mail.bobcastillo.org - robtex.com

mail.bobcastillo.org

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:d9df🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4e4b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.78.75Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.217.223🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.78.75, 172.67.217.223
IPv6 hints2606:4700:3031::ac43:d9df, 2606:4700:3034::6815:4e4b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=76, name=cloudflare-ech.com

bobcastillo.org

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:d9df🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4e4b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.78.75Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.217.223🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdahlia.ns.cloudflare.com ⭐
NSsullivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.78.75, 172.67.217.223
IPv6 hints2606:4700:3031::ac43:d9df, 2606:4700:3034::6815:4e4b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=76, name=cloudflare-ech.com
SOAdahlia.ns.cloudflare.comdns@cloudflare.com serial=2403611971

Previously MX for

bobcastillo.org

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026NSdns1.name-services.comA104.21.78.75172.67.217.2232606:4700:3031::ac43:d9df2606:4700:3034::6815:4e4b207.210.77.151
○NSdns1.name-services.com2015-06-29 → 2015-11-12 · 4 obs
● 2015-06-29 13:38:22
● 2015-11-12 02:09:58
○ 2016-02-23 12:10:32
○ 2026-05-11 00:50:36
●A104.21.78.752026-05-11 → 2026-05-11 · 2 obs
○ 2016-06-21 02:47:30
● 2026-05-11 00:50:36
●A172.67.217.2232026-05-11 → 2026-05-11 · 2 obs
○ 2016-06-21 02:47:30
● 2026-05-11 00:50:36
○A207.210.77.1512015-06-29 → 2016-06-21 · 3 obs
● 2015-06-29 13:38:22
● 2016-06-21 02:47:30
○ 2026-05-11 00:50:36
●A2606:4700:3031::ac43:d9df2026-05-11 → 2026-05-11 · 2 obs
○ 2016-06-21 02:47:30
● 2026-05-11 00:50:36
●A2606:4700:3034::6815:4e4b2026-05-11 → 2026-05-11 · 2 obs
○ 2016-06-21 02:47:30
● 2026-05-11 00:50:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
bobcastillo.orgsullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.89

NS records: sullivan.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bobcastillo.org (unsigned zone)

⏱️ Timing

Total: 114ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.217.223, 104.21.78.75
AAAA22606:4700:3031::ac43:d9df, 2606:4700:3034::6815:4e4b
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.bobcastillo.org maps to four IP numbers: 2606:4700:3031::ac43:d9df, 2606:4700:3034::6815:4e4b, 104.21.78.75 and 172.67.217.223.

Other host names, for instance blackjack-ca.com, cdn.twing.autos, tanyjsc.com, www.whoswho.sr and edg-eforgegeo.click share IP numbers with mail.bobcastillo.org.