obsurv.dk

📜 Historical scan 2026-09-03 21:21:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

obsurv.dk is a .dk domain served by 3 nameservers (nsa.byte.nl, nsb.byte.nl, nsc.byte.nl). It was registered on 13 November 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by smtp1.byte.nl, smtp2.byte.nl. The zone is not DNSSEC-signed, has no 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#

3 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
nsa.byte.nl	46.21.228.110	nsa.byte.nl	AS34762 Combell NV
nsb.byte.nl	46.21.225.222	nsb.byte.nl	AS34762 Combell NV
nsc.byte.nl	87.238.161.15	nsc.byte.nl	AS34762 Combell NV

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	smtp1.byte.nl	83.217.77.178 83.217.77.179 83.217.77.182 83.217.77.183 83.217.77.186 83.217.77.187	cmbmx.byte.nl cmbmx.byte.nl cmbmx.byte.nl cmbmx.byte.nl cmbmx.byte.nl cmbmx.byte.nl	AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV AS34762 Combell NV
20	600s	smtp2.byte.nl	87.233.77.245	—	AS15703 TrueFullstaq B.V.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.81.168.116
🔶 Autoconfig	195.81.168.116

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 342ms

TXT Record
v=spf1 include:spf.byte.nl ?all

✉️ SPF#

Policy	Record (obsurv.dk)
?all (neutral)	v=spf1 include:spf.byte.nl ?all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 13:46:46

www	195.81.168.116 (AS3257) (address records, no CNAME)
www vs bare domain	Only www resolves obsurv.dk: no address www.obsurv.dk: 195.81.168.116 (AS3257) (all like this)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

84ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2003030410
Primary NS (MNAME)	nsa.byte.nl
Responsible (RNAME)	hostmaster@byte.nl
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 17:03:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-11-13
Expires	2026-11-30 (44d)

🔗 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#

52ms

51ms

AAAA

57ms

TXT

342ms

CAA

58ms

HTTPS

56ms

TLSA

89ms

SOA

0ms

MTA-STS

77ms

DNSSEC

84ms

SRV

111ms

Total

1443ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 21:47:43	1323ms	3 NS 0 A 2 MX	🔓 Insecure
2026-09-03 21:21:19 shown	1443ms	3 NS 0 A 2 MX	🔓 Insecure
2026-08-28 09:58:02	3782ms	3 NS 0 A 2 MX	🔓 Insecure
2026-08-26 18:21:05	1162ms	3 NS 0 A 2 MX	🔓 Insecure
2026-06-20 10:18:29	884ms	3 NS 0 A 2 MX	🔓 Insecure
2026-06-18 04:28:07	910ms	3 NS 0 A 2 MX	🔓 Insecure