mail.rref.su - robtex.com

mail.rref.su

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:497b🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:be06🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.73.123Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.190.6🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.73.123, 172.67.190.6
IPv6 hints2606:4700:3032::6815:497b, 2606:4700:3033::ac43:be06
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=185, name=cloudflare-ech.com

rref.su

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:497b🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:be06🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.73.123Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.190.6🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjustin.ns.cloudflare.com ⭐
NSkallie.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.73.123, 172.67.190.6
IPv6 hints2606:4700:3032::6815:497b, 2606:4700:3033::ac43:be06
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=185, name=cloudflare-ech.com
SOAjustin.ns.cloudflare.comdns@cloudflare.com serial=2404019385

Previously MX for

rref.su

Same first word

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DNS History

4 records (4 active, 0 former)

A104.21.73.123172.67.190.62606:4700:3032::6815:497b2606:4700:3033::ac43:be06
●A104.21.73.1232026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 19:38:10
● 2026-07-07 19:38:12
●A172.67.190.62026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 19:38:10
● 2026-07-07 19:38:12
●A2606:4700:3032::6815:497b2026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 19:38:10
● 2026-07-07 19:38:12
●A2606:4700:3033::ac43:be062026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 19:38:10
● 2026-07-07 19:38:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sua.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...10 records
rref.sujustin.ns.cloudflare.com, kallie.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.85

NS records: justin.ns.cloudflare.com, kallie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rref.su (unsigned zone)

⏱️ Timing

Total: 851ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.190.6, 104.21.73.123
AAAA22606:4700:3032::6815:497b, 2606:4700:3033::ac43:be06
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (a.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net...)

Analysis

IP Addresses

mail.rref.su directs to four IP numbers, which are 104.21.73.123, 172.67.190.6, 2606:4700:3032::6815:497b and 2606:4700:3033::ac43:be06.

Two other host names, along with vertexfield.nl, infokontora.com and www.casinosidan.com, also share IP numbers with mail.rref.su.