rektor.dk DNS records

🖥️ Nameservers2 records 67ms

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 Records2 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.26.163	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.137.51	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rektor-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::d 2a01:111:f403:ca09::3 2a01:111:f403:ca09::4 52.101.68.16 52.101.68.32 52.101.73.145 52.101.73.4	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56

🔷 AAAA Records (IPv6)2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:1aa3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8933	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.163,172.67.137.51 ech=AEX+DQBB3gAgACAozdg6TF+IOLutI2raZBDRPBvAjRJn2ExG9kdRfnpPIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1aa3,2606:4700:3033::ac43:8933

🔌 SRV Records1 records 87ms

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

📝 TXT Records3 records 248ms

TXT Record
MS=ms43944560
RektorkollegietsSekretariat
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (rektor.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

🔗 TLSA / DANE

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

🔐 DNSSEC136ms

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

🏷️ SOA0ms

Field	Value
Serial	2413014735
Primary NS (MNAME)	grace.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

67ms

A

60ms

MX

51ms

AAAA

50ms

TXT

248ms

CAA

74ms

HTTPS

61ms

TLSA

226ms

SOA

0ms

MTA-STS

149ms

DNSSEC

136ms

SRV

87ms

Total

1110ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 13:31:26	1110ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-24 23:50:50	2566ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-15 18:53:17	5743ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-13 22:40:21	1517ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 11:12:29	13056ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 11:40:15	3449ms	2 NS 2 A 1 MX	🔓 Insecure	View