astrofysik.dk

📜 Historical scan 2026-06-16 13:46:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

astrofysik.dk is a .dk domain served by 4 nameservers (ns01.one.com, ns02.one.com, ns1.nbi.dk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx2.nbi.dk. The zone is not DNSSEC-signed, 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#

4 records 384ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—
ns1.nbi.dk	—	—	—
ns2.nbi.dk	—	—	—

🌍 A Records#

1 records 339ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.212.5	—	—	AS1835	—	—	—	—

📧 MX Records#

1 records 363ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mx2.nbi.dk	130.225.213.194	mx2.nbi.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 610ms

TXT Record
Instrumentcenter for Dansk Astrofysik
v=spf1 -all

✉️ SPF#

Policy	Record (astrofysik.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.astrofysik.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s

📬 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 02:39:41

www	130.225.212.5 (AS1835) (address records, no CNAME)
www vs bare domain	Same network astrofysik.dk: 130.225.212.5 (AS1835) www.astrofysik.dk: 130.225.212.5 (AS1835)
Wildcard	No

✍️ DKIM keys#

6 found

Selector	CNAME	Key
default	—	Revoked (empty key)
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	—	Revoked (empty key)
s2	—	Revoked (empty key)

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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

559ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

337ms

Field	Value
Serial	2026042901
Primary NS (MNAME)	ns1.nbi.dk
Responsible (RNAME)	hostmaster@nbi.dk
Refresh	7200s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

384ms

339ms

363ms

AAAA

352ms

TXT

610ms

CAA

358ms

HTTPS

375ms

TLSA

251ms

SOA

337ms

MTA-STS

374ms

DNSSEC

559ms

SRV

0ms

Total

1867ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 02:39:41	1141ms	4 NS 1 A 1 MX	🔓 Insecure
2026-10-01 01:28:17	446ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-07 16:39:08	796ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-30 12:26:44	626ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 06:11:58	1307ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-23 21:01:42	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 08:05:57	744ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-23 03:13:36	2700ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:46:55 shown	1867ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:46:38	513ms	4 NS 1 A 1 MX	🔓 Insecure