tendays.dk

📜 Historical scan 2026-07-31 23:30:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tendays.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.158.133.1 is hosted by Cloudflare, Inc. (AS13335) in Germany. Mail is handled by tendays-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

2 records 54ms

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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.158.133.1	600s	lovable-app-cd-1-4.p.l5e.io	AS13335	Cloudflare, Inc.	185.158.133.0/24	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tendays-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::e 2a01:111:f403:ca09::2 2a01:111:f403:ca09::c 52.101.68.15 52.101.68.36 52.101.68.39 52.101.73.28	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 228ms

TXT Record
google-site-verification=gvUfezns_qvKuXh3Wn41GTJqiRxwYpncBGKm9KvfE2k
MS=ms42542571
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (tendays.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.tendays.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:mathias.knudsen@tendays.dk; ruf=mailto:mathias.knudsen@tendays.dk

📬 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 2026-10-22 08:28:11

www	185.158.133.1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network tendays.dk: 185.158.133.1 (AS13335) www.tendays.dk: 185.158.133.1 (AS13335)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

140ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026072901
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 2026-10-08 03:49:07

Field	Value
Registrar	ONE.COM A/S
Registered	2025-02-11
Expires	2027-02-10 (108d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

49ms

99ms

AAAA

108ms

TXT

228ms

CAA

49ms

HTTPS

46ms

TLSA

424ms

SOA

0ms

MTA-STS

85ms

DNSSEC

140ms

SRV

104ms

Total

1318ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 08:28:11	469ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 02:28:50	1108ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 03:58:34	1333ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 13:29:44	1449ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 05:58:15	3137ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-17 07:17:14	4301ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-31 23:30:16 shown	1318ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 08:45:31	729ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 10:45:19	885ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 05:08:50	1005ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 05:13:00	979ms	2 NS 1 A 1 MX	🔒 Secure