citysupport.dk

Records from scan: 2026-10-02 17:09:22 · 667ms total · last checked 2026-10-20 02:02 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

citysupport.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 13 February 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

7 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 64.233.165.26	lr-in-x1b.1e100.net lr-in-f27.1e100.net lg-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 172ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (citysupport.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.citysupport.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:05467b80528a516@rep.dmarcanalyzer.com; ruf=mailto:05467b80528a516@for.dmarcanalyzer.com; fo=1;

📬 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#

checked 2026-10-14 22:05:40

www CNAME	ghs.google.com (all on google.com) → 142.250.154.121 2a00:1450:4001:c0f::79 (AS15169)
www vs bare domain	Only www resolves citysupport.dk: no address www.citysupport.dk: 142.250.154.121 2a00:1450:4001:c0f::79 (AS15169) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

71ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

54ms

Field	Value
Serial	2026100201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-02 17:40:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-02-13
Expires	2029-02-28 (862d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

41ms

47ms

AAAA

49ms

TXT

172ms

CAA

33ms

HTTPS

32ms

TLSA

111ms

SOA

54ms

MTA-STS

57ms

DNSSEC

71ms

SRV

57ms

Total

667ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 17:09:22 shown	667ms	2 NS 0 A 7 MX	🔒 Secure
2026-09-30 16:59:27	754ms	2 NS 0 A 7 MX	🔒 Secure
2026-09-30 08:28:54	465ms	2 NS 0 A 7 MX	🔒 Secure
2026-09-03 15:20:34	658ms	2 NS 0 A 7 MX	🔒 Secure
2026-08-07 07:14:53	1323ms	2 NS 0 A 7 MX	🔒 Secure
2026-07-02 02:40:41	1350ms	2 NS 0 A 7 MX	🔒 Secure
2026-07-02 00:36:36	5030ms	2 NS 0 A 7 MX	🔒 Secure
2026-06-16 22:28:23	65535ms	2 NS 0 A 7 MX	🔒 Secure
2026-06-16 21:10:53	432ms	2 NS 0 A 7 MX	🔒 Secure
2026-06-16 21:05:34	2264ms	2 NS 0 A 7 MX	🔒 Secure
2026-06-16 21:00:59	852ms	2 NS 0 A 7 MX	🔒 Secure