sanktknud.dk

📜 Historical scan 2026-09-30 15:09:32  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sanktknud.dk is a .dk domain served by 2 nameservers (jeremy.ns.cloudflare.com, josephine.ns.cloudflare.com). It was registered on 25 May 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.39.125 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by dns01.romoborger.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   41ms
NameserverIP addressesPTRASN / ISP
jeremy.ns.cloudflare.com 108.162.193.180
172.64.33.180
173.245.59.180
2606:4700:58::adf5:3bb4
2803:f800:50::6ca2:c1b4
2a06:98c1:50::ac40:21b4		 jeremy.ns.cloudflare.com
jeremy.ns.cloudflare.com
jeremy.ns.cloudflare.com
jeremy.ns.cloudflare.com
jeremy.ns.cloudflare.com
jeremy.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
josephine.ns.cloudflare.com 108.162.194.64
162.159.38.64
172.64.34.64
2606:4700:50::a29f:2640
2803:f800:50::6ca2:c240
2a06:98c1:50::ac40:2240		 josephine.ns.cloudflare.com
josephine.ns.cloudflare.com
josephine.ns.cloudflare.com
josephine.ns.cloudflare.com
josephine.ns.cloudflare.com
josephine.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.39.125 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.145.73 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   35ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s dns01.romoborger.dk 193.181.208.0
2a0f:f01:208:1::		 dns01.romoborger.dk
dns01.romoborger.dk		 AS44803 Webdock.io ApS
AS44803 Webdock.io ApS

🔷 AAAA Records (IPv6)#

2 records   45ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3035::6815:277d 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::ac43:9149 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   32ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.39.125,172.67.145.73 ech=AEX+DQBBigAgACClcPRSYIi9pRSXEYI2Mp1rDDKFgCgesWfIc4Sj2ogUFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:277d,2606:4700:3035::ac43:9149

📝 TXT Records#

1 records   228ms
TXT Record
v=spf1 include:_spf.maileroo.com ~all

✉️ SPF#

PolicyRecord (sanktknud.dk)
~all (soft fail) v=spf1 include:_spf.maileroo.com ~all

📨 DMARC#

PolicyRecord (_dmarc.sanktknud.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:fe0574cb888f4eb8b75f2e94d0c8e490@dmarc-reports.cloudflare.net;

📬 MTA-STS#

147ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID202604171700
max_age604800s
Policy MXrelay.no-email.cc, dns01.romoborger.dk

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-22 00:24:58
www104.21.39.125 172.67.145.73 2606:4700:3035::6815:277d 2606:4700:3035::ac43:9149 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

1 records   94ms
Service / OwnerTypeCert association
SMTP _25._tcp.dns01.romoborger.dk DANE-EE · SPKI · SHA-256 F81E6A86A4068B997ADC60BE160D1223…

🔐 DNSSEC#

58ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

49ms
FieldValue
Serial2415819222
Primary NS (MNAME)jeremy.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-22 00:58:45
FieldValue
RegistrarSimply.com A/S
Registered2019-05-25
Expires2027-05-31 (220d)

🔗 Same registrant#

5 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
eneboer.dkSimply.com A/S
foghdesign.dkSimply.com A/S
nr7.dkSimply.com A/S
romo-borger.dkSimply.com A/S
romoborger.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
41ms
A
40ms
MX
35ms
AAAA
45ms
TXT
228ms
CAA
52ms
HTTPS
32ms
TLSA
94ms
SOA
49ms
MTA-STS
147ms
DNSSEC
58ms
SRV
72ms
Total
896ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-22 00:24:58 906ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-15 01:28:56 2328ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-14 00:47:53 1622ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-07 14:39:19 1334ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 15:09:32 shown 896ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-26 09:27:10 1379ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-07 19:44:07 961ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-31 20:17:24 2287ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-30 19:44:54 3743ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-26 09:12:54 901ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-19 19:14:27 8848ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-16 14:43:48 1421ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-10 02:35:13 9313ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-15 15:18:35 1217ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-29 14:36:05 1201ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-26 19:31:57 1404ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-25 14:01:42 1606ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-19 22:16:59 1225ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-19 01:55:51 10769ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 07:26:50 1434ms 2 NS 2 A 1 MX 🔒 Secure
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