Xkcd.com - SEO Checker

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Overview of the SEO Check
Meta information
58% 
Page quality
49% 
Page structure
58% 
Link structure
83% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.03 s
File size
6.80 kB
Words
191
Media files
4
Number of links
28 internal / 23 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
xkcd: Canon
The page title is too short. (112 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
Server location: Canada
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 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
twitter:cardsummary_large_image
og:site_namexkcd
og:titleCanon
og:urlhttps://xkcd.com/3123/
og:imagehttps://imgs.xkcd.com/comics/canon_2x.png
X-UA-CompatibleIE=edge

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Page quality

Content
(Critically important)
There are only 191 words on this page. Use at least 250 words to provide useful information.
31.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
3 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 9.7 words is good.
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 2 JavaScript files. That's good!
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)
This page uses Google authorship information without an image.
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://xkcd.com/s/0b7742.pngxkcd.com logo
https://imgs.xkcd.com/comics/canon.pngCanonAchilles was a mighty warrior, but his Achilles' heel was his heel.
https://imgs.xkcd.com/s/a899e84.jpgSelected Comics
https://imgs.xkcd.com/s/temperature.pngEarth temperature timeline

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
Anchor text is an URL
Some anchor texts are used more than once.
5 links don't have an anchor text.
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 23 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://xkcd.com/archiveArchive
https://what-if.xkcd.com/External Subdomain What If?
https://xkcd.com/aboutAbout
https://xkcd.com/atom.xmlFeed
https://xkcd.com/newsletter/Email
https://twitter.com/xkcd/External TW
https://www.facebook.com/TheXKCD/External Subdomain FB
https://www.instagram.com/xkcd/External Subdomain IG
https://xkcd.com/books/-Books-
https://xkcd.com/what-if-2/What If? 2
https://xkcd.com/what-if/WI?
https://xkcd.com/thing-explainer/TE
https://xkcd.com/how-to/HT
https://xkcd.com/IMG-ALT xkcd.com logo
https://xkcd.com/what-if/Special 10th anniversary edition of WHAT IF?
https://bit.ly/WhatIf10thExternal Trivial anchor text
here
https://xkcd.com/1/|<
https://xkcd.com/3122/< Prev
https://c.xkcd.com/random/comic/External Subdomain Random
https://xkcd.com/>|
https://xkcd.com/1/Text duplicate |<
https://xkcd.com/3122/Text duplicate < Prev
https://c.xkcd.com/random/comic/External Subdomain Text duplicate Random
https://xkcd.com/Text duplicate >|
https://xkcd.com/3123URL anchor text
https://xkcd.com/3123/
https://imgs.xkcd.com/comics/c...External Subdomain URL anchor text
https://imgs.xkcd.com/comics/canon.png
https://xkcd.com/1732/IMG-ALT Earth temperature timeline
https://xkcd.com/rss.xmlRSS Feed
https://xkcd.com/atom.xmlAtom Feed
https://xkcd.com/newsletter/Text duplicate Email
http://threewordphrase.com/External Three Word Phrase
https://www.smbc-comics.com/External Subdomain SMBC
https://www.qwantz.com/External Subdomain Dinosaur Comics
https://oglaf.com/External Oglaf
https://www.asofterworld.com/External Subdomain A Softer World
https://buttersafe.com/External Buttersafe
https://pbfcomics.com/External Perry Bible Fellowship
https://questionablecontent.net/External Questionable Content
http://www.buttercupfestival.com/External Subdomain Buttercup Festival
https://www.homestuck.com/External Subdomain Homestuck
https://www.jspowerhour.com/External Subdomain Junior Scientist Power Hour
https://medium.com/civic-tech-...External Tips on technology and government
https://www.nytimes.com/intera...External Subdomain Climate FAQ
https://twitter.com/KHayhoeExternal Katharine Hayhoe
https://creativecommons.org/li...External Creative Commons Attribution-NonCommercial 2.5 License
https://xkcd.com/license.htmlMore details
https://xkcd.com/150/No Text
https://xkcd.com/730/No Text
https://xkcd.com/162/No Text
https://xkcd.com/688/No Text
https://xkcd.com/556/No Text

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://xkcd.com/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.03 seconds.
This page only loads 1 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (7 kB).

HTTP Response Header

NameValue
connectionkeep-alive
content-length2424
servernginx
content-typetext/html; charset=UTF-8
etag"688ce875-1b42"
expiresFri, 01 Aug 2025 16:23:24 GMT
cache-controlmax-age=300
content-encodingbr
accept-rangesbytes
dateMon, 04 Aug 2025 19:20:32 GMT
via1.1 varnish
age32
x-served-bycache-fra-etou8220083-FRA
x-cacheHIT
x-cache-hits1
x-timerS1754335232.262261,VS0,VE2
varyAccept-Encoding
statuscode200
http_versionHTTP/1.1

External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 4,145 referring domains.
This page has 569,745 backlinks.
This page has backlinks from 2,961 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /personal/

User-agent: GPTBot
Disallow: /

Similar sites

Search preview

xkcd.com
xkcd: Canon

Most important keywords

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

KeywordResultRecheck
xkcd61%Check
Canon50%Check
comics38%Check
Feed34%Check
Please34%Check
Mode34%Check
RSS Feed34%Check
Archive34%Check
Email34%Check
webcomic34%Check
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