guldmund.dk

📜 Historical scan 2026-06-17 10:06:08  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldmund.dk is a .dk domain served by 2 nameservers (arya.ns.cloudflare.com, ivan.ns.cloudflare.com). It was registered on 16 February 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.0.225 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. 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   32ms
NameserverIP addressesPTRASN / ISP
arya.ns.cloudflare.com 108.162.192.70
172.64.32.70
173.245.58.70
2606:4700:50::adf5:3a46
2803:f800:50::6ca2:c046
2a06:98c1:50::ac40:2046		 arya.ns.cloudflare.com
arya.ns.cloudflare.com
arya.ns.cloudflare.com
arya.ns.cloudflare.com
arya.ns.cloudflare.com
arya.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
ivan.ns.cloudflare.com 108.162.193.120
172.64.33.120
173.245.59.120
2606:4700:58::adf5:3b78
2803:f800:50::6ca2:c178
2a06:98c1:50::ac40:2178		 ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.ns.cloudflare.com
ivan.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   33ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.0.225 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.128.89 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

2 records   32ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::ac43:8059 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::6815:e1 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   32ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.0.225,172.67.128.89 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8059,2606:4700:3033::6815:e1

📝 TXT Records#

1 records   227ms
TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (guldmund.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_dmarc.guldmund.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 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 2026-10-24 07:04:20
wwwExists, no address
www vs bare domainwww does not resolve (all like this)
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#

2 records   84ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

97ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

32ms
FieldValue
Serial2406597779
Primary NS (MNAME)arya.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-17 16:57:51
FieldValue
RegistrarSimply.com A/S
Registered2018-02-16
Expires2027-02-28 (126d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
32ms
A
33ms
MX
31ms
AAAA
32ms
TXT
227ms
CAA
27ms
HTTPS
32ms
TLSA
84ms
SOA
32ms
MTA-STS
54ms
DNSSEC
97ms
SRV
0ms
Total
969ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 07:04:20 463ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-17 16:26:10 590ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-16 15:25:57 1951ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-09 03:07:53 2816ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-08 03:03:23 730ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-02 01:18:24 425ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-01 01:06:43 762ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-26 01:44:22 1089ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-24 04:23:44 587ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-17 05:02:00 1199ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-14 12:50:13 3930ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-28 17:25:05 1512ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-26 19:14:39 657ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-26 11:17:57 519ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-25 03:48:23 517ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-22 02:24:47 966ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-18 23:10:09 3594ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-16 06:51:53 980ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-15 04:03:39 3557ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-05 20:12:10 1084ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-29 05:03:43 835ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-19 23:09:58 720ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-16 16:17:52 1187ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-11 01:13:14 859ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-07 03:26:35 1243ms 2 NS 2 A 1 MX 🔒 Secure
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