certprep.dev - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

certprep.dev

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:1554🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c511🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.84Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.197.17🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgail.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a74🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A2803:f800:50::6ca2:c074🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgail.ns.cloudflare.com
A2a06:98c1:50::ac40:2074🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgail.ns.cloudflare.com
A108.162.192.116🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A172.64.32.116🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
A173.245.58.116🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgail.ns.cloudflare.com
NStodd.ns.cloudflare.com
A2606:4700:58::adf5:3b92🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A2803:f800:50::6ca2:c192🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtodd.ns.cloudflare.com
A2a06:98c1:50::ac40:2192🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtodd.ns.cloudflare.com
A108.162.193.146🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A172.64.33.146🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
A173.245.59.146🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtodd.ns.cloudflare.com
TXTv=spf1 include:_spf.porkbun.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.21.84, 172.67.197.17
IPv6 hints2606:4700:3034::6815:1554, 2606:4700:3037::ac43:c511
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=87, name=cloudflare-ech.com
SOAgail.ns.cloudflare.comdns@cloudflare.com serial=2413833770

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
🔒 HSTS Preload (+subdomains)

Same first word

certprep.com
certprep.net
certprep.us
certprep.dev
certprep.pages.dev
certprep.io

Similar names

perceptr.blog
perceptr.org
treppcre.biz
prercept.com.ph
preceptr.com
perceptr.io
treppcre.com
perceptr.com

Previous names

certifyme.dev
certifyx.dev
certinfo.dev
certitude.dev
certix.dev
certkit.dev
certle.dev
certlocker.dev
certloop.dev
certly.dev
certmangler.dev
certmaster.dev
certmatic.dev
certn.dev
certnanny.dev
certology.dev
certool.dev
certops.dev
certpath.dev

Next names

certs.dev
certsentry.dev
certstream.dev
certsync.dev
certta.dev
certtail.dev
certu.dev
certus.dev
certverify.dev
ceru.dev
cerulean.dev
ceruleanlabs.dev
cerum.dev
cerus.dev
cerv.dev
cerva.dev
cervenka.dev
cervical.dev
cervine.dev
cervs.dev

DNS History

10 records (6 active, 4 former)

NSgail.ns.cloudflare.comtodd.ns.cloudflare.comA104.21.21.84172.67.197.172606:4700:3034::6815:15542606:4700:3037::ac43:c511188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSgail.ns.cloudflare.com2026-09-04 → 2026-09-04 · 2 obs
● 2026-09-04 11:22:08
● 2026-09-04 16:03:40
●NStodd.ns.cloudflare.com2026-09-04 → 2026-09-04 · 2 obs
● 2026-09-04 11:22:08
● 2026-09-04 16:03:40
●A104.21.21.842026-09-04 → 2026-09-04 · 3 obs
○ 2026-09-04 11:22:08
● 2026-09-04 12:59:22
● 2026-09-04 16:03:40
●A172.67.197.172026-09-04 → 2026-09-04 · 3 obs
○ 2026-09-04 11:22:08
● 2026-09-04 12:59:22
● 2026-09-04 16:03:40
○A188.114.96.02026-09-04 → 2026-09-04 · 3 obs
● 2026-09-04 11:22:08
○ 2026-09-04 12:59:22
○ 2026-09-04 16:03:40
○A188.114.97.02026-09-04 → 2026-09-04 · 3 obs
● 2026-09-04 11:22:08
○ 2026-09-04 12:59:22
○ 2026-09-04 16:03:40
●A2606:4700:3034::6815:15542026-09-04 → 2026-09-04 · 3 obs
○ 2026-09-04 11:22:08
● 2026-09-04 12:59:22
● 2026-09-04 16:03:40
●A2606:4700:3037::ac43:c5112026-09-04 → 2026-09-04 · 3 obs
○ 2026-09-04 11:22:08
● 2026-09-04 12:59:22
● 2026-09-04 16:03:40
○A2a06:98c1:3120::2026-09-04 → 2026-09-04 · 3 obs
● 2026-09-04 11:22:08
○ 2026-09-04 12:59:22
○ 2026-09-04 16:03:40
○A2a06:98c1:3121::2026-09-04 → 2026-09-04 · 3 obs
● 2026-09-04 11:22:08
○ 2026-09-04 12:59:22
○ 2026-09-04 16:03:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...10 records
certprep.devtodd.ns.cloudflare.com, gail.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.146

NS records: todd.ns.cloudflare.com, gail.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certprep.dev (unsigned zone)

⏱️ Timing

Total: 1190ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.197.17, 104.21.21.84
AAAA22606:4700:3037::ac43:c511, 2606:4700:3034::6815:1554
NS2gail.ns.cloudflare.com, todd.ns.cloudflare.com
TXT1v=spf1 include:_spf.porkbun.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1gail.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

certprep.dev has four IP addresses: 104.21.21.84, 172.67.197.17, 2606:4700:3034::6815:1554 and 2606:4700:3037::ac43:c511.

Two other host names, along with claude9.agency, easyday.id and tkgames.casino, also share IP numbers with certprep.dev.

Name Servers

certprep.dev has two authoritative name servers — gail.ns.cloudflare.com and todd.ns.cloudflare.com.

certprep.dev shares its NS records with other domains, for example ribylsocial.pages.dev, peakyblinders.tv, buertime.workers.dev and two others.

certprep.dev shares at least some of its name servers with other domains, including shulmanart.net, avcilarda.click, center-start-io-trez-en.pages.dev and two others.

These name servers are frequently seen alongside the name servers wally.ns.cloudflare.com, kirk.ns.cloudflare.com, kim.ns.cloudflare.com and yadiel.ns.cloudflare.com.

DNS names with 6 IP addresses:

gail.ns.cloudflare.com points to 108.162.192.116, 172.64.32.116, 173.245.58.116 and 3 other IP addresses.

todd.ns.cloudflare.com points to 108.162.193.146, 172.64.33.146, 173.245.59.146 and 3 other IP addresses.