holtetandklinik.dk

📜 Historical scan 2026-10-07 14:06:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holtetandklinik.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 21 October 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 168.220.87.211 is hosted by Fly.io, Inc. (AS40509) in United States. Mail is handled by holtetandklinik-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 90ms

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#

1 records 133ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
168.220.87.211	600s	ip-168-220-87-211.customer.flyio.net	AS40509	Fly.io, Inc.	168.220.80.0/20	🇺🇸 United States	—

📧 MX Records#

1 records 158ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holtetandklinik-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::a 2a01:111:f403:ca04::d 2a01:111:f403:ca38::a 52.101.103.162 52.101.181.153 52.101.91.156 52.101.91.159	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-maspr04cu00104.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 → 52.97.137.72

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 313ms

TXT Record
google-site-verification=CEbVVg_ulkD6aqJT_BLgTVg7BQe4ZQTgb2KhAwUKtyI
v=spf1 include:spf.protection.outlook.com include:spf.rpost.net -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.holtetandklinik.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 2026-10-14 06:42:06

www	168.220.87.211 (AS40509) (address records, no CNAME)
www vs bare domain	Same network holtetandklinik.dk: 168.220.87.211 (AS40509) www.holtetandklinik.dk: 168.220.87.211 (AS40509)
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
selector1	selector1-holtetandklinik-dk._domainkey.holtetandklinik.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

185ms

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

🏷️ SOA#

95ms

Field	Value
Serial	2026100605
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 2026-10-24 03:08:07

Field	Value
Registrar	ONE.COM A/S
Registered	2008-10-21
Expires	2026-10-31 (4d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

90ms

133ms

158ms

AAAA

109ms

TXT

313ms

CAA

113ms

HTTPS

106ms

TLSA

416ms

SOA

95ms

MTA-STS

119ms

DNSSEC

185ms

SRV

207ms

Total

1492ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 06:42:06	1869ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 14:06:33 shown	1492ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-06 13:34:13	2460ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 11:32:58	976ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 11:23:42	723ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 05:52:48	1200ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 05:47:13	809ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 19:53:04	3272ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-26 22:21:23	1318ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 16:59:16	697ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 05:43:15	2982ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 14:22:38	255ms	0 NS 0 A 0 MX	❓ Unknown