rfbb.dk DNS records

🖥️ Nameservers2 records 56ms

Nameserver	IP addresses	PTR	ASN / ISP
hugh.ns.cloudflare.com	108.162.193.117 172.64.33.117 173.245.59.117 2606:4700:58::adf5:3b75 2803:f800:50::6ca2:c175 2a06:98c1:50::ac40:2175	hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lauryn.ns.cloudflare.com	108.162.194.22 162.159.38.22 172.64.34.22 2606:4700:50::a29f:2616 2803:f800:50::6ca2:c216 2a06:98c1:50::ac40:2216	lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com lauryn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.19.240.93	—	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.19.241.93	—	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	rfbb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca09::c 2a01:111:f403:ca09::f 52.101.73.15 52.101.73.22 52.101.73.24 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 160ms

TXT Record
google-site-verification=3XyiVcz3PSxGXh90snzilrwIaTwbBVlU4ItpBh5S6MQ
google-site-verification=wEwbyV4vKMFB_eNK_ubQ3FY-wJUruRAoirNOJpoWk20
lime-domain-verification=D8ADBD73D7DA200
MS=ms14342904
v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all

✉️ SPF

Policy	Record (rfbb.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all

📨 DMARC

Policy	Record (_dmarc.rfbb.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:84cd4ddfaf5543a3bec9a5a696c24560@dmarc-reports.cloudflare.net

📬 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)

🔐 DNSSEC115ms

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

🏷️ SOA50ms

Field	Value
Serial	2405961645
Primary NS (MNAME)	hugh.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

56ms

A

39ms

MX

67ms

AAAA

31ms

TXT

160ms

CAA

41ms

HTTPS

47ms

TLSA

363ms

SOA

50ms

MTA-STS

44ms

DNSSEC

115ms

SRV

59ms

Total

1061ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 07:39:12	1875ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-29 23:21:47	2063ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 15:34:14	1127ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-14 14:01:55	1419ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 20:41:56	1061ms	2 NS 2 A 1 MX	🔓 Insecure	View