e-teori.dk DNS records

🖥️ Nameservers4 records 131ms

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 108ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.24.57.1	3600s	—	AS397273	Render	216.24.57.0/24	🇺🇸 United States	—

📧 MX Records1 records 109ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	91.98.83.30
🔶 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 166ms

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

📝 TXT Records2 records 349ms

TXT Record
facebook-domain-verification=yt1ma2gwi4k651o1rf1a3a8jl7z8i2
google-site-verification=iX2sXAcc9l4g5wltl7vNYmLzT0njPBIa5VrW8zPyNgk

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.e-teori.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.e-teori.dk	verify-h3ve2paz.ssl.on-forge.com

🔗 TLSA / DANE2 records 1510ms

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

🔐 DNSSEC161ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080200
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

131ms

A

108ms

MX

109ms

AAAA

119ms

TXT

349ms

CAA

135ms

HTTPS

144ms

TLSA

1510ms

SOA

0ms

MTA-STS

129ms

DNSSEC

161ms

SRV

166ms

Total

2476ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-08 05:53:49	2476ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 09:48:17	4855ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 13:01:07	9669ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 23:13:14	709ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 23:23:23	1361ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 18:03:25	1168ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 06:14:14	1696ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 05:51:56	1785ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 05:30:15	546ms	4 NS 1 A 1 MX	🔒 Secure	View