studydex.net - robtex.com

studydex.net

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:8c8e🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:5728🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.87.40Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.140.142🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSivan.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b78🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A2803:f800:50::6ca2:c178🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRivan.ns.cloudflare.com
A2a06:98c1:50::ac40:2178🇺🇸 Cloudflare2a06:98c1:50::/45
PTRivan.ns.cloudflare.com
A108.162.193.120🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A172.64.33.120🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A173.245.59.120🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
NSnora.ns.cloudflare.com
A2606:4700:50::adf5:3ad5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnora.ns.cloudflare.com
A2803:f800:50::6ca2:c0d5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnora.ns.cloudflare.com
A2a06:98c1:50::ac40:20d5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnora.ns.cloudflare.com
A108.162.192.213🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnora.ns.cloudflare.com
A172.64.32.213🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnora.ns.cloudflare.com
A173.245.58.213🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnora.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
TXTgoogle-site-verification=rNxXuJkzXGGd0TOBr0PDOQc2gJXw9iILlGWjju5SJfM
TXTv=spf1 include:spf.efwd.registrar-servers.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.87.40, 172.67.140.142
IPv62606:4700:3035::ac43:8c8e, 2606:4700:3036::6815:5728
SOAivan.ns.cloudflare.comdns@cloudflare.com serial=2398533117

net

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291465

Same first word

studydex.com
studydex.net

DNS History

15 records (11 active, 4 former)

NSivan.ns.cloudflare.comnora.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.87.40172.67.140.1422606:4700:3035::ac43:8c8e2606:4700:3036::6815:5728188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSivan.ns.cloudflare.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●NSnora.ns.cloudflare.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●MXalt1.aspmx.l.google.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●MXalt2.aspmx.l.google.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●MXalt3.aspmx.l.google.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●MXalt4.aspmx.l.google.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●MXaspmx.l.google.com2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●A104.21.87.402026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●A172.67.140.1422026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
○A188.114.96.02026-03-13 → 2026-03-13 · 2 obs
○ 2026-03-13 22:14:06
○ 2026-03-13 22:14:08
○A188.114.97.02026-03-13 → 2026-03-13 · 2 obs
○ 2026-03-13 22:14:06
○ 2026-03-13 22:14:08
●A2606:4700:3035::ac43:8c8e2026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
●A2606:4700:3036::6815:57282026-03-13 → 2026-03-13 · 2 obs
● 2026-03-13 22:14:06
● 2026-03-13 22:14:08
○A2a06:98c1:3120::2026-03-13 → 2026-03-13 · 2 obs
○ 2026-03-13 22:14:06
○ 2026-03-13 22:14:08
○A2a06:98c1:3121::2026-03-13 → 2026-03-13 · 2 obs
○ 2026-03-13 22:14:06
○ 2026-03-13 22:14:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netk.gtld-servers.net, g.gtld-servers.net, e.gtld-servers.net, a.gtld-servers.net...-
studydex.netivan.ns.cloudflare.com, nora.ns.cloudflare.com-

✅ Authoritative Response

Server: 172.64.33.120

NS records: ivan.ns.cloudflare.com, nora.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studydex.net (unsigned zone)

⏱️ Timing

Total: 862ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.87.40, 172.67.140.142
AAAA22606:4700:3036::6815:5728, 2606:4700:3035::ac43:8c8e
NS2ivan.ns.cloudflare.com, nora.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=rNxXuJkzXGGd0TO, v=spf1 include:spf.efwd.registrar-server
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ivan.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

studydex.net resolves to four IP numbers: 2606:4700:3035::ac43:8c8e, 2606:4700:3036::6815:5728, 104.21.87.40 and 172.67.140.142.

other host names for instance mail.gifsec.com, pressexpress.lt, educationdab.com, communityskis.com and iss-association.org share IP numbers with studydex.net.

Name Servers

studydex.net is delegated to two name servers: ivan.ns.cloudflare.com and nora.ns.cloudflare.com.

studydex.net shares the same name server setup as other domains, for example povidka.eu, darisharik.ru, imo-messenger.ru, simplicity.kiwi and cake-build.net.

studydex.net at least partially shares name servers with other domains, for instance philandro.com, fwdcp.net, brightinsurance.com, npygk.com and redcarlos.com.

Host names with six IP numbers:

ivan.ns.cloudflare.com points to: 2606:4700:58::adf5:3b78, 2803:f800:50::6ca2:c178, 2a06:98c1:50::ac40:2178, 108.162.193.120, 172.64.33.120 and 173.245.59.120; nora.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad5, 2803:f800:50::6ca2:c0d5, 2a06:98c1:50::ac40:20d5, 108.162.192.213, 172.64.32.213 and 173.245.58.213.

Mail Servers

studydex.net is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

studydex.net shares mail servers with other domains at least partially, including fysiocenter.nu, metadata.io, 16miles.com, uchicomi.com and ns500754.ns500731.ns500671.ns500704.ns500704.ns500704.ns500705.ns500688.ns500666.ns500653.ns500153.tenderladiesbz.com.

these mail servers are often used with the mail servers aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Hosts with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27.

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26.

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26.

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26.

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27.