holtetandklinik.dk

Records from scan: 2026-10-14 06:42:06 · 1869ms total · last checked 2026-10-19 15:07 (unchanged)

⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 46ms

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 92ms

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 111ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holtetandklinik-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::c 2a01:111:f403:ca09::a 2a01:111:f403:ca3c::8 52.101.185.21 52.101.68.21 52.101.68.29 52.101.91.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-matpr04cu00101.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 248ms

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#

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#

183ms

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

🏷️ SOA#

70ms

Field	Value
Serial	2026101304
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 2026-10-06 13:52:50

Field	Value
Registrar	ONE.COM A/S
Registered	2008-10-21
Expires	2026-10-31 (11d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

92ms

111ms

AAAA

55ms

TXT

248ms

CAA

117ms

HTTPS

113ms

TLSA

775ms

SOA

70ms

MTA-STS

89ms

DNSSEC

183ms

SRV

151ms

Total

1869ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 06:42:06 shown	1869ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 14:06:33	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