robots4green.dk
📜 Historical scan 2026-07-13 04:16:59  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   33ms
NameserverIP addressesPTRASN / ISP
ns1.sdu.dk 130.225.155.136 ns1.sdu.dk AS1835 IDDQD-AS
ns2.sdu.dk 130.225.155.148 ns2.sdu.dk AS1835 IDDQD-AS
ns3.sdu.dk 193.163.227.4 ns3.sdu.dk AS44328 Region Syddanmark
🌍 A Records1 records   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
130.225.156.155 28800s — AS1835 IDDQD-AS 130.225.0.0/16 🇩🇰 Denmark —
📧 MX Records1 records   33ms
PriorityTTLMail ServerIP addressesPTRASN
0 28800s .  Null MX — domain accepts no email (RFC 7505)
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   155ms
TXT Record
v=spf1 include:_spf.sdu.dk -all
✉️ SPF
PolicyRecord (robots4green.dk)
-all (hard fail) v=spf1 include:_spf.sdu.dk -all
📨 DMARC
PolicyRecord (_dmarc.robots4green.dk)
p=reject v=DMARC1; p=reject; sp=reject; ruf=mailto:dmarc.reports@sdu.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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC2050ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial287
Primary NS (MNAME)ns1.sdu.dk
Responsible (RNAME)dns@sdu.dk
Refresh10800s
Retry3600s
Expire2419200s
Minimum (neg-cache TTL)900s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
33ms
A
37ms
MX
33ms
AAAA
32ms
TXT
155ms
CAA
33ms
HTTPS
4031ms
TLSA
92ms
SOA
0ms
MTA-STS
45ms
DNSSEC
2050ms
SRV
82ms
Total
4564ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 01:33:01 16359ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-23 23:39:51 17358ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-22 23:05:01 8990ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-18 22:42:52 10289ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-15 11:35:39 9592ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-10 12:23:16 6601ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-09 06:10:26 5750ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-30 23:42:47 10540ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-27 14:00:06 4594ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-24 13:00:28 3577ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-22 04:51:36 6978ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-20 04:52:45 3598ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-17 03:18:07 3634ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-15 10:49:50 4483ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-13 04:16:59 4564ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-11 16:01:20 4487ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-08 13:14:17 16859ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-06 11:55:04 4502ms 3 NS 1 A 1 MX 🔒 Secure View
2026-07-03 14:05:30 4411ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-30 22:27:59 4329ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-29 23:57:55 4402ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-24 03:08:29 2662ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-20 20:57:04 2348ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-20 07:31:29 2553ms 3 NS 1 A 1 MX 🔒 Secure View
2026-06-17 14:35:14 5065ms 3 NS 1 A 0 MX 🔒 Secure View
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