tanktjek.dk DNS records

🖥️ Nameservers2 records 26ms

Nameserver	IP addresses	PTR	ASN / ISP
amit.ns.cloudflare.com	108.162.193.63 172.64.33.63 173.245.59.63 2606:4700:58::adf5:3b3f 2803:f800:50::6ca2:c13f 2a06:98c1:50::ac40:213f	amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com amit.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
melissa.ns.cloudflare.com	108.162.192.199 172.64.32.199 173.245.58.199 2606:4700:50::adf5:3ac7 2803:f800:50::6ca2:c0c7 2a06:98c1:50::ac40:20c7	melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com melissa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 25ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.80.179	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.152.182	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.80.179
🔶 Autoconfig	172.67.152.182

🔷 AAAA Records (IPv6)2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:50b3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:98b6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 30ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.80.179,172.67.152.182 ech=AEX+DQBBEAAgACCr8f/kgg/pJ5FJI/NdUqTZ3Ld/9apU/Dx0zahJhfBWeQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:50b3,2606:4700:3036::ac43:98b6

📝 TXT Records3 records 169ms

TXT Record
[20.05.2026]
MS=ms45683932
v=spf1 include:spf.simply.com -all

✉️ SPF

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

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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 / DANE2 records 57ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC94ms

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

🏷️ SOA0ms

Field	Value
Serial	2413597753
Primary NS (MNAME)	amit.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

26ms

A

25ms

MX

30ms

AAAA

32ms

TXT

169ms

CAA

31ms

HTTPS

30ms

TLSA

57ms

SOA

0ms

MTA-STS

50ms

DNSSEC

94ms

SRV

51ms

Total

673ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 04:21:52	673ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-28 06:35:55	905ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-24 18:22:29	755ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-23 16:39:38	3116ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-18 11:51:04	16971ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-06 23:21:01	1010ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-14 09:54:27	2879ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-08 18:46:00	1070ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-25 03:43:45	922ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-21 06:14:05	630ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-20 14:00:51	3752ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-18 00:26:28	765ms	2 NS 2 A 1 MX	🔒 Secure	View