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doxygen.nl

Doxygen homepage

Last scanned Jul 21, 2026, 12:33 PM · 2 views

80

Overall score

Great

Top issues to fix

9 issues found · 3 high priority

  • 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.

  • Over half of images are missing alt text

    Accessibility

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

  • Missing X-Content-Type-Options header

    Security

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

  • Missing canonical link

    SEO

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

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+3 more issues — details in the sections below.

Summary

Source code documentation and analysis tool. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (75/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.

75

SEO

4 issue(s) found

100

Performance

239 ms

75

Security

HTTPS & header checks

70

Accessibility

1 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.

Contact

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

Meta tags

Title
Doxygen homepage
Description
Source code documentation and analysis tool
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
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
Cloudflare
CDN provider
Cloudflare
IP address
172.67.142.203
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 172.67.142.203
  • 104.21.54.221
AAAA
  • 2606:4700:3033::6815:36dd
  • 2606:4700:3033::ac43:8ecb
MX
TXT
NS
  • kolton.ns.cloudflare.com
  • maleah.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
doxygen.nl
Valid from
Jul 19, 2026
Valid to
Oct 17, 2026
Days until expiry
88
SAN domains
doxygen.nl, *.doxygen.nl

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 6 · H3 1

Links

11 internal · 5 external · 1 broken

Images

10 total · 6 missing alt

Scripts / Styles

7 scripts · 3 stylesheets

JS / CSS size

246 KB · 0 B

Page size

14.5 KB

Robots.txt & Sitemap

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

SEO issues

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

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://doxygen.nl
Final URL
https://doxygen.nl
HTTP status
200
HTTP version
HTTP/2
Response time
239 ms
HTML size
14.5 KB
Redirect chain
https://doxygen.nl

Frequently asked questions

What technology does doxygen.nl use?
doxygen.nl is built with Bootstrap, Cloudflare Analytics, Google Ads.
Is doxygen.nl secure (HTTPS)?
Yes. doxygen.nl uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 17, 2026.
Who hosts doxygen.nl?
doxygen.nl is hosted on Cloudflare, behind Cloudflare CDN.
What is doxygen.nl's SEO score?
doxygen.nl scored 75/100 for SEO in the latest analysis (fair).
What is doxygen.nl's overall website score?
doxygen.nl has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.