giersings.dk

📜 Historical scan 2026-06-17 10:31:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

giersings.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 11 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.34 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by giersings-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 133ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.34	—	linux35.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	giersings-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::4 2a01:111:f403:ca09::5 2a01:111:f403:ca09::b 52.101.68.3 52.101.68.39 52.101.73.12 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am4pr0401cu00104.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 194ms

TXT Record
aosth5d2ffsmqcobh7n540beq
apple-domain-verification=CqQdhg02IZYVBHsj
giersings-realskole.azurewebsites.net
v=spf1 mx a include:spf.protection.outlook.com include:spfinclude.signflow.dk include:eu.mailgun.org ip4:80.210.94.205 include:dedicated.mysmtp.com ip4:89.221.167.1/24 -all

✉️ SPF#

Policy	Record (giersings.dk)
-all (hard fail)	v=spf1 mx a include:spf.protection.outlook.com include:spfinclude.signflow.dk include:eu.mailgun.org ip4:80.210.94.205 include:dedicated.mysmtp.com ip4:89.221.167.1/24 -all

📨 DMARC#

Policy	Record (_dmarc.giersings.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 2026-10-08 04:53:56

www	185.21.42.34 (AS48854) (address records, no CNAME)
www vs bare domain	Same network giersings.dk: 185.21.42.34 (AS48854) www.giersings.dk: 185.21.42.34 (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

73ms

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

🏷️ SOA#

62ms

Field	Value
Serial	2024050701
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 2026-10-17 10:54:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-01-11
Expires	2027-01-31 (98d)

🔗 Same registrant#

2 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).

Domain	Registrar
elevgr.dk	Punktum dk A/S (direct)
giersings-realskole.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

133ms

37ms

65ms

AAAA

44ms

TXT

194ms

CAA

129ms

HTTPS

63ms

TLSA

941ms

SOA

62ms

MTA-STS

129ms

DNSSEC

73ms

SRV

0ms

Total

1571ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 20:38:59	993ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 18:04:31	741ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 18:08:00	4953ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 06:06:50	2961ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 19:10:37	980ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 03:33:38	820ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:34:35	1091ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 10:31:41 shown	1571ms	2 NS 1 A 1 MX	🔒 Secure