sinnet.dk

📜 Historical scan 2026-06-20 17:50:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sinnet.dk is a .dk domain served by 2 nameservers (etta.ns.cloudflare.com, yew.ns.cloudflare.com). It was registered on 25 May 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.100.101.136 is hosted by DKTV A/S (AS15516) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, 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#

2 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
etta.ns.cloudflare.com	108.162.192.156 172.64.32.156 173.245.58.156 2606:4700:50::adf5:3a9c 2803:f800:50::6ca2:c09c 2a06:98c1:50::ac40:209c	etta.ns.cloudflare.com etta.ns.cloudflare.com etta.ns.cloudflare.com etta.ns.cloudflare.com etta.ns.cloudflare.com etta.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yew.ns.cloudflare.com	108.162.195.80 162.159.44.80 172.64.35.80 2606:4700:58::a29f:2c50 2803:f800:50::6ca2:c350 2a06:98c1:50::ac40:2350	yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com yew.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.100.101.136	600s	91.100.101.136.generic-hostname.arrownet.dk	AS15516	DKTV A/S	91.100.0.0/15	🇩🇰 Denmark	Brøndby

📧 MX Records#

7 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	aspmx.l.google.com	173.194.221.27 2a00:1450:400c:c02::1a 2a00:1450:400c:c02::1a	lm-in-f27.1e100.net wn-in-x1a.1e100.net wn-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	600s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	600s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4000:1025::1b	so-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	600s	aspmx2.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	600s	aspmx3.googlemail.com	172.253.158.27 2404:6800:4008:c01::1b	so-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	600s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	600s	aspmx5.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 186ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (sinnet.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~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 10:12:15

www CNAME	sinnet.dk (all on sinnet.dk) → 91.100.101.136 (AS15516)
www vs bare domain	Same network sinnet.dk: 91.100.101.136 (AS15516) www.sinnet.dk: 91.100.101.136 (AS15516)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

87ms

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

🏷️ SOA#

87ms

Field	Value
Serial	2406872682
Primary NS (MNAME)	etta.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 02:20:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-05-25
Expires	2027-06-30 (251d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

43ms

65ms

AAAA

40ms

TXT

186ms

CAA

49ms

HTTPS

41ms

TLSA

74ms

SOA

87ms

MTA-STS

38ms

DNSSEC

87ms

SRV

106ms

Total

669ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:12:15	577ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-05 01:52:29	2814ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-03 01:18:41	1086ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-01 01:07:18	685ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-01 00:30:07	2622ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-30 00:19:27	728ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-20 09:16:11	1813ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-18 01:16:28	1207ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-12 07:50:21	1378ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-16 12:01:07	2413ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-06 06:16:05	2542ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-24 05:04:09	4558ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-23 04:33:49	2610ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-20 00:24:11	2498ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-18 05:11:40	10156ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-12 11:55:22	9502ms	2 NS 1 A 7 MX	🔒 Secure
2026-07-02 23:10:58	13949ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-22 14:02:00	1206ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-20 17:50:33 shown	669ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-18 06:17:37	5444ms	2 NS 1 A 7 MX	🔒 Secure