citycontainerrtr.dk

📜 Historical scan 2026-06-28 20:40:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

citycontainerrtr.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 28 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by frontmta.hostedsepo.dk. The zone is not DNSSEC-signed, 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#

3 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.19.253.158	3600s	—	—	—	—	🇩🇰 Denmark	—

📧 MX Records#

1 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	frontmta.hostedsepo.dk	92.43.124.44	—	AS44398 Itm8 A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 126ms

TXT Record
v=spf1 ptr:itafdelingen.net include:o._spf.hostedsepo.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (citycontainerrtr.dk)
-all (hard fail)	v=spf1 ptr:itafdelingen.net include:o._spf.hostedsepo.dk include:spf.protection.outlook.com -all

📨 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 2026-10-12 16:30:13

www	81.19.253.158 (address records, no CNAME)
www vs bare domain	Same network citycontainerrtr.dk: 81.19.253.158 www.citycontainerrtr.dk: 81.19.253.158
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔗 TLSA / DANE#

2 records 377ms

Service / Owner	Type	Cert association
SMTP _25._tcp.frontmta.hostedsepo.dk	DANE-EE · SPKI · SHA-256	F6EC319A6D18F16926CF1DC9D5AFACBE…
SMTP _25._tcp.frontmta.hostedsepo.dk	DANE-TA · SPKI · SHA-256	1E20888F63520C235F8E61FDEA725CCE…

🔐 DNSSEC#

56ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

28ms

Field	Value
Serial	2026062402
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-04 00:53:32

Field	Value
Registrar	Simply.com A/S
Registered	2011-02-28
Expires	2027-02-28 (131d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

33ms

28ms

AAAA

28ms

TXT

126ms

CAA

32ms

HTTPS

27ms

TLSA

377ms

SOA

28ms

MTA-STS

34ms

DNSSEC

56ms

SRV

39ms

Total

1026ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 16:30:13	2558ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-04 00:47:55	606ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-23 21:46:13	2441ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-10 05:25:20	485ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-26 22:40:00	547ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-11 06:00:43	16853ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-28 20:40:11 shown	1026ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 01:16:06	1167ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 20:55:04	621ms	2 NS 1 A 1 MX	🔒 Secure