bioco2.dk

📜 Historical scan 2026-06-16 14:37:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bioco2.dk is a .dk domain served by 2 nameservers (ns01.hostnet.nl, ns02.hostnet.nl). It was registered on 28 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.184.0.200 is hosted by One.com A/S (AS51468) in Denmark. The zone is not DNSSEC-signed, publishes a 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.hostnet.nl	—	—	—
ns02.hostnet.nl	—	—	—

🌍 A Records#

1 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.184.0.200	—	balancing.hostnet.nl	AS51468	One.com A/S	91.184.0.0/19	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

1 records 27ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2268:1:0:f816:3eff:fe7b:63c6	—	—	AS197902	Hostnet B.V.	2a02:2268:0:0:0:0:0:0/32	🇳🇱 The Netherlands	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 102ms

TXT Record
v=spf1 a mx include:_spf.hostnet.nl -all

✉️ SPF#

Policy	Record (bioco2.dk)
-all (hard fail)	v=spf1 a mx include:_spf.hostnet.nl -all

📨 DMARC#

Policy	Record (_dmarc.bioco2.dk)
p=reject	v=DMARC1; p=reject

📬 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 2026-10-12 17:48:20

www CNAME	bioco2.dk (all on bioco2.dk) → 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902)
www vs bare domain	Same network bioco2.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902) www.bioco2.dk: 91.184.0.200 2a02:2268:1:0:f816:3eff:fe7b:63c6 (AS51468 AS197902)
Wildcard	Yes: any name under the zone resolves

🔎 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#

105ms

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

🏷️ SOA#

25ms

Field	Value
Serial	2026011001
Primary NS (MNAME)	ns01.hostnet.nl
Responsible (RNAME)	hostmaster@hostnet.nl
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-05 15:03:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-01-28
Expires	2027-01-31 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

27ms

28ms

AAAA

27ms

TXT

102ms

CAA

27ms

HTTPS

29ms

TLSA

55ms

SOA

25ms

MTA-STS

41ms

DNSSEC

105ms

SRV

0ms

Total

324ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 05:27:33	5941ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-08 06:37:30	537ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-08 20:12:47	17559ms	2 NS 1 A 0 MX	🔓 Insecure
2026-07-10 05:15:38	2473ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-26 06:34:13	2611ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-25 09:14:58	941ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-23 01:43:52	1155ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 22:04:54	1101ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 14:37:07 shown	324ms	2 NS 1 A 0 MX	🔓 Insecure