courseslb.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

courseslb.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:893f🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:56dc🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.86.220Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.137.63🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrit.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a4e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A2803:f800:50::6ca2:c04e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbrit.ns.cloudflare.com
A2a06:98c1:50::ac40:204e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbrit.ns.cloudflare.com
A108.162.192.78🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A172.64.32.78🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
A173.245.58.78🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbrit.ns.cloudflare.com
NSchip.ns.cloudflare.com
A2606:4700:58::adf5:3b54🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchip.ns.cloudflare.com
A2803:f800:50::6ca2:c154🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRchip.ns.cloudflare.com
A2a06:98c1:50::ac40:2154🇺🇸 Cloudflare2a06:98c1:50::/45
PTRchip.ns.cloudflare.com
A108.162.193.84🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchip.ns.cloudflare.com
A172.64.33.84🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchip.ns.cloudflare.com
A173.245.59.84🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchip.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.86.220, 172.67.137.63
IPv6 hints2606:4700:3030::ac43:893f, 2606:4700:3037::6815:56dc
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=197, name=cloudflare-ech.com
SOAbrit.ns.cloudflare.comdns@cloudflare.com serial=2409828012

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=1786794024

Same first word

courseslb.com

Similar names

erosclubs.ch
bluecross.ai
bluecross.be
bluecross.me
clubroses.com
bluecross.ru
crossblue.de
bluecross.co.uk
belcursos.com
bluecross.uk.com
bluecross.hu
erosclubs.de
bluecross.tw
bluecross.com.vn
bluecross.org.in
bluecross.com
bluecross.ie
bluecross.com.au
boslsecur.com
rosesclub.com
bluecross.com.hk
blscourse.com
bluecross.biz
bluecross.nl
clubroses.at
bluecross.org.uk
bleucross.org
bluecross.pl
bluecross.london
losbruces.com
crossblue.com
blscourse.net
bluecross.mn
bleucross.ca
bslcourse.com
bluecross.com.br
bluecross.ca
bluecross.quebec
slbsource.s3.amazonaws.com
bluecross.asia
bluecross.com.ph

DNS History

9 records (6 active, 3 former)

NSbrit.ns.cloudflare.comchip.ns.cloudflare.comnovalee.ns.cloudflare.comzeus.ns.cloudflare.comA104.21.86.220172.67.137.632606:4700:3030::ac43:893f2606:4700:3037::6815:56dc2606:4700:3037::ac43:893f
●NSbrit.ns.cloudflare.com2026-05-04 → 2026-08-15 · 3 obs
○ 2026-04-13 07:03:58
● 2026-05-04 22:24:20
● 2026-08-15 12:06:38
●NSchip.ns.cloudflare.com2026-05-04 → 2026-08-15 · 3 obs
○ 2026-04-13 07:03:58
● 2026-05-04 22:24:20
● 2026-08-15 12:06:38
○NSnovalee.ns.cloudflare.com2026-03-19 → 2026-04-13 · 4 obs
● 2026-03-19 00:28:54
● 2026-04-13 07:03:58
○ 2026-05-04 22:24:20
○ 2026-08-15 12:06:38
○NSzeus.ns.cloudflare.com2026-03-19 → 2026-04-13 · 4 obs
● 2026-03-19 00:28:54
● 2026-04-13 07:03:58
○ 2026-05-04 22:24:20
○ 2026-08-15 12:06:38
●A104.21.86.2202026-03-19 → 2026-08-15 · 2 obs
● 2026-03-19 00:28:54
● 2026-08-15 12:06:38
●A172.67.137.632026-03-19 → 2026-08-15 · 2 obs
● 2026-03-19 00:28:54
● 2026-08-15 12:06:38
●A2606:4700:3030::ac43:893f2026-07-08 → 2026-08-15 · 3 obs
○ 2026-06-15 00:35:50
● 2026-07-08 11:26:00
● 2026-08-15 12:06:38
●A2606:4700:3037::6815:56dc2026-03-19 → 2026-08-15 · 2 obs
● 2026-03-19 00:28:54
● 2026-08-15 12:06:38
○A2606:4700:3037::ac43:893f2026-03-19 → 2026-06-15 · 4 obs
● 2026-03-19 00:28:54
● 2026-06-15 00:35:50
○ 2026-07-08 11:26:00
○ 2026-08-15 12:06:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net...-
courseslb.combrit.ns.cloudflare.com, chip.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.78

NS records: brit.ns.cloudflare.com, chip.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courseslb.com (unsigned zone)

⏱️ Timing

Total: 119ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.86.220, 172.67.137.63
AAAA22606:4700:3030::ac43:893f, 2606:4700:3037::6815:56dc
NS2brit.ns.cloudflare.com, chip.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1brit.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

courseslb.com has four IP addresses: 104.21.86.220, 172.67.137.63, 2606:4700:3030::ac43:893f and 2606:4700:3037::6815:56dc.

cryptofiveo.com, izmirkadin.com, somaliaeducation.info plus two other host names have IP numbers in common with courseslb.com.

Name Servers

courseslb.com uses two name servers for its delegation: brit.ns.cloudflare.com and chip.ns.cloudflare.com.

The name server configuration of courseslb.com is shared with other domains, for instance rede-internacional-imoveis.com, abasky.ch, rlsd.co and two others.

courseslb.com shares at least some of its name servers with other domains, including 1000(0x666170)vids.com, optimumwestinsurance.ca, darkageko.com and two others.

These name servers are frequently seen alongside the name servers liberty.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname brit.ns.cloudflare.com directs to 108.162.192.78, 172.64.32.78 and 173.245.58.78 along with 3 other IP addresses.

Hostname chip.ns.cloudflare.com directs to 108.162.193.84, 172.64.33.84 and 173.245.59.84 along with 3 other IP addresses.