mail.rftc-cert.com - robtex.com

mail.rftc-cert.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:54e5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:c65d🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.229Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.93🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.229, 172.67.198.93
IPv6 hints2606:4700:3032::6815:54e5, 2606:4700:3032::ac43:c65d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=122, name=cloudflare-ech.com

rftc-cert.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:54e5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:c65d🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.84.229Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.198.93🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgarrett.ns.cloudflare.com ⭐
NSnadia.ns.cloudflare.com
MX_dc-mx.2efb6471f069.rftc-cert.com ⭐
TXTv=spf1 a mx ip4:185.130.50.119 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.84.229, 172.67.198.93
IPv6 hints2606:4700:3032::6815:54e5, 2606:4700:3032::ac43:c65d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=122, name=cloudflare-ech.com
SOAgarrett.ns.cloudflare.comdns@cloudflare.com serial=2399656738

Previously MX for

rftc-cert.com

Same first word

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DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026A104.21.84.229172.67.198.932606:4700:3032::6815:54e52606:4700:3032::ac43:c65d104.31.94.153104.31.95.153144.76.191.146
●A104.21.84.2292026-04-14 → 2026-04-14 · 2 obs
○ 2016-04-21 02:38:36
● 2026-04-14 13:05:28
○A104.31.94.1532015-11-04 → 2016-04-21 · 4 obs
○ 2015-06-25 20:28:18
● 2015-11-04 03:11:42
● 2016-04-21 02:38:36
○ 2026-04-14 13:05:28
○A104.31.95.1532015-11-04 → 2016-04-21 · 4 obs
○ 2015-06-25 20:28:18
● 2015-11-04 03:11:42
● 2016-04-21 02:38:36
○ 2026-04-14 13:05:28
○A144.76.191.1462015-06-25 → 2015-06-25 · 3 obs
● 2015-06-25 20:28:18
○ 2015-11-04 03:11:42
○ 2026-04-14 13:05:28
●A172.67.198.932026-04-14 → 2026-04-14 · 2 obs
○ 2016-04-21 02:38:36
● 2026-04-14 13:05:28
●A2606:4700:3032::6815:54e52026-04-14 → 2026-04-14 · 2 obs
○ 2016-04-21 02:38:36
● 2026-04-14 13:05:28
●A2606:4700:3032::ac43:c65d2026-04-14 → 2026-04-14 · 2 obs
○ 2016-04-21 02:38:36
● 2026-04-14 13:05:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...-
rftc-cert.comnadia.ns.cloudflare.com, garrett.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.195

NS records: nadia.ns.cloudflare.com, garrett.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rftc-cert.com (unsigned zone)

⏱️ Timing

Total: 101ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.84.229, 172.67.198.93
AAAA22606:4700:3032::ac43:c65d, 2606:4700:3032::6815:54e5
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (nadia.ns.cloudflare.com, nadia.ns.cloudflare.com, nadia.ns.cloudflare.com...)

Analysis

IP Addresses

mail.rftc-cert.com maps to four IP numbers: 2606:4700:3032::6815:54e5, 2606:4700:3032::ac43:c65d, 104.21.84.229 and 172.67.198.93.

other host names include ybak.com.cn, raysan.com, kao48.net, dinrabattkod.se and citymeshconnect.be; they share IP numbers with mail.rftc-cert.com.