Jpl.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
68% 
Page structure
95% 
Link structure
52% 
Server
74% 
External factors
100% 
SEO Score
Response time
0.76 s
File size
690.00 kB
Words
1208
Media files
44
Number of links
108 internal / 31 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
NASA Jet Propulsion Laboratory (JPL) - Robotic Space Exploration | NASA Jet Propulsion Laboratory (JPL)
The page title should be shorter than 580 pixels. It is 959 pixels long. Optimize title
There are word repetitions in the page title.
Meta description
(Critically important)
Space mission and science news, images and videos from NASA's Jet Propulsion Laboratory (JPL), the leading center for robotic exploration of the solar system.
The length of the meta description is perfect. (991 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.jpl.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)
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
viewportwidth=device-width, initial-scale=1
msapplication - TileColor#ba0c2f
msapplication - TileImage/ms-icon-144x144.png
theme - color#ba0c2f
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionSpace mission and science news, images and videos from NASA's Jet Propulsion Laboratory (JPL), the leading center for robotic exploration of the solar system.
langen-us
twitter:titleNASA Jet Propulsion Laboratory (JPL) - Robotic Space Exploration
twitter:descriptionSpace mission and science news, images and videos from NASA's Jet Propulsion Laboratory (JPL), the leading center for robotic exploration of the solar system.
twitter:imagehttps://www.jpl.nasa.gov/img/og.png
twitter:cardsummary_large_image
og:typewebsite
og:titleNASA Jet Propulsion Laboratory (JPL) - Robotic Space Exploration
og:descriptionSpace mission and science news, images and videos from NASA's Jet Propulsion Laboratory (JPL), the leading center for robotic exploration of the solar system.
og:imagehttps://www.jpl.nasa.gov/img/og.png
og:site_nameNASA Jet Propulsion Laboratory (JPL)
og:urlhttps://www.jpl.nasa.gov/
og:localeen_US
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 1208 words. That's ok.
13.3% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
3 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 20.25 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
The file size of the HTML document is very large (690 kB).
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 24 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)
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
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/_nuxt/logo-tribrand-color.CrK_FdfP.svgJPL Logo
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...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
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...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
...e16d0ba.fill-512x288-c70.format-jpeg.jpgNo alt attribute provided
...ay-1600px.2c48d329.fill-1024x306-c50.jpgNo alt attribute provided
.../VT_thumb.2c46fe44.fill-640x360-c100.jpgNo alt attribute provided
...et/images/Earth-800h-v2_02.width-768.pngNo alt attribute provided
...et/images/moon-transparent.width-768.pngNo alt attribute provided
...net/images/Mars-800h-v2_02.width-768.pngNo alt attribute provided
.../images/Jupiter-800h-v2_02.width-768.pngNo alt attribute provided
...t/images/Europa-800h-v2_02.width-768.pngNo alt attribute provided
...esta-highlights-800h-v2_02.width-768.pngNo alt attribute provided
...highlights-800h-v4c-saturn.width-768.pngNo alt attribute provided
...highlights-interstellar-v3.width-768.pngNo alt attribute provided
...-800h-v6-public-exoplanets.width-768.pngNo alt attribute provided
...hts-800h-antennae-galaxies.width-768.pngNo alt attribute provided
...ges/fido-white-bg-homepage.width-640.jpgNo alt attribute provided
...ges/fido-white-bg-homepage.width-640.jpgNo alt attribute provided
...e16d0ba.fill-490x430-c70.format-jpeg.jpgNo alt attribute provided
...243ad60.fill-490x430-c70.format-jpeg.jpgNo alt attribute provided
...e16d0ba.fill-490x430-c70.format-jpeg.jpgNo alt attribute provided
data:[...] Base64JPL Logo
data:[...] Base64JPL Logo
Video URLWidthHeight
.../media/2_DMs_higher_in_frame_slower.webm
...2w21t.cloudfront.net/media/Eagle_7_.webm
...dfront.net/media/Ingenuity-flight-54.m4v
...ront.net/media/OMB_clip_for_carousel.m4v
...1t.cloudfront.net/media/Clipper_7_d.webm
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Page structure

H1 heading
(Critically important)
Jet Propulsion Laboratory
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.

Heading structure

Heading levelContent
H1 Jet Propulsion Laboratory
H2 Latest News
H2 Jet Propulsion Laboratory Duplicate text
H2 Exploring the Universe
H2 NeBula-SPOT
H2 ENGAGE WITH JPL
Some internal link anchor texts are too long.
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.
2 links don't have an anchor text.
The number of internal links is ok.
There are too many external links (31) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.jpl.nasa.gov/JPL
https://www.jpl.jobs/New window External Subdomain Careers
https://www.jpl.nasa.gov/edu/New window Subdomain Education
/science-and-technology/New window Subdomain Science & Technology
https://www.nasa.gov/New window External Subdomain A-TITLE NASA
https://www.jpl.nasa.gov/A-TITLE JPL Home
https://www.nasa.gov/New window External Subdomain Text duplicate A-TITLE NASA
https://www.jpl.nasa.gov/Text duplicate A-TITLE JPL Home
/topics/robotics/Creating robots to go where humans can’t
/topics/stars-and-galaxies/Subdomain Exploring the universe and searching for new worlds
/topics/solar-system/Exploring our solar system
/topics/earth/Studying our home planet from air and space
/topics/mars/Looking for life beyond Earth
/topics/technology/Developing technology to improve life on Earth
/topics/robotics/Text duplicate Creating robots to go where humans can’t
/topics/stars-and-galaxies/New window Subdomain Text duplicate Exploring the universe and searching for new worlds
/topics/solar-system/Text duplicate Exploring our solar system
/topics/earth/Text duplicate Studying our home planet from air and space
/topics/mars/Text duplicate Looking for life beyond Earth
/topics/technology/Text duplicate Developing technology to improve life on Earth
/missions/Subdomain MISSIONS
/missions/mars-2020-perseveran...Subdomain TIME ON MARS
https://eyes.nasa.gov/dsn/dsn....New window External Subdomain DEEP SPACE NETWORK
/asteroid-watch/next-five-appr...Subdomain ASTEROID WATCH
/asteroid-watch/next-five-appr...No Text
/news/jpl-to-transition-to-ful...JPL Life. JPL to Transition to Fully Onsite Work
/news/nasa-french-satellite-sp...Earth. NASA-French Satellite Spots Large-Scale River Waves for First Time
/news/devils-in-details-in-sel...Mars. Devil’s in Details in Selfie Taken by NASA’s Mars Perseverance Rover
/news/nasas-perseverance-mars-...Mars. NASA’s Perseverance Mars Rover to Take Bite Out of ‘Krokodillen’
/news/nasa-french-swot-satelli...Earth. NASA, French SWOT Satellite Offers Big View of Small Ocean Features
/news/nasa-observes-first-visi...Mars. NASA Observes First Visible-light Auroras at Mars
/news/nasas-magellan-mission-r...Solar System. NASA’s Magellan Mission Reveals Possible Tectonic Activity on Venus
/news/nasas-voyager-1-revives-...Solar System. NASA’s Voyager 1 Revives Backup Thrusters Before Command Pause
/news/nasa-studies-reveal-hidd...Solar System. NASA Studies Reveal Hidden Secrets About Interiors of Moon, Vesta
/news/nasas-europa-clipper-cap...Solar System. NASA’s Europa Clipper Captures Mars in Infrared
/news/dave-gallagher-named-11t...JPL Life. Dave Gallagher Named 11th Director of JPL as Laurie Leshin Steps Down
/news/nasas-spherex-space-tele...Stars and Galaxies. NASA’s SPHEREx Space Telescope Begins Capturing Entire Sky
/news/nasas-juno-mission-gets-...Solar System. NASA’s Juno Mission Gets Under Jupiter’s and Io’s Surface
/news/nasas-newest-space-teles...Stars and Galaxies. NASA’s Newest Space Telescope Recognized at New York Stock Exchange
/news/nasa-tests-key-spacesuit...Technology. NASA Tests Key Spacesuit Parts Inside This Icy Chamber
/news/nasa-orbiter-spots-curio...Mars. NASA Orbiter Spots Curiosity Rover Making Tracks to Next Science Stop
/news/nasa-airborne-sensors-wi...Earth. NASA Airborne Sensor’s Wildfire Data Helps Firefighters Take Action
/who-we-are/Learn more
/virtual-tour/New window Subdomain No Text
/virtual-tour/New window Subdomain Take the tour
/missions/All Missions
/topics/earth/Earth Current missions: 22 Past missions: 35 Explore
/topics/solar-system/Earth's Moon Current missions: 3 Past missions: 19 Explore
/topics/mars/Mars Current missions: 4 Past missions: 19 Explore
/topics/solar-system/Jupiter Current missions: 2 Past missions: 1 Explore
/topics/solar-system/Europa Current missions: 1 Past missions: 1 Explore
/topics/asteroids/Asteroids and Comets Current missions: 1 Past missions: 9 Explore
/topics/solar-system/Saturn Current missions: 0 Past missions: 1 Explore
/topics/stars-and-galaxies/Interstellar Space Current missions: 2 Past missions: 0 Explore
/topics/exoplanets/Exoplanets Current missions: 1 Past missions: 6 Explore
/topics/stars-and-galaxies/Stars and Galaxies Current missions: 6 Past missions: 8 Explore
/robotics-at-jpl/nebula-spot/Meet NeBula-SPOT
/robotics-at-jpl/See All Robots
https://jpl.nasa.gov/events/New window Subdomain Calendar. Events
/jpl-and-the-community/JPL and the Community
/jpl-and-the-community/lecture...Lecture Series
/topics/jpl-life/is a place for Dreamers Artists Communicators Designers Educators Innovators Inventors Makers Problem Solvers Roboticists Scientists Engineers Thinkers Visua...
IMG-ALT JPL Logo
A-TITLE JPL Life
/who-we-are/Who We Are
/who-we-are/faces-of-leadershi...Directors
https://www.jpl.jobs/External Subdomain Text duplicate Careers
/edu/intern/Subdomain Internships
/who-we-are/history/The JPL Story
/timeline/Subdomain JPL Achievements
/who-we-are/documentary-series...Documentary Series
/annual-report/JPL Annual Report
/who-we-are/executive-council/Executive Council
/missions/?mission_status=currentSubdomain Current
/missions/?mission_status=pastSubdomain Past
/missions/?mission_status=futureSubdomain Future
/missions/All
https://www.jpl.nasa.gov/news/Text duplicate All
/news/?topics=EarthSubdomain Earth
/news/?topics=Solar SystemSubdomain Solar System
/news/?topics=Stars and GalaxiesSubdomain Stars and Galaxies
https://www.jpl.nasa.gov/signup/Subdomain Subscribe to JPL News
https://www.jpl.nasa.gov/images/Images
https://www.jpl.nasa.gov/videos/Videos
https://www.jpl.nasa.gov/audio/Audio
/podcasts/Podcasts
https://www.jpl.nasa.gov/apps/Apps
/galleries/visions-of-the-future/Visions of the Future
/who-we-are/slice-of-history/Slice of History
/robotics-at-jpl/Robotics at JPL
/jpl-and-the-community/lecture...Text duplicate Lecture Series
/jpl-and-the-community/team-co...Team Competitions
/jpl-and-the-community/jpl-spe...Speakers Bureau
https://www.jpl.nasa.gov/events/Calendar
/events/tours/Subdomain Public Tours
/virtual-tour/Subdomain Virtual Tour
/jpl-and-the-community/directi...Directions and Maps
/topics/jpl-life/JPL Life
/topics/solar-system/Text duplicate Solar System
/topics/mars/Mars
/topics/earth/Text duplicate Earth
/topics/climate-change/Climate Change
/topics/exoplanets/Exoplanets
/topics/stars-and-galaxies/Text duplicate Stars and Galaxies
/topics/robotics/Robotics
/asteroid-watch/Asteroid Watch
https://eyes.nasa.gov/External Subdomain NASA's Eyes Visualizations
/who-we-are/universe/Universe - Internal Newsletter
https://www.jpl.nasa.gov/social/Social Media
https://www.nasa.gov/general/a...External Subdomain Accessibility at NASA
/who-we-are/media-information/...Contact Us
http://www.facebook.com/NASAJPLNew window External Subdomain No Text
https://x.com/NASAJPLNew window External No Text
http://instagram.com/nasajplNew window External No Text
http://www.youtube.com/user/JP...New window External Subdomain No Text
https://caltech.edu/External No Text
https://www.jpl.jobs/New window External Subdomain Text duplicate Careers
https://www.jpl.nasa.gov/edu/New window Subdomain Text duplicate Education
https://scienceandtechnology.j...New window External Subdomain Text duplicate Science & Technology
https://acquisition.jpl.nasa.gov/New window External Subdomain Acquisition
https://thejplstore.com/New window External JPL Store
https://www.jpl.jobs/External Subdomain Text duplicate Careers
https://www.jpl.nasa.gov/edu/Subdomain Text duplicate Education
https://scienceandtechnology.j...External Subdomain Text duplicate Science & Technology
https://acquisition.jpl.nasa.gov/External Subdomain Text duplicate Acquisition
https://thejplstore.com/External Text duplicate JPL Store
https://solarsystem.nasa.gov/b...External Subdomain Basics of Spaceflight
https://climatekids.nasa.gov/External Subdomain Climate Kids
https://climate.nasa.gov/External Subdomain Earth / Global Climate Change
https://exoplanets.nasa.gov/External Subdomain Exoplanet Exploration
https://mars.nasa.gov/External Subdomain Mars Exploration
https://solarsystem.nasa.gov/External Subdomain Solar System Exploration
https://spaceplace.nasa.gov/External Subdomain Space Place
https://eyes.nasa.gov/External Subdomain NASA's Eyes Visualization Project
https://voyager.jpl.nasa.gov/External Subdomain Voyager Interstellar Mission
http://www.nasa.gov/External Subdomain Text duplicate NASA
http://www.caltech.edu/External Subdomain Caltech
/caltechjpl-privacy-policies-a...Privacy
/jpl-image-use-policy/Image Policy
/frequently-asked-questions/FAQ
/contact-jpl/Feedback

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.jpl.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 of 0.76 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 very large (690 kB).

HTTP Response Header

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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 3,889 referring domains.
This page has 157,993 backlinks.
This page has backlinks from 2,723 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

# START nuxt-robots (indexable)
User-agent: *
Allow: /missions?mission_status=current
Allow: /missions?mission_status=past
Allow: /missions?mission_status=future
Allow: /missions?mission_target=Earth
Allow: /missions?mission_target=Mars
Allow: /missions?mission_target=Jupiter
Allow: /missions?mission_target=Saturn
Allow: /news?topics=Earth
Allow: /news?topics=Solar%20System
Allow: /news?topics=Stars%20and%20Galaxies
Disallow: /_redirects.json
Disallow: /edu-legacy
Disallow: /edu-legacy/*
Disallow: /edubeta
Disallow: /edubeta/*
Disallow: /go/wildfire-recovery
Disallow: /go/wildfire-recovery/*
Disallow: /*?*

Sitemap: https://www.jpl.nasa.gov/sitemap.xml
# END nuxt-robots

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www.jpl.nasa.gov
NASA Jet Propulsion Laboratory (JPL) - Robotic Space Exploration | ...
Space mission and science news, images and videos from NASA's Jet Propulsion Laboratory (JPL), the leading center for robotic exploration of the solar system.

Most important keywords

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

KeywordResultRecheck
NASA Jet Propulsion78%Check
JPL77%Check
Jet77%Check
Propulsion77%Check
Laboratory77%Check
Jet Propulsion Laboratory77%Check
NASA Jet Propulsion Laboratory77%Check
NASA71%Check
space56%Check
Space Exploration54%Check
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