extendio.dk

📜 Historical scan 2026-08-20 18:23:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

extendio.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.221 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 257ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 243ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.221	3600s	webcluster1.webpod18-cph3.g1i.one	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 245ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.250.110.26 2a00:1450:400c:c06::1a 2a00:1450:400c:c06::1a 2a00:1450:400c:c06::1b 2a00:1450:400c:c06::1b 2a00:1450:400c:c0b::1a 2a00:1450:400c:c0b::1a 2a00:1450:400c:c0b::1b 2a00:1450:400c:c0b::1b 64.233.184.26 64.233.184.27 66.102.1.26 66.102.1.27	wf-in-f26.1e100.net wb-in-f26.1e100.net wb-in-x1a.1e100.net wb-in-f27.1e100.net wb-in-x1b.1e100.net wa-in-f26.1e100.net wa-in-x1a.1e100.net wa-in-f27.1e100.net wa-in-x1b.1e100.net wa-in-f26.1e100.net wa-in-f27.1e100.net wb-in-f26.1e100.net wb-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 234ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:108:eb:382d:eee:e034	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 785ms

TXT Record
google-site-verification=xoAXbAK0VSx3UoYGlnZH_8GU5FQAhEqf9ZU__kLBOf4

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.extendio.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-12 11:03:53

www	46.30.215.221 2a02:2350:5:108:eb:382d:eee:e034 (AS51468) (address records, no CNAME)
www vs bare domain	Same network extendio.dk: 46.30.215.221 2a02:2350:5:108:eb:382d:eee:e034 (AS51468) www.extendio.dk: 46.30.215.221 2a02:2350:5:108:eb:382d:eee:e034 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

602ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-02 17:26:21

Field	Value
Registrar	ONE.COM A/S
Registered	2026-05-14
Expires	2027-05-13 (206d)

📋 WHOIS#

⏱️ Lookup Timing#

257ms

243ms

245ms

AAAA

234ms

TXT

785ms

CAA

288ms

HTTPS

245ms

TLSA

765ms

SOA

0ms

MTA-STS

369ms

DNSSEC

602ms

SRV

310ms

Total

8716ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 17:17:24	678ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 16:54:43	586ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 17:55:12	585ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 05:17:31	840ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 18:23:00 shown	8716ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 05:07:04	1787ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-21 01:04:10	1063ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-03 04:57:29	804ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 07:11:34	502ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 23:18:38	1117ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:10:00	1289ms	2 NS 1 A 1 MX	🔓 Insecure