comboit.dk

📜 Historical scan 2026-10-03 22:34:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

comboit.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 22 March 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.31.76.91 is hosted by DLX A/S (AS47527) in Denmark. Mail is handled by comboit-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.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.curanet.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.31.76.91	3600s	—	AS47527	DLX A/S	185.31.76.0/22	🇩🇰 Denmark	Herning

📧 MX Records#

1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	comboit-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::22 2a01:111:f403:ca09::26 2a01:111:f403:ca48::e 52.101.185.114 52.101.185.21 52.101.68.15 52.101.73.153	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.98.154.152
🔶 Autoconfig	94.231.109.204

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 71ms

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

📝 TXT Records#

1 records 137ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:email.freshdesk.com include:mail.zendesk.com include:servers.mcsv.net include:spf.scannet.dk ~all

✉️ SPF#

Policy	Record (comboit.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:email.freshdesk.com include:mail.zendesk.com include:servers.mcsv.net include:spf.scannet.dk ~all

📨 DMARC#

Policy	Record (_dmarc.comboit.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@comboit.dk; ruf=mailto:dmarc@comboit.dk; 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 03:16:59

www	185.31.76.91 (AS47527) (address records, no CNAME)
www vs bare domain	Same network comboit.dk: 185.31.76.91 (AS47527) www.comboit.dk: 185.31.76.91 (AS47527)
Wildcard	Yes: any name under the zone resolves
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
selector1	selector1-comboit-dk._domainkey.tsconsult.onmicrosoft.com	RSA · ~1024 bit below 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: 15/10 · policy: ~all

error 15 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

69ms

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

🏷️ SOA#

43ms

Field	Value
Serial	2026062801
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-16 04:37:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-03-22
Expires	2027-03-31 (164d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

32ms

35ms

53ms

AAAA

53ms

TXT

137ms

CAA

61ms

HTTPS

41ms

TLSA

495ms

SOA

43ms

MTA-STS

45ms

DNSSEC

69ms

SRV

71ms

Total

904ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 03:16:59	1032ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 22:34:17 shown	904ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:42:44	1448ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 23:27:36	1111ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 02:24:24	783ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 17:43:17	3949ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 11:39:10	950ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 21:50:16	798ms	2 NS 1 A 1 MX	🔒 Secure