Slab.stanford.edu - SEO Checker

Overview of the SEO Check
Meta information
79% 
Page quality
41% 
Page structure
79% 
Link structure
86% 
Server
88% 
External factors
66% 
SEO Score
Response time
0.66 s
File size
59.10 kB
Words
458
Media files
9
Number of links
17 internal / 31 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Space Rendezvous Laboratory
The length of the page title is perfect. (279 pixels out of 580 max pixel length)
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)
https://slab.stanford.edu/
There is a valid canonical link 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 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
GeneratorDrupal 10 (https://www.drupal.org)
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
application-nameStanford University
msapplication-TileColor#FFFFFF
msapplication-TileImagehttps://www-media.stanford.edu/assets/favicon/mstile-144x144.png
msapplication-square70x70logohttps://www-media.stanford.edu/assets/favicon/mstile-70x70.png
msapplication-square150x150logohttps://www-media.stanford.edu/assets/favicon/mstile-150x150.png
msapplication-square310x310logohttps://www-media.stanford.edu/assets/favicon/mstile-310x310.png
langen
twitter:cardsummary_large_image
twitter:titleSpace Rendezvous Laboratory
twitter:imagehttps://slab.stanford.edu/sites/g/files/sbiybj25201/files/styles/large/public/media/image/slab-homepage-banner-new_0.png?itok=03Tp1D2i
og:site_nameSpace Rendezvous Laboratory
og:typewebsite
og:urlhttps://slab.stanford.edu/
og:titleSpace Rendezvous Laboratory
og:imagehttps://slab.stanford.edu/sites/g/files/sbiybj25201/files/styles/large/public/media/image/slab-homepage-banner-new_0.png?itok=03Tp1D2i
og:image:urlhttps://slab.stanford.edu/sites/g/files/sbiybj25201/files/styles/large/public/media/image/slab-homepage-banner-new_0.png?itok=03Tp1D2i
charsetutf-8

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Page quality

Content
(Critically important)
Only 2 paragraph/s was/were found on this page.
There are only 458 words on this page. Good pages should have about 800 words of useful content.
The average number of words per sentence of 31.63 words is high.
27.9% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
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)
A viewport "width=device-width, initial-scale=1.0" 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 9 tags for this page.
Image SEO
(Somewhat important)
7 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
...-homepage-banner-new_0.png?itok=YiZBUXR3No alt attribute provided
...ia/image/slab-damico_2.png?itok=QBhNNOwwForeword by Professor Simone D'Amico
...mbnail_mdot.jpg?h=8f14f206&itok=UcExfdxNNo alt attribute provided
...e/falcon_0.jpeg?h=cde208e5&itok=fK012rNuNo alt attribute provided
..._jpmorgan_0.jpg?h=312fc7ac&itok=riD4D48SNo alt attribute provided
...go_caesar_1.jpg?h=b8ccb851&itok=Tb5TNoqTNo alt attribute provided
..._iac2024_0.jpeg?h=d71e09c7&itok=UKBOeONlNo alt attribute provided
...on_award_0.jpeg?h=d1cb525d&itok=C7tIL1jMNo alt attribute provided
...-04/slab-flag-hifi-light-transparent.pngSpace Rendezvous Laboratory

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 Latest Happenings in SLAB
H2 Address
H2 Links for SLAB Members
H2 Links to Stanford Sites
H3 Yuji and Zahra presenting at the Planetary Science and Exploration Seminar
H3 Justin and Prof. D'Amio heading to double-program review with AFOSR
H3 Presentation to International Council of JP Morgan
H3 The rise of AI for RPOD
H3 Astroscale using our research for RPO
H3 Justin wins ION Bradford W. Parkinson Award
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.
The number of internal links is ok.
None of the anchor texts is too long.
There are too many external links (31) on this page.
LinkAttributesAnchor text
https://slab.stanford.edu/Anchor Skip to main content
https://slab.stanford.edu/Anchor Skip to secondary navigation
https://stanford.edu/External Stanford University (link is external)
https://slab.stanford.edu/Subdomain Stanford Space Rendezvous Laboratory
https://slab.stanford.edu/homeHome
A-TITLE Home page of the Stanford Space Rendezvous Lab
https://slab.sites.stanford.ed...External Subdomain About
A-TITLE About the Stanford Space Rendezvous Lab
https://slab.sites.stanford.ed...External Subdomain Projects
A-TITLE Projects and Research Foci in the Lab
https://slab.sites.stanford.ed...External Subdomain Publications
A-TITLE Journal papers, conference proceedings, and other articles
https://slab.sites.stanford.ed...External Subdomain People
A-TITLE People of the Stanford Space Rendezvous Lab
https://slab.sites.stanford.ed...External Subdomain News
A-TITLE Latest happenings in the Stanford Space Rendezvous Lab
https://slab.sites.stanford.ed...External Subdomain Gallery
A-TITLE A photo gallery of our people at SLAB
https://slab.sites.stanford.ed...External Subdomain Videos
A-TITLE Link to our videos!
https://www.jpl.nasa.gov/missi...External Subdomain GRACE (2003)
https://earth.esa.int/web/eopo...External Subdomain TanDEM-X (2010)
https://earth.esa.int/web/eopo...External Subdomain PRISMA (2010)
https://www.dlr.de/content/en/...External Subdomain BIROS (2016)
https://slab.sites.stanford.ed...External Subdomain STARLING (2023)
https://slab.sites.stanford.ed...External Subdomain SWARM-EX (2024)
https://slab.sites.stanford.ed...External Subdomain VISORS (2024)
/news/yuji-and-zahra-presentin...Subdomain Yuji and Zahra presenting at the Planetary Science and Exploration Seminar
/news/studentsStudents
/news/justin-and-prof-damio-he...Subdomain Justin and Prof. D'Amio heading to double-program review with AFOSR
/news/facultyFaculty
/news/presentation-internation...Subdomain Presentation to International Council of JP Morgan
/news/facultyText duplicate Faculty
/news/rise-ai-rpodSubdomain The rise of AI for RPOD
/news/lab-projectsLab Projects
/news/astroscale-using-our-res...Subdomain Astroscale using our research for RPO
/news/justin-wins-ion-bradford...Subdomain Justin wins ION Bradford W. Parkinson Award
/news/studentsText duplicate Students
https://slab.stanford.edu/Subdomain IMG-ALT Space Rendezvous Laboratory
/saml/login?destination=/Login for SLAB Members
https://gitlab.slab.stanford.edu/External Subdomain SLAB Gitlab
https://owncloud.slab.stanford...External Subdomain SLAB OwnCloud
https://www.stanford.edu/External Subdomain Stanford University
https://engineering.stanford.edu/External Subdomain Stanford School of Engineering
https://aa.stanford.edu/External Subdomain Department of Aeronautics and Astronautics
https://www.stanford.edu/External Subdomain Text duplicate Stanford University (link is external)
https://www.stanford.edu/Nofollow External Subdomain Stanford Home (link is external)
https://visit.stanford.edu/bas...Nofollow External Subdomain Maps & Directions (link is external)
https://www.stanford.edu/search/Nofollow External Subdomain Search Stanford (link is external)
https://emergency.stanford.edu/Nofollow External Subdomain Emergency Info (link is external)
https://www.stanford.edu/site/...Nofollow External Subdomain Terms of Use (link is external)
A-TITLE Terms of use for sites
https://www.stanford.edu/site/...Nofollow External Subdomain Privacy (link is external)
A-TITLE Privacy and cookie policy
https://uit.stanford.edu/secur...Nofollow External Subdomain Copyright (link is external)
A-TITLE Report alleged copyright infringement
https://adminguide.stanford.ed...Nofollow External Subdomain Trademarks (link is external)
A-TITLE Ownership and use of Stanford trademarks and images
https://non-discrimination.sta...Nofollow External Subdomain Non-Discrimination (link is external)
A-TITLE Non-discrimination policy
https://www.stanford.edu/site/...Nofollow External Subdomain Accessibility (link is external)
A-TITLE Report web accessibility issues

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://slab.stanford.edu/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.66 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 (59 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
content-length10908
x-drupal-dynamic-cacheMISS
content-languageen
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
last-modifiedThu, 07 Nov 2024 12:53:03 GMT
etag"1730983983"
x-generatorDrupal 10 (https://www.drupal.org)
x-consumer-idc51ba9bc-5a89-4acd-9915-5716b2e239aa
x-drupal-cacheMISS
access-control-allow-origin*
content-encodinggzip
x-request-idv-39ed2c26-9d07-11ef-befb-5f33f1e2b11e
x-ah-environment01live
x-cache-hits190
x-age221539
accept-rangesbytes
cache-controlpublic, max-age=60
expiresWed, 13 Nov 2024 01:29:29 GMT
dateWed, 13 Nov 2024 01:28:29 GMT
varyAccept-Encoding
strict-transport-securitymax-age=15768000
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 22 referring domains.
This page only has 66 backlinks.
This page only has few backlinks from 22 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
Crawl-delay: 30
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed
# Block saml paths links
Disallow: /sso/login
Disallow: /saml_login
Disallow: /saml/login
Disallow: /saml/acs
# Block Femtosearch
User-agent: FemtosearchBot
Crawl-Delay: 120
Disallow: /
# Block SemrushBot
User-agent: SemrushBot
Crawl-Delay: 120
Disallow: /

Search preview

slab.stanford.edu
Space Rendezvous Laboratory

Most important keywords

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

KeywordResultRecheck
Lab74%Check
SLAB61%Check
Stanford56%Check
Space52%Check
Rendezvous52%Check
Laboratory52%Check
Space Rendezvous Laboratory52%Check
SLAB Members51%Check
Stanford University45%Check
Justin44%Check

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