Website

Answer
200 OKin 223 ms
Ends at
https://www.dfn.de/
Redirects
  • https://dfn.de/ (301)
Title
Startseite - DFN
Server
Apache
Protocols
HTTP/2
Certificate
Hellenic Academic and Research Institutions CA (GEANT TLS ECC 1) for dfn.de and www.dfn.de, valid until
www
Answers itself (200 OK)

DNS records

dfn.de

A
TTL 1 day
AAAA
TTL 1 day
MX
  • 10a1001.mx.srv.dfn.de
  • 10c1001.mx.srv.dfn.de
  • 10b1001.mx.srv.dfn.de
TTL 1 day
NS
  • ns1.dfn.de
  • ns2.dfn.de
  • ns3.dfn.de
  • ns4.dfn.de
TTL 1 day
TXT
  • apple-domain-verification=TdQByV6omDQj06SD
  • google-site-verification=AHsv25T5W2sYiYNmYvU6z8a2G1H_7FM0vJOZf5uOhAE
  • google-site-verification=aNjf9WiXv4G4mjXnYovwIjOS01qfUjBGQbV5xomVJ44
  • v=spf1 include:_spf.s1004.mx.srv.dfn.de a:deneb.dfn.de include:_spf.dfn-cert.de include:_spft.telekom.com ~all
TTL 1 day
SOA
  • Primary server
    ns1.dfn.de
    Contact
    [email protected]
    Serial
    1793098245
    Refresh
    8 hours
    Retry
    2 hours
    Expire
    35 days
    Negative TTL
    1 hour
TTL 1 day
CAA
None: any certificate authority may issue for this name

www.dfn.de

A
TTL 1 day
AAAA
TTL 1 day

_dmarc.dfn.de

TXT
  • v=DMARC1; p=none
TTL 1 day

As ns1.dfn.de answers them

Reputation

Domain blocklists

  • Spamhaus DBL Not listed
  • SURBL Not listed
  • URIBL Not listed

Rankings

5,248 Tranco rank down from 4,416 on 2026-09-21
7.69Open PageRank, out of 10
25,081Open PageRank position
1,540Referring domains

From Tranco and Open PageRank

WHOIS

Domain: dfn.de
Status: connect

DNSSEC

Every link from the root to dfn.de verifies.

. Verified

  • Found 3 DNSKEY records for .
  • DS=20326/SHA-256 verifies DNSKEY=20326/SEP
  • DS=38696/SHA-256 verifies DNSKEY=38696/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset

de Verified

  • Found 1 DS records for de in the . zone
  • DS=26755/SHA-256 has algorithm RSASHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
  • Found 2 DNSKEY records for de
  • DS=26755/SHA-256 verifies DNSKEY=26755/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=26755 and DNSKEY=26755/SEP verifies the DNSKEY RRset

dfn.de Verified

  • Found 1 DS records for dfn.de in the de zone
  • DS=52345/SHA-256 has algorithm ECDSAP256SHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=32911 and DNSKEY=32911 verifies the DS RRset
  • Found 2 DNSKEY records for dfn.de
  • DS=52345/SHA-256 verifies DNSKEY=52345/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=52345 and DNSKEY=52345/SEP verifies the DNSKEY RRset
  • Found 1 RRSIGs over SOA RRset
  • RRSIG=15867 and DNSKEY=15867 verifies the SOA RRset