a2b.dk DNS records

🖥️ Nameservers4 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records1 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
137.117.166.35	600s	—	AS8075	Microsoft Corporation	137.116.0.0/15	🇳🇱 The Netherlands	Amsterdam

📧 MX Records4 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	3600s	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	3600s	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	3600s	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 102ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records5 records 286ms

TXT Record
google-site-verification=9uxALlvm5ksxVxB9U9dc57EXzD5EsK4Yoz1ugi20IMg
google-site-verification=P-4GxjX_NAQnupBQQdbGiww0CGOUuF2w5cGlbuu8zKw
klaviyo-site-verification=T8N7BN
prod-websites.azurewebsites.net
v=spf1 include:_spf17570.spfprotect.com -all

✉️ SPF

Policy	Record (a2b.dk)
-all (hard fail)	v=spf1 include:_spf17570.spfprotect.com -all

📨 DMARC

Policy	Record (_dmarc.a2b.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6486ff7d2f2a7@dmarc.centerasecurity.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

🔗 TLSA / DANE8 records 88ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…

🔐 DNSSEC84ms

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

🏷️ SOA0ms

Field	Value
Serial	2026070311
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

60ms

MX

70ms

AAAA

56ms

TXT

286ms

CAA

77ms

HTTPS

58ms

TLSA

88ms

SOA

0ms

MTA-STS

84ms

DNSSEC

84ms

SRV

102ms

Total

1063ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 12:24:42	1063ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-08-20 19:00:26	5764ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-08-18 11:39:48	6949ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-08-06 13:59:58	1673ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-07-31 16:55:26	1656ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-07-22 19:19:54	1228ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 22:02:40	1469ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-07-13 11:50:46	1440ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-07-03 13:14:00	9423ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-06-30 03:04:30	1092ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-06-21 08:15:23	3312ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-06-20 23:24:33	1131ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 07:37:54	809ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-06-19 22:20:02	1220ms	4 NS 1 A 4 MX	🔒 Secure	View
2026-06-16 12:52:48	2128ms	4 NS 1 A 4 MX	🔒 Secure	View