tullin.dk DNS records

🖥️ Nameservers2 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.250.103.199	43200s	sejler.nu	AS8972	Host Europe GmbH	91.250.96.0/21	🇫🇷 France	Strasbourg

📧 MX Records2 records 46ms

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	91.250.103.199
🔶 Autoconfig	91.250.103.199

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 223ms

TXT Record
protonmail-verification=cd13c1758129e3169b342e7b3bacf62322b91d5b
v=spf1 include:_custspf.one.com include:_spf.protonmail.ch ~all

✉️ SPF

Policy	Record (tullin.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com include:_spf.protonmail.ch ~all

📨 DMARC

Policy	Record (_dmarc.tullin.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 101ms

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…

🔐 DNSSEC80ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 RegistrationWHOIS fetched 2026-07-03 00:39:47

Field	Value
Registrar	ONE.COM A/S
Registered	2025-01-17
Expires	2027-01-16 (136d)

📋 WHOIS

⏱️ Lookup Timing

NS

48ms

A

50ms

MX

46ms

AAAA

48ms

TXT

223ms

CAA

58ms

HTTPS

51ms

TLSA

101ms

SOA

0ms

MTA-STS

46ms

DNSSEC

80ms

SRV

74ms

Total

839ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 21:28:22	839ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-15 23:18:32	5217ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-07 18:49:08	9181ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-03 00:35:20	2844ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-21 00:15:45	1542ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-18 04:58:20	828ms	2 NS 1 A 2 MX	🔒 Secure	View