blisudl.dk DNS records

🖥️ Nameservers3 records 31ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.195.185.213	3600s	webhotel05.hostonline.dk	AS31027	GlobalConnect A/S	217.195.176.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	blisudl-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 2a01:111:f403:ca09::e 52.101.68.29 52.101.73.123 52.101.73.145 52.101.73.19	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-as8pr04cu00803.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 61ms

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

📝 TXT Records1 records 153ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.blisudl.dk)
p=reject	v=DMARC1; p=reject; aspf=r;

📬 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)

🔐 DNSSEC106ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082602
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

31ms

A

37ms

MX

63ms

AAAA

32ms

TXT

153ms

CAA

31ms

HTTPS

57ms

TLSA

2339ms

SOA

0ms

MTA-STS

37ms

DNSSEC

106ms

SRV

61ms

Total

2867ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 09:12:46	2867ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 06:22:32	9526ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 03:45:49	1598ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 00:46:57	9975ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 13:45:36	1424ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 22:57:45	17203ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 19:51:06	25171ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 08:11:15	3229ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 06:22:02	1849ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 13:28:46	56948ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 11:44:09	1331ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 04:35:02	1626ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 00:39:25	1881ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 22:19:05	3036ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 13:25:40	4297ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 14:47:35	738ms	3 NS 1 A 1 MX	🔒 Secure	View