tbcoding.dk DNS records

🖥️ Nameservers4 records 247ms

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 280ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.195	3600s	linux28.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 234ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.protonmail.ch	176.119.200.128 185.205.70.128 185.70.42.128	mail.protonmail.ch mail.protonmail.ch mail.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG
20	3600s	mailsec.protonmail.ch	176.119.200.129 185.205.70.129 185.70.42.129	mailsec.protonmail.ch mailsec.protonmail.ch mailsec.protonmail.ch	AS62371 Proton AG AS62371 Proton AG AS62371 Proton AG

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	94.231.106.195
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 269ms

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

📝 TXT Records3 records 616ms

TXT Record
google-site-verification=1ara3zNs-ccpp2d5BuXjioM9mWBUQ0CPssBWsMxj2Ho
protonmail-verification=80ca2d71c4cd40b19403fffefb8430aaa91d6830
v=spf1 include:_spf.protonmail.ch include:spf.simply.com -all

✉️ SPF

Policy	Record (tbcoding.dk)
-all (hard fail)	v=spf1 include:_spf.protonmail.ch 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 / DANE4 records 179ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch	DANE-EE · SPKI · SHA-256	6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC361ms

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

🏷️ SOA230ms

Field	Value
Serial	2026011501
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

247ms

A

280ms

MX

234ms

AAAA

229ms

TXT

616ms

CAA

239ms

HTTPS

248ms

TLSA

179ms

SOA

230ms

MTA-STS

268ms

DNSSEC

361ms

SRV

269ms

Total

2385ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:55:14	892ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 23:19:26	949ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-08-06 18:32:26	17154ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-25 02:48:55	2385ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-19 18:47:10	723ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-18 06:25:40	782ms	4 NS 1 A 2 MX	🔒 Secure	View