Skip to main content
SGSiteGraph

debian-administration.org

Wayback Machine - Calendar of https://debian-administration.org/

Last scanned Aug 24, 2026, 1:21 PM · 1 view

59

Overall score

Fair

Summary

This website uses Nginx. SEO is poor (45/100) and accessibility is fair (60/100). Security scores poor (35/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Top issues to fix

16 issues found · 6 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

+10 more issues — details in the sections below.

45

SEO

8 issue(s) found

100

Performance

381 ms

35

Security

HTTPS & header checks

60

Accessibility

2 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.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Wayback Machine - Calendar of https://debian-administration.org/
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
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.

Hosting & CDN

Hosting provider
CDN provider
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
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-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 1 · H3 6

Links

31 internal · 114 external · 6 broken

Images

10 total · 10 missing alt

Scripts / Styles

17 scripts · 6 stylesheets

JS / CSS size

4.3 KB · 48.4 KB

Page size

142 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • Missing meta description
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text
  • No H1 heading found

Scan details

Requested URL
https://debian-administration.org
Final URL
http://web.archive.org/web/*/https://debian-administration.org/
HTTP status
200
HTTP version
HTTP/1.1
Response time
379 ms
HTML size
142 KB
Redirect chain
https://debian-administration.org → http://web.archive.org/web/*/https://debian-administration.org/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does debian-administration.org use?
debian-administration.org is built with Nginx.
Is debian-administration.org secure (HTTPS)?
debian-administration.org did not present a valid TLS certificate at the time of the last scan.
Who hosts debian-administration.org?
Hosting provider information for debian-administration.org is not available yet.
What is debian-administration.org's SEO score?
debian-administration.org scored 45/100 for SEO in the latest analysis (poor).
What is debian-administration.org's overall website score?
debian-administration.org has an overall SiteGraph score of 59/100, combining SEO, performance, security, and accessibility.