underio.dk

📜 Historical scan 2026-06-20 03:07:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

underio.dk is a .dk domain served by 3 nameservers (ns1.nazwa.pl, ns2.nazwa.pl, ns3.nazwa.pl). It was registered on 14 April 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.128.128.104 is hosted by Nazwa.pl Sp.z.o.o. (AS15967) in Poland. Mail is handled by underio.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#

3 records 120ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nazwa.pl	77.55.125.10	ns1.nazwa.pl	AS15967 Nazwa.pl Sp.z.o.o.
ns2.nazwa.pl	77.55.126.10	ns2.nazwa.pl	AS15967 Nazwa.pl Sp.z.o.o.
ns3.nazwa.pl	77.55.127.10	ns3.nazwa.pl	AS15967 Nazwa.pl Sp.z.o.o.

🌍 A Records#

1 records 117ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
85.128.128.104	3600s	static-ajw104.rev.nazwa.pl	AS15967	Nazwa.pl Sp.z.o.o.	85.128.128.0/17	🇵🇱 Poland	—

📧 MX Records#

1 records 119ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	underio.dk	85.128.128.104	static-ajw104.rev.nazwa.pl	AS15967 Nazwa.pl Sp.z.o.o.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	85.128.128.104
🔶 Autoconfig	85.128.128.104

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 412ms

TXT Record
v=spf1 mx a ~all

✉️ SPF#

Policy	Record (underio.dk)
~all (soft fail)	v=spf1 mx a ~all

📨 DMARC#

Policy	Record (_dmarc.underio.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#

4 records 165ms

Flags	Tag	Value
0	issue	certum.pl
0	issue	letsencrypt.org
0	issuewild	certum.pl
0	issuewild	letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 23:08:02

www	85.128.128.104 (AS15967) (address records, no CNAME)
www vs bare domain	Same network underio.dk: 85.128.128.104 (AS15967) www.underio.dk: 85.128.128.104 (AS15967)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

289ms

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

🏷️ SOA#

118ms

Field	Value
Serial	2008133200
Primary NS (MNAME)	ns1.nazwa.pl
Responsible (RNAME)	biuro@nazwa.pl
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-17 12:41:52

Field	Value
Registrar	NETIM
Registered	2025-04-14
Expires	2027-04-13 (176d)

🔗 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#

120ms

117ms

119ms

AAAA

119ms

TXT

412ms

CAA

165ms

HTTPS

115ms

TLSA

518ms

SOA

118ms

MTA-STS

90ms

DNSSEC

289ms

SRV

160ms

Total

1215ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 23:08:02	971ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-29 16:29:22	2322ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-25 14:21:35	9892ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-16 02:48:22	6232ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-24 02:14:07	1684ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-23 00:15:53	1547ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-02 10:42:05	940ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-26 15:47:12	1658ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-20 03:07:07 shown	1215ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-18 07:26:49	1498ms	0 NS 0 A 0 MX	❓ Unknown