sanderu.dk

📜 Historical scan 2026-07-26 13:00:48 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sanderu.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 17 March 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 151.236.218.48 is hosted by Akamai Connected Cloud (AS63949) in United Kingdom. Mail is handled by mail.sanderu.dk. 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 36ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
151.236.218.48	600s	mail.sanderu.dk	AS63949	Akamai Connected Cloud	151.236.216.0/21	🇬🇧 United Kingdom	London

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mail.sanderu.dk	151.236.218.48	mail.sanderu.dk	AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	151.236.218.48
🔶 Autoconfig	151.236.218.48

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 178ms

TXT Record
v=spf1 mx:sanderu.dk ip4:151.236.218.48 -all

✉️ SPF#

Policy	Record (sanderu.dk)
-all (hard fail)	v=spf1 mx:sanderu.dk ip4:151.236.218.48 -all

📨 DMARC#

Policy	Record (_dmarc.sanderu.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:c6yvwadg@ag.dmarcian-eu.com;

📬 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 18:21:43

www CNAME	sanderu.dk (all on sanderu.dk) → 151.236.218.48 (AS63949)
www vs bare domain	Same network sanderu.dk: 151.236.218.48 (AS63949) www.sanderu.dk: 151.236.218.48 (AS63949)
Wildcard	Yes: any name under the zone resolves
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#

56ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026072612
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 2026-10-05 02:00:09

Field	Value
Registrar	ONE.COM A/S
Registered	2005-03-17
Expires	2027-03-31 (156d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

30ms

35ms

AAAA

29ms

TXT

178ms

CAA

36ms

HTTPS

29ms

TLSA

113ms

SOA

0ms

MTA-STS

47ms

DNSSEC

56ms

SRV

46ms

Total

743ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 18:21:43	1817ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 18:38:38	1186ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 13:26:38	1023ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 08:03:14	839ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 07:56:46	793ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 06:36:41	528ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 20:14:52	928ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 18:34:21	778ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 22:51:45	689ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 09:12:11	730ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 06:46:27	1018ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 10:48:38	873ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-30 04:13:03	4902ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-27 13:44:00	2804ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-26 13:00:48 shown	743ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-24 11:58:28	8732ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 17:53:14	694ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 14:28:22	720ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 14:35:40	644ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 22:03:05	567ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 19:03:08	903ms	2 NS 1 A 1 MX	🔒 Secure