Carpentries.org - SEO Checker

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Overview of the SEO Check
Meta information
66% 
Page quality
54% 
Page structure
79% 
Link structure
95% 
Server
45% 
External factors
100% 
SEO Score
Response time
0.04 s
File size
29.20 kB
Words
333
Media files
18
Number of links
51 internal / 23 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
The Carpentries
The page title is too short. (144 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: Germany
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
generatorHugo 0.139.2
viewportwidth=device-width
langen-us
og:urlhttps://carpentries.org/
og:site_nameThe Carpentries
og:titleHome
og:descriptionThe Carpentries is a registered 501(c)3 non-profit organisation based in Delaware, USA. We are a global community teaching foundational computational and data science skills to researchers in academia, industry and government.
og:localeen_us
og:typewebsite
og:imagehttps://carpentries.org/thecarpentries-opengraph.png
charsetUTF-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
There are only 333 words on this page. Good pages should have about 800 words of useful content.
25.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
4 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 15.14 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" 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)
6 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
/carpentries-logo.svgThe Carpentries
/images/hero-background.jpgNo alt attribute provided
https://carpentries.org/sponsors/mellon.svgNo alt attribute provided
/sponsors/moore-logo.svgNo alt attribute provided
/sponsors/alfred-sloan-logo.svgNo alt attribute provided
/sponsors/chan-zuck-logo.svgNo alt attribute provided
/sponsors/posit_logo.svgNo alt attribute provided
...timonials/saranya_canchi_testimonial.jpgSaranya Canchi
/testimonials/damien_irving_testimonial.jpgDamien Irving
...timonials/scott_peterson_testimonial.jpgScott Peterson
/carpentries-logo-footer.svgThe Carpentries
https://carpentries.org/mastodon-logo.svgMastodon
https://carpentries.org/linkedin-logo.svgLinkedIn
https://carpentries.org/slack-logo.svgSlack
https://carpentries.org/github-logo.svgGithub
https://carpentries.org/zenodo-logo.svgZenodo
https://carpentries.org/youtube-logo.svgYoutube
https://carpentries.org/bluesky-logo.svgBluesky

Page structure

H1 heading
(Critically important)
The Carpentries teaches foundational coding and data science skills to researchers worldwide.
The H1 heading is perfect.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 The Carpentries teaches foundational coding and data science skills to researchers worldwide.
H2 The Carpentries has built a community of
H2 Our volunteer-led workshops are small, hands on, and interactive.
H2 Our Supporters
H2 Subscribe to our newsletter
H4 About us
H4 Our Community
H4 Membership
H4 Workshops
H4 Lessons
H4 Lesson Development
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 23 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://carpentries.org/The Carpentries
https://datacarpentry.org/External Data Carpentry
https://datacarpentry.org/External Text duplicate Data Carpentry
https://librarycarpentry.org/External Library Carpentry
https://librarycarpentry.org/External Text duplicate Library Carpentry
https://software-carpentry.org/External Software Carpentry
https://software-carpentry.org/External Text duplicate Software Carpentry
https://carpentries.org/Text duplicate IMG-ALT The Carpentries
https://carpentries.org/about-us/Text duplicate The Carpentries
/about-us/impact/Impact
/about-us/governance/Governance
/about-us/financials/Financials
/about-us/team/Our Team
/about-us/careers/Careers
/about-us/contact/Contact Us
/workshops/Workshops
https://carpentries.org/lessons/Lessons
/instructor-training/Instructor Training
/instructor-trainer-training/Instructor Trainer Training
/lesson-development/Lesson Development Training
/community/Community
/community/get-involvedGet Involved
https://docs.carpentries.org/External Subdomain Handbook
https://amy.carpentries.org/External Subdomain AMY
/support/membershipMembership
/support/sponsorshipSponsorship
/support/pricingPricing
https://www.zeffy.com/en-US/do...External Subdomain Donate
https://carpentries.org/blog/Blog
/about-us/newsletter/Newsletter
/community/events/Calendar
/about-us/contact/Text duplicate Contact Us
https://carpentries.org/search/Search
/workshops/host-workshop/Host a workshop
/support/membership/Become a member organisation
/community/get-involved/Become a volunteer
/instructor-training/Become an Instructor
/community/Join our community
/workshops/upcoming-workshops/Find a workshop
https://www.mellon.org/External Subdomain No Text
https://www.moore.org/External Subdomain No Text
https://sloan.org/External No Text
https://chanzuckerberg.com/External No Text
https://posit.co/External No Text
https://carpentries.org/support/Support us
/about-us/newsletter/Subscribe to newsletter
https://carpentries.org/about-us/Our Mission
https://carpentries.org/about-us/Our History
https://carpentries.org/about-us/Our Values
/community/Our Volunteers
/about-us/governance/Our Governance
/community/get-involved/Text duplicate Get Involved
/support/membership/membership...Membership FAQ
/support/membership/member-list/Current Members
/support/membership/Become a Member
/workshops/workshops-faq/Workshops FAQ
/workshops/upcoming-workshops/Upcoming Workshops
https://amy.carpentries.org/fo...External Subdomain Request a workshop
https://carpentries.org/lessons/Search Lessons
/instructor-training/Text duplicate Instructor Training
/instructor-trainer-training/Text duplicate Instructor Trainer Training
/lesson-development/Collaborative Lesson Development Training
/lesson-development/community-...Carpentries Incubator
/lesson-development/community-...Carpentries Lab
https://carpentries.org/privacy/Privacy Policy
https://carpentries.org/license/License
https://hachyderm.io/@thecarpe...External IMG-ALT Mastodon
https://www.linkedin.com/compa...External Subdomain IMG-ALT LinkedIn
https://slack-invite.carpentri...External Subdomain IMG-ALT Slack
https://github.com/carpentriesExternal IMG-ALT Github
https://zenodo.org/communities...External IMG-ALT Zenodo
https://www.youtube.com/thecar...External Subdomain IMG-ALT Youtube
https://bsky.app/profile/carpe...External IMG-ALT Bluesky
https://www.zeffy.com/en-US/do...External Subdomain Text duplicate Donate

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://carpentries.org/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is excellent with 0.04 seconds.
The file size of the HTML document is fine (29 kB).

HTTP Response Header

NameValue
content-typetext/html
content-length29928
dateMon, 09 Jun 2025 21:45:11 GMT
last-modifiedMon, 09 Jun 2025 20:54:11 GMT
etag"b444a1fae773f34f9fbadd0d99411b32"
serverAmazonS3
x-cacheHit from cloudfront
via1.1 8614f084c2572336b13eed108c40e01e.cloudfront.net (CloudFront)
x-amz-cf-popFRA56-P11
x-amz-cf-idQHZSsT1tL-SKo0Oi99ZJJALVNZGBCRjrrCKGgbGPcLO_SHI7gJRnpw==
age1523
x-xss-protection1; mode=block
x-frame-optionsSAMEORIGIN
referrer-policystrict-origin-when-cross-origin
content-security-policydefault-src https: 'unsafe-eval' 'unsafe-inline'; object-src 'none'
x-content-type-optionsnosniff
strict-transport-securitymax-age=31536000
varyOrigin
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 649 referring domains.
This page has 3,612 backlinks.
This page has backlinks from 438 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

No valid Robots.txt file was found.

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carpentries.org
The Carpentries

Most important keywords

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

KeywordResultRecheck
Carpentries81%Check
Data50%Check
Search50%Check
foundational50%Check
science50%Check
skills50%Check
researchers50%Check
Data Science50%Check
teaches50%Check
coding50%Check
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