mail.optimaopen.be - robtex.com
mail.optimaopen.be
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3035::ac43:b671πΊπΈ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3bbbπΊπΈ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.59.187Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.182.113πΊπΈ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.59.187, 172.67.182.113 | ||||||
| IPv6 hints | 2606:4700:3035::ac43:b671, 2606:4700:3036::6815:3bbb | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com | ||||||
optimaopen.be
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3035::ac43:b671πΊπΈ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3bbbπΊπΈ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.59.187Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.182.113πΊπΈ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | tani.ns.cloudflare.com β | ||||||
| NS | zeus.ns.cloudflare.com | ||||||
| MX | _dc-mx.0994ef827386.optimaopen.be β | ||||||
| TXT | v=spf1 a mx ip4:185.104.29.164 ip6:2a06:2ec0:1:0:0:0:0:165 include:filter-out... | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.59.187, 172.67.182.113 | ||||||
| IPv6 hints | 2606:4700:3035::ac43:b671, 2606:4700:3036::6815:3bbb | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=168, name=cloudflare-ech.com | ||||||
| SOA | tani.ns.cloudflare.comdns@cloudflare.com serial=2400183971 | ||||||
Previously MX for
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
βA104.21.59.1872026-02-15 β 2026-05-14 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
βA172.67.182.1132026-02-15 β 2026-05-14 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
βA185.104.29.602017-06-08 β 2017-06-08 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
βA2606:4700:3035::ac43:b6712026-02-15 β 2026-05-14 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
βA2606:4700:3036::6815:3bbb2026-02-15 β 2026-05-14 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
βA2a06:2ec0:1::1072017-06-08 β 2017-06-08 Β· 3 obs
β 2017-06-08 14:33:20
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
β 2026-02-15 14:44:38
β 2026-05-14 17:15:34
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| be | d.nsset.be, b.nsset.be, z.nsset.be, c.nsset.be... | - |
| optimaopen.be | tani.ns.cloudflare.com, zeus.ns.cloudflare.com | - |
β Authoritative Response
Server:172.64.33.249
NS records: tani.ns.cloudflare.com, zeus.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for optimaopen.be (unsigned zone)
β±οΈ Timing
Total: 632ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.182.113, 104.21.59.187 |
| AAAA | 2 | 2606:4700:3036::6815:3bbb, 2606:4700:3035::ac43:b671 |
| HTTPS | 1 | {"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.