citywifi.dk

📜 Historical scan 2026-06-16 21:01:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

citywifi.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 18 February 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.19 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by citywifi-dk.mail.protection.outlook.com. 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	—	—	—
ns2.curanet.dk	—	—	—

🌍 A Records#

1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.19	—	linux12.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	citywifi-dk.mail.protection.outlook.com	52.101.68.0 52.101.68.21 52.101.73.11 52.101.73.28	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 110ms

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

✉️ SPF#

Policy	Record (citywifi.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.google.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 2026-10-08 08:46:20

www	185.21.40.19 (AS48854) (address records, no CNAME)
www vs bare domain	Same network citywifi.dk: 185.21.40.19 (AS48854) www.citywifi.dk: 185.21.40.19 (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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2023070301
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 2026-10-11 03:45:30

Field	Value
Registrar	CURANET A/S
Registered	2018-02-18
Expires	2027-02-28 (123d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

32ms

36ms

AAAA

34ms

TXT

110ms

CAA

30ms

HTTPS

33ms

TLSA

1348ms

SOA

34ms

MTA-STS

55ms

DNSSEC

124ms

SRV

0ms

Total

1773ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 02:27:35	643ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 05:17:26	1126ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 08:06:04	908ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 22:42:36	65535ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:11:10	554ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:06:31	1829ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:01:36 shown	1773ms	2 NS 1 A 1 MX	🔒 Secure