testprepbuilder.com - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

testprepbuilder.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:168c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:cd1e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.22.140Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.205.30🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSathena.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a48🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A2803:f800:50::6ca2:c048🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRathena.ns.cloudflare.com
A2a06:98c1:50::ac40:2048🇺🇸 Cloudflare2a06:98c1:50::/45
PTRathena.ns.cloudflare.com
A108.162.192.72🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A172.64.32.72🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
A173.245.58.72🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRathena.ns.cloudflare.com
NSnorman.ns.cloudflare.com
A2606:4700:58::adf5:3bd9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorman.ns.cloudflare.com
A2803:f800:50::6ca2:c1d9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnorman.ns.cloudflare.com
A2a06:98c1:50::ac40:21d9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnorman.ns.cloudflare.com
A108.162.193.217🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorman.ns.cloudflare.com
A172.64.33.217🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorman.ns.cloudflare.com
A173.245.59.217🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorman.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.22.140, 172.67.205.30
IPv6 hints2606:4700:3033::6815:168c, 2606:4700:3033::ac43:cd1e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=232, name=cloudflare-ech.com
SOAathena.ns.cloudflare.comdns@cloudflare.com serial=2416519022

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=1794312591

Previously MX for

testprepbuilder.com

Same first word

testprepbuilder.com

Previous names

testprepatlanta.com
testprepaudit.com
testprepaz.com
testprepbangla.com
testprepbank.com
testprepbaseline.com
testprepbay.com
testprepblitz.com
testprepbook.com
testprepbooks.com
testprepboost.com
testprepbootcamp.com
testprepboston.com
testprepbot.com
testprepboulder.com
testprepbros.com
testprepbuffalo.com

Next names

testprepbyfatima.com
testprepbykisa.com
testprepbyrenee.com
testprepbystep.com
testprepcamp.com
testprepcamps.com
testprepcampus.com
testprepcare.com
testprepcenter.com
testprepchallenge.com
testprepchampions.com
testprepchannel.com
testprepchicago.com
testprepcity.com
testprepclinic.com
testprepco.com
testprepcoach.com
testprepcoachai.com
testprepcoaching.com

DNS History

10 records (6 active, 4 former)

2017201820192020202120222023202420252026NSathena.ns.cloudflare.comnorman.ns.cloudflare.comns1.pocket-prep.comns2.pocket-prep.comMXtestprepbuilder.comA104.21.22.140172.67.205.302606:4700:3033::6815:168c2606:4700:3033::ac43:cd1e50.116.75.171
●NSathena.ns.cloudflare.com2026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
●NSnorman.ns.cloudflare.com2026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
○NSns1.pocket-prep.com2016-12-20 → 2017-12-29 · 4 obs
● 2016-12-20 22:04:14
● 2017-12-29 13:53:48
○ 2026-10-03 10:51:32
○ 2026-11-10 12:25:26
○NSns2.pocket-prep.com2016-12-20 → 2017-12-29 · 4 obs
● 2016-12-20 22:04:14
● 2017-12-29 13:53:48
○ 2026-10-03 10:51:32
○ 2026-11-10 12:25:26
○MXtestprepbuilder.com2016-12-20 → 2017-12-29 · 4 obs
● 2016-12-20 22:04:14
● 2017-12-29 13:53:48
○ 2026-10-03 10:51:32
○ 2026-11-10 12:25:26
●A104.21.22.1402026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
●A172.67.205.302026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
●A2606:4700:3033::6815:168c2026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
●A2606:4700:3033::ac43:cd1e2026-10-03 → 2026-11-10 · 3 obs
○ 2017-12-29 13:53:48
● 2026-10-03 10:51:32
● 2026-11-10 12:25:26
○A50.116.75.1712016-12-20 → 2017-12-29 · 4 obs
● 2016-12-20 22:04:14
● 2017-12-29 13:53:48
○ 2026-10-03 10:51:32
○ 2026-11-10 12:25:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
testprepbuilder.comathena.ns.cloudflare.com, norman.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.72

NS records: athena.ns.cloudflare.com, norman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 74ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.205.30, 104.21.22.140
AAAA22606:4700:3033::ac43:cd1e, 2606:4700:3033::6815:168c
NS2athena.ns.cloudflare.com, norman.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1athena.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

testprepbuilder.com points to the four IP addresses 104.21.22.140, 172.67.205.30, 2606:4700:3033::6815:168c and 2606:4700:3033::ac43:cd1e.

Two other host names, along with gastro-ai-assistent.site, sp898.org and watermarkairemove.com, also share IP numbers with testprepbuilder.com.

Name Servers

testprepbuilder.com uses two name servers for its delegation: athena.ns.cloudflare.com and norman.ns.cloudflare.com.

testprepbuilder.com shares its NS records with other domains, for example esther.ie, faraway-fairways.com, stefan-bd9.workers.dev and two others.

There is at least partial name server overlap between testprepbuilder.com and other domains — hussainyamani840.workers.dev, gwp-libertybagelcafe.sbs, 8dbmokn.sbs and two more among them.

The name servers adel.ns.cloudflare.com, eloise.ns.cloudflare.com, logan.ns.cloudflare.com and two others are commonly seen in use alongside these name servers.

DNS names with 6 IP addresses:

Hostname athena.ns.cloudflare.com directs to 108.162.192.72, 172.64.32.72 and 173.245.58.72 along with 3 other IP addresses.

Hostname norman.ns.cloudflare.com directs to 108.162.193.217, 172.64.33.217 and 173.245.59.217 along with 3 other IP addresses.