mdustudy.com - robtex.com

mdustudy.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:9bdd🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:2249🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.34.73Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.155.221🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjosh.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b7e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosh.ns.cloudflare.com
A2803:f800:50::6ca2:c17e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjosh.ns.cloudflare.com
A2a06:98c1:50::ac40:217e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjosh.ns.cloudflare.com
A108.162.193.126🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosh.ns.cloudflare.com
A172.64.33.126🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosh.ns.cloudflare.com
A173.245.59.126🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjosh.ns.cloudflare.com
NSsima.ns.cloudflare.com
A2606:4700:50::adf5:3ade🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsima.ns.cloudflare.com
A2803:f800:50::6ca2:c0de🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsima.ns.cloudflare.com
A2a06:98c1:50::ac40:20de🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsima.ns.cloudflare.com
A108.162.192.222🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsima.ns.cloudflare.com
A172.64.32.222🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsima.ns.cloudflare.com
A173.245.58.222🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsima.ns.cloudflare.com
TXTgoogle-site-verification=cyW-itXc39cIakFHDWrdYaTggKZbvSBZzxD0VKLB0Mc
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.34.73, 172.67.155.221
IPv62606:4700:3031::ac43:9bdd, 2606:4700:3036::6815:2249
SOAjosh.ns.cloudflare.comdns@cloudflare.com serial=2398906873

com

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=1774385782

Subdomains

www.mdustudy.com

Same first word

mdustudy.com

DNS History

6 records (6 active, 0 former)

NSjosh.ns.cloudflare.comsima.ns.cloudflare.comA104.21.34.73172.67.155.2212606:4700:3031::ac43:9bdd2606:4700:3036::6815:2249
●NSjosh.ns.cloudflare.com2026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18
●NSsima.ns.cloudflare.com2026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18
●A104.21.34.732026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18
●A172.67.155.2212026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18
●A2606:4700:3031::ac43:9bdd2026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18
●A2606:4700:3036::6815:22492026-02-25 → 2026-03-24 · 2 obs
● 2026-02-25 09:22:48
● 2026-03-24 21:08:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...-
mdustudy.comjosh.ns.cloudflare.com, sima.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.222

NS records: josh.ns.cloudflare.com, sima.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mdustudy.com (unsigned zone)

⏱️ Timing

Total: 159ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.155.221, 104.21.34.73
AAAA22606:4700:3036::6815:2249, 2606:4700:3031::ac43:9bdd
NS2josh.ns.cloudflare.com, sima.ns.cloudflare.com
TXT1google-site-verification=cyW-itXc39cIakF
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1josh.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.mdustudy.com is mdustudy.com.

IP Addresses

mdustudy.com maps to four IP numbers: 2606:4700:3031::ac43:9bdd, 2606:4700:3036::6815:2249, 104.21.34.73 and 172.67.155.221.

other host names include d-m.com.ua, lotrfanaticsplaza.com, gsc-cloud.net, mail.displaydevices.com and qqjx.net; they share IP numbers with mdustudy.com.

Name Servers

Two name servers josh.ns.cloudflare.com and sima.ns.cloudflare.com handle the delegation for mdustudy.com.

mdustudy.com shares the same name server setup as other domains, for instance cdluonline.com, bsebstudy.com, widgetadmanager.com, ccsustudy.com and advancedbackgroundchecks.com.

mdustudy.com at least partially shares name servers with other domains, for instance masrsite.com, lorud.shop, 72b7c4.com, 8668.info and cheemagroup.co.uk.

These name servers are commonly used with sage.ns.cloudflare.com and alice.ns.cloudflare.com.

Six IP addresses per host:

josh.ns.cloudflare.com points to 2606:4700:58::adf5:3b7e, 2803:f800:50::6ca2:c17e, 2a06:98c1:50::ac40:217e, 108.162.193.126, 172.64.33.126 and 173.245.59.126; sima.ns.cloudflare.com points to 2606:4700:50::adf5:3ade, 2803:f800:50::6ca2:c0de, 2a06:98c1:50::ac40:20de, 108.162.192.222, 172.64.32.222 and 173.245.58.222