gcsa.dk
Last scanned: 2026-07-01 23:25:39  ·  1856ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   57ms
NameserverIP addressesPTRASN / ISP
ns61.domaincontrol.com 2603:5:2153::20
97.74.101.32		 ns61.domaincontrol.com
ns61.domaincontrol.com		 AS44273 Host Europe GmbH
AS44273 Host Europe GmbH
ns62.domaincontrol.com 173.201.69.32
2603:5:2253::20		 ns62.domaincontrol.com
ns62.domaincontrol.com		 AS44273 Host Europe GmbH
AS44273 Host Europe GmbH
🌍 A Records1 records   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
103.169.142.0 3600s — AS209242 Cloudflare London, LLC 103.169.142.0/24 🇦🇺 Australia —
📧 MX Records2 records   63ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
20 3600s mailsec.protonmail.ch 176.119.200.129
185.205.70.129
185.70.42.129		 mailsec.protonmail.ch
mailsec.protonmail.ch
mailsec.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records3 records   271ms
TXT Record
canva-domain-verify=97b9febd-f517-408b-bfc9-d94aa0f15285
protonmail-verification=1d893357b23ec9a1fb491e018df5653ff5dd6c76
v=spf1 include:_spf.protonmail.ch ~all
✉️ SPF
PolicyRecord (gcsa.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch ~all
📨 DMARC
PolicyRecord (_dmarc.gcsa.dk)
p=quarantine v=DMARC1; p=quarantine
📬 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 / DANE4 records   365ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
🔐 DNSSEC116ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA63ms
FieldValue
Serial2025040203
Primary NS (MNAME)ns61.domaincontrol.com
Responsible (RNAME)dns@jomax.net
Refresh28800s
Retry7200s
Expire604800s
Minimum (neg-cache TTL)600s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
57ms
A
40ms
MX
63ms
AAAA
37ms
TXT
271ms
CAA
64ms
HTTPS
58ms
TLSA
365ms
SOA
63ms
MTA-STS
75ms
DNSSEC
116ms
SRV
82ms
Total
1856ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-07-01 23:25:39 1856ms 2 NS 1 A 2 MX 🔓 Insecure View
2026-06-17 09:43:15 867ms 2 NS 1 A 2 MX 🔓 Insecure View
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