brainstack.courses - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

brainstack.courses

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:bb43🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:58f2🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.88.242Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.187.67🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSgrace.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A2803:f800:50::6ca2:c09f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgrace.ns.cloudflare.com
A2a06:98c1:50::ac40:209f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgrace.ns.cloudflare.com
A108.162.192.159🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A172.64.32.159🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
A173.245.58.159🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrace.ns.cloudflare.com
NStadeo.ns.cloudflare.com
A2606:4700:58::a29f:2cc5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A2803:f800:50::6ca2:c3c5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtadeo.ns.cloudflare.com
A2a06:98c1:50::ac40:23c5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtadeo.ns.cloudflare.com
A108.162.195.197🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A162.159.44.197Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
A172.64.35.197🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtadeo.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.88.242, 172.67.187.67
IPv6 hints2606:4700:3034::ac43:bb43, 2606:4700:3037::6815:58f2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=57, name=cloudflare-ech.com
SOAgrace.ns.cloudflare.comdns@cloudflare.com serial=2412259323

courses

DNSSEC🔒 Signed (DS record present)
NSa.nic.courses ⭐
NSb.nic.courses
NSc.nic.courses
NSx.nic.courses
NSy.nic.courses
NSz.nic.courses
SOAa.nic.coursesadmin@tldns.godaddy serial=1787821658
⚠️ On DNS blocklist: spam-tlds

Same first word

brainstack.pro
brainstack.org
brainstack.net
brainstack.me
brainstack.io
brainstack.dev
brainstack.de
brainstack.app
brainstack.courses
brainstack.nz
brainstack.tech

Similar names

crankbaits.ca
crankbaits.com
brianstack.co.uk
abstrakinc.com
stackbrain.online
crankbaits.de
stackbrain.com
cantabrisk.com
brianstack.net

Previous names

boltingsxystoiinflatile.courses
bomberleash.courses
bonevelinnv.courses
bongdalu.courses
bookenddemographics.courses
bookkeeping.courses
booksensitive.courses
boondoggleredesertion.courses
boostlavenderclub.courses
bootdispatchwinner.courses
borucagoniometereonian.courses
boss77.courses
bosunsbloodthirstiest.courses
botanisedtroubledly.courses
bottom-less-waiter-natural.courses
brachpithworkexograph.courses
brachycephalycysteines.courses
bracian.courses
brainfood.courses
brainmorers.courses

Next names

brainworkerdarendamselhood.courses
branchora.courses
brandironrethinksworks.courses
brandmanagement.courses
brandstrategy.courses
brandweb.courses
brass-jairan-life-saving.courses
bravemarsh1.courses
bravemove.courses
braverune188.courses
breadthwaysconsistences.courses
breakthrough.courses
breezeloop.courses
breviarithmocratic.courses
briananderson.courses
bridalparlor.courses
bridalweave.courses
brieflesslyintercharge.courses
brightacademy.courses
brightarcad.courses

DNS History

6 records (6 active, 0 former)

NSgrace.ns.cloudflare.comtadeo.ns.cloudflare.comA104.21.88.242172.67.187.672606:4700:3034::ac43:bb432606:4700:3037::6815:58f2
●NSgrace.ns.cloudflare.com2026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56
●NStadeo.ns.cloudflare.com2026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56
●A104.21.88.2422026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56
●A172.67.187.672026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56
●A2606:4700:3034::ac43:bb432026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56
●A2606:4700:3037::6815:58f22026-08-20 → 2026-08-27 · 2 obs
● 2026-08-20 08:44:32
● 2026-08-27 10:25:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesa.nic.courses, c.nic.courses, y.nic.courses, x.nic.courses...12 records
brainstack.coursestadeo.ns.cloudflare.com, grace.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.197

NS records: tadeo.ns.cloudflare.com, grace.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for brainstack.courses (unsigned zone)

⏱️ Timing

Total: 819ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.88.242, 172.67.187.67
AAAA22606:4700:3037::6815:58f2, 2606:4700:3034::ac43:bb43
NS2grace.ns.cloudflare.com, tadeo.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1grace.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)

Analysis

IP Addresses

brainstack.courses resolves to four IP addresses: 104.21.88.242, 172.67.187.67, 2606:4700:3034::ac43:bb43 and 2606:4700:3037::6815:58f2.

Among the host names that share IP numbers with brainstack.courses are plehatron.com, 24stellarplatform.com, luckyhillscasino-online.com and two others.

Name Servers

brainstack.courses is delegated to two name servers: grace.ns.cloudflare.com and tadeo.ns.cloudflare.com.

brainstack.courses has the same name server delegation as a number of other domains, such as bo-okwill-iam1913.workers.dev, scalegrowth.top, knowledgetree.courses and two more.

brainstack.courses has at least partial name server overlap with other domains, such as doret.ch, jackbomgiris.net, sunshowerlabs.com and two others.

It is common to find these name servers paired with the name servers martin.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

grace.ns.cloudflare.com resolves to 108.162.192.159, 172.64.32.159, 173.245.58.159 and 3 other IP addresses.

tadeo.ns.cloudflare.com resolves to 108.162.195.197, 162.159.44.197, 172.64.35.197 and 3 other IP addresses.