belt.dk

📜 Historical scan 2026-09-18 22:38:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

belt.dk is a .dk domain served by 3 nameservers (mimer.deic.dk, ns-soa.darenet.dk, orion.i2.dk). It was registered on 22 February 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.53 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.belt.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#

3 records 118ms

Nameserver	IP addresses	PTR	ASN / ISP
mimer.deic.dk	2001:87f:ff27:65::66 95.128.27.66	mimer.deic.dk mimer.deic.dk	AS198455 Danmarks Tekniske Universitet AS198455 Danmarks Tekniske Universitet
ns-soa.darenet.dk	130.226.179.50 2001:878:0:e000:82:e2:b3:32	ns-soa.darenet.dk ns-soa.darenet.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
orion.i2.dk	78.153.182.90	orion.i2.dk	AS31027 GlobalConnect A/S

🌍 A Records#

1 records 121ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.53	600s	vm1188.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 125ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.belt.dk	185.21.40.53	vm1188.enterprisecloud.nu	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 291ms

TXT Record
SOA=1772666296
v=spf1 ip4:185.21.40.53 -all

✉️ SPF#

Policy	Record (belt.dk)
-all (hard fail)	v=spf1 ip4:185.21.40.53 -all

📨 DMARC#

Policy	Record (_dmarc.belt.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; fo=1; ri=3600; aspf=s; rua=mailto:dmarc.rua@ucl.dk; ruf=mailto:dmarc.ruf@ucl.dk;

📬 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 2026-10-23 18:35:10

www	185.21.40.53 (AS48854) (address records, no CNAME)
www vs bare domain	Same network belt.dk: 185.21.40.53 (AS48854) www.belt.dk: 185.21.40.53 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

6 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	—	Revoked (empty key)
s2	—	Revoked (empty key)

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.belt.dk	dw5Fzz4LaJjSywnyaE1FUC1DLDCma58TvTzy3ONO8Vk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

209ms

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

🏷️ SOA#

0ms

Field	Value
Serial	1789734026
Primary NS (MNAME)	mimer.deic.dk
Responsible (RNAME)	dns@support.i2.dk
Refresh	16384s
Retry	2048s
Expire	2097152s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-19 08:09:40

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-02-22
Expires	2027-03-31 (157d)

🔗 Same registrant#

50 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
2x44.dk	Punktum dk A/S (direct)
avg.dk	Punktum dk A/S (direct)
berlinhistorie.dk	Punktum dk A/S (direct)
bett.dk	Punktum dk A/S (direct)
bygovenpaa.dk	Punktum dk A/S (direct)
bygovenpå.dk	Punktum dk A/S (direct)
cfulink.dk	Punktum dk A/S (direct)
demonstrationsskoler.dk	Punktum dk A/S (direct)
digitalelaeremidler.dk	Punktum dk A/S (direct)
dkgl.dk	Punktum dk A/S (direct)
eal.dk	Punktum dk A/S (direct)
finanstilmelding.dk	Punktum dk A/S (direct)
fusionsnyt.dk	Punktum dk A/S (direct)
historielab.dk	Punktum dk A/S (direct)
innoevent-odense.dk	Punktum dk A/S (direct)
innoevent.dk	Punktum dk A/S (direct)
kidm.dk	Punktum dk A/S (direct)
konference-paedagoguddannelsen.dk	Punktum dk A/S (direct)
konference-pædagoguddannelsen.dk	Punktum dk A/S (direct)
kunstterapiuddannelsen.dk	Punktum dk A/S (direct)
kurs21nord.dk	Punktum dk A/S (direct)
laeremiddel.dk	Punktum dk A/S (direct)
laeremiddeljulekalender.dk	Punktum dk A/S (direct)
laeremidler.dk	Punktum dk A/S (direct)
livsduelighed-nordfyn.dk	Punktum dk A/S (direct)
læremiddel.dk	Punktum dk A/S (direct)
læremiddeljulekalender.dk	Punktum dk A/S (direct)
mangfoldigelæringsmiljøer.dk	Punktum dk A/S (direct)
mflm.dk	Punktum dk A/S (direct)
mitucl.dk	Punktum dk A/S (direct)
myucl.dk	Punktum dk A/S (direct)
onlinesammen.dk	Punktum dk A/S (direct)
phpraxis.dk	Punktum dk A/S (direct)
rekvirering.dk	Punktum dk A/S (direct)
rigetinord.dk	Punktum dk A/S (direct)
robotfyn.dk	Punktum dk A/S (direct)
science-platform.dk	Punktum dk A/S (direct)
skolenihaven.dk	Punktum dk A/S (direct)
styrkmaddannelse.dk	Punktum dk A/S (direct)
tegnpaalaering.dk	Punktum dk A/S (direct)
tekforstaa.dk	Punktum dk A/S (direct)
ucl-micro.dk	Punktum dk A/S (direct)
ucl-playfullearning.dk	Punktum dk A/S (direct)
ucl.dk	Punktum dk A/S (direct)
uclmicro.dk	Punktum dk A/S (direct)
uclshoppen.dk	Punktum dk A/S (direct)
ucsamtalebooking.dk	Punktum dk A/S (direct)
udviklingscenterfordemens.dk	Punktum dk A/S (direct)
videremedplf.dk	Punktum dk A/S (direct)
vokseniuddannelse.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

118ms

121ms

125ms

AAAA

146ms

TXT

291ms

CAA

110ms

HTTPS

117ms

TLSA

88ms

SOA

0ms

MTA-STS

148ms

DNSSEC

209ms

SRV

133ms

Total

732ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 18:35:10	563ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-22 15:16:41	568ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-21 10:53:04	567ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-20 08:15:52	1033ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-19 07:55:49	1218ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-18 06:50:48	614ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-18 06:42:24	409ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-17 05:30:51	954ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-16 04:57:30	633ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-15 03:55:32	660ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 01:10:05	428ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-13 00:51:06	2237ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-11 21:30:42	524ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 20:13:20	703ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 16:56:55	2032ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 14:32:43	2947ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 14:24:49	1247ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-06 13:40:36	1542ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-05 13:11:15	1381ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 12:51:23	1657ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 12:44:20	602ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 12:43:50	793ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 12:41:46	1622ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 12:37:22	572ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 12:35:17	1704ms	3 NS 1 A 1 MX	🔒 Secure