teorionline.dk
Last scanned: 2026-09-02 15:26:50  ·  1436ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   68ms
NameserverIP addressesPTRASN / ISP
ns1.vercel-dns.com 198.51.44.13
2620:4d:4000:6259:7:13:0:1		 dns1.p13.nsone.net
dns1.p13.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
ns2.vercel-dns.com 198.51.45.13
2a00:edc0:6259:7:13::2		 dns2.p13.nsone.net
dns2.p13.nsone.net		 AS62597 NSONE Inc
AS62597 NSONE Inc
🌍 A Records2 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
216.198.79.1 1800s — AS16509 Amazon.com, Inc. 216.198.79.0/24 🇺🇸 United States —
216.198.79.65 1800s — AS16509 Amazon.com, Inc. 216.198.79.0/24 🇺🇸 United States —
📧 MX Records1 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s teorionline.dk.mx.one.com 104.37.34.230
104.37.34.231
104.37.34.232
104.37.34.233		 mx1.pub.mailpod11-cph3.one.com
mx2.pub.mailpod11-cph3.one.com
mx3.pub.mailpod11-cph3.one.com
mx4.pub.mailpod11-cph3.one.com		 AS51468 One.com A/S
AS51468 One.com A/S
AS51468 One.com A/S
AS51468 One.com A/S
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover64.29.17.65
🔶 Autoconfig216.198.79.65
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   343ms
TXT Record
google-site-verification=DdZvs4-xnmvmKCwHPnnyTLewNa7XHo32OKLBrcq0-q4
✉️ 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 Records3 records   74ms
FlagsTagValue
0 issue letsencrypt.org
0 issue pki.goog
0 issue sectigo.com
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC95ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial1741111953
Primary NS (MNAME)ns1.vercel-dns.com
Responsible (RNAME)hostmaster@nsone.net
Refresh43200s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
68ms
A
50ms
MX
51ms
AAAA
64ms
TXT
343ms
CAA
74ms
HTTPS
68ms
TLSA
236ms
SOA
0ms
MTA-STS
92ms
DNSSEC
95ms
SRV
113ms
Total
1436ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-02 15:26:50 1436ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-29 00:20:37 945ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-20 15:54:49 3000ms 2 NS 2 A 1 MX 🔓 Insecure View
2026-06-18 04:36:42 1176ms 2 NS 2 A 1 MX 🔓 Insecure View
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