Doi.org - SEO Checker

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Overview of the SEO Check
Meta information
62% 
Page quality
61% 
Page structure
79% 
Link structure
96% 
Server
84% 
External factors
100% 
SEO Score
Response time
0.74 s
File size
23.40 kB
Words
496
Media files
5
Number of links
20 internal / 8 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home Page
The page title is too short. (108 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)
No canonical link is 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 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
generatorHugo 0.101.0
viewportwidth=device-width, initial-scale=1
ahrefs-site-verificationa4d19d13d080685e48094a2591188be35d7b5db05918a5eb84828500a14f3c5e
langen-us
X-UA-CompatibleIE=edge
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 496 words on this page. Good pages should have about 800 words of useful content.
39.9% of the text are stop words.
The page contains a listing, which indicates a good text layout.
10 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 15.32 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
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 10 tags for this page.
Image SEO
(Somewhat important)
5 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
/images/logos/header_logo_cropped.svgNo alt attribute provided
https://www.doi.org/images/globe.svgNo alt attribute provided
https://www.doi.org/images/target.svgNo alt attribute provided
/images/communities/HAND.svgNo alt attribute provided
/images/logos/footer_logo_cropped.svgNo alt attribute provided

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 WHO IS THE DOI FOUNDATION COMMUNITY?
H2 WHAT IS THE DIGITAL OBJECT IDENTIFIER (DOI)?
H2 ANNOUNCING OUR NEWEST REGISTRATION AGENCY
H2 How many are being resolved?
H2 Try resolving a DOI name
Anchor text is an URL
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 8 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.doi.org/Subdomain No Text
/the-foundation/about-us/About Us
/the-foundation/board-and-gove...Board & Governance
/the-foundation/sustainability/Sustainability
/the-community/what-are-regist...What are Registration Agencies?
/the-community/existing-regist...Existing Registration Agencies
/the-community/who-are-the-mem...Who Are The Members and Users?
/the-identifier/what-is-a-doi/What is a DOI?
/the-identifier/resources/hand...DOI Handbook
/the-identifier/resources/Resources
/the-foundation/about-us/learn more
/the-community/what-are-regist...Text duplicate learn more
/the-identifier/what-is-a-doi/Text duplicate learn more
https://www.handidentity.com/External Subdomain Learn more
/10.47366/sabia.v5n1a3URL anchor text
https://doi.org/10.47366/sabia.v5n1a3
https://twitter.com/DOI_Founda...External No Text
https://www.linkedin.com/compa...External Subdomain No Text
https://www.doi.org/Subdomain No Text
/the-identifier/resources/Text duplicate Resources
/the-foundation/board-and-gove...Governing Board
https://doi.statuspage.io/External Subdomain Status page
/the-identifier/resources/hand...The DOI Handbook
https://www.iso.org/standard/8...External Subdomain ISO 26324
/privacy-policy/Privacy Policy
/resources/130718-trademark-po...Trademarks (PDF)
https://creativecommons.org/li...New window External Creative Commons Attribution 4.0 International License
A-TITLE Creative Commons
https://twitter.com/DOI_Founda...External No Text
https://www.linkedin.com/compa...External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.doi.org/"
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 0.74 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 (23 kB).

HTTP Response Header

NameValue
content-typetext/html
content-length6830
dateSat, 31 Aug 2024 12:28:04 GMT
last-modifiedThu, 08 Aug 2024 12:23:11 GMT
etag"e4781d05c68520d54461c07c1bfdc56d"
x-amz-server-side-encryptionAES256
x-amz-meta-md5chksume4781d05c68520d54461c07c1bfdc56d
content-encodinggzip
accept-rangesbytes
serverAmazonS3
x-cacheMiss from cloudfront
via1.1 851fdca2e1873274a995295ecd94732e.cloudfront.net (CloudFront)
x-amz-cf-popFRA56-P8
x-amz-cf-idj7c2X8M3OVVmlafn2X5WvnPz9bpUrXF6n5pM9vDd061IDJzEWoh4MQ==
statuscode200
http_versionHTTP/2

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 14,665 referring domains.
This page has 11,872,731 backlinks.
This page has backlinks from 9,819 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Allow: /
Disallow: /_

Similar sites

Search preview

www.doi.org
Home Page

Most important keywords

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

KeywordResultRecheck
DOI54%Check
DOI Foundation48%Check
DOI name48%Check
org46%Check
DOI resolutions46%Check
DOI Handbook46%Check
page43%Check
Total DOI resolutions42%Check
Registration38%Check
Foundation38%Check
Show more keywords and terms

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