sundtandcenter.dk

📜 Historical scan 2026-06-17 11:36:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sundtandcenter.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 65.21.223.192 is hosted by Hetzner Online GmbH (AS24940) in Finland. Mail is handled by sundtandcenter-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 40ms

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 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
65.21.223.192	—	ns192.comadev.lv	AS24940	Hetzner Online GmbH	65.21.0.0/16	🇫🇮 Finland	Helsinki

📧 MX Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	sundtandcenter-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09:: 2a01:111:f403:ca09::1 2a01:111:f403:ca09::20 52.101.68.0 52.101.68.16 52.101.68.18 52.101.68.5	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-du2pr03cu00105.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 106ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com +a:comadev.lv +mx include:_spf.wpcloud.com include:spf.rpost.net -all

✉️ SPF#

Policy	Record (sundtandcenter.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com +a:comadev.lv +mx include:_spf.wpcloud.com include:spf.rpost.net -all

📨 DMARC#

Policy	Record (_dmarc.sundtandcenter.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-10 15:29:32

www CNAME	sundtandcenter.dk (all on sundtandcenter.dk) → 65.21.223.192 (AS24940)
www vs bare domain	Same network sundtandcenter.dk: 65.21.223.192 (AS24940) www.sundtandcenter.dk: 65.21.223.192 (AS24940)
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

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit
selector1	selector1-sundtandcenter-dk._domainkey.sundtandcenter.onmicrosoft.com	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: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

128ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026051903
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

40ms

54ms

80ms

AAAA

43ms

TXT

106ms

CAA

50ms

HTTPS

42ms

TLSA

406ms

SOA

40ms

MTA-STS

53ms

DNSSEC

128ms

SRV

0ms

Total

970ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 03:00:45	1430ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 03:57:40	1107ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 12:24:50	965ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:36:36 shown	970ms	2 NS 1 A 1 MX	🔒 Secure