back-office.dk

📜 Historical scan 2026-06-23 10:47:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

back-office.dk is a .dk domain served by 2 nameservers (ns1.simpleagencygroup.dk, ns2.simpleagencygroup.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.217.251 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by backoffice-dk01b.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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#

2 records 199ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simpleagencygroup.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simpleagencygroup.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 283ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.251	300s	vps2.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 237ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	14400s	backoffice-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::20 2a01:111:f403:ca09::5 2a01:111:f403:ca09::8 52.101.68.3 52.101.68.36 52.101.68.8 52.101.73.8	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 52.98.253.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 362ms

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

📝 TXT Records#

2 records 404ms

TXT Record
MS=ms62262586
v=spf1 ip4:134.119.184.123 include:spf.protection.outlook.com include:spf.rackhosting.com -all

✉️ SPF#

Policy	Record (back-office.dk)
-all (hard fail)	v=spf1 ip4:134.119.184.123 include:spf.protection.outlook.com include:spf.rackhosting.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 03:32:05

www CNAME	back-office.dk (all on back-office.dk) → 185.130.190.66 (AS210939)
www vs bare domain	Same network back-office.dk: 185.130.190.66 (AS210939) www.back-office.dk: 185.130.190.66 (AS210939)
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#

1 found

Selector	CNAME	Key
default	—	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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

271ms

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

🏷️ SOA#

307ms

Field	Value
Serial	2025031001
Primary NS (MNAME)	ns1.simpleagencygroup.dk
Responsible (RNAME)	hostmaster@curanet.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#

199ms

283ms

237ms

AAAA

216ms

TXT

404ms

CAA

214ms

HTTPS

262ms

TLSA

236ms

SOA

307ms

MTA-STS

236ms

DNSSEC

271ms

SRV

362ms

Total

1364ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 03:32:05	1196ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 20:38:34	2295ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 20:19:25	569ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 09:46:52	1743ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 08:34:19	1380ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-30 23:52:40	1137ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 21:49:37	2486ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 10:47:51 shown	1364ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 05:28:19	1187ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 01:18:54	634ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:59:37	919ms	2 NS 1 A 1 MX	🔒 Secure