Darwin-online.org.uk - SEO Checker

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Overview of the SEO Check
Meta information
75% 
Page quality
37% 
Page structure
75% 
Link structure
51% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.02 s
File size
9.30 kB
Words
98
Media files
9
Number of links
44 internal / 9 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The Complete Work of Charles Darwin Online
The length of the page title is perfect. (410 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)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Server location: United States of America
The language is not specified in the HTML markup.
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 XHTML 1.0 Transitional 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
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
There are only 98 words on this page. Use at least 250 words to provide useful information.
No paragraphs were detected.
16.3% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page only loads 3 JavaScript files. That's good!
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
The amount of tags is very high (8). We recommend using a maximum of 6 tags for this page.
Image SEO
(Somewhat important)
1 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
https://darwin-online.org.uk/image/logo.gifDarwin Online
/image/menu_publications_off.gifPublicationsDarwin's publications and published manuscripts
/image/menu_manuscripts_off.gifManuscriptsDarwin manuscripts and private papers
/image/menu_biography_off.gifBiographyTimeline, life in pictures and more
/image/menu_media_off.gifMediaPress, Permissions and Illustrations
/image/menu_aboutus_off.gifAbout UsIntroduction, Credits, User guide and Feedback
/graphics/CompleteLibraryofDarwin.jpgThe Complete Library of Charles Darwin reconstructed for the first timeThe drafts of Darwin's Origin of Species go online
/image/footer_sponsor_ahrc.gifArts and Humanities Research Council
/graphics/ul.gifNo alt attribute provided

Page structure

H1 heading
(Critically important)
The H1 heading is empty
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 Empty heading
H3 The world's largest resource on Darwin Intro FB Press What's new? Edited by John van Wyhe The Complete Library of Charles Darwin reconstructed for the first time
H3 • Publications (bibliography) Origin, Beagle, Descent Life & letters, Darwin & Henslow Autobiography, Beagle diary, Zoology notes, Natural selection... • Manuscripts (catalogue) Notebooks, Beagle d...
H4 Cite: John van Wyhe, ed. 2002- The Complete Work of Charles Darwin Online (http://darwin-online.org.uk)
Anchor text is an URL
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
There are 9 external links on this page.

Found links on this page

LinkAttributesAnchor text
/contents.htmlIMG-ALT Publications
/manuscripts.htmlIMG-ALT Manuscripts
/biography.htmlIMG-ALT Biography
/media.htmlIMG-ALT Media
/AboutUs.htmlIMG-ALT About Us
/content/advanced-search?manus...Advanced search
/Introduction.htmlIntro
http://www.facebook.com/pages/...New window External Subdomain FB
/press.htmlPress
/whatsnew.htmlWhat's new?
/EditorialIntroductions/vanWyh...IMG-ALT The Complete Library of Charles Darwin reconstructed for the first time
/people/van_wyhe.htmlJohn van Wyhe
/contents.htmlText duplicate Publications
/content/advanced-search?manus...bibliography
/contents.htmlOrigin
/contents.htmlAnchor Beagle
/contents.htmlDescent
/content/search-results?pagesi...Life & letters
/content/frameset?itemID=F1598...Darwin & Henslow
/content/frameset?itemID=F1497...Autobiography
/content/frameset?itemID=F1925...Beagle diary
/content/frameset?itemID=F1840...Zoology notes
/content/frameset?itemID=F1583...Natural selection
/manuscripts.htmlText duplicate Manuscripts
/content/advanced-search?manus...catalogue
/EditorialIntroductions/vanWyh...Notebooks
/content/frameset?pageseq=1&it...Text duplicate Beagle diary
/EditorialIntroductions/vanWyh...Origin drafts
A-TITLE The complete drafts of Origin of species
/content/frameset?pageseq=1&it...Journal
/EmmaDiaries.htmlEmma diaries
/supplementary.htmlSupplementary
/Complete_Library_of_Charles_D...Darwin's Library
A-TITLE The Complete Library of Charles Darwin
/BeagleLibrary/Beagle_Library_...Beagle Library
/content/frameset?viewtype=tex...Itinerary
/specimens.htmlSpecimens
/reviews.htmlReviews
/CommunicatedbyDarwin.htmlCommunicated
/obituaries.htmlObituaries
/recollections.htmlRecollections
/introductions.htmlIntros
/secondary.htmlWorks on
/EditorialIntroductions/vanWyh...Complete Photographs of Darwin
/people/John van Wyhe, The Com...New window PDF)
http://wallace-online.org/External Wallace Online
https://www.amazon.com/Darwin-...New window External Subdomain Darwin: A Companion
/converted/pdf/2021_John_van_W...New window Darwin: Justice of the peace
A-TITLE Charles Darwin: Justice of the peace. The complete records (1857-1882)
https://www.amazon.com/Dispell...New window External Subdomain Dispelling the Darkness: Wallace and Darwin
http://darwin-online.org.uk/URL anchor text
http://darwin-online.org.uk
http://www.nus.edu.sg/External Subdomain No Text
http://www.ahrc.ac.uk/External Subdomain IMG-ALT Arts and Humanities Research Council
http://www.ahrc.ac.uk/External Subdomain No Text
http://www.lib.cam.ac.uk/New window External Subdomain No Text
http://www.ahrc.ac.uk/External Subdomain No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://darwin-online.org.uk/"
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 is excellent with 0.02 seconds.
This page only loads 1 CSS files. That's ok.
This page only loads 3 JavaScript files. That's good!
The file size of the HTML document is fine (9 kB).

HTTP Response Header

NameValue
dateWed, 26 Jun 2024 14:35:06 GMT
serverApache/2.4.58 (Ubuntu)
last-modifiedFri, 07 Jun 2024 04:27:38 GMT
etag"250d-61a453832acc8-gzip"
accept-rangesbytes
varyAccept-Encoding
content-encodinggzip
content-length3046
content-typetext/html
statuscode200
http_versionHTTP/1.1

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 6,566 referring domains.
This page has 520,888 backlinks.
This page has backlinks from 3,514 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

No valid Robots.txt file was found.

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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
Darwin76%Check
Darwin Online72%Check
Charles Darwin Online67%Check
Online64%Check
Complete63%Check
Complete Work58%Check
Charles56%Check
Work54%Check
Library51%Check
Publications49%Check
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