dbuunderviser.dk

📜 Historical scan 2026-09-30 01:43:59  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dbuunderviser.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 25 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.214 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dbuunderviser-dk.mail.protection.outlook.com. 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   29ms
NameserverIP addressesPTRASN / ISP
ns.scannet2.dk 185.25.141.9
2a02:2339:4006:10d::4171:4171		 ns1.scannet.dk
ns1.scannet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.scannet2.dk 2a02:2339:1:112:0:5:1:b11
91.197.248.72		 ns2.scannet.dk
ns2.scannet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   32ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.40.214 3600s splash.zitcom.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —

📧 MX Records#

1 records   32ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s dbuunderviser-dk.mail.protection.outlook.com 2a01:111:f403:ca04::10
2a01:111:f403:ca04::b
2a01:111:f403:ca04::e
2a01:111:f403:ca3c::6
52.101.103.137
52.101.68.39
52.101.73.123
52.101.73.145		 mail-dbapr03cu00100.inbound.protection.outlook.com
mail-dbbpr03cu00103.inbound.protection.outlook.com
mail-db8pr02cu00106.inbound.protection.outlook.com
mail-zrxpr04cu00106.inbound.protection.outlook.com
mail-miypr02cu00101.inbound.protection.outlook.com
mail-db7pr03cu00607.inbound.protection.outlook.com
mail-am6pr02cu00203.inbound.protection.outlook.com
mail-am6pr02cu00301.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.154.136
🔶 Autoconfig185.21.40.214

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   111ms
TXT Record
MS=ms55195487
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (dbuunderviser.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

PolicyRecord (_dmarc.dbuunderviser.dk)
p=reject v=DMARC1; p=reject; pct=100;rua=mailto:postmaster@dbuunderviser.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 2026-10-13 04:53:16
www185.21.40.214 (AS48854) (address records, no CNAME)
www vs bare domainSame network
dbuunderviser.dk: 185.21.40.214 (AS48854)
www.dbuunderviser.dk: 185.21.40.214 (AS48854)
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

✍️ DKIM keys#

2 found
SelectorCNAMEKey
selector1 selector1-dbuunderviser-dk._domainkey.dbuunderviser.onmicrosoft.com RSA · ~2048 bit
selector2 selector2-dbuunderviser-dk._domainkey.dbuunderviser.onmicrosoft.com RSA · ~2048 bit

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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

53ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2021080608
Primary NS (MNAME)ns.scannet2.dk
Responsible (RNAME)hostmaster@scannet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-20 02:45:08
FieldValue
RegistrarA/S SCANNET
Registered2021-03-25
Expires2027-03-31 (155d)

🔗 Same registrant#

68 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
a-liga.dkA/S SCANNET
alka-superliga.dkA/S SCANNET
alka-superligaen.dkA/S SCANNET
alkasuperliga.dkA/S SCANNET
alkasuperligaen.dkA/S SCANNET
bet25-liga.dkA/S SCANNET
bet25-ligaen.dkA/S SCANNET
bet25liga.dkA/S SCANNET
bet25ligaen.dkA/S SCANNET
copenhageneuro2020.dkA/S SCANNET
danskefodboldklubber.dkA/S SCANNET
danskfodbold.dkA/S SCANNET
dbu-hdk.dkA/S SCANNET
dbu-klubhuset.dkA/S SCANNET
dbu-net.dkA/S SCANNET
dbu.dkA/S SCANNET
dbubkr.dkA/S SCANNET
dbuboernefodbold.dkA/S SCANNET
dbubornholm.dkA/S SCANNET
dbucf.dkA/S SCANNET
dbufodboldcamp.dkA/S SCANNET
dbufodboldskole.dkA/S SCANNET
dbufyn.dkA/S SCANNET
dbuittest.dkA/S SCANNET
dbukobenhavn.dkA/S SCANNET
dbukøbenhavn.dkA/S SCANNET
dbulandsholdsklub.dkA/S SCANNET
dbulandsholdsklubben.dkA/S SCANNET
dbuliga.dkA/S SCANNET
dbulollandfalster.dkA/S SCANNET
dbumail.dkA/S SCANNET
dbunet.dkA/S SCANNET
dbupigeraketten.dkA/S SCANNET
dbupokalen.dkA/S SCANNET
dbusfodboldskole.dkA/S SCANNET
dbusjaelland.dkA/S SCANNET
dbusjælland.dkA/S SCANNET
dbuslandsholdklub.dkA/S SCANNET
dbuslandsholdsklub.dkA/S SCANNET
dbuslandsholdsklubben.dkA/S SCANNET
dbusmikrofodboldskole.dkA/S SCANNET
dbuspigeraket.dkA/S SCANNET
dbutv.dkA/S SCANNET
dfa18.dkA/S SCANNET
endelafeuro2020.dkA/S SCANNET
fodboldenslotteri.dkA/S SCANNET
fodboldlotteriet.dkA/S SCANNET
futsalligaen.dkDANDOMAIN A/S
gkldivisionsforeningen.dkA/S SCANNET
heledanmarksklubhus.dkA/S SCANNET
info-dbubredde.dkA/S SCANNET
kanalsport-division.dkA/S SCANNET
kanalsport-divisionen.dkA/S SCANNET
kanalsportdivision.dkA/S SCANNET
kanalsportdivisionen.dkA/S SCANNET
koservice.dkA/S SCANNET
koservicetest.dkA/S SCANNET
kvindeliga.dkA/S SCANNET
kvindeligaen.dkA/S SCANNET
landsholdsklub.dkA/S SCANNET
landsholdsshoppen.dkPunktum dk A/S (direct)
mitdbu.dkA/S SCANNET
mitfodbold.dkA/S SCANNET
pladstilallejulekalenderen.dkA/S SCANNET
playfulperformance.dkA/S SCANNET
skolepokalen.dkA/S SCANNET
superligaen-as.dkA/S SCANNET
thekangarooligans.dkA/S SCANNET
📋 WHOIS#

⏱️ Lookup Timing#

NS
29ms
A
32ms
MX
32ms
AAAA
30ms
TXT
111ms
CAA
49ms
HTTPS
41ms
TLSA
596ms
SOA
0ms
MTA-STS
53ms
DNSSEC
53ms
SRV
51ms
Total
968ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 03:21:43 1162ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-30 01:43:59 shown 968ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-27 12:36:07 618ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-28 05:53:07 1106ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-25 12:31:09 1069ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 01:15:15 929ms 2 NS 1 A 1 MX 🔒 Secure
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