Rank #9,880Updated November 10, 2026
hhu.de
HHU
The site runs on TYPO3, Matomo, Font Awesome and 6 other technologies. Its email security grade is C. Its SSL certificate is issued by Hellenic Academic and Research Institutions CA and is valid for 166 more days.
- Domain age
- —
- Technologies
- 9
- Email security
- C
- SSL days left
- 166
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 134.99.128.236 | 3600 |
| MX | c2881.mx.srv.dfn.de 10 | 60 |
| MX | a2881.mx.srv.dfn.de 10 | 60 |
| MX | b2881.mx.srv.dfn.de 10 | 60 |
| NS | sirene.rz.uni-duesseldorf.de | 3600 |
| NS | selene.rz.uni-duesseldorf.de | 3600 |
| NS | dns-2.dfn.de | 3600 |
| NS | dns-1.dfn.de | 3600 |
| NS | dns-3.dfn.de | 3600 |
| CAA | issue 0 harica.gr | 3600 |
| CAA | issue 0 telesec.de | 3600 |
| CAA | issuewild 0 harica.gr | 3600 |
| CAA | iodef 0 mailto:[email protected] | 3600 |
| CAA | issue 0 pki.dfn.de | 3600 |
| CAA | issue 0 sectigo.com | 3600 |
| TXT | security_policy=https://www.hhu.de/it-sicherheit | 3600 |
| TXT | cisco-ci-domain-verification=4a60e9dddacd024a7029731869b6259bfb32e550f5004eb699afadf7d558cbf | 3600 |
| TXT | v=spf1 ip4:134.99.18.0/24 ip4:134.99.128.0/24 ip4:134.99.108.0/27 ip4:134.99.108.128/27 include:spf.qb-feedback.com include:_spf.o288.mx.srv.dfn.de -all | 3600 |
| TXT | HARICA-b01FuDqexohoPakaPN0 | 3600 |
| TXT | b7363772c1b9953bc35b74b12e12c69c | 3600 |
| TXT | T222-U324-V252 | 3600 |
| TXT | google-site-verification=kiygt8zU6VCAudun5LjKaoOEIJNgoM2yBWjSksiXaIw | 3600 |
| TXT | adobe-idp-site-verification=18ec973e322894c7c0c11b75d7434eb7c4a5b8d2f164b30a6d47f928c7b5f811 | 3600 |
| TXT | [email protected] | 3600 |
Technology stack
Analytics
CMS
Fonts
Programming language
Video
Web server
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | GR, GEANT TLS ECC 1, Hellenic Academic and Research Institutions CA |
| Expires | April 25, 2027 |
| Days remaining | 166 |
| Protocol | TLSv1.3 |
| Names | hhu.de, www.buergeruni.hhu.de, www.rz.uni-duesseldorf.de, elearning.hhu.de, www.gffu.hhu.de, www.uniorchester.hhu.de, www.smm.hhu.de, www.heine-slam.hhu.de, www.colab.hhu.de, shk-rat.hhu.de, zsu.hhu.de, www.studierendenakademie.hhu.de |
Email security
CScore 65/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- 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 rejected (hard fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodDKIM keys found (selector: s1).
- good3 MX record(s) found.
Homepage metadata
| Title | HHU |
|---|---|
| Description | Die Heinrich-Heine-Universität Düsseldorf ist eine der jüngeren Hochschulen des Landes NRW – gegründet 1965. Seit 1988 trägt die Universität den Namen des großen Sohnes der Stadt. |
| Language | de |
| Canonical | https://www.hhu.de/ |
| Indexable | Yes |
| Word count | 4409 |
About hhu.de
What technology does hhu.de use?
We detected 9 technologies on hhu.de, including Matomo, TYPO3, Font Awesome, Fancybox, jQuery, Slick.
Does hhu.de protect its email with SPF and DMARC?
hhu.de scores 65/100 (grade C) for email security. DMARC policy is none (monitoring only). Spoofed mail is still delivered. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of hhu.de?
hhu.de uses sirene.rz.uni-duesseldorf.de, selene.rz.uni-duesseldorf.de, dns-2.dfn.de, dns-1.dfn.de, dns-3.dfn.de.