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SGSiteGraph

ubuntulinux.org

Enterprise Open Source and Linux | Ubuntu

Last scanned Aug 24, 2026, 1:22 PM

92

Overall score

Excellent

Summary

Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT. This website uses Nginx. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing canonical link.

Ubuntu

Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

Top issues to fix

6 issues found

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 2 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

80

SEO

4 issue(s) found

100

Performance

518 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Ubuntu

Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

X (Twitter)LinkedInYouTubeFacebookInstagramtiktok.comubuntu.socialGitHublaunchpad.netwikidata.org

Meta tags

Title
Enterprise Open Source and Linux | Ubuntu
Description
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest
https://ubuntu.com/static/files/site.webmanifest?v=fbabd71

OpenGraph & Twitter Card

OpenGraph

og:title
Enterprise Open Source and Linux | Ubuntu
og:description
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
og:type
website
og:url
https://ubuntu.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
Enterprise Open Source and Linux | Ubuntu
twitter:description
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.

Technologies

Detected frameworks, languages, and tools.

Google AdsNginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
ubuntu.com
Valid from
Jul 2, 2026
Valid to
Sep 30, 2026
Days until expiry
35
SAN domains
ubuntu.com, www.ubuntu.com

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 33 · H3 8

Links

126 internal · 73 external · 2 broken

Images

72 total · 0 missing alt

Scripts / Styles

16 scripts · 3 stylesheets

JS / CSS size

11.2 KB · 31.3 KB

Page size

203 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing canonical link
  • Multiple H1 headings found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://ubuntulinux.org
Final URL
https://ubuntu.com/
HTTP status
200
HTTP version
HTTP/2
Response time
514 ms
HTML size
203 KB
Redirect chain
https://ubuntulinux.org → https://ubuntu.com/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does ubuntulinux.org use?
ubuntulinux.org is built with Google Ads, Nginx.
Is ubuntulinux.org secure (HTTPS)?
Yes. ubuntulinux.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 30, 2026.
Who hosts ubuntulinux.org?
Hosting provider information for ubuntulinux.org is not available yet.
What is ubuntulinux.org's SEO score?
ubuntulinux.org scored 80/100 for SEO in the latest analysis (great).
What is ubuntulinux.org's overall website score?
ubuntulinux.org has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
What company operates ubuntulinux.org?
ubuntulinux.org is operated by Ubuntu. Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.