rb1940.dk

Records from scan: 2026-09-01 17:30:06 · 963ms total · last checked 2026-10-17 19:29 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rb1940.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.154.243.138 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rb1940-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.154.243.138	3600s	vdom161.net.dk1.zitcom.dk	AS48854	team.blue Denmark A/S	185.154.240.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rb1940-dk.mail.protection.outlook.com	2a01:111:f403:ca09::24 2a01:111:f403:ca09::6 2a01:111:f403:ca09::a 2a01:111:f403:ca48::12 52.101.68.21 52.101.68.8 52.101.73.123 52.101.73.28	mail-am6pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 152ms

TXT Record
MS=ms49999935
v=spf1 mx include:spf.protection.outlook.com include:mail.randersbolig.dk ip4:91.144.228.58 -all
wpj96N5GEDsOo56j/bBYhTUqDwxE2nI1gpL/XUyimujwir9TIKhO4dROcG8gxmCDJFx14ZJ2IEHnyq1ZJymLkQ==

✉️ SPF#

Policy	Record (rb1940.dk)
-all (hard fail)	v=spf1 mx include:spf.protection.outlook.com include:mail.randersbolig.dk ip4:91.144.228.58 -all

📨 DMARC#

Policy	Record (_dmarc.rb1940.dk)
p=quarantine	v=DMARC1;p=quarantine;sp=none;pct=100;adkim=s;aspf=s;rua=mailto:dmarc_agg@vali.email;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#

checked 2026-10-09 10:43:51

www	185.154.243.138 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rb1940.dk: 185.154.243.138 (AS48854) www.rb1940.dk: 185.154.243.138 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-rb1940-dk._domainkey.randersbolig.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-rb1940-dk._domainkey.randersbolig.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

error include:mail.randersbolig.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2024042201
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

47ms

49ms

52ms

AAAA

44ms

TXT

152ms

CAA

54ms

HTTPS

41ms

TLSA

380ms

SOA

0ms

MTA-STS

53ms

DNSSEC

103ms

SRV

70ms

Total

963ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-01 17:30:06 shown	963ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 03:14:18	939ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 20:38:03	892ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 17:13:35	1192ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:55:32	1111ms	2 NS 1 A 1 MX	🔒 Secure