Rank #6,602Updated November 10, 2026
gwdg.de
GWDG | GWDG - IT in der Wissenschaft
The site runs on Font Awesome, Content Security Policy, HSTS and 1 other technologies. Its email security grade is F. Its SSL certificate is issued by Hellenic Academic and Research Institutions CA and is valid for 181 more days.
- Domain age
- —
- Technologies
- 4
- Email security
- F
- SSL days left
- 181
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 134.76.9.48 | 2134 |
| MX | b1234.mx.srv.dfn.de 50 | 3600 |
| MX | a1234.mx.srv.dfn.de 50 | 3600 |
| MX | c1234.mx.srv.dfn.de 50 | 3600 |
| NS | dns3.gwdg.de | 86400 |
| NS | dns1.gwdg.de | 86400 |
| NS | dns2.gwdg.de | 86400 |
| TXT | google-site-verification=RlMXVIa9jlHUUBqfquGVvkPDplQrUmmGy04r9Pcirc8 | 3600 |
| TXT | mentimeter-8fd2f149-5c4a-4220-818b-5936a0bfca77 | 3600 |
| TXT | HARICA-Go642LixGt4gVaKjbGx | 3600 |
| TXT | yDUu5tuVTWp8EsPyo3WWpu7ouxX9SeMYrHQl/HGNgaJgrx4PdF+ZSJAS74cr7b1RtZ0PaAdSUyY/4vt8gXkclA== | 3600 |
| TXT | ZOOM_verify_LjBk1sFbQy-6wtNi_30Ayg | 3600 |
| TXT | JnNuhZ61Dq/WS8Kja10L597Ejmn3W3Km3Bx1GQpUmVzi7WaJQFDxRCrAsVsLHnSsQvXfNdNn54be3sXckBvmlA== | 3600 |
| TXT | anthropic-domain-verification-ngjg9a=ktgoQKYeyB59zn3Z2aFHmwtky | 3600 |
| TXT | cisco-ci-domain-verification=67d851688fcc1c57ee98bb39a861e2f214c9686f76ad3ac8eef0d47b9671b0fd | 3600 |
| TXT | HARICA-oWFX1S9DJ6DVfSX5Ano | 3600 |
| TXT | apple-domain-verification=wYO3NINDcbjFJ7TK | 3600 |
| TXT | MS=ms66406244 | 3600 |
| TXT | v=spf1 mx ip4:134.76.10.0/23 ip4:134.76.26.0/24 ip4:134.76.9.0/24 ~all | 3600 |
Technology stack
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | GR, GEANT TLS RSA 1, Hellenic Academic and Research Institutions CA |
| Expires | May 10, 2027 |
| Days remaining | 181 |
| Protocol | TLSv1.3 |
| Names | gwdg.de, hpc.gwdg.de, www.gwdg.info, gwdg.science, info.gwdg.de, sicherheit.gwdg.de, www-portal.gwdg.de, goettinger-rechenzentrum.de, security.gwdg.de, gwdg.eu, hpc-neu.gwdg.de, www.gwdg.de |
Email security
FScore 48/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- good3 MX record(s) found.
Homepage metadata
| Title | GWDG | GWDG - IT in der Wissenschaft |
|---|---|
| Language | de |
| Indexable | Yes |
| Word count | 332 |
About gwdg.de
What technology does gwdg.de use?
We detected 4 technologies on gwdg.de, including Font Awesome, Content Security Policy, HSTS, Apache HTTP Server.
Does gwdg.de protect its email with SPF and DMARC?
gwdg.de scores 48/100 (grade F) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of gwdg.de?
gwdg.de uses dns3.gwdg.de, dns1.gwdg.de, dns2.gwdg.de.