checkmate.dk DNS records

🖥️ Nameservers4 records 38ms

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 Records2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.98	600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
172.66.0.96	600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	—	—

📧 MX Records5 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	173.194.73.27 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b	lq-in-f27.1e100.net lt-in-f27.1e100.net lt-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.230.27 2404:6800:400b:c01b::1b	yunrtab-in-f27.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	173.194.43.26 2607:f8b0:400e:c1e::1a	yudlsqd-in-f26.1e100.net yudlsqd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:7::60	600s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2a06:98c1:58::60	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:58:0:0:0:0:0/47	—	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 41ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records2 records 133ms

TXT Record
google-site-verification=gQdZgN_jsG0HlkKEHKWcRkVbiiM0eTeQg0YzHmzzKz0
v=spf1 include:_spf.google.com include:emsd1.com ~all

✉️ SPF

Policy	Record (checkmate.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:emsd1.com ~all

📨 DMARC

Policy	Record (_dmarc.checkmate.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)

🔐 DNSSEC57ms

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

🏷️ SOA27ms

Field	Value
Serial	2026060200
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

38ms

A

33ms

MX

27ms

AAAA

28ms

TXT

133ms

CAA

29ms

HTTPS

37ms

TLSA

100ms

SOA

27ms

MTA-STS

35ms

DNSSEC

57ms

SRV

41ms

Total

843ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 19:46:41	892ms	4 NS 2 A 5 MX	🔒 Secure	View
2026-06-28 07:54:51	863ms	4 NS 2 A 5 MX	🔒 Secure	View
2026-06-26 10:31:58	843ms	4 NS 2 A 5 MX	🔒 Secure	View
2026-06-16 20:25:23	813ms	4 NS 2 A 5 MX	🔒 Secure	View