b2bcentral.dk

📜 Historical scan 2026-08-09 22:09:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

b2bcentral.dk is a .dk domain served by 4 nameservers (ns-1277.awsdns-31.org, ns-1685.awsdns-18.co.uk, ns-193.awsdns-24.com and 1 more). It was registered on 17 July 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.75.64.75 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by inbound-smtp.eu-west-1.amazonaws.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 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 Records#

1 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 Records#

1 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 Records#

3 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 09:19:24

www CNAME	b2bcentral.dk (all on b2bcentral.dk) → 3.75.64.75 (AS16509)
www vs bare domain	Same network b2bcentral.dk: 3.75.64.75 (AS16509) www.b2bcentral.dk: 3.75.64.75 (AS16509)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

94ms

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

🏷️ SOA#

0ms

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#

WHOIS fetched 2026-10-08 12:07:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-07-17
Expires	2027-07-16 (269d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

70ms

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
2026-10-09 09:19:24	4791ms	4 NS 1 A 1 MX	🔓 Insecure
2026-10-07 22:39:37	2866ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-09 22:09:06 shown	3717ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-07 20:11:07	827ms	1 NS 0 A 0 MX	❓ Unknown
2026-08-06 14:22:49	849ms	1 NS 0 A 0 MX	❓ Unknown
2026-08-01 16:31:04	8781ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-31 16:16:57	571ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-29 23:48:39	734ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-27 20:27:29	688ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-26 20:12:26	737ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-25 19:52:26	708ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-24 19:38:55	8613ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-23 19:24:17	16753ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-22 16:45:44	8648ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-20 23:25:13	8708ms	1 NS 0 A 0 MX	❓ Unknown
2026-07-02 00:14:01	5243ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:57:24	723ms	4 NS 1 A 1 MX	🔓 Insecure