b2bcentral.dk DNS records

🖥️ Nameservers4 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1277.awsdns-31.org	205.251.196.253 2600:9000:5304:fd00::1	ns-1277.awsdns-31.org ns-1277.awsdns-31.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1685.awsdns-18.co.uk	205.251.198.149 2600:9000:5306:9500::1	ns-1685.awsdns-18.co.uk ns-1685.awsdns-18.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-193.awsdns-24.com	205.251.192.193 2600:9000:5300:c100::1	ns-193.awsdns-24.com ns-193.awsdns-24.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-770.awsdns-32.net	205.251.195.2 2600:9000:5303:200::1	ns-770.awsdns-32.net ns-770.awsdns-32.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records1 records 70ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.75.64.75	60s	ec2-3-75-64-75.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.64.0.0/12	🇩🇪 Germany	Frankfurt am Main

📧 MX Records1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	inbound-smtp.eu-west-1.amazonaws.com	18.200.203.69 54.155.140.59 54.76.31.185	ec2-18-200-203-69.eu-west-1.compute.amazonaws.com ec2-54-155-140-59.eu-west-1.compute.amazonaws.com ec2-54-76-31-185.eu-west-1.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.mail.eu-west-1.awsapps.com → 54.170.201.93

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 248ms

TXT Record
google-site-verification=U4ewvQnCmJV-MhNg2BgmiAZP--XkWUvAZdF88fWEiJo
MS=ms17686202
v=spf1 include:amazonses.com ~all

✉️ SPF

Policy	Record (b2bcentral.dk)
~all (soft fail)	v=spf1 include:amazonses.com ~all

📨 DMARC

Policy	Record (_dmarc.b2bcentral.dk)
p=quarantine	v=DMARC1;p=quarantine;pct=100;fo=1

📬 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 / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC94ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-1277.awsdns-31.org
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

70ms

MX

67ms

AAAA

69ms

TXT

248ms

CAA

61ms

HTTPS

62ms

TLSA

204ms

SOA

0ms

MTA-STS

82ms

DNSSEC

94ms

SRV

140ms

Total

3717ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-09 22:09:06	3717ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-08-07 20:11:07	827ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-06 14:22:49	849ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-01 16:31:04	8781ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-31 16:16:57	571ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-29 23:48:39	734ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 20:27:29	688ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 20:12:26	737ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 19:52:26	708ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 19:38:55	8613ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 19:24:17	16753ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 16:45:44	8648ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-20 23:25:13	8708ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-02 00:14:01	5243ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 13:57:24	723ms	4 NS 1 A 1 MX	🔓 Insecure	View