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helmholtz.software

helmholtz.software ranks in the top 0.39% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.

Explore helmholtz.software in the Web Graph

Connectivity

#521,302harmonic-centrality rank
Top percentile
0.39%
Hosts observed
1

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://helmholtz.software/ answered with HTTP 200.

DNS records

A
  • 139.17.229.57
AAAA
No records found.
MX
  • 10 b1791.mx.srv.dfn.de.
  • 10 a1791.mx.srv.dfn.de.
  • 10 c1791.mx.srv.dfn.de.
NS
  • zrt7b.gfz-potsdam.de.
  • deneb.dfn.de.

Live preview

Screenshot of helmholtz.software

This site sends "X-Frame-Options: DENY", which blocks embedding it here.

Since helmholtz.software can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=utf-8
Cache-Control
private, no-cache, no-store, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self'; connect-src 'self' https://*; font-src 'self' https://fonts.gstatic.com; img-src 'self' data: https://*; base-uri 'self'; object-src 'none'; style-src 'self' 'unsafe-inline'; script-src 'self' 'nonce-OTU5MGQxZTctZGMyOS00MTBkLWE3MDQtNmM4ZDJjOGE1NDQ1' ;
Strict-Transport-Security
max-age=63072000; includeSubDomains; preload, max-age=63072000
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
geolocation=(self)

What each security header does

Redirect chain

  1. 1.http://helmholtz.software/HTTP 301

    → https://helmholtz.software/

  2. 2.https://helmholtz.software/HTTP 200

Meta tags

Title
Home | Helmholtz Research Software Directory
Description
The Research Software Directory is designed to show the impact research software has on research and society. We stimulate the reuse of research software and encourage proper citation of research software to ensure researchers and RSEs get credit for their work.
Canonical
Not set
Robots
Not set
Generator
Not set
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
Not set
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
5
Disallow rules (other agents)
0

Sitemaps declared:

  • https://helmholtz.software/software/sitemap.xml
  • https://helmholtz.software/projects/sitemap.xml
  • https://helmholtz.software/organisations/sitemap.xml
  • https://helmholtz.software/communities/sitemap.xml
  • https://helmholtz.software/news/sitemap.xml
  • https://helmholtz.software/sitemap.xml

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Next.jsframework

    X-Powered-By: Next.js

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Similar connectivity

Domains ranked just above and below it in the same snapshot.