tels.dk

📜 Historical scan 2026-07-11 13:59:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tels.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 5 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.47.159 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is not DNSSEC-signed, has no 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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.47.159	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.148.225	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	3600s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:94e1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:2f9f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.47.159,172.67.148.225 ech=AEX+DQBBJQAgACBnoQdAyjdxo1QZ/h8q5MnTy6HsI88n48t6aQts6QxOPgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:94e1,2606:4700:3033::6815:2f9f

📝 TXT Records#

1 records 211ms

TXT Record
v=spf1 a include:spf.curanet.dk ~all

✉️ SPF#

Policy	Record (tels.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk ~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 14:37:20

www	104.21.47.159 172.67.148.225 2606:4700:3031::ac43:94e1 2606:4700:3033::6815:2f9f (AS13335) (address records, no CNAME)
www vs bare domain	Same network tels.dk: 104.21.47.159 172.67.148.225 2606:4700:3031::ac43:94e1 2606:4700:3033::6815:2f9f (AS13335) www.tels.dk: 104.21.47.159 172.67.148.225 2606:4700:3031::ac43:94e1 2606:4700:3033::6815:2f9f (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

126ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2409080676
Primary NS (MNAME)	barbara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 11:13:19

Field	Value
Registrar	CURANET A/S
Registered	2026-03-05
Expires	2027-03-04 (136d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

36ms

38ms

AAAA

38ms

TXT

211ms

CAA

45ms

HTTPS

42ms

TLSA

353ms

SOA

0ms

MTA-STS

81ms

DNSSEC

126ms

SRV

100ms

Total

1458ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 14:37:20	764ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-01 09:02:31	755ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-16 05:28:11	871ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-27 13:07:29	1073ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-03 01:30:26	16921ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-11 13:59:09 shown	1458ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-24 03:14:49	798ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-17 17:38:33	1437ms	2 NS 2 A 2 MX	🔓 Insecure