rktktr.dk DNS records

🖥️ Nameservers4 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	3600s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	autoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records2 records 2047ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	1	443	autodiscover.migadu.com
_imaps._tcp	0	1	993	imap.migadu.com

📝 TXT Records2 records 140ms

TXT Record
hosted-email-verify=t4qatmrm
v=spf1 include:spf.migadu.com -all

✉️ SPF

Policy	Record (rktktr.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC

Policy	Record (_dmarc.rktktr.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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)

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2026051802
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

38ms

MX

39ms

AAAA

35ms

TXT

140ms

CAA

51ms

HTTPS

40ms

TLSA

2057ms

SOA

0ms

MTA-STS

57ms

DNSSEC

86ms

SRV

2047ms

Total

4906ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 14:18:11	4906ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-28 12:48:10	868ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-23 15:05:25	810ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 22:49:10	1052ms	4 NS 1 A 2 MX	🔒 Secure	View