masteryexamprep.com - robtex.com

masteryexamprep.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4f88🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:91bf🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.79.136Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.191🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoyce.ns.cloudflare.com ⭐
A2606:4700:50::a29f:260e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoyce.ns.cloudflare.com
A2803:f800:50::6ca2:c20e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjoyce.ns.cloudflare.com
A2a06:98c1:50::ac40:220e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjoyce.ns.cloudflare.com
A108.162.194.14🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoyce.ns.cloudflare.com
A162.159.38.14Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoyce.ns.cloudflare.com
A172.64.34.14🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjoyce.ns.cloudflare.com
NSpete.ns.cloudflare.com
A2606:4700:58::adf5:3b88🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A2803:f800:50::6ca2:c188🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpete.ns.cloudflare.com
A2a06:98c1:50::ac40:2188🇺🇸 Cloudflare2a06:98c1:50::/45
PTRpete.ns.cloudflare.com
A108.162.193.136🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A172.64.33.136🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
A173.245.59.136🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpete.ns.cloudflare.com
MXsmtp.google.com ⭐
A2607:f8b0:4004:c08::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f26.1e100.net
A2607:f8b0:4004:c08::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f27.1e100.net
A2607:f8b0:4004:c09::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbh-in-f26.1e100.net
A2607:f8b0:4004:c0b::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbj-in-f26.1e100.net
A142.250.31.26🇺🇸 Google142.250.31.0/24
PTRbj-in-f26.1e100.net
A142.250.31.27🇺🇸 Google142.250.31.0/24
PTRbj-in-f27.1e100.net
A172.253.63.26🇺🇸 Google172.253.63.0/24
PTRbi-in-f26.1e100.net
A172.253.63.27🇺🇸 Google172.253.63.0/24
PTRbi-in-f27.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
TXTgoogle-site-verification=Y8fesscNHPM3_S4rDAD_1weMWU3u57gAoGP_UiDNW7o
TXTv=spf1 include:_spf.google.com include:_spf.firebasemail.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.79.136, 172.67.145.191
IPv6 hints2606:4700:3030::6815:4f88, 2606:4700:3037::ac43:91bf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=20, name=cloudflare-ech.com
SOAjoyce.ns.cloudflare.comdns@cloudflare.com serial=2409532303

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=1784311217

Same first word

masteryexamprep.com

DNS History

11 records (7 active, 4 former)

NSjoyce.ns.cloudflare.compete.ns.cloudflare.comMXsmtp.google.comA104.21.79.136172.67.145.1912606:4700:3030::6815:4f882606:4700:3037::ac43:91bf188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSjoyce.ns.cloudflare.com2026-07-07 → 2026-07-17 · 2 obs
● 2026-07-07 11:05:14
● 2026-07-17 18:06:22
●NSpete.ns.cloudflare.com2026-07-07 → 2026-07-17 · 2 obs
● 2026-07-07 11:05:14
● 2026-07-17 18:06:22
●MXsmtp.google.com2026-07-07 → 2026-07-17 · 2 obs
● 2026-07-07 11:05:14
● 2026-07-17 18:06:22
●A104.21.79.1362026-07-17 → 2026-07-17 · 2 obs
○ 2026-07-07 11:05:14
● 2026-07-17 18:06:22
●A172.67.145.1912026-07-17 → 2026-07-17 · 2 obs
○ 2026-07-07 11:05:14
● 2026-07-17 18:06:22
○A188.114.96.02026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 11:05:14
○ 2026-07-17 18:06:22
○A188.114.97.02026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 11:05:14
○ 2026-07-17 18:06:22
●A2606:4700:3030::6815:4f882026-07-17 → 2026-07-17 · 2 obs
○ 2026-07-07 11:05:14
● 2026-07-17 18:06:22
●A2606:4700:3037::ac43:91bf2026-07-17 → 2026-07-17 · 2 obs
○ 2026-07-07 11:05:14
● 2026-07-17 18:06:22
○A2a06:98c1:3120::2026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 11:05:14
○ 2026-07-17 18:06:22
○A2a06:98c1:3121::2026-07-07 → 2026-07-07 · 2 obs
● 2026-07-07 11:05:14
○ 2026-07-17 18:06:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net...-
masteryexamprep.compete.ns.cloudflare.com, joyce.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.136

NS records: pete.ns.cloudflare.com, joyce.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteryexamprep.com (unsigned zone)

⏱️ Timing

Total: 420ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.145.191, 104.21.79.136
AAAA22606:4700:3037::ac43:91bf, 2606:4700:3030::6815:4f88
NS2joyce.ns.cloudflare.com, pete.ns.cloudflare.com
MX1smtp.google.com (pri: 1)
TXT2google-site-verification=Y8fesscNHPM3_S4, v=spf1 include:_spf.google.com include:_
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1joyce.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

masteryexamprep.com points to the four IP addresses 104.21.79.136, 172.67.145.191, 2606:4700:3030::6815:4f88 and 2606:4700:3037::ac43:91bf.

Among the host names that share IP numbers with masteryexamprep.com are blackbeltauto.com, zdaben.com, frenchcyclingholidays.com and two others.

Name Servers

DNS delegation for masteryexamprep.com points to two name servers: joyce.ns.cloudflare.com and pete.ns.cloudflare.com.

masteryexamprep.com has the same name server delegation as a number of other domains, such as tokenizer.ca, ummah.ps, hxbabycare-xx.top and two more.

The name servers of masteryexamprep.com overlap at least partially with those of other domains — among them bgd-group.co.uk, proxglobal.co, chrissale.co.uk and two more.

The name servers jermaine.ns.cloudflare.com, jeremy.ns.cloudflare.com and david.ns.cloudflare.com are commonly seen alongside these name servers.

Host names resolving to 6 IP numbers:

joyce.ns.cloudflare.com has IP addresses 108.162.194.14, 162.159.38.14 and 172.64.34.14, plus 3 other.

pete.ns.cloudflare.com has IP addresses 108.162.193.136, 172.64.33.136 and 173.245.59.136, plus 3 other.

Mail Servers

masteryexamprep.com routes its mail through a single mail server, smtp.google.com.

masteryexamprep.com has the same mail server arrangement as a number of other domains, for example bleaksolitude.com, stepbysteps.info, atelierviollet.com and two more.

masteryexamprep.com shares at least some of its mail servers with other domains — for example london-dental-implant.co.uk, alternateending.agency, calenglish.com.br and two more.

The mail servers aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are commonly used alongside these mail servers.

smtp.google.com directs to 9 IP numbers, including 142.250.31.26, 142.250.31.27 and 172.253.63.26, along with 6 other.