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SGSiteGraph

ros2.org

Oh noes!

Last scanned Aug 24, 2026, 1:21 PM · 3 views

69

Overall score

Fair

Summary

This website is hosted on GitHub. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores poor (35/100) and performance excellent (90/100). Top issue: Missing meta description.

United States
Hosted on GitHub

Top issues to fix

12 issues found · 4 high priority

  • No valid HTTPS/TLS certificate

    Security

    Serve the site over HTTPS (a free Let's Encrypt certificate works) — browsers mark HTTP sites as Not Secure and Google demotes them.

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

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

+6 more issues — details in the sections below.

60

SEO

6 issue(s) found

90

Performance

1.47 s

35

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.

Meta tags

Title
Oh noes!
Description
Canonical
Language
en
Charset
Viewport
width=device-width, initial-scale=1.0
Robots meta
noindex,nofollow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
GitHub
CDN provider
IP address
192.30.252.153
ASN
AS36459 (GITHUB - GitHub, Inc., US)

DNS records

TypeValue
A
  • 192.30.252.153
  • 192.30.252.154
AAAA
MX
TXT
NS
  • ns1.he.net
  • ns3.he.net
  • ns2.he.net
  • ns4.he.net
  • ns5.he.net
CAA
CNAME
  • ros2.org
IPv6 supportNo

TLS / SSL certificate

No TLS certificate information available.

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

1 internal · 3 external · 1 broken

Images

1 total · 0 missing alt

Scripts / Styles

5 scripts · 1 stylesheets

JS / CSS size

133 B · 10.0 KB

Page size

286 B

Robots.txt & Sitemap

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

SEO issues

  • Missing meta description
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://ros2.org
Final URL
http://www.ros2.org/
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.47 s
HTML size
286 B
Redirect chain
https://ros2.org → http://www.ros2.org/

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Frequently asked questions

What technology does ros2.org use?
We did not detect any specific technologies for ros2.org in the latest scan.
Is ros2.org secure (HTTPS)?
ros2.org did not present a valid TLS certificate at the time of the last scan.
Who hosts ros2.org?
ros2.org is hosted on GitHub.
What is ros2.org's SEO score?
ros2.org scored 60/100 for SEO in the latest analysis (fair).
What is ros2.org's overall website score?
ros2.org has an overall SiteGraph score of 69/100, combining SEO, performance, security, and accessibility.