3rcenter.dk
Last scanned: 2026-08-31 17:16:55  ·  17965ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   206ms
NameserverIP addressesPTRASN / ISP
ns6.sitnet.dk 107.162.234.197
2604:e180:1071::3:1		 —
—		 AS55002 F5, Inc.
AS55002 F5, Inc.
ns7.sitnet.dk 107.162.176.221
2604:e180:1071::ffff:6ba2:b0dd		 —
—		 AS55002 F5, Inc.
AS55002 F5, Inc.
🌍 A Records1 records   214ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.72.21.198 300s 3rcenter.t3hot.dk AS3342 Cibicom A/S 178.72.16.0/21 🇩🇰 Denmark —
📧 MX Records8 records   70ms
PriorityTTLMail ServerIP addressesPTRASN
10 600s mx01.statens-it.dk 194.182.109.217 mx01.statens-it.dk AS58282 Statens IT
10 600s mx02.statens-it.dk 194.182.109.218 mx02.statens-it.dk AS58282 Statens IT
10 600s mx03.statens-it.dk 194.182.109.219 mx03.statens-it.dk AS58282 Statens IT
10 600s mx04.statens-it.dk 194.182.109.220 mx04.statens-it.dk AS58282 Statens IT
10 600s mx05.statens-it.dk 194.182.109.221 mx05.statens-it.dk AS58282 Statens IT
10 600s mx06.statens-it.dk 194.182.109.222 mx06.statens-it.dk AS58282 Statens IT
10 600s mx07.statens-it.dk 194.182.109.223 mx07.statens-it.dk AS58282 Statens IT
10 600s mx08.statens-it.dk 194.182.109.224 mx08.statens-it.dk AS58282 Statens IT
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records5 records   510ms
TXT Record
I2As3ozvbNwPv3jFspARXy2bWXqyuMiEZePQ8VjAICeDJzNuLDJfwuWfYoOQQwas5AN0idkHRRt1cq+/Kq4ABQ==
MS=ms17076358
MS=ms21229115
Unq++jlaLTIxRhD5D64jv3tkcir1Rgl1eEe2mZQtu/iJ9OrR9snSOlxmpCEYACeVCD27gkhyRFbFLTVO0LE43w==
v=spf1 ip4:194.182.109.192/26 ip4:188.64.157.0/28 ip4:77.66.10.196 ip4:178.72.21.198 include:spf.protection.outlook.com ~all
✉️ SPF
PolicyRecord (3rcenter.dk)
~all (soft fail) v=spf1 ip4:194.182.109.192/26 ip4:188.64.157.0/28 ip4:77.66.10.196 ip4:178.72.21.198 include:spf.protection.outlook.com ~all
📨 DMARC
PolicyRecord (_dmarc.3rcenter.dk)
p=reject v=DMARC1; p=reject; sp=reject; rua=mailto:tcod1eh2@ag.eu.dmarcadvisor.com;
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
StatusReport address (rua)
✓ Enabled mailto:tcod1eh2@tls.eu.dmarcadvisor.com
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE16 records   349ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx01.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx01.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx02.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx02.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx03.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx03.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx04.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx04.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx05.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx05.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx06.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx06.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx07.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
SMTP _25._tcp.mx07.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx08.statens-it.dk DANE-EE · Full cert · SHA-512 8A12C2B7C0B5B6A9B6026C875909858F…
SMTP _25._tcp.mx08.statens-it.dk DANE-EE · Full cert · SHA-512 1DFC9477DAE259CF5EC3C684DAAEEA6C…
🔐 DNSSEC271ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial16710
Primary NS (MNAME)ns6.sitnet.dk
Responsible (RNAME)hostmaster@statens-it.dk
Refresh10800s
Retry1080s
Expire2419200s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
206ms
A
214ms
MX
70ms
AAAA
199ms
TXT
510ms
CAA
206ms
HTTPS
66ms
TLSA
349ms
SOA
0ms
MTA-STS
128ms
DNSSEC
271ms
SRV
323ms
Total
17965ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-31 17:16:55 17965ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-29 17:45:42 17568ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-28 15:53:21 18209ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-27 15:19:20 17617ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-26 15:08:51 9719ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-24 15:44:38 21091ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-23 10:15:15 2987ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-22 09:49:12 10711ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-21 09:30:20 13233ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-20 09:04:24 9107ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-19 07:43:05 4560ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-18 07:31:53 8295ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-17 04:35:54 7635ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-16 01:22:00 4507ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-14 09:32:40 18542ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-13 04:48:23 26208ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-11 07:39:22 10092ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-10 00:31:02 26704ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-08 06:14:48 7585ms 2 NS 1 A 8 MX 🔒 Secure View
2026-08-06 10:20:32 2380ms 2 NS 1 A 8 MX 🔒 Secure View
2026-07-29 13:15:02 7958ms 2 NS 1 A 8 MX 🔒 Secure View
2026-07-27 13:39:16 17941ms 2 NS 1 A 8 MX 🔒 Secure View
2026-07-26 13:24:21 10357ms 2 NS 1 A 8 MX 🔒 Secure View
2026-07-25 12:54:36 11433ms 2 NS 1 A 8 MX 🔒 Secure View
2026-07-24 12:46:18 26422ms 2 NS 1 A 8 MX 🔒 Secure View
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