Working Week 2024
https://www.enc2023.eu/New window External Subdomain European Navigation Conference 2023 (ENC 2023)
/about/reports/index.htmlNew window Publications
/about/reports/annualrpts/ilrs...2016-2019 ILRS Report
http://cddis.gsfc.nasa.gov/lw1...New window External Subdomain Proceedings from the 19th International Workshop on Laser Ranging
/about/reports/index.htmlTrivial anchor text
More
http://www.nasa.gov/New window External Subdomain IMG-ALT NASA Logo, National Aeronautics and Space Administration
http://www.nasa.gov/goddard/New window External Subdomain No Text
/about/contact_ilrs/index.htmlContact Us
http://www.nasa.gov/about/high...New window External Subdomain Privacy Policy & Important Notices
http://icsu-wds.org/New window External IMG-ALT WDS logo
http://www.iag-aig.org/New window External Subdomain IMG-ALT IAG-GGOS logo

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://ilrs.gsfc.nasa.gov/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.65 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.
This page loads 4 CSS files. This may affect the page load time negatively.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (24 kB).

HTTP Response Header

NameValue
dateFri, 10 May 2024 13:18:21 GMT
serverApache
x-frame-optionsSAMEORIGIN
strict-transport-securitymax-age=63072000; includeSubdomains; preload
last-modifiedThu, 11 Apr 2024 19:13:22 GMT
accept-rangesbytes
transfer-encodingchunked
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

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 1,628 referring domains.
This page has 126,135 backlinks.
This page has backlinks from 404 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

User-agent: *
Disallow: /ilrw19/staff_resources/

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Search preview

ilrs.gsfc.nasa.gov
ILRS Home Page

Most important keywords

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

KeywordResultRecheck
ILRS61%Check
Laser56%Check
Ranging56%Check
International56%Check
Laser Ranging56%Check
International Laser Ranging Service55%Check
Service52%Check
Satellite Laser Ranging50%Check
new49%Check
International Workshop49%Check
Show more keywords and terms

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