flex4b.dk

📜 Historical scan 2026-06-20 03:23:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

flex4b.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 28 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.163.137.202 is hosted by WIIT AG (AS24961) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, 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 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.163.137.202	3600s	—	AS24961	WIIT AG	89.163.128.0/17	🇩🇪 Germany	—

📧 MX Records#

5 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a 64.233.164.27	lm-in-x1a.1e100.net lm-in-f26.1e100.net lf-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4003:c26::1b	lcdels-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	89.163.137.202
🔶 Autoconfig	89.163.137.202

🔷 AAAA Records (IPv6)#

1 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:4ba0:92c1:49::2	3600s	—	AS24961	WIIT AG	2001:4ba0:0:0:0:0:0:0/31	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1323ms

TXT Record
v=spf1 a mx ip4:89.163.137.202 ip6:2001:4ba0:92c1:49::2 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (flex4b.dk)
~all (soft fail)	v=spf1 a mx ip4:89.163.137.202 ip6:2001:4ba0:92c1:49::2 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 2026-10-08 00:24:10

www	89.163.137.202 2001:4ba0:92c1:49::2 (AS24961) (address records, no CNAME)
www vs bare domain	Same network flex4b.dk: 89.163.137.202 2001:4ba0:92c1:49::2 (AS24961) www.flex4b.dk: 89.163.137.202 2001:4ba0:92c1:49::2 (AS24961)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

123ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2021033100
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-19 07:23:02

Field	Value
Registrar	CURANET A/S
Registered	2015-11-28
Expires	2026-11-30 (42d)

🔗 Same registrant#

6 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
billig-webshop.dk	CURANET A/S
everything4web.dk	CURANET A/S
heste-og-andre-dyr.dk	CURANET A/S
mad-og-drikke.dk	CURANET A/S
planteforum.dk	CURANET A/S
tech-shop.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

49ms

52ms

35ms

AAAA

59ms

TXT

1323ms

CAA

52ms

HTTPS

44ms

TLSA

1199ms

SOA

42ms

MTA-STS

126ms

DNSSEC

123ms

SRV

376ms

Total

2807ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-03 06:57:01	737ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-20 03:23:34 shown	2807ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 09:49:38	741ms	2 NS 1 A 5 MX	🔒 Secure