a39.dk

📜 Historical scan 2026-06-16 13:15:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a39.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 11 December 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 152.115.50.2 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by mail.a39.dk. 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 65ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	—	—	—
ns2.curanet.dk	—	—	—

🌍 A Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
152.115.50.2	—	s5.zenep.eu	AS31027	GlobalConnect A/S	152.115.0.0/16	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.a39.dk	195.69.128.43	—	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 207ms

TXT Record
v=spf1 ip4:152.115.50.2 include:spf.stom.dk include:sendgrid.net ~all

✉️ SPF#

Policy	Record (a39.dk)
~all (soft fail)	v=spf1 ip4:152.115.50.2 include:spf.stom.dk include:sendgrid.net ~all

📨 DMARC#

Policy	Record (_dmarc.a39.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 2026-10-09 11:35:14

www CNAME	a39.dk (all on a39.dk) → 152.115.50.2 (AS31027)
www vs bare domain	Same network a39.dk: 152.115.50.2 (AS31027) www.a39.dk: 152.115.50.2 (AS31027)
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#

3 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
s1	s1.domainkey.u45076276.wl027.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u45076276.wl027.sendgrid.net	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

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

270ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2026042802
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 2026-10-15 02:21:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-12-11
Expires	2026-12-31 (72d)

🔗 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#

65ms

37ms

AAAA

54ms

TXT

207ms

CAA

49ms

HTTPS

40ms

TLSA

94ms

SOA

37ms

MTA-STS

40ms

DNSSEC

270ms

SRV

0ms

Total

764ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 11:35:14	1791ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 01:31:53	474ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 06:15:24	560ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 22:50:41	686ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 15:44:55	475ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 00:00:12	706ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:15:13 shown	764ms	2 NS 1 A 1 MX	🔒 Secure