Zotero.org - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
97% 
Page quality
48% 
Page structure
70% 
Link structure
92% 
Server
70% 
External factors
100% 
SEO Score
Response time
0.85 s
File size
42.80 kB
Words
351
Media files
9
Number of links
24 internal / 9 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Zotero | Your personal research assistant
The length of the page title is perfect. (369 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
The length of the meta description is perfect. (538 pixels out of 1000 max pixel length)
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
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 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)
No favicon is linked in the HTML code.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
descriptionZotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
langen
charsetutf-8

Test up to 1.000 webpages of zotero.org with our free plan!

Try For Free
No trial. It's just free!

Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
There are only 351 words on this page. Good pages should have about 800 words of useful content.
33.9% 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.
8 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 14.5 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 7 tags for this page.
Image SEO
(Somewhat important)
7 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
...ages/bs4theme/zotero-logo.1707326075.svgZotero
/static/images/home/screenshot-1.4.pngScreenshot of the Zotero desktop application
/static/images/home/static-collect.svgNo alt attribute provided
/static/images/home/organize.svgNo alt attribute provided
/static/images/home/cite.svgNo alt attribute provided
/static/images/home/sync-md.svgNo alt attribute provided
/static/images/home/collaborate.svgNo alt attribute provided
/static/images/home/privacy.svgNo alt attribute provided
/static/images/bs4theme/twitter-icon.svgNo alt attribute provided

Page structure

H1 heading
(Critically important)
Your personal research assistant
Too many H1 headings
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Your personal research assistant
H1 Meet Zotero.
H2 Collect with a click.
H2 Organize your way.
H2 Cite in style.
H2 Stay in sync.
H2 Collaborate freely.
H2 Rest easy.
H2 Ready to try Zotero?
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 9 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.zotero.org/Zotero
https://www.zotero.org/groups/Groups
https://www.zotero.org/support/Documentation
https://forums.zotero.org/disc...External Subdomain Forums
/getinvolvedGet Involved
/user/login/Log In
/user/register/Sign Up
https://www.zotero.org/storageUpgrade Storage
https://www.zotero.org/Text duplicate IMG-ALT Zotero
https://www.zotero.org/groups/Text duplicate Groups
https://www.zotero.org/support/Text duplicate Documentation
https://forums.zotero.org/disc...External Subdomain Text duplicate Forums
/getinvolvedText duplicate Get Involved
/user/login/Text duplicate Log In
https://www.zotero.org/storageText duplicate Upgrade Storage
https://zbib.org/External ZoteroBib Just need to create a quick bibliography?
https://www.zotero.org/downloadDownload
https://apps.apple.com/us/app/...External Subdomain iOS
https://zbib.org/External ZoteroBib
https://github.com/zoteroExternal open source
https://www.zotero.org/whywhy we think you should choose Zotero
https://www.zotero.org/downloadText duplicate Download
https://www.zotero.org/support/Subdomain Text duplicate Documentation
https://forums.zotero.org/External Subdomain Text duplicate Forums
https://www.zotero.org/blog/Subdomain Blog
/support/privacySubdomain Privacy
/support/terms/terms_of_serviceSubdomain Terms of Service
/getinvolved/Subdomain Text duplicate Get Involved
/support/dev/startSubdomain Developers
https://www.zotero.org/jobsSubdomain Jobs
https://twitter.com/zoteroExternal No Text
http://digitalscholar.org/External Corporation for Digital Scholarship
/support/credits_and_acknowled...global community

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.zotero.org/"
HTTP header
(Important)
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time of 0.85 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 (43 kB).

HTTP Response Header

NameValue
dateMon, 24 Jun 2024 15:35:56 GMT
content-typetext/html; charset=UTF-8
content-length11231
serverApache/2.4.58 ()
strict-transport-securitymax-age=31536000; includeSubDomains; preload
set-cookie144 Characters
x-frame-optionsSAMEORIGIN
content-security-policydefault-src 'self' https://api.zotero.org; script-src 'self' https://api.zotero.org 'nonce-waiiyerqs9'; style-src 'self' hello.myfonts.net 'nonce-f83d7v9u4j'; img-src 'self' https://s3.amazonaws.com/; frame-src 'self'; connect-src 'self' https://api.zotero.org https://api.zotero.org https://www.zotero.org https://zoterofilestorage.s3.amazonaws.com https://zoterofilestorage.s3.us-east-1.amazonaws.com/ https://t0guvf0w17.execute-api.us-east-1.amazonaws.com wss://stream.zotero.org https://files.zotero.net; child-src 'self'; worker-src 'self'
varyAccept-Encoding
content-encodinggzip
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 27,131 referring domains.
This page has 5,141,041 backlinks.
This page has backlinks from 18,339 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

User-agent: *
Disallow: /trac/
Disallow: /people/
Disallow: /*/following
Disallow: /*/followers
Disallow: /google-docs/

Similar sites

Search preview

www.zotero.org
Zotero | Your personal research assistant
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

Most important keywords

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

KeywordResultRecheck
Zotero81%Check
research73%Check
personal research68%Check
research assistant68%Check
personal research assistant65%Check
org63%Check
personal62%Check
assistant61%Check
organize52%Check
collect52%Check
Show more keywords and terms

Test up to 1.000 webpages of zotero.org with our free plan!

Try For Free
No trial. It's just free!

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions