extendio.dk

📜 Historical scan 2026-06-17 09:10:00 · ← 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 not DNSSEC-signed, 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 107ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records#

1 records 84ms

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

📧 MX Records#

1 records 113ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	smtp.google.com	142.250.147.26 142.250.147.27 142.251.9.26 142.251.9.27	rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

1 records 94ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:108:eb:382d:eee:e034	—	—	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 231ms

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#

273ms

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

🏷️ SOA#

100ms

Field	Value
Serial	2026061401
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#

107ms

84ms

113ms

AAAA

94ms

TXT

231ms

CAA

104ms

HTTPS

97ms

TLSA

192ms

SOA

100ms

MTA-STS

107ms

DNSSEC

273ms

SRV

0ms

Total

1289ms

🕐 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	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 shown	1289ms	2 NS 1 A 1 MX	🔓 Insecure