tietgenkollegiet.dk DNS records

🖥️ Nameservers2 records 63ms

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 Records1 records 2035ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.166.209	600s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	tietgenkollegiet-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::4 2a01:111:f403:ca04::5 2a01:111:f403:ca04::b 52.101.68.3 52.101.73.11 52.101.73.19 52.101.73.6	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am6pr04cu00306.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)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 79ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records3 records 178ms

TXT Record
google-site-verification=sv_N7kyrgYH_5DN1NaPHfIdbtCnZqN0gTbo-PMrF8cw
MS=ms49414875
v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all

✉️ SPF

Policy	Record (tietgenkollegiet.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all

📨 DMARC

Policy	Record (_dmarc.tietgenkollegiet.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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)

🔐 DNSSEC9099ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

63ms

A

2035ms

MX

47ms

AAAA

48ms

TXT

178ms

CAA

45ms

HTTPS

72ms

TLSA

190ms

SOA

0ms

MTA-STS

65ms

DNSSEC

9099ms

SRV

79ms

Total

12153ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-12 06:06:24	12153ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 23:28:20	1201ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 01:31:25	1016ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 15:34:28	1022ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 00:36:34	975ms	2 NS 1 A 1 MX	🔒 Secure	View