Opensource.apple.com - SEO Checker

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Overview of the SEO Check
Meta information
74% 
Page quality
36% 
Page structure
100% 
Link structure
97% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.26 s
File size
10.60 kB
Words
184
Media files
7
Number of links
10 internal / 8 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Apple Open Source
The page title is too short. (176 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: United States of America
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)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
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)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, viewport-fit=cover
langen-us
og:typewebsite
charsetutf-8

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Page quality

Content
(Critically important)
There are only 184 words on this page. Use at least 250 words to provide useful information.
26.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
5 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 14.38 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, viewport-fit=cover" is provided.
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)
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
/images/projects/swift.27248a76.pngNo alt attribute provided
/images/projects/swift.27248a76.pngNo alt attribute provided
/images/projects/container.0ab19e47.pngNo alt attribute provided
/images/projects/container.0ab19e47.pngNo alt attribute provided
/images/projects/webkit.c0cd4c44.pngNo alt attribute provided
/images/projects/webkit.c0cd4c44.pngNo alt attribute provided
/images/releases.4d8c049c.pngNo alt attribute provided

Page structure

H1 heading
(Critically important)
Open Source at Apple.
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 Open Source at Apple.
H2 Featured open source projects
H2 Releases
H2 Apple Open Source Footer
H3 Swift
H3 Container
H3 WebKit
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 8 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://opensource.apple.com/Open Source
https://opensource.apple.com/Anchor Open Menu
/projectsProjects
/releasesReleases
/projectsView all projects
/projects/swiftDetails
https://swift.org/New window External Website
/projects/containerText duplicate Details
https://github.com/apple/conta...New window External GitHub
/projects/webkitText duplicate Details
https://webkit.org/New window External Text duplicate Website
/releasesView releases
https://www.apple.com/New window External Subdomain Apple
https://www.apple.com/External Subdomain Apple Inc.
https://www.apple.com/legal/pr...External Subdomain Privacy Policy
https://www.apple.com/legal/in...External Subdomain Terms of Use
https://www.apple.com/legal/External Subdomain Legal
/sitemapSite Map

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://opensource.apple.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 0.26 seconds.
This page only loads 2 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (11 kB).

HTTP Response Header

NameValue
x-amz-id-2lYrwAvOr9G4tXOPecS3/xNYR16x731RUMRcAOqhGjsyIcrcan1O9Glt9iy6LsPzf893nHvdr9DU=
x-amz-request-id2WNZV0BGHBC8MTRR
serverAmazonS3
dateWed, 21 Oct 2026 20:04:44 GMT
last-modifiedThu, 08 Oct 2026 02:00:37 GMT
etag"de0c6e44d4155643cf466c94ccc8d1d3-df"
content-typetext/html
cache-controlmax-age=3600, public
varyAccept-Encoding
content-encodinggzip
content-length2878
age0
connectionkeep-alive
viahttp/1.1 defra3-edge-bx-005.ts.apple.com (acdn/25.17695)
x-cachemiss
cdnuuid972d1d23-ebce-4472-9d31-d0a4e857825b-593058343
content-security-policydefault-src 'self' blob: data: *.akamaized.net *.apple.com *.apple-mapkit.com *.cdn-apple.com *.organicfruitapps.com; child-src blob: embed.music.apple.com embed.podcasts.apple.com swdlp.apple.com www.apple.com www.instagram.com platform.twitter.com www.youtube-nocookie.com; img-src 'unsafe-inline' blob: data: *.apple.com *.apple-mapkit.com *.cdn-apple.com *.mzstatic.com; script-src 'unsafe-inline' 'unsafe-eval' blob: *.apple.com *.apple-mapkit.com www.instagram.com platform.twitter.com; style-src 'unsafe-inline' *.apple.com
strict-transport-securitymax-age=31536000
x-frame-optionsSAMEORIGIN
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 141 referring domains.
This page has 267 backlinks.
This page has backlinks from 129 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

opensource.apple.com
Apple Open Source

Most important keywords

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

KeywordResultRecheck
Open82%Check
Source82%Check
Apple82%Check
Open Source82%Check
Apple Open Source82%Check
Open source software70%Check
Source Web63%Check
Source Software62%Check
Source Code62%Check
Projects45%Check
Show more keywords and terms

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