rubybison.courses - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

rubybison.courses

DNSSEC⚠️ Not signed
A23.145.248.82🇺🇸 CLOUDFLARESPECTRUM23.145.248.0/24 Spire Cloud Limited
A23.145.248.83🇺🇸 CLOUDFLARESPECTRUM23.145.248.0/24 Spire Cloud Limited
NSaliza.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2637🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaliza.ns.cloudflare.com
A2803:f800:50::6ca2:c237🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRaliza.ns.cloudflare.com
A2a06:98c1:50::ac40:2237🇺🇸 Cloudflare2a06:98c1:50::/45
PTRaliza.ns.cloudflare.com
A108.162.194.55🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaliza.ns.cloudflare.com
A162.159.38.55Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaliza.ns.cloudflare.com
A172.64.34.55🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaliza.ns.cloudflare.com
NScoby.ns.cloudflare.com
A2606:4700:58::adf5:3b5c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoby.ns.cloudflare.com
A2803:f800:50::6ca2:c15c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoby.ns.cloudflare.com
A2a06:98c1:50::ac40:215c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoby.ns.cloudflare.com
A108.162.193.92🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoby.ns.cloudflare.com
A172.64.33.92🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoby.ns.cloudflare.com
A173.245.59.92🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoby.ns.cloudflare.com
SOAaliza.ns.cloudflare.comdns@cloudflare.com serial=2416972670

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=1794439815
⚠️ On DNS blocklist: spam-tlds

Same first word

rubybison.courses
rubybison.com

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DNS History

4 records (4 active, 0 former)

NSaliza.ns.cloudflare.comcoby.ns.cloudflare.comA23.145.248.8223.145.248.83
●NSaliza.ns.cloudflare.com2026-10-08 → 2026-11-12 · 2 obs
● 2026-10-08 16:44:24
● 2026-11-12 00:59:36
●NScoby.ns.cloudflare.com2026-10-08 → 2026-11-12 · 2 obs
● 2026-10-08 16:44:24
● 2026-11-12 00:59:36
●A23.145.248.822026-10-08 → 2026-11-12 · 2 obs
● 2026-10-08 16:44:24
● 2026-11-12 00:59:36
●A23.145.248.832026-10-08 → 2026-11-12 · 2 obs
● 2026-10-08 16:44:24
● 2026-11-12 00:59:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesc.nic.courses, x.nic.courses, a.nic.courses, z.nic.courses...12 records
rubybison.coursesaliza.ns.cloudflare.com, coby.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.55

NS records: aliza.ns.cloudflare.com, coby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubybison.courses (unsigned zone)

⏱️ Timing

Total: 431ms | Queries: -

📄 Records

TypeCountSample Data
A223.145.248.82, 23.145.248.83
NS2aliza.ns.cloudflare.com, coby.ns.cloudflare.com
SOA1aliza.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)

Analysis

IP Addresses

rubybison.courses points to the IP addresses 23.145.248.82 and 23.145.248.83

sky-halo9.casa, nukwbyh.surf, tessakim8888.network plus two other host names have IP numbers in common with rubybison.courses.

Name Servers

Two name servers handle the delegation for rubybison.courses: aliza.ns.cloudflare.com and coby.ns.cloudflare.com.

The name server configuration of rubybison.courses is shared with other domains, for instance atjlhlw.garden, th6d3tg.beer, vps0cp.surf and two others.

There is at least partial name server overlap between rubybison.courses and other domains — russustepan60.workers.dev, phonelookupln96ut23.cfd, ozzjfxan.pages.dev and two more among them.

These name servers frequently co-occur with the name servers gracie.ns.cloudflare.com and marek.ns.cloudflare.com.

Hosts with 6 IP addresses each:

aliza.ns.cloudflare.com resolves to 108.162.194.55, 162.159.38.55 and 172.64.34.55 among others, with 3 other IP addresses in total.

coby.ns.cloudflare.com resolves to 108.162.193.92, 172.64.33.92 and 173.245.59.92 among others, with 3 other IP addresses in total.