Aqua.nasa.gov - SEO Checker

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Overview of the SEO Check
Meta information
74% 
Page quality
60% 
Page structure
70% 
Link structure
77% 
Server
87% 
External factors
100% 
SEO Score
Response time
0.53 s
File size
29.90 kB
Words
1356
Media files
13
Number of links
34 internal / 40 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Aqua Earth-Observing Satellite Mission | Aqua Project Science
The length of the page title is perfect. (561 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://aqua.nasa.gov/content/aqua-earth-observing-satellite-mission
The specified canonical link points to a different page.
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
viewportwidth=device-width, initial-scale=1.0
langen
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
These Typos were found:
  • satelites => satellites
This page contains 1356 words. That's ok.
32.6% 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.
27 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 24.09 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
This page loads 5 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
Some tags are too long. With 145 characters this one is longer than 70 characters:
"decades ago, the aqua mission has delivered observations essential to improving our understanding of g..."
Image SEO
(Somewhat important)
11 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
/sites/default/files/nasa-logo.pngHome
...lt/files/Aqua final 2024 anniversary.pngNo alt attribute provided
/sites/default/files/FR6xprwWQAA9mbw.jpgNo alt attribute provided
/sites/default/files/water_cycle.jpgNo alt attribute provided
...Screenshot 2023-04-28 at 10.57.11 AM.pngNo alt attribute provided
...278/sudanflooding_amo_20240831_front.jpgNo alt attribute provided
/sites/default/files/AIRS_60.pngNo alt attribute provided
/sites/default/files/AMSRE_60.pngNo alt attribute provided
/sites/default/files/CERES_60.pngNo alt attribute provided
/sites/default/files/MODIS_60.pngNo alt attribute provided
...ult/files/AquaScienceHighligh2024Jan.jpgNo alt attribute provided
/sites/default/files/nasa-logo.pngNo alt attribute provided

Page structure

H1 heading
(Critically important)
Aqua Earth-Observing Satellite Mission
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Aqua Earth-Observing Satellite Mission
H1 What Happens When NASA Loses Eyes on Earth? We’re About to Find Out.
H1 Continuity between NASA MODIS Collection 6.1 and VIIRS Collection 2 land products
H2 Recent Imagery Incorporating Aqua Data
H2 Aqua Image Highlight
H2 Aqua Science Teams
H3 Aqua Status
H3 Aqua Video Podcast Series
H3 Aqua Science of the Month
1 links don't have an anchor text.
There are 1 links with a trivial anchor text.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are too many external links (40) on this page.

Found links on this page

LinkAttributesAnchor text
https://aqua.nasa.gov/Anchor Skip to main content
https://aqua.nasa.gov/Home
/content/science-dataScience
/content/images-dataImages + Data
/content/validationValidation
/content/formation-flyingFormation Flying
/community-workshopsCommunity Workshops
/content/about-aquaAbout Aqua
/content/about-aquaSpacecraft
/content/instrumentsInstruments
/content/selected-key-aqua-pro...Key Personnel
https://aqua.gsfc.nasa.gov/pre...External Subdomain Previous Aqua Status Updates
https://aqua.nasa.gov/newsroomNewsroom
/newsroom/nasaNASA Releases
/newsroom/mediaMedia Releases
/aqua-science-publication-high...Aqua Science Publication Highlights
http://www.nasa.gov/pdf/151543...External Subdomain Launch Media Package
https://aqua.gsfc.nasa.gov/pre...External Subdomain Past Aqua Highlights
/publicationsReference
/publicationsPublications
/presentationsPresentations
/visualizationsVisualizations
/pre-launch-photo-galleryPre-launch Photo Gallery
/reference/radioshowsRadio Shows
http://www.nasa.gov/External Subdomain Text duplicate IMG-ALT Home
A-TITLE NASA.gov
https://aqua.gsfc.nasa.gov/pre...External Subdomain Trivial anchor text
here
https://www.nytimes.com/2024/0...External Subdomain New York Times article
http://eospso.nasa.gov/External Subdomain Earth Observing System (EOS)
A-TITLE NASA's Earth Observing System
/timeline-aqua-orbit-progressText duplicate Trivial anchor text
here
https://airs.jpl.nasa.gov/External Subdomain Atmospheric Infrared Sounder (AIRS)
/content/amsuSubdomain Advanced Microwave Sounding Unit (AMSU)
https://ceres.larc.nasa.gov/External Subdomain Clouds and the Earth’s Radiant Energy System (CERES)
https://modis.gsfc.nasa.gov/External Subdomain Moderate Resolution Imaging Spectroradiometer (MODIS)
https://aqua.nasa.gov/amsr-eSubdomain Advanced Microwave Scanning Radiometer for EOS (AMSR-E)
https://aqua.nasa.gov/content/hsbSubdomain Humidity Sounder for Brazil (HSB)
https://atrain.nasa.gov/External Subdomain A-Train
http://aura.gsfc.nasa.gov/External Subdomain Aura
A-TITLE NASA Aura satellite
http://smsc.cnes.fr/PARASOL/External Subdomain PARASOL
A-TITLE CNES PARASOL satellite
http://cloudsat.atmos.colostat...External Subdomain CloudSat
A-TITLE NASA CloudSat satellite
http://www-calipso.larc.nasa.gov/External Subdomain CALIPSO
A-TITLE NASA-CNES CALIPSO satellite
http://global.jaxa.jp/projects...External Subdomain GCOM-W1
A-TITLE JAXA GCOM-W1 satellite
http://oco.jpl.nasa.gov/External Subdomain OCO-2
A-TITLE NASA OCO-2 satellite
https://visibleearth.nasa.gov/...External Subdomain No Text
https://visibleearth.nasa.gov/...External Subdomain Floods Swamp Sudan
A-TITLE Floods Swamp Sudan
https://aqua.nasa.gov/highlightView the Image Highlight Archive
http://airs.jpl.nasa.gov/External Subdomain AIRS Science Team (covering AIRS, AMSU, and HSB)
http://www.ghcc.msfc.nasa.gov/...External Subdomain AMSR-E Science Team
http://ceres.larc.nasa.gov/External Subdomain CERES Science Team
http://modis.gsfc.nasa.gov/External Subdomain MODIS Science Team
/content/images-dataimages and data page.
http://directreadout.sci.gsfc....External Subdomain NASA Direct Readout Laboratory (DRL).
/sites/default/files/AquaStatu...Aqua Status file
/sites/default/files/AquaStatu...,
/AquaStatus_10_October2014.pdfNo Text
https://aqua.gsfc.nasa.gov/pre...External Subdomain Text duplicate Trivial anchor text
here
http://www.youtube.com/watch?v...External Subdomain NASA Goddard YouTube channel
http://svs.gsfc.nasa.gov/vis/a...External Subdomain NASA Scientific Visualization Studio
http://www.youtube.com/watch?v...External Subdomain Text duplicate NASA Goddard YouTube channel
http://svs.gsfc.nasa.gov/vis/a...External Subdomain Text duplicate NASA Scientific Visualization Studio
http://www.youtube.com/watch?v...External Subdomain Text duplicate NASA Goddard YouTube channel
http://svs.gsfc.nasa.gov/vis/a...External Subdomain Text duplicate NASA Scientific Visualization Studio
http://www.youtube.com/watch?v...External Subdomain Text duplicate NASA Goddard YouTube channel
http://svs.gsfc.nasa.gov/vis/a...External Subdomain Text duplicate NASA Scientific Visualization Studio
http://www.youtube.com/watch?v...External Subdomain Text duplicate NASA Goddard YouTube channel
http://svs.gsfc.nasa.gov/vis/a...External Subdomain Text duplicate NASA Scientific Visualization Studio
/sites/default/files/1-s2.0-S0...Continuity between NASA MODIS Collection 6.1 and VIIRS Collection 2 land products
https://doi.org/10.1016/j.rse....New window External URL anchor text
https://doi.org/10.1016/j.rse.2023.113963
A-TITLE Persistent link using digital object identifier
/aqua-science-publication-high...Subdomain here.
https://aqua.nasa.gov/No Text
http://science.gsfc.nasa.gov/6...External Subdomain Sciences and Exploration
http://neptune.gsfc.nasa.gov/External Subdomain Hydrospheric & Biospheric Laboratory
https://aqua.nasa.gov/sitemapSite Map
http://www.nasa.gov/about/high...External Subdomain Privacy Policy & Important Notices
https://www.nasa.gov/accessibi...External Subdomain Accessibility

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://aqua.nasa.gov/"
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 0.53 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 loads 5 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (30 kB).

HTTP Response Header

NameValue
dateSun, 29 Sep 2024 22:46:30 GMT
serverApache
strict-transport-securitymax-age=31557600
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
x-drupal-cacheHIT
etag"1727648554-1"
content-languageen
link</content/aqua-earth-observing-satellite-mission>; rel="canonical",</node/342>; rel="shortlink"
cache-controlpublic, max-age=0
last-modifiedSun, 29 Sep 2024 22:22:34 GMT
expiresSun, 19 Nov 1978 05:00:00 GMT
varyCookie,Accept-Encoding
content-encodinggzip
transfer-encodingchunked
content-typetext/html; charset=utf-8
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 1,082 referring domains.
This page has 11,214 backlinks.
This page has backlinks from 745 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

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: 10
# CSS, JS, Images
Allow: /misc/*.css$
Allow: /misc/*.css?
Allow: /misc/*.js$
Allow: /misc/*.js?
Allow: /misc/*.gif
Allow: /misc/*.jpg
Allow: /misc/*.jpeg
Allow: /misc/*.png
Allow: /modules/*.css$
Allow: /modules/*.css?
Allow: /modules/*.js$
Allow: /modules/*.js?
Allow: /modules/*.gif
Allow: /modules/*.jpg
Allow: /modules/*.jpeg
Allow: /modules/*.png
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: /themes/*.css$
Allow: /themes/*.css?
Allow: /themes/*.js$
Allow: /themes/*.js?
Allow: /themes/*.gif
Allow: /themes/*.jpg
Allow: /themes/*.jpeg
Allow: /themes/*.png
# Directories
Disallow: /includes/
Disallow: /misc/
Disallow: /modules/
Disallow: /profiles/
Disallow: /scripts/
Disallow: /themes/
# Files
Disallow: /CHANGELOG.txt
Disallow: /cron.php
Disallow: /INSTALL.mysql.txt
Disallow: /INSTALL.pgsql.txt
Disallow: /INSTALL.sqlite.txt
Disallow: /install.php
Disallow: /INSTALL.txt
Disallow: /LICENSE.txt
Disallow: /MAINTAINERS.txt
Disallow: /update.php
Disallow: /UPGRADE.txt
Disallow: /xmlrpc.php
# 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/
# Paths (no clean URLs)
Disallow: /?q=admin/
Disallow: /?q=comment/reply/
Disallow: /?q=filter/tips/
Disallow: /?q=node/add/
Disallow: /?q=search/
Disallow: /?q=user/password/
Disallow: /?q=user/register/
Disallow: /?q=user/login/
Disallow: /?q=user/logout/

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Search preview

Most important keywords

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

KeywordResultRecheck
Aqua80%Check
Aqua Mission71%Check
Earth70%Check
Earth observing70%Check
Aqua Science69%Check
Mission66%Check
Satellite66%Check
observing66%Check
Aqua Earth-Observing Satellite66%Check
Satellite Mission66%Check
Show more keywords and terms

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