btb2021.dk

📜 Historical scan 2026-09-01 07:01:32  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

btb2021.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 5 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.235.243.20 is hosted by Norlys Telco A/S (AS3308) in Denmark. The zone is DNSSEC-signed and validates, has no 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   45ms
NameserverIP addressesPTRASN / ISP
ns.dandomain.dk 185.25.141.3
2a02:2339:4006:109::dd		 ns.dandomain.dk
ns.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.dandomain.dk 2a02:2339:1:108::dd:dd
91.197.248.66		 ns2.dandomain.dk
ns2.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   47ms
IPTTLPTRASNISP / OrgCIDRCountryCity
85.235.243.20 3600s 20.0-127.243.235.85.in-addr.arpa
nyhedsbrev.odsgard.dk		 AS3308 Norlys Telco A/S 85.235.224.0/19 🇩🇰 Denmark Hørsholm

📧 MX Records#

📧
No MX records found

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover85.235.243.20
🔶 Autoconfig85.235.243.20

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-09 15:43:18
www85.235.243.20 (AS3308) (address records, no CNAME)
www vs bare domainSame network
btb2021.dk: 85.235.243.20 (AS3308)
www.btb2021.dk: 85.235.243.20 (AS3308)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

98ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026082101
Primary NS (MNAME)ns.dandomain.dk
Responsible (RNAME)hostmaster@dandomain.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-16 01:54:38
FieldValue
RegistrarDANDOMAIN A/S
Registered2020-11-05
Expires2026-11-30 (33d)

🔗 Same registrant#

86 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).

DomainRegistrar
aaretsboerneord.dkDANDOMAIN A/S
aaretsbyggeri.dkPunktum dk A/S (direct)
aaretsord.dkDANDOMAIN A/S
aaretsskoleord.dkDANDOMAIN A/S
aaretsuderum.dkDANDOMAIN A/S
aaretsungdomsord.dkDANDOMAIN A/S
aaretsungeord.dkDANDOMAIN A/S
albertslundnyt.dkDANDOMAIN A/S
ballerupnyt.dkDANDOMAIN A/S
ballerupweekend.dkDANDOMAIN A/S
bas.dkPunktum dk A/S (direct)
brondbynyt.dkDANDOMAIN A/S
brøndbynyt.dkDANDOMAIN A/S
brøndbyweekend.dkDANDOMAIN A/S
btb2022.dkDANDOMAIN A/S
btb2023.dkDANDOMAIN A/S
btb2024.dkDANDOMAIN A/S
btb2025.dkDANDOMAIN A/S
btb2026.dkDANDOMAIN A/S
btbren.dkDANDOMAIN A/S
byensboligforening.dkDANDOMAIN A/S
byensboligforeninger.dkPunktum dk A/S (direct)
byg-tv.dkPunktum dk A/S (direct)
byggeri.dkPunktum dk A/S (direct)
byggerietsjobportal.dkPunktum dk A/S (direct)
byggerietsnyheder.dkPunktum dk A/S (direct)
byggewatch.dkPunktum dk A/S (direct)
bygjob.dkPunktum dk A/S (direct)
bygtek.dkPunktum dk A/S (direct)
bygtv.dkPunktum dk A/S (direct)
bygwatch.dkPunktum dk A/S (direct)
cphweekend.dkDANDOMAIN A/S
crimecode.dkPunktum dk A/S (direct)
cybergames.dkPunktum dk A/S (direct)
fagfolk.dkPunktum dk A/S (direct)
foodm.dkPunktum dk A/S (direct)
foodmarkedet.dkPunktum dk A/S (direct)
glostruphandelsforening.dkSimply.com A/S
glostrupnyt.dkDANDOMAIN A/S
glostrupweekend.dkDANDOMAIN A/S
gonetwork.dkDANDOMAIN A/S
gotonetwork.dkDANDOMAIN A/S
hojetaastrupnyt.dkDANDOMAIN A/S
hr-regnskab.dkDANDOMAIN A/S
hrregnskab.dkDANDOMAIN A/S
hunvaerk.dkDANDOMAIN A/S
hvidovreweekend.dkDANDOMAIN A/S
hårdttræ.dkPunktum dk A/S (direct)
irum.dkPunktum dk A/S (direct)
ishojnyt.dkDANDOMAIN A/S
kogeweekend.dkDANDOMAIN A/S
køgeweekend.dkDANDOMAIN A/S
logistik-magasinet.dkPunktum dk A/S (direct)
ltl.dkPunktum dk A/S (direct)
magasinetgulv.dkPunktum dk A/S (direct)
maryann.dkPunktum dk A/S (direct)
mester-guiden.dkPunktum dk A/S (direct)
mester-svend.dkPunktum dk A/S (direct)
mesterogsvend.dkPunktum dk A/S (direct)
mestersvend.dkPunktum dk A/S (direct)
mywebshop.dkDANDOMAIN A/S
netvaerksdag.dkDANDOMAIN A/S
netvaerksdage.dkDANDOMAIN A/S
odsgard.dkPunktum dk A/S (direct)
packm.dkPunktum dk A/S (direct)
peterodsgard.dkPunktum dk A/S (direct)
rodovrenyt.dkDANDOMAIN A/S
sikkerhed.dkPunktum dk A/S (direct)
skole-magasin.dkPunktum dk A/S (direct)
skolemagasin.dkPunktum dk A/S (direct)
taastrupnyt.dkDANDOMAIN A/S
taastrupweekend.dkDANDOMAIN A/S
tømmerhandel.dkPunktum dk A/S (direct)
ue-medier.dkPunktum dk A/S (direct)
uemedia.dkPunktum dk A/S (direct)
uemedier.dkPunktum dk A/S (direct)
ugenserhverv.dkPunktum dk A/S (direct)
vallensbaeknyt.dkDANDOMAIN A/S
vallensbaekweekend.dkDANDOMAIN A/S
vallensbæknyt.dkDANDOMAIN A/S
vallensbækweekend.dkDANDOMAIN A/S
vestegnenskonferencecenter.dkDANDOMAIN A/S
værktøjstest.dkPunktum dk A/S (direct)
webshopupdate.dkDANDOMAIN A/S
åretsbyggeri.dkPunktum dk A/S (direct)
åretsbørneord.dkDANDOMAIN A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
45ms
A
47ms
MX
41ms
AAAA
36ms
TXT
176ms
CAA
39ms
HTTPS
41ms
TLSA
50ms
SOA
0ms
MTA-STS
55ms
DNSSEC
98ms
SRV
70ms
Total
562ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 11:48:08 402ms 2 NS 1 A 0 MX 🔒 Secure
2026-09-01 07:01:32 shown 562ms 2 NS 1 A 0 MX 🔒 Secure
2026-08-22 12:30:23 5162ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-26 21:09:34 479ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-23 13:52:46 617ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-23 10:42:59 1171ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-16 17:48:10 2354ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-16 17:45:15 1142ms 2 NS 1 A 0 MX 🔒 Secure
2026-06-16 17:30:20 413ms 2 NS 1 A 0 MX 🔒 Secure
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