Rank #4,865Updated November 10, 2026
uni-due.de
Universität Duisburg-Essen (UDE) – Studium und Forschung
The site runs on Font Awesome, jQuery, jQuery UI and 2 other technologies. Its email security grade is F. Its SSL certificate is issued by Hellenic Academic and Research Institutions CA and is valid for 104 more days.
- Domain age
- —
- Technologies
- 5
- Email security
- F
- SSL days left
- 104
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 134.91.197.147 | 76261 |
| MX | mx-serv3.uni-due.de 10 | 86400 |
| MX | mx-serv4.uni-due.de 10 | 86400 |
| MX | mx-serv5.uni-due.de 10 | 86400 |
| NS | ns1.uni-duisburg-essen.de | 86400 |
| NS | dns-2.dfn.de | 86400 |
| NS | ns2.uni-duisburg-essen.de | 86400 |
| TXT | apple-domain-verification=t3JfgbmXeFvCVwKO | 86400 |
| TXT | MS=D42AE4BAA7D47D587275500686025E3907354F80 | 86400 |
| TXT | google-site-verification=ao6bsU-PynQ0nGziXEU2rkcGKh1_DBnALmHLmdZv6uo | 86400 |
| TXT | v=spf1 ip4:132.252.0.0/16 ip4:134.91.0.0/16 ip4:193.30.112.1 ip6:2001:638:501::/48 include:_spf.tivian.com include:_spf.zimpel.de include:spf.server-he.de mx ~all | 86400 |
Technology stack
Fonts
Programming language
Web server
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | GR, GEANT TLS RSA 1, Hellenic Academic and Research Institutions CA |
| Expires | February 22, 2027 |
| Days remaining | 104 |
| Protocol | TLSv1.3 |
| Names | www.uni-due.de, www.uni-duisburg-essen.de, www-restart.uni-due.de, www-restart.uni-duisburg-essen.de, uni-due.de, uni-duisburg-essen.de |
Email security
FScore 48/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
- 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 | Universität Duisburg-Essen (UDE) – Studium und Forschung |
|---|---|
| Description | Die Universität Duisburg-Essen (UDE) bietet vielfältige Studiengänge und starke Forschung an zwei Campi. Sie ist Mitglied der Universitätsallianz Ruhr (UA Ruhr) |
| Language | de-1996 |
| Indexable | Yes |
| Word count | 605 |
About uni-due.de
What technology does uni-due.de use?
We detected 5 technologies on uni-due.de, including Font Awesome, jQuery, jQuery UI, PHP, Apache HTTP Server.
Does uni-due.de protect its email with SPF and DMARC?
uni-due.de scores 48/100 (grade F) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. DMARC policy is none (monitoring only). Spoofed mail is still delivered.
What are the name servers of uni-due.de?
uni-due.de uses ns1.uni-duisburg-essen.de, dns-2.dfn.de, ns2.uni-duisburg-essen.de.