Darkenergysurvey.org - SEO Checker

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Overview of the SEO Check
Meta information
77% 
Page quality
54% 
Page structure
42% 
Link structure
96% 
Server
22% 
External factors
100% 
SEO Score
Response time
1.72 s
File size
41.80 kB
Words
153
Media files
6
Number of links
37 internal / 18 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Dark Energy Survey
The page title is too short. (182 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)
https://www.darkenergysurvey.org/
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)
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 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
robotsmax-image-preview:large
generatorWordPress 6.5.5
msapplication-TileImagehttps://www.darkenergysurvey.org/wp-content/uploads/2023/12/desfavicon.png
langen-us
X-UA-CompatibleIE=edge
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 153 words on this page. Use at least 250 words to provide useful information.
Only 1 paragraph/s was/were found on this page.
19.6% 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.
The average number of words per sentence of 11.5 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 8 JavaScript files. This may affect the load time negatively.
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 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)
This page is optimized perfectly for social networks.
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
...tent/uploads/2023/11/des-logo-rev-lg.png
Insecure Content		Dark Energy Survey
/wp-content/uploads/2023/12/logo-nsf.pngNational Science Foundation
/wp-content/uploads/2023/12/logo-doe.pngOffice of Science - U.S. Department of Energy
/wp-content/uploads/2023/12/logo-stfc.pngScience & Technology
/wp-content/uploads/2023/12/logo-mes.pngMinisterio de Educación
/wp-content/uploads/2023/12/logo-finep.pngFINEP

Page structure

H1 heading
(Critically important)
The DES Project
Too many H1 headings
The H1 heading is too short (15 characters). It should be at least 20 Characters long.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
Some headings do not have any content.

Heading structure

Heading levelContent
H1 The DES Project
H1 DES
H2 Exploring 14 billion years of cosmic history
H3 Recent Comments
H3 Archives
H3 Categories
H3 Meta
H5 Empty heading
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
There are 18 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.darkenergysurvey.org/Subdomain IMG-ALT Dark Energy Survey
/the-des-project/overview/Subdomain Overview
A-TITLE Overview
/the-des-project/science/Subdomain Science
A-TITLE Science
/the-des-project/instrument/Subdomain Instrument
A-TITLE Instrument
/the-des-project/survey-and-op...Subdomain Survey
A-TITLE Survey
/collaboration-and-sponsors/Subdomain Collaboration
A-TITLE Collaboration
/education/scientist-of-the-week/Subdomain Scientist of the Week
A-TITLE Scientist of the Week
/the-des-project/for-des-members/Subdomain For DES Members
A-TITLE For DES Members
https://dbweb8.fnal.gov:8443/D...New window External Subdomain Publications
A-TITLE Publications
/des-year-1-cosmology-results-...Subdomain Y1 Cosmology
A-TITLE Y1 Cosmology
/des-year-3-cosmology-results-...Subdomain Y3 Cosmology
A-TITLE Y3 Cosmology
/des-gravitational-waves-papers/Subdomain Grav Wave
A-TITLE Grav Wave
/des-year-3-supernova-cosmolog...Subdomain Supernovae
A-TITLE Supernovae
/des-bao-papers/Subdomain BAO
A-TITLE BAO
/news-and-results/press-releases/Subdomain Press Releases
A-TITLE Press Releases
/the-des-project/data-access/Subdomain All Data
A-TITLE All Data
https://des.ncsa.illinois.edu/...New window External Subdomain Science Verification
A-TITLE Science Verification
https://des.ncsa.illinois.edu/...New window External Subdomain Data Release 1
A-TITLE Data Release 1
https://des.ncsa.illinois.edu/...New window External Subdomain Data Release 2
A-TITLE Data Release 2
https://des.ncsa.illinois.edu/...New window External Subdomain Y3 Cosmology Data
A-TITLE Y3 Cosmology Data
/decam/DECam Interactive
A-TITLE DECam Interactive
/multimedia/photo-gallery/Subdomain Photo Gallery
A-TITLE Photo Gallery
/multimedia/video-gallery/Subdomain Video Gallery
A-TITLE Video Gallery
/desendofnights/Subdomain #DESendofnights
A-TITLE #DESendofnights
/news-and-results/des-in-the-n...Subdomain DES in the News
A-TITLE DES in the News
/education/darkbites/Subdomain Dark Bites
A-TITLE Dark Bites
/news-and-results/darchives/Subdomain The DArchive
A-TITLE The DArchive
http://www.darkenergydetective...New window External Subdomain Dark Energy Detectives
A-TITLE Dark Energy Detectives
/faq/Subdomain Cosmo FAQ
A-TITLE Cosmo FAQ
/education/public-engagement/Subdomain Public Engagement
A-TITLE Public Engagement
/education/des-education-outre...Subdomain EPO Research
A-TITLE EPO Research
/es/presentacion/Subdomain Presentación
A-TITLE Presentación
/es/ciencia/Subdomain Ciencia
A-TITLE Ciencia
/es/instrumento/Subdomain Instrumento
A-TITLE Instrumento
/es/el-cartografiado/Subdomain El cartografiado
A-TITLE El cartografiado
/es/colaboracion-y-patrocinado...Subdomain Colaboración y patrocinadores
A-TITLE Colaboración y patrocinadores
/es/el-cientifico-de-la-semana/Subdomain El científico de la semana
A-TITLE El científico de la semana
/es/acceso-a-datos/Subdomain Acceso a datos
A-TITLE Acceso a datos
/es/divulgacion/Subdomain Divulgación
A-TITLE Divulgación
/contact-us/Subdomain Contact Us
A-TITLE Contact Us
https://www.facebook.com/darke...External Subdomain The Dark Energy Survey
/wp-login.php?action=shibbolethSubdomain Log in
/feed/Subdomain Entries feed
/comments/feed/Subdomain Comments feed
https://wordpress.org/External WordPress.org
https://www.fnal.gov/External Subdomain No Text
https://www.fnal.gov/External Subdomain Fermi National Accelerator Laboratory
https://www.fra-hq.org/External Subdomain Fermi Research Alliance, LLC
https://www.energy.gov/External Subdomain U.S. Department of Energy Office of Science
https://www.fnal.gov/pub/discl...External Subdomain Security, Privacy, Legal
http://www.nsf.gov/New window External Subdomain IMG-ALT National Science Foundation
http://www.er.doe.gov/New window External Subdomain IMG-ALT Office of Science - U.S. Department of Energy
http://www.scitech.ac.uk/New window External Subdomain IMG-ALT Science & Technology
http://www.educacion.es/portad...New window External Subdomain IMG-ALT Ministerio de Educación
http://www.finep.gov.br/New window External Subdomain IMG-ALT FINEP

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.darkenergysurvey.org/"
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 very slow (1.72 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page loads 6 CSS files. This may affect the page load time negatively.
This page loads 8 JavaScript files. This may affect the load time negatively.
The file size of the HTML document is fine (42 kB).

HTTP Response Header

NameValue
dateFri, 25 Oct 2024 22:56:15 GMT
serverApache
cache-controlprivate, max-age=0, must-revalidate
link<https://www.darkenergysurvey.org/wp-json/>; rel="https://api.w.org/", <https://www.darkenergysurvey.org/wp-json/wp/v2/pages/2>; rel="alternate"; type="application/json", <https://www.darkenergysurvey.org/>; rel=shortlink
strict-transport-securitymax-age=31536000
connectionclose
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

This website has excellent links from other websites.
This page has backlinks from 1,252 referring domains.
This page has 5,976 backlinks.
This page has backlinks from 1,020 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.darkenergysurvey.org/wp-sitemap.xml

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www.darkenergysurvey.org
Dark Energy Survey

Most important keywords

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

KeywordResultRecheck
Dark61%Check
Energy61%Check
Survey61%Check
Dark Energy61%Check
Dark Energy Survey61%Check
Project50%Check
org48%Check
Exploring38%Check
Comments38%Check
Categories38%Check
Show more keywords and terms

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