rektorkollegiet.dk

Records from scan: 2026-10-13 01:12:44 · 2155ms total · last checked 2026-10-21 10:35 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rektorkollegiet.dk is a .dk domain served by 2 nameservers (grace.ns.cloudflare.com, grant.ns.cloudflare.com). It was registered on 12 September 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.12 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by rektorkollegiet-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
grace.ns.cloudflare.com	108.162.192.159 172.64.32.159 173.245.58.159 2606:4700:50::adf5:3a9f 2803:f800:50::6ca2:c09f 2a06:98c1:50::ac40:209f	grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
grant.ns.cloudflare.com	108.162.195.130 162.159.44.130 172.64.35.130 2606:4700:58::a29f:2c82 2803:f800:50::6ca2:c382 2a06:98c1:50::ac40:2382	grant.ns.cloudflare.com grant.ns.cloudflare.com grant.ns.cloudflare.com grant.ns.cloudflare.com grant.ns.cloudflare.com grant.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.12	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.207.75	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rektorkollegiet-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca48::8 2a01:111:f403:ca48::e 52.101.103.36 52.101.68.39 52.101.91.159 52.101.91.21	mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-matpr04cu00207.inbound.protection.outlook.com mail-matpr05cu00105.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

2 records 44ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:5b0c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:cf4b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.12,172.67.207.75 ech=AEX+DQBB0AAgACBQLyNM4WIIc71mTXjK3ynKUxnPZR4u7rt59QVjYn7/JgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5b0c,2606:4700:3033::ac43:cf4b

🔌 SRV Records#

1 records 63ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 170ms

TXT Record
MS=ms31835586
RektorkollegietsSekretariat
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (rektorkollegiet.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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#

checked 2026-10-13 01:12:44

www	104.21.91.12 172.67.207.75 2606:4700:3031::6815:5b0c 2606:4700:3033::ac43:cf4b (AS13335) (address records, no CNAME)
www vs bare domain	Same network rektorkollegiet.dk: 104.21.91.12 172.67.207.75 2606:4700:3031::6815:5b0c 2606:4700:3033::ac43:cf4b (AS13335) www.rektorkollegiet.dk: 104.21.91.12 172.67.207.75 2606:4700:3031::6815:5b0c 2606:4700:3033::ac43:cf4b (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

114ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2417297543
Primary NS (MNAME)	grace.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-08-14 20:54:09

Field	Value
Registrar	PROCOPA IT ApS
Registered	2001-09-12
Expires	2026-09-30 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

37ms

42ms

AAAA

44ms

TXT

170ms

CAA

32ms

HTTPS

41ms

TLSA

751ms

SOA

33ms

MTA-STS

52ms

DNSSEC

114ms

SRV

63ms

Total

2155ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:12:44 shown	2155ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 15:07:46	942ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 22:32:42	829ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 14:18:44	10914ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 05:39:00	5861ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-14 20:53:31	1379ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 13:06:17	1985ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 23:18:39	1036ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 14:32:12	937ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:48:57	1135ms	2 NS 2 A 1 MX	🔓 Insecure