ground.dk

📜 Historical scan 2026-07-02 00:13:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ground.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.43.13 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by ground-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 28ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.43.13	300s	linux13.scannet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ground-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::b 2a01:111:f403:ca04::f 2a01:111:f403:ca09::1 52.101.68.3 52.101.73.19 52.101.73.2 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 40.104.116.24
🔶 Autoconfig	185.21.43.13

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 141ms

TXT Record
facebook-domain-verification=2lm9st8h61lt61x31is9mbiqqc8pb3
MS=ms79298398
v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk -all

✉️ SPF#

Policy	Record (ground.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk -all

📨 DMARC#

Policy	Record (_dmarc.ground.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-13 09:49:35

www	185.21.43.13 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ground.dk: 185.21.43.13 (AS48854) www.ground.dk: 185.21.43.13 (AS48854)
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-ground-dk._domainkey.grounddk.e-v1.dkim.mail.microsoft	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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

58ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2025081401
Primary NS (MNAME)	ns1.curanet.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#

28ms

40ms

47ms

AAAA

31ms

TXT

141ms

CAA

46ms

HTTPS

29ms

TLSA

216ms

SOA

29ms

MTA-STS

37ms

DNSSEC

58ms

SRV

45ms

Total

908ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:35:33	1298ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 07:28:38	605ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 14:01:42	633ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 16:02:08	1191ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 16:08:05	17532ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:13:23 shown	908ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 09:24:16	1080ms	2 NS 1 A 1 MX	🔒 Secure