mail.ruby-usa.com - robtex.com

mail.ruby-usa.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:15b6🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c7c9🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.182Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.199.201🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.21.182, 172.67.199.201
IPv62606:4700:3032::6815:15b6, 2606:4700:3037::ac43:c7c9

ruby-usa.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:15b6🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c7c9🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.182Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.199.201🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdana.ns.cloudflare.com ⭐
NSnorman.ns.cloudflare.com
MX_dc-mx.0d2c38ff96a8.ruby-usa.com ⭐
TXTv=DMARC1; p=none;
TXTv=spf1 a mx ip4:63.250.61.141 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.21.182, 172.67.199.201
IPv62606:4700:3032::6815:15b6, 2606:4700:3037::ac43:c7c9
SOAdana.ns.cloudflare.comdns@cloudflare.com serial=2397188044

Previously MX for

ruby-usa.com

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026A104.21.21.182172.67.199.2012606:4700:3032::6815:15b62606:4700:3037::ac43:c7c9185.18.204.6762.219.234.65
●A104.21.21.1822026-02-14 → 2026-03-26 · 3 obs
○ 2016-04-24 15:48:00
● 2026-02-14 23:44:28
● 2026-03-26 15:37:56
●A172.67.199.2012026-02-14 → 2026-03-26 · 3 obs
○ 2016-04-24 15:48:00
● 2026-02-14 23:44:28
● 2026-03-26 15:37:56
○A185.18.204.672015-11-14 → 2016-04-24 · 5 obs
○ 2015-07-11 04:23:32
● 2015-11-14 06:34:20
● 2016-04-24 15:48:00
○ 2026-02-14 23:44:28
○ 2026-03-26 15:37:56
●A2606:4700:3032::6815:15b62026-02-14 → 2026-03-26 · 3 obs
○ 2016-04-24 15:48:00
● 2026-02-14 23:44:28
● 2026-03-26 15:37:56
●A2606:4700:3037::ac43:c7c92026-02-14 → 2026-03-26 · 3 obs
○ 2016-04-24 15:48:00
● 2026-02-14 23:44:28
● 2026-03-26 15:37:56
○A62.219.234.652015-07-11 → 2015-07-11 · 3 obs
● 2015-07-11 04:23:32
○ 2015-11-14 06:34:20
○ 2026-03-26 15:37:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
ruby-usa.comdana.ns.cloudflare.com, norman.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.217

NS records: dana.ns.cloudflare.com, norman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ruby-usa.com (unsigned zone)

⏱️ Timing

Total: 527ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.21.182, 172.67.199.201
AAAA22606:4700:3037::ac43:c7c9, 2606:4700:3032::6815:15b6
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.ruby-usa.com maps to four IP numbers: 2606:4700:3032::6815:15b6, 2606:4700:3037::ac43:c7c9, 104.21.21.182 and 172.67.199.201.

other host names include mta.plumsail.com, spam.plumsail.com, www.runnersneed.co.uk, mailin.plumsail.com and roman.tunnels.plumsail.com; they share IP numbers with mail.ruby-usa.com.