do-best.dk

📜 Historical scan 2026-09-13 00:55:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

do-best.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 May 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.71.250.156 is hosted by Akamai Connected Cloud (AS63949) in United Kingdom. Mail is handled by do-best.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 2038ms

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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
212.71.250.156	600s	do-best.dk	AS63949	Akamai Connected Cloud	212.71.248.0/21	🇬🇧 United Kingdom	London

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	do-best.dk	212.71.250.156	do-best.dk	AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	212.71.250.156
🔶 Autoconfig	212.71.250.156

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 2181ms

TXT Record
v=spf1 mx a ptr ip4:212.71.250.156 ip6:2a01:7e00:0:0:f03c:91ff:fedb:ca97

✉️ SPF#

Policy	Record (do-best.dk)
no all — incomplete SPF	v=spf1 mx a ptr ip4:212.71.250.156 ip6:2a01:7e00:0:0:f03c:91ff:fedb:ca97

📨 DMARC#

Policy	Record (_dmarc.do-best.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; rf=afrf; pct=100; ri=86400

📬 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 2026-10-10 15:58:26

www	212.71.250.156 (AS63949) (address records, no CNAME)
www vs bare domain	Same network do-best.dk: 212.71.250.156 (AS63949) www.do-best.dk: 212.71.250.156 (AS63949)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: none

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)
warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090901
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 2026-10-10 23:38:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-05-20
Expires	2027-05-31 (217d)

📋 WHOIS#

⏱️ Lookup Timing#

2038ms

52ms

42ms

AAAA

37ms

TXT

2181ms

CAA

2040ms

HTTPS

2042ms

TLSA

67ms

SOA

0ms

MTA-STS

67ms

DNSSEC

80ms

SRV

2052ms

Total

2565ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 15:58:26	796ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 07:53:54	535ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 00:55:30 shown	2565ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 08:58:02	951ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 20:45:28	683ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 02:12:55	1241ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 13:10:36	697ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 23:51:40	2515ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 00:53:06	1069ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 04:16:11	1593ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:05:42	11634ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:03:04	398ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:00:03	889ms	2 NS 1 A 1 MX	🔒 Secure