mail.gdcserver.net - robtex.com

mail.gdcserver.net

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9b8a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:38bc🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.56.188Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.155.138🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.56.188, 172.67.155.138
IPv6 hints2606:4700:3030::ac43:9b8a, 2606:4700:3035::6815:38bc
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com

gdcserver.net

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9b8a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:38bc🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.56.188Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.155.138🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlucy.ns.cloudflare.com ⭐
NStheo.ns.cloudflare.com
MX_dc-mx.8b0afb3d27ed.gdcserver.net ⭐
TXTv=spf1 +a +mx +a:server.hasufel.net -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.56.188, 172.67.155.138
IPv6 hints2606:4700:3030::ac43:9b8a, 2606:4700:3035::6815:38bc
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=3, name=cloudflare-ech.com
SOAlucy.ns.cloudflare.comdns@cloudflare.com serial=2399284161

Previously MX for

gdcserver.net

Same first word

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DNS History

5 records (4 active, 1 former)

202120222023202420252026A104.21.56.188172.67.155.1382606:4700:3030::ac43:9b8a2606:4700:3035::6815:38bc74.208.121.239
●A104.21.56.1882026-04-26 → 2026-04-26 · 2 obs
○ 2020-03-07 13:19:12
● 2026-04-26 09:14:26
●A172.67.155.1382026-04-26 → 2026-04-26 · 2 obs
○ 2020-03-07 13:19:12
● 2026-04-26 09:14:26
●A2606:4700:3030::ac43:9b8a2026-04-26 → 2026-04-26 · 2 obs
○ 2020-03-07 13:19:12
● 2026-04-26 09:14:26
●A2606:4700:3035::6815:38bc2026-04-26 → 2026-04-26 · 2 obs
○ 2020-03-07 13:19:12
● 2026-04-26 09:14:26
○A74.208.121.2392020-03-07 → 2020-03-07 · 2 obs
● 2020-03-07 13:19:12
○ 2026-04-26 09:14:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
neta.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
gdcserver.netlucy.ns.cloudflare.com, theo.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.133

NS records: lucy.ns.cloudflare.com, theo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gdcserver.net (unsigned zone)

⏱️ Timing

Total: 423ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.155.138, 104.21.56.188
AAAA22606:4700:3030::ac43:9b8a, 2606:4700:3035::6815:38bc
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.gdcserver.net resolves to four IPs: 2606:4700:3030::ac43:9b8a, 2606:4700:3035::6815:38bc, 104.21.56.188 and 172.67.155.138.

Other host names, for instance elechos.net, dharmab.com, www.buildexexpo.com, gdcserver.net and buildexexpo.com share IP numbers with mail.gdcserver.net.