Cneos.jpl.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
52% 
Page structure
79% 
Link structure
92% 
Server
45% 
External factors
100% 
SEO Score
Response time
0.04 s
File size
16.20 kB
Words
210
Media files
9
Number of links
58 internal / 20 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Center for NEO Studies
The length of the page title is perfect. (214 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more.
The length of the meta description is perfect. (696 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://cneos.jpl.nasa.gov/
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)
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 character encoding is not specified in the HTTP header.
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=1.0
descriptionNASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more.
theme-color#ffffff
langen
X-UA-CompatibleIE=edge
charsetutf-8

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Page quality

Content
(Critically important)
There are only 210 words on this page. Use at least 250 words to provide useful information.
No paragraphs were detected.
13.8% 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.
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 6 tags for this page.
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
/images/cneos_banner.pngCNEOS Banner
/images/logo_nasa_trio.pngTrio-Logo
https://cneos.jpl.nasa.gov/images/cneos.pngCNEOS
/images/cneos_title_stacked.pngCNEOS
/images/icon_fireballs.pngRecent Large Meteor Explosions
/images/icon_sentry.pngNEO Threat Assessment System
/images/icon_nda.pngDeflecting Earth Threatening NEOs
/images/icon_stats.pngNEO Discovery Statistics
/images/cneos_logo.pngCNEOS

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 Home
H4 Quick Links
H5 NEA Stats
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 20 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://cneos.jpl.nasa.gov/Anchor Skip Navigation
https://www.nasa.gov/External Subdomain A-TITLE NASA
http://www.jpl.nasa.gov/External Subdomain A-TITLE JPL
http://www.caltech.edu/External Subdomain A-TITLE Caltech
https://cneos.jpl.nasa.gov/A-TITLE CNEOS
https://cneos.jpl.nasa.gov/Home
https://cneos.jpl.nasa.gov/Menu
https://cneos.jpl.nasa.gov/about/About
/about/cneos.htmlCenter for NEO Studies
/about/basics.htmlNEO Basics
/about/search_program.htmlSearch Program
/orbits/Orbits
/orbits/intro.htmlIntroduction
https://ssd.jpl.nasa.gov/tools...External Subdomain NEO Lookup
https://ssd.jpl.nasa.gov/tools...External Subdomain NEO DB Query
https://ssd.jpl.nasa.gov/horiz...External Subdomain Horizons
/orbits/elements.htmlOrbit Elements
https://cneos.jpl.nasa.gov/nhats/Accessible NEAs
/ca/intro.htmlClose Approaches
/ca/intro.htmlText duplicate Introduction
https://cneos.jpl.nasa.gov/ca/NEOs
/fireballs/Fireballs
/risk/intro.htmlImpact Risk
/risk/intro.htmlText duplicate Introduction
/sentry/Sentry
https://cneos.jpl.nasa.gov/scout/Scout
https://cneos.jpl.nasa.gov/pd/Planetary Defense
https://cneos.jpl.nasa.gov/pd/Text duplicate Introduction
https://cneos.jpl.nasa.gov/nda/NEO Deflection App
https://cneos.jpl.nasa.gov/pd/cs/Impact Scenarios
https://www.nasa.gov/planetary...External Subdomain NASA Planetary Defense Coordination Office
/stats/totals.htmlDiscovery Statistics
https://cneos.jpl.nasa.gov/stats/Text duplicate Introduction
/stats/totals.htmlCumulative Totals
/stats/size.htmlby Size
/stats/site_all.htmlby Survey (all)
/stats/site_140.htmlby Survey (140m)
/stats/site_km.htmlby Survey (km)
/stats/wise.htmlWISE/NEOWISE
https://cneos.jpl.nasa.gov/tools/Tools
/tools/ast_size_est.htmlAsteroid Size Estimator
https://ssd.jpl.nasa.gov/tools...External Subdomain Sky Search
https://ssd.jpl.nasa.gov/tools...External Subdomain What's Observable
https://ssd.jpl.nasa.gov/horiz...External Subdomain Text duplicate Horizons
https://ssd.jpl.nasa.gov/tools...External Subdomain Text duplicate NEO Lookup
https://ssd.jpl.nasa.gov/tools...External Subdomain Text duplicate NEO DB Query
/extras.htmlExtras
https://cneos.jpl.nasa.gov/news/News Archive
/missions/NEO Missions
https://cneos.jpl.nasa.gov/doc/Documents
https://cneos.jpl.nasa.gov/faq/FAQ
/glossary/Glossary
https://cneos.jpl.nasa.gov/links/Related Links
https://cneos.jpl.nasa.gov/feed/RSS Feeds
/sitemap.htmlSite Map
/about/basics.htmlText duplicate NEO Basics
https://ssd.jpl.nasa.gov/sbdb_...External Subdomain Text duplicate NEO DB Query
/sentry/Sentry (impact risk)
https://cneos.jpl.nasa.gov/nhats/Text duplicate Accessible NEAs
https://youtu.be/UA6voCyCW1gExternal Close Approach Tutorial
https://www.nasa.gov/planetary...External Subdomain NASA PDCO
https://twitter.com/asteroidwatchExternal Asteroid Watch on Twitter
http://ssd.jpl.nasa.gov/horizo...External Subdomain Text duplicate Horizons
http://ssd.jpl.nasa.gov/External Subdomain Solar System Dynamics
https://cneos.jpl.nasa.gov/ca/Close Approach Tables
https://cneos.jpl.nasa.gov/stats/Text duplicate Discovery Statistics
/fireballs/Recent Large Meteor Explosions
IMG-ALT Recent Large Meteor Explosions
/sentry/NEO Threat Assessment System
https://cneos.jpl.nasa.gov/nda/Deflecting Earth Threatening NEOs
/stats/totals.htmlNEO Discovery Statistics
https://cneos.jpl.nasa.gov/news/Text duplicate News Archive
https://cneos.jpl.nasa.gov/feed/RSS feed
https://cneos.jpl.nasa.gov/Text duplicate IMG-ALT CNEOS
/sitemap.htmlText duplicate Site Map
https://www.jpl.nasa.gov/calte...External Subdomain Privacy
https://www.jpl.nasa.gov/jpl-i...External Subdomain Image Policy
/contact/Contact
/contact/Contact CNEOS

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://cneos.jpl.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 is excellent with 0.04 seconds.
The file size of the HTML document is fine (16 kB).

HTTP Response Header

NameValue
content-typetext/html
content-length16542
x-amz-id-29LoThcyQUEYBclHYeNSORWGbwR0n4ryAfGHwv+8BiSdMBCn45Xt5tWX8EP7kDwIaCMsx3umMO3g=
x-amz-request-idQ1KCE0VQMSJKVS99
last-modifiedMon, 12 Aug 2024 17:47:20 GMT
x-amz-server-side-encryptionAES256
accept-rangesbytes
serverAmazonS3
dateTue, 20 Aug 2024 03:42:56 GMT
etag"b664839bbc46b0fb239ebc102f5381c5"
x-cacheHit from cloudfront
via1.1 9905602b8526d2635024f3edbf1df702.cloudfront.net (CloudFront)
x-amz-cf-popFRA60-P2
x-amz-cf-idzJCc3PrecgXKLjzJe7KLsb-klzFhEMRAGpKz7s4NtjJILYsEIE_WvQ==
age67891
x-frame-optionsSAMEORIGIN
strict-transport-securitymax-age=31536000; includeSubDomains; preload
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 6,282 referring domains.
This page has 74,782 backlinks.
This page has backlinks from 3,709 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

# Content not necessary for effective indexing of this site.

User-agent: *
Disallow: /js/
Disallow: /css/
Disallow: /fonts/
Disallow: /redirect/

Similar sites

Search preview

cneos.jpl.nasa.gov
Center for NEO Studies
NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more.

Most important keywords

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

KeywordResultRecheck
NEO73%Check
NASA59%Check
NEO Studies59%Check
NEOs50%Check
CNEOS50%Check
NEA50%Check
Earth48%Check
Impact46%Check
Center46%Check
Studies46%Check
Show more keywords and terms

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