ctweb.dk

📜 Historical scan 2026-10-01 07:04:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ctweb.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 25 May 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.188.79.209 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by ctweb-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 30ms

Nameserver	IP addresses	PTR	ASN / 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#

1 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.188.79.209	3600s	—	AS48854	team.blue Denmark A/S	89.188.72.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ctweb-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::c 2a01:111:f403:ca21::8 2a01:111:f403:ca48::a 52.101.103.162 52.101.103.39 52.101.68.29 52.101.91.159	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00207.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
🔶 Autoconfig	89.188.78.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 49ms

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

📝 TXT Records#

2 records 123ms

TXT Record
google-site-verification=duXkvm1tCUMk9MzbDuYezdVfqNVwtFyAxbMYvNwwBUA
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.ctweb.dk)
p=none (monitor only)	v=DMARC1;p=none

📬 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 10:13:57

www	89.188.79.209 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ctweb.dk: 89.188.79.209 (AS48854) www.ctweb.dk: 89.188.79.209 (AS48854)
Wildcard	Yes: any name under the zone resolves
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#

78ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2026031901
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-08 10:15:35

Field	Value
Registrar	CURANET A/S
Registered	2009-05-25
Expires	2027-05-31 (224d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

31ms

35ms

AAAA

22ms

TXT

123ms

CAA

30ms

HTTPS

34ms

TLSA

592ms

SOA

43ms

MTA-STS

61ms

DNSSEC

78ms

SRV

49ms

Total

1050ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 10:13:57	1381ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:04:10 shown	1050ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 02:30:08	1461ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 19:32:15	1358ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 21:34:20	772ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 13:38:40	1976ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 08:21:23	953ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 23:10:32	675ms	2 NS 1 A 1 MX	🔒 Secure