kotu.dk

📜 Historical scan 2026-06-24 12:26:42  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kotu.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 11 April 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 199.16.172.136 is hosted by Automattic, Inc (AS2635) in United States. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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   889ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

2 records   889ms
IPTTLPTRASNISP / OrgCIDRCountryCity
199.16.172.136 3600s — AS2635 Automattic, Inc 199.16.172.0/22 🇺🇸 United States San Francisco
199.16.173.90 3600s — AS2635 Automattic, Inc 199.16.172.0/22 🇺🇸 United States San Francisco

📧 MX Records#

2 records   875ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 3600s mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfigautoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 05:38:09
www199.16.172.136 199.16.173.90 (AS2635) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

1036ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

947ms
FieldValue
Serial2026033001
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-18 03:25:12
FieldValue
RegistrarCURANET A/S
Registered2018-04-11
Expires2027-04-30 (186d)

🔗 Same registrant#

2 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
forlagetkotu.dkCURANET A/S
tankevækkere.dkCURANET A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
889ms
A
889ms
MX
875ms
AAAA
898ms
TXT
1141ms
CAA
876ms
HTTPS
903ms
TLSA
2131ms
SOA
947ms
MTA-STS
215ms
DNSSEC
1036ms
SRV
994ms
Total
4053ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-26 00:21:15 490ms 2 NS 2 A 2 MX 🔒 Secure
2026-08-28 03:03:11 932ms 2 NS 2 A 2 MX 🔒 Secure
2026-06-27 20:25:36 538ms 2 NS 2 A 2 MX 🔒 Secure
2026-06-24 12:26:42 shown 4053ms 2 NS 2 A 2 MX 🔒 Secure
2026-06-22 14:31:23 1139ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-21 18:17:01 1156ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 05:55:46 601ms 2 NS 2 A 2 MX 🔒 Secure
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