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Search Engine Optimization Overview
77
100
Zotero | Your personal research assistant
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
https://www.zotero.org/
2 high issues
6.1%
4 medium issues
12.1%
5 low issues
15.2%
22 tests passed
66.7%
0.30 seconds
11.18 kB
11 resources
Secure
Seo
Title
The title tag is perfect.
Zotero | Your personal research assistant
Meta description
The meta description tag is good.
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.
Headings
Only one h1 tag should be present on the webpage.
  1. Your personalresearch assistant
  2. Meet Zotero.
  1. Collect with a click.
  2. Organize your way.
  3. Cite in style.
  4. Stay in sync.
  5. Collaborate freely.
  6. Rest easy.
  7. Ready to try Zotero?
Content keywords
The content has relevant keywords.
zoteroyourresearchassistant
Image keywords
There are 7 images with missing alt attributes.
  1. https://www.zotero.org/static/images/home/static-collect.svg
  2. https://www.zotero.org/static/images/home/organize.svg
  3. https://www.zotero.org/static/images/home/cite.svg
  4. https://www.zotero.org/static/images/home/sync-md.svg
  5. https://www.zotero.org/static/images/home/collaborate.svg
  6. https://www.zotero.org/static/images/home/privacy.svg
  7. https://www.zotero.org/static/images/bs4theme/twitter-icon.svg
SEO friendly URL
The URL is SEO friendly.
https://www.zotero.org/
404 page
The website has 404 error pages.
https://www.zotero.org/404-e9e2f426d1a314c1cc3b863073df6944
Robots.txt
The webpage can be accessed by search engines.
Noindex
The webpage does not have a noindex tag set.
In-page links
The number of links on the webpage is okay.
Language
The webpage has the language declared.
en
Favicon
The webpage does not have a favicon.
Performance
Text compression
The HTML file is compressed.
Load time
The webpage loaded in 0.30 seconds.
Page size
The size of the HTML webpage is 11,182.00.
HTTP requests
There are fewer than 11 HTTP requests on the webpage.
  1. https://www.zotero.org/static/js/bs4/web-components.min.1654654797.js
  1. https://www.zotero.org/static/css/bs4/web-components.min.1654654836.css
  1. https://www.zotero.org/static/images/bs4theme/zotero-logo.1519312231.svg
  2. https://www.zotero.org/static/images/home/screenshot-1.4.png
  3. https://www.zotero.org/static/images/home/static-collect.svg
  4. https://www.zotero.org/static/images/home/organize.svg
  5. https://www.zotero.org/static/images/home/cite.svg
  6. https://www.zotero.org/static/images/home/sync-md.svg
  7. https://www.zotero.org/static/images/home/collaborate.svg
  8. https://www.zotero.org/static/images/home/privacy.svg
  9. https://www.zotero.org/static/images/bs4theme/twitter-icon.svg
Image format
There are 1 images that are not using the AVIF, WebP format.
  1. https://www.zotero.org/static/images/home/screenshot-1.4.png
JavaScript defer
The are 1 javascript resources without the defer attribute.
  1. https://www.zotero.org/static/js/bs4/web-components.min.1654654797.js
DOM size
The DOM size is optimal.
The HTML file has 396 DOM nodes.
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTML file has https://www.zotero.org/ DOM nodes.
Mixed content
There are no mixed content resources on the webpage.
Server signature
The webpage has a public server signature.
Apache/2.4.54 (Amazon)
Unsafe cross-origin links
The webpage does not have unsafe cross-origin links.
Plaintext email
The webpage contains plaintext emails.
  1. screenshot-1.4@2x.png
Miscellaneous
Structured data
There are no structured data tags on the webpage.
Meta viewport
The webpage has a meta viewport tag set.
width=device-width, initial-scale=1, shrink-to-fit=no
Character set
The webpage has a charset value set.
utf-8
Sitemap
No sitemaps found.
Social
The webpage has 1 social links.
Content length
The are less than 500 words on the webpage.
The webpage has 380 words.
Text to HTML ratio
The text to HTML ratio is under 10%
The text to HTML ratio is 6%.
Inline CSS
The webpage does not contain inline CSS code.
Deprecated HTML
There are no deprecated HTML tags on the webpage.