checkmate.dk

📜 Historical scan 2026-08-26 19:46:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

checkmate.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.98 is hosted by Cloudflare, Inc. (AS13335) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 55ms

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 Records#

2 records 61ms

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

📧 MX Records#

5 records 83ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	2633s	aspmx.l.google.com	173.194.221.27 2a00:1450:4010:c06::1b 2a00:1450:4010:c06::1b	lm-in-f27.1e100.net lj-in-f27.1e100.net lj-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	2633s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	2633s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	2633s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	2633s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.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 60ms

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	🇸🇦 Saudi Arabia	Riyadh
2a06:98c1:58::60	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:58:0:0:0:0:0/47	🇺🇸 United States	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 137ms

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

📝 TXT Records#

2 records 182ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 17:58:48

www CNAME	checkmate-2025-spszf.ondigitalocean.app (all on ondigitalocean.app) → 162.159.140.98 172.66.0.96 2606:4700:7::60 2a06:98c1:58::60 (AS13335)
www vs bare domain	Same network checkmate.dk: 162.159.140.98 172.66.0.96 2606:4700:7::60 2a06:98c1:58::60 (AS13335) www.checkmate.dk: 162.159.140.98 172.66.0.96 2606:4700:7::60 2a06:98c1:58::60 (AS13335)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

141ms

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

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

55ms

61ms

83ms

AAAA

60ms

TXT

182ms

CAA

75ms

HTTPS

72ms

TLSA

118ms

SOA

0ms

MTA-STS

121ms

DNSSEC

141ms

SRV

137ms

Total

892ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 17:58:48	777ms	4 NS 2 A 5 MX	🔒 Secure
2026-10-07 10:39:29	2836ms	4 NS 2 A 5 MX	🔒 Secure
2026-10-01 03:52:15	2272ms	4 NS 2 A 5 MX	🔒 Secure
2026-09-30 03:43:08	560ms	4 NS 2 A 5 MX	🔒 Secure
2026-08-26 19:46:41 shown	892ms	4 NS 2 A 5 MX	🔒 Secure
2026-06-28 07:54:51	863ms	4 NS 2 A 5 MX	🔒 Secure
2026-06-26 10:31:58	843ms	4 NS 2 A 5 MX	🔒 Secure
2026-06-16 20:25:23	813ms	4 NS 2 A 5 MX	🔒 Secure