frdk.dk DNS records

🖥️ Nameservers3 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.hostonline.dk	217.195.185.243 2a02:188:6004:14::10	ns4.hostonline.dk ns4.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns5.hostonline.dk	217.195.185.244 2a02:188:6004:14::11	ns5.hostonline.dk ns5.hostonline.dk	AS31027 GlobalConnect A/S AS31027 GlobalConnect A/S
ns6.hostonline.dk	85.191.126.85	ns6.hostonline.dk	AS204274 AURA Fiber A/S

🌍 A Records1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.34	60s	linux35.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	frdk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::e 2a01:111:f403:ca09::4 2a01:111:f403:ca09::d 52.101.68.12 52.101.68.5 52.101.68.8 52.101.73.22	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 87ms

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

📝 TXT Records1 records 197ms

TXT Record
v=spf1 mx a include:spf.onlinemail.io include:_spf.hostonline.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (frdk.dk)
-all (hard fail)	v=spf1 mx a include:spf.onlinemail.io include:_spf.hostonline.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.frdk.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)

🔐 DNSSEC9060ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082502
Primary NS (MNAME)	ns4.hostonline.dk
Responsible (RNAME)	hostmaster@hostonline.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	172800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

37ms

A

38ms

MX

54ms

AAAA

42ms

TXT

197ms

CAA

50ms

HTTPS

65ms

TLSA

621ms

SOA

0ms

MTA-STS

71ms

DNSSEC

9060ms

SRV

87ms

Total

10161ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 08:40:54	2405ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 14:44:47	10161ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 20:01:39	1625ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 05:35:37	1515ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 20:55:00	2287ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 04:43:59	1855ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 16:16:39	1810ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 07:46:18	1271ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 22:31:50	9497ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 20:42:27	2482ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 05:24:15	2429ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 06:30:15	1344ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 13:31:15	1559ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 07:39:35	916ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 23:24:31	875ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 13:04:58	1270ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:21:26	1224ms	3 NS 1 A 1 MX	🔒 Secure	View