catobyg.dk

📜 Historical scan 2026-06-18 20:24:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

catobyg.dk is a .dk domain served by 2 nameservers (ns1.msvit.dk, ns2.msvit.dk). It was registered on 15 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.99 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by catobyg-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 51ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.msvit.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.msvit.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#

1 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.99	3600s	linux7.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	catobyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca04::a 52.101.73.12 52.101.73.22 52.101.73.24 52.101.73.8	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 194ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 177ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (catobyg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.catobyg.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:dmarc@catobyg.dk

📬 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 08:33:02

www	185.21.40.99 (AS48854) (address records, no CNAME)
www vs bare domain	Same network catobyg.dk: 185.21.40.99 (AS48854) www.catobyg.dk: 185.21.40.99 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

129ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

42ms

Field	Value
Serial	2025011501
Primary NS (MNAME)	ns1.msvit.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-13 05:42:25

Field	Value
Registrar	CURANET A/S
Registered	2010-06-15
Expires	2027-06-30 (256d)

🔗 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#

51ms

47ms

34ms

AAAA

60ms

TXT

177ms

CAA

54ms

HTTPS

42ms

TLSA

239ms

SOA

42ms

MTA-STS

81ms

DNSSEC

129ms

SRV

194ms

Total

935ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 08:33:02	1043ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 03:45:28	937ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 09:28:29	1318ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 20:24:27 shown	935ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 19:46:17	852ms	2 NS 1 A 1 MX	🔒 Secure