gresco.dk
📜 Historical scan 2026-08-27 13:05:11  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers3 records   29ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
🌍 A Records1 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.20.205.68 3600s linux392.unoeuro.com AS48854 team.blue Denmark A/S 185.20.204.0/22 🇩🇰 Denmark —
📧 MX Records1 records   26ms
PriorityTTLMail ServerIP addressesPTRASN
1 600s smtp.google.com 142.250.147.26
142.250.147.27
142.251.9.26
142.251.9.27
2a00:1450:4025:c01::1a
2a00:1450:4025:c01::1b
2a00:1450:4025:c03::1a
2a00:1450:4025:c03::1b		 rd-in-f26.1e100.net
rd-in-f27.1e100.net
rc-in-f26.1e100.net
rc-in-f27.1e100.net
rd-in-f26.1e100.net
rd-in-f27.1e100.net
rc-in-f26.1e100.net
rc-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
📧 Autodiscover / Autoconfig
ServiceCNAME / IP
🔷 Autodiscover185.20.205.68
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
🔌 SRV Records1 records   37ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
📝 TXT Records2 records   83ms
TXT Record
google-site-verification=RNtHekR8NTXvmBF9NB3L50zJHmodYhdS9lMDQCfem18
v=spf1 include:spf.simply.com -all
✉️ SPF
PolicyRecord (gresco.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all
📨 DMARC
PolicyRecord (_dmarc.gresco.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC104ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
🏷️ SOA0ms
FieldValue
Serial2026082707
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
29ms
A
30ms
MX
26ms
AAAA
26ms
TXT
83ms
CAA
27ms
HTTPS
29ms
TLSA
77ms
SOA
0ms
MTA-STS
39ms
DNSSEC
104ms
SRV
37ms
Total
531ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 18:09:15 695ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-27 13:05:11 531ms 3 NS 1 A 1 MX 🔒 Secure View
2026-08-25 08:45:06 743ms 3 NS 1 A 1 MX 🔒 Secure View
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