college360.dk

📜 Historical scan 2026-06-16 21:45:22  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

college360.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 24 April 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.251.4.118 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by college360-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#

3 records   58ms
NameserverIP addressesPTRASN / ISP
ns.efif.dk — — —
ns2.efif.dk — — —
ns3.efif.dk — — —

🌍 A Records#

1 records   55ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.251.4.118 — vm0845.enterprisecloud.nu AS48854 team.blue Denmark A/S 178.251.0.0/21 🇩🇰 Denmark —

📧 MX Records#

1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 — college360-dk.mail.protection.outlook.com 52.101.68.29
52.101.73.24
52.101.73.28
52.101.73.30		 mail-dbapr03cu00105.inbound.protection.outlook.com
mail-as8pr05cu00300.inbound.protection.outlook.com
mail-am7pr05cu00204.inbound.protection.outlook.com
mail-am7pr05cu00306.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records   114ms
TXT Record
bqut4q8bg25ja715kbmnko71dd
MS=ms28050298
v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spf.mcb.dk include:sendgrid.net ip4:195.74.34.66 ip4:193.201.39.122 -all

✉️ SPF#

PolicyRecord (college360.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spf.mcb.dk include:sendgrid.net ip4:195.74.34.66 ip4:193.201.39.122 -all

📨 DMARC#

PolicyRecord (_dmarc.college360.dk)
p=reject v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@college360.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 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 2026-10-21 11:15:39
www178.251.4.118 (AS48854) (address records, no CNAME)
www vs bare domainSame network
college360.dk: 178.251.4.118 (AS48854)
www.college360.dk: 178.251.4.118 (AS48854)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
selector2 selector2-college360-dk._domainkey.efif.onmicrosoft.com RSA · ~1024 bit below 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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

59ms
FieldValue
Serial2016011521
Primary NS (MNAME)ns.efif.dk
Responsible (RNAME)dns-zc@efif.dk
Refresh14400s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-21 11:26:04
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2017-04-24
Expires2027-04-30 (189d)

🔗 Same registrant#

13 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
c360.dkPunktum dk A/S (direct)
handelsskolen-silkeborg.dkPunktum dk A/S (direct)
handelsskolensilkeborg.dkPunktum dk A/S (direct)
hssilke.dkPunktum dk A/S (direct)
hssilkeborg.dkPunktum dk A/S (direct)
hsskyen.dkPunktum dk A/S (direct)
kursuscenteret.dkPunktum dk A/S (direct)
learnsilkeborg.dkPunktum dk A/S (direct)
piu-sekretariatet.dkPunktum dk A/S (direct)
piu.dkPunktum dk A/S (direct)
silkeborg-handelsskole.dkPunktum dk A/S (direct)
silkeborghs.dkPunktum dk A/S (direct)
silkehs.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
58ms
A
55ms
MX
47ms
AAAA
55ms
TXT
114ms
CAA
62ms
HTTPS
44ms
TLSA
567ms
SOA
59ms
MTA-STS
77ms
DNSSEC
124ms
SRV
0ms
Total
1113ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 11:15:39 744ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-20 06:05:21 2437ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-19 05:28:35 4464ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-18 04:15:49 3420ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-17 04:10:02 1567ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-16 03:58:53 3431ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-14 02:19:45 1224ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-13 01:50:31 4089ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-11 23:55:46 1684ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-10 22:08:32 1169ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-09 21:00:04 1356ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-08 11:33:05 1715ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-07 11:22:32 2784ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-05 07:03:21 1161ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-03 06:40:20 3108ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-02 06:35:58 3440ms 3 NS 1 A 1 MX 🔒 Secure
2026-10-01 06:32:05 4132ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-30 06:23:53 1577ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-29 06:14:17 18123ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-27 05:31:38 18066ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-25 04:54:23 1136ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-24 04:20:39 18516ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-22 17:13:58 18093ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-19 06:16:13 6893ms 3 NS 1 A 1 MX 🔒 Secure
2026-09-14 23:03:51 9558ms 3 NS 1 A 1 MX 🔒 Secure
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