doctri.dk

📜 Historical scan 2026-08-06 19:17:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

doctri.dk is a .dk domain served by 3 nameservers (ns1.xel.nl, ns2.xel.nl, ns3.xel.nl). It was registered on 14 May 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.154.226.35 is hosted by BIT BV (AS12859) in The Netherlands. Mail is handled by mx11.xel.nl, mx1.xel.nl and 2 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

3 records 185ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.xel.nl	2001:7b8:620:1::d59a:e20a 213.154.226.10	— —	AS12859 BIT BV AS12859 BIT BV
ns2.xel.nl	2001:7b8:620:1::d59a:e214 213.154.226.20	— —	AS12859 BIT BV AS12859 BIT BV
ns3.xel.nl	2a01:4f8:190:610e::2 78.46.142.112	— static.112.142.46.78.clients.your-server.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 180ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.154.226.35	1200s	—	AS12859	BIT BV	213.154.224.0/19	🇳🇱 The Netherlands	Arnhem

📧 MX Records#

4 records 169ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1200s	mx11.xel.nl	—	—	—
10	1200s	mx1.xel.nl	—	—	—
10	1200s	mx2.xel.nl	—	—	—
15	1200s	mx3.xel.nl	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	213.154.226.35
🔶 Autoconfig	213.154.226.35

🔷 AAAA Records (IPv6)#

1 records 178ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:7b8:620:1::d59a:e223	1200s	—	AS12859	BIT BV	2001:7b8:0:0:0:0:0:0/31	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 543ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	5	443	www.xel.nl

📝 TXT Records#

1 records 4616ms

TXT Record
v=spf1 a mx -all

✉️ SPF#

Policy	Record (doctri.dk)
-all (hard fail)	v=spf1 a mx -all

📨 DMARC#

Policy	Record (_dmarc.doctri.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 2026-10-16 04:11:11

www	213.154.226.35 2001:7b8:620:1::d59a:e223 (AS12859) (address records, no CNAME)
www vs bare domain	Same network doctri.dk: 213.154.226.35 2001:7b8:620:1::d59a:e223 (AS12859) www.doctri.dk: 213.154.226.35 2001:7b8:620:1::d59a:e223 (AS12859)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
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#

265ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026080601
Primary NS (MNAME)	ns1.xel.nl
Responsible (RNAME)	hostmaster@doctri.dk
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 19:05:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-05-14
Expires	2027-05-31 (226d)

📋 WHOIS#

⏱️ Lookup Timing#

185ms

180ms

169ms

AAAA

178ms

TXT

4616ms

CAA

230ms

HTTPS

449ms

TLSA

8170ms

SOA

0ms

MTA-STS

352ms

DNSSEC

265ms

SRV

543ms

Total

13695ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 04:11:11	853ms	3 NS 1 A 4 MX	🔓 Insecure
2026-10-08 18:54:59	1446ms	3 NS 1 A 4 MX	🔓 Insecure
2026-10-02 18:22:26	10341ms	3 NS 1 A 4 MX	🔓 Insecure
2026-10-01 18:19:43	1540ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-24 17:02:23	2255ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-23 16:15:33	1548ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-17 00:08:41	1778ms	3 NS 1 A 4 MX	🔓 Insecure
2026-09-03 21:48:11	2849ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-28 02:20:20	1494ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-26 00:55:17	4783ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-20 17:11:19	16284ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-14 20:33:54	18110ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-10 02:57:36	9690ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-06 19:17:49 shown	13695ms	3 NS 1 A 4 MX	🔓 Insecure
2026-08-05 09:18:56	1539ms	3 NS 1 A 4 MX	🔓 Insecure
2026-07-23 04:39:16	1799ms	3 NS 1 A 4 MX	❓ Unknown
2026-07-17 14:23:40	2326ms	3 NS 1 A 4 MX	❓ Unknown
2026-07-10 19:09:13	18393ms	3 NS 1 A 4 MX	❓ Unknown
2026-07-08 12:35:11	17989ms	3 NS 1 A 4 MX	🔓 Insecure
2026-07-04 18:46:05	3349ms	3 NS 1 A 4 MX	🔓 Insecure
2026-07-03 14:52:56	6212ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-26 13:13:43	15446ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-23 21:20:14	1160ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 17:03:04	3313ms	3 NS 1 A 4 MX	🔓 Insecure
2026-06-17 04:15:30	26172ms	3 NS 1 A 4 MX	🔓 Insecure