blockshaft.dk DNS records

🖥️ Nameservers4 records 396ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnscluster.dk	2001:41d0:701:1100::7ec7 57.129.78.20	vps-1448e198.vps.ovh.net vps-1448e198.vps.ovh.net	AS16276 OVH SAS AS16276 OVH SAS
ns2.dnscluster.dk	212.95.58.14 2a00:c98:400f:104:1c00:a8ff:fe00:2ac	ns2.dnscluster.dk ns2.dnscluster.dk	AS28753 Leaseweb Deutschland GmbH AS28753 Leaseweb Deutschland GmbH
ns3.ns-infra.nl	213.184.84.70 2a09:3a00:4070::1	— —	AS59795 PerfGrid AS59795 PerfGrid
ns4.ns-infra.nl	2a06:a005:16d0:45::a 45.140.220.10	ns4.dnscluster.dk ns4.dnscluster.dk	AS142594 SpeedyPage Ltd AS142594 SpeedyPage Ltd

🌍 A Records1 records 291ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.184.85.233	60s	—	AS59795	PerfGrid	213.184.84.0/23	🇳🇱 The Netherlands	—

📧 MX Records2 records 278ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	mail.blockshaft.dk	80.160.71.163	mail1.curanet.dk	AS3292 TDC Holding A/S
20	60s	backup-mx.zitcom.dk	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	213.184.85.233
🔶 Autoconfig	213.184.85.233

🔷 AAAA Records (IPv6)1 records 397ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a09:3a00:30e9::1	60s	—	AS59795	PerfGrid	2a09:3a00:3000:0:0:0:0:0/40	🇳🇱 The Netherlands	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 943ms

TXT Record
v=spf1 +a +mx +include:spf-record.net ~all

✉️ SPF

Policy	Record (blockshaft.dk)
~all (soft fail)	v=spf1 +a +mx +include:spf-record.net ~all

📨 DMARC

Policy	Record (_dmarc.blockshaft.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.blockshaft.dk	blockshaft.dk.acme-challenge.dk

🔗 TLSA / DANE

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

🔐 DNSSEC520ms

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

🏷️ SOA234ms

Field	Value
Serial	2026062202
Primary NS (MNAME)	ns1.dnscluster.dk
Responsible (RNAME)	hostmaster@blockshaft.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

396ms

A

291ms

MX

278ms

AAAA

397ms

TXT

943ms

CAA

386ms

HTTPS

337ms

TLSA

1562ms

SOA

234ms

MTA-STS

506ms

DNSSEC

520ms

SRV

495ms

Total

3877ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-02 04:36:31	3877ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-24 12:14:31	1276ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-24 04:44:59	2400ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-21 10:41:22	932ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 14:50:35	623ms	2 NS 1 A 2 MX	🔒 Secure	View