con21.dk DNS records

🖥️ Nameservers2 records 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.atznet.dk	195.242.130.110 2001:67c:564:fffb::ffff	ns1.atznet.dk —	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.atznet.dk	2a00:1b18:2:3:2::2 62.69.152.36	ns2.atznet.dk ns2.atznet.dk	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.242.130.99	3600s	web2.atznet.dk	AS62121	Christian Ebsen ApS	195.242.130.0/23	🇩🇰 Denmark	—

📧 MX Records3 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx4.spamfri.dk	193.200.91.108 2001:67c:564:fffd::4001	mx4.spamfri.dk mx4.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	3600s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	3600s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	195.242.130.99
🔶 Autoconfig	195.242.130.99

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 118ms

TXT Record
v=spf1 include:_spf.atznet.dk -all

✉️ SPF

Policy	Record (con21.dk)
-all (hard fail)	v=spf1 include:_spf.atznet.dk -all

📨 DMARC

Policy	Record (_dmarc.con21.dk)
p=none (monitor only)	v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 / DANE3 records 68ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk	DANE-EE · SPKI · SHA-256	4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC86ms

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

🏷️ SOA0ms

Field	Value
Serial	2025031402
Primary NS (MNAME)	ns1.atznet.dk
Responsible (RNAME)	hostmaster@atznet.dk
Refresh	86400s
Retry	7200s
Expire	3600000s
Minimum (neg-cache TTL)	172800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

39ms

A

51ms

MX

46ms

AAAA

42ms

TXT

118ms

CAA

57ms

HTTPS

34ms

TLSA

68ms

SOA

0ms

MTA-STS

77ms

DNSSEC

86ms

SRV

68ms

Total

673ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 20:53:52	673ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-22 19:02:02	842ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-21 23:57:22	6931ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-20 16:32:21	1123ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 04:17:57	603ms	2 NS 1 A 3 MX	⚠️ Bogus	View
2026-06-16 22:42:46	65535ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-16 22:17:52	2176ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-16 22:03:57	509ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-16 22:00:43	724ms	2 NS 1 A 3 MX	🔒 Secure	View