mx.istudytech.com - robtex.com

mx.istudytech.com

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:40fa🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8a7d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.250Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.138.125🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.250, 172.67.138.125
IPv6 hints2606:4700:3035::6815:40fa, 2606:4700:3037::ac43:8a7d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=158, name=cloudflare-ech.com

istudytech.com

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:40fa🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8a7d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.250Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.138.125🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSisaac.ns.cloudflare.com ⭐
NSmaria.ns.cloudflare.com
MXmx.istudytech.com ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.250, 172.67.138.125
IPv6 hints2606:4700:3035::6815:40fa, 2606:4700:3037::ac43:8a7d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=158, name=cloudflare-ech.com
SOAisaac.ns.cloudflare.comdns@cloudflare.com serial=2399399603

MX for

istudytech.com

Same first word

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DNS History

4 records (4 active, 0 former)

A104.21.64.250172.67.138.1252606:4700:3035::6815:40fa2606:4700:3037::ac43:8a7d
●A104.21.64.2502026-05-10 → 2026-05-10 · 2 obs
● 2026-05-10 08:24:34
● 2026-05-10 10:52:28
●A172.67.138.1252026-05-10 → 2026-05-10 · 2 obs
● 2026-05-10 08:24:34
● 2026-05-10 10:52:28
●A2606:4700:3035::6815:40fa2026-05-10 → 2026-05-10 · 2 obs
● 2026-05-10 08:24:34
● 2026-05-10 10:52:28
●A2606:4700:3037::ac43:8a7d2026-05-10 → 2026-05-10 · 2 obs
● 2026-05-10 08:24:34
● 2026-05-10 10:52:28

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net...-
istudytech.comisaac.ns.cloudflare.com, maria.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.192

NS records: isaac.ns.cloudflare.com, maria.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for istudytech.com (unsigned zone)

⏱️ Timing

Total: 125ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.64.250, 172.67.138.125
AAAA22606:4700:3035::6815:40fa, 2606:4700:3037::ac43:8a7d
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

mx.istudytech.com acts as a mail server for istudytech.com.

IP Addresses

mx.istudytech.com points to four IP numbers: 2606:4700:3035::6815:40fa, 2606:4700:3037::ac43:8a7d, 104.21.64.250 and 172.67.138.125.

Other host names, for instance tc2288.com, nomrom.com, astrypha.store, www.singleboersen-vergleich.ch and pickoutlayer.click share IP numbers with mx.istudytech.com.