mail.optimaopen.be - robtex.com

mail.optimaopen.be

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:b671πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3036::6815:3bbbπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.59.187Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.182.113πŸ‡ΊπŸ‡Έ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.59.187, 172.67.182.113
IPv6 hints2606:4700:3035::ac43:b671, 2606:4700:3036::6815:3bbb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com

optimaopen.be

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:b671πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3036::6815:3bbbπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.59.187Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.182.113πŸ‡ΊπŸ‡Έ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NStani.ns.cloudflare.com ⭐
NSzeus.ns.cloudflare.com
MX_dc-mx.0994ef827386.optimaopen.be ⭐
TXTv=spf1 a mx ip4:185.104.29.164 ip6:2a06:2ec0:1:0:0:0:0:165 include:filter-out...
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.59.187, 172.67.182.113
IPv6 hints2606:4700:3035::ac43:b671, 2606:4700:3036::6815:3bbb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com
SOAtani.ns.cloudflare.comdns@cloudflare.com serial=2400183971

Previously MX for

Same first word

Similar names

DNS History

6 records (4 active, 2 former)

201820192020202120222023202420252026A104.21.59.187172.67.182.1132606:4700:3035::ac43:b6712606:4700:3036::6815:3bbb185.104.29.602a06:2ec0:1::107
●A104.21.59.1872026-02-15 β†’ 2026-05-14 Β· 3 obs
β—‹ 2017-06-08 14:33:20
● 2026-02-15 14:44:38
● 2026-05-14 17:15:34
●A172.67.182.1132026-02-15 β†’ 2026-05-14 Β· 3 obs
β—‹ 2017-06-08 14:33:20
● 2026-02-15 14:44:38
● 2026-05-14 17:15:34
β—‹A185.104.29.602017-06-08 β†’ 2017-06-08 Β· 3 obs
● 2017-06-08 14:33:20
β—‹ 2026-02-15 14:44:38
β—‹ 2026-05-14 17:15:34
●A2606:4700:3035::ac43:b6712026-02-15 β†’ 2026-05-14 Β· 3 obs
β—‹ 2017-06-08 14:33:20
● 2026-02-15 14:44:38
● 2026-05-14 17:15:34
●A2606:4700:3036::6815:3bbb2026-02-15 β†’ 2026-05-14 Β· 3 obs
β—‹ 2017-06-08 14:33:20
● 2026-02-15 14:44:38
● 2026-05-14 17:15:34
β—‹A2a06:2ec0:1::1072017-06-08 β†’ 2017-06-08 Β· 3 obs
● 2017-06-08 14:33:20
β—‹ 2026-02-15 14:44:38
β—‹ 2026-05-14 17:15:34

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
bed.nsset.be, b.nsset.be, z.nsset.be, c.nsset.be...-
optimaopen.betani.ns.cloudflare.com, zeus.ns.cloudflare.com-

βœ… Authoritative Response

Server:172.64.33.249

NS records: tani.ns.cloudflare.com, zeus.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimaopen.be (unsigned zone)

⏱️ Timing

Total: 632ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.182.113, 104.21.59.187
AAAA22606:4700:3036::6815:3bbb, 2606:4700:3035::ac43:b671
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by mail.optimaopen.be: 2606:4700:3035::ac43:b671, 2606:4700:3036::6815:3bbb, 104.21.59.187 and 172.67.182.113.

other host names including www.egyarbitration.com, x(0x786e7878)(0x787878)xhd.courses, etherdeck.org, uccuc.com and cgstudents.net share IP numbers with mail.optimaopen.be.