Website
- Answer
- 200 OKin 1,336 ms
- Ends at
- https://www.heise-regioconcept.de/
- Redirects
- https://duf.de/ (301)
- Title
- heise regioconcept: Regionales Marketing, das wirkt!
- Server
- nginx
- Protocols
- HTTP/2
- Certificate
- Let's Encrypt (YR2) for duf.de and www.duf.de, valid until
- www
- Redirects to https://www.heise-regioconcept.de/ (301)
DNS records
duf.de
- MX
- TTL 1 day
- TXT
- Bi7asrsoStwcXtjj2ByCmfVNqY1z1AVg00KgABcu0CyviwIiiLVaKwTRPt5RzVlxlQXhM/xWCHXCv+rzdefEQQ==
- MS=ms96205507
- v=spf1 ip4:192.166.164.70 ip4:193.99.145.50 ip4:192.166.162.141 ip4:192.166.167.0/24 ip4:192.166.164.0/24 ip4:192.166.180.65 ip4:192.166.181.20 ip6:2a00:e68:14:908::60 ip6:2a00:e68:14:800::19:19 ip6:2a04:7680:d8f:164::70 include:spf.protection.outlook.com include:spf1.miovent.de include:spf.berlinercloud.net include:spf.hornetsecurity.com ~all
- TTL 1 hour
- SOA
- Primary server
- ns.duf.de
- Contact
- [email protected]
- Serial
- 2026091403
- Refresh
- 8 hours
- Retry
- 1 hour
- Expire
- 14 days
- Negative TTL
- 1 hour
- TTL 1 day
- CAA
- issuecomodoca.com
- issueletsencrypt.org
- issuesectigo.com
- issuewildcomodoca.com
- issuewildletsencrypt.org
- issuewildsectigo.com
- TTL 1 day
www.duf.de
_dmarc.duf.de
As dufdns.work.de answers them
Reputation
Domain blocklists
- Spamhaus DBL Not listed
- SURBL Not listed
- URIBL Not listed
Rankings
138,980
Tranco rank
up from 153,791 on 2026-09-21
4.03Open PageRank, out of 10
1,289,572Open PageRank position
92Referring domains
From Tranco and Open PageRank
WHOIS
Domain: duf.de Status: connect
DNSSEC
duf.de is not signed.
. 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
duf.de Not signed
- No DS records found for duf.de in the de zone