altero.dk DNS records

🖥️ Nameservers2 records 216ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.123hotel.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.123hotel.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 229ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.141	3600s	web133.123hotel.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 203ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.spamfilter.io	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 341ms

TXT Record
google-site-verification=KVz62m3IwgpUYCDAdsm8ot9VNa7GOnklQwZod5gOvYA
v=spf1 a include:spf.curanet.dk include:spf.spamfilter.io include:mailgun.org ~all

✉️ SPF

Policy	Record (altero.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk include:spf.spamfilter.io include:mailgun.org ~all

📨 DMARC

Policy	Record (_dmarc.altero.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@altero.dk; ruf=mailto:dmarc@altero.dk; pct=100; fo=s;

📬 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 / DANE1 records 345ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.spamfilter.io	DANE-EE · SPKI · SHA-256	9A25F05F2E322DABDCC9B7A06AB47A2D…

🔐 DNSSEC305ms

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

🏷️ SOA203ms

Field	Value
Serial	2025091701
Primary NS (MNAME)	ns1.123hotel.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

216ms

A

229ms

MX

203ms

AAAA

218ms

TXT

341ms

CAA

200ms

HTTPS

220ms

TLSA

345ms

SOA

203ms

MTA-STS

232ms

DNSSEC

305ms

SRV

240ms

Total

1795ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 11:46:30	1795ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 13:24:32	2637ms	2 NS 1 A 1 MX	🔒 Secure	View