gunnar-jacobsen.dk DNS records

🖥️ Nameservers3 records 97ms

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 101ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.195.185.219	3600s	webhotel11.hostonline.dk	AS31027	GlobalConnect A/S	217.195.176.0/20	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	gunnarjacobsen-dk01e.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca09::24 2a01:111:f403:ca09::28 2a01:111:f403:ca09::b 52.101.103.140 52.101.181.153 52.101.68.36 52.101.73.8	mail-db5pr02cu00100.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am0pr04cu00500.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 249ms

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

📝 TXT Records2 records 298ms

TXT Record
MS=ms54232299
v=spf1 ip4:217.195.185.219 include:_spf.hostonline.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (gunnar-jacobsen.dk)
-all (hard fail)	v=spf1 ip4:217.195.185.219 include:_spf.hostonline.dk 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)

🔐 DNSSEC267ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083102
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

97ms

A

101ms

MX

99ms

AAAA

97ms

TXT

298ms

CAA

88ms

HTTPS

104ms

TLSA

995ms

SOA

0ms

MTA-STS

192ms

DNSSEC

267ms

SRV

249ms

Total

2261ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 20:11:13	2261ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 03:45:38	1849ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 03:37:20	1350ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 14:43:33	1584ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 07:56:29	4698ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 05:05:19	1412ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 07:59:06	1875ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-28 01:34:53	9449ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 21:26:14	2291ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 06:10:01	10467ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 06:21:14	1556ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 20:27:45	1499ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 18:02:52	1194ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 05:41:10	1342ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 06:30:51	1813ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 10:00:37	1455ms	3 NS 1 A 1 MX	🔒 Secure	View