rubycore.co - dns.ninja
rubycore.co
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759767273 | ||||||
Same first word
Similar names
ourcyber.com |
ourcyber.org |
corebury.co.uk |
ourcyber.net |
corebury.com |
coyurerb.media |
beroucry.workers.dev |
coreruby.com |
Previous names
Next names
DNS History
7 records (7 active, 0 former)
●NSclark.ns.cloudflare.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●NSdell.ns.cloudflare.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●MXalt1.aspmx.l.google.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●MXalt2.aspmx.l.google.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●MXalt3.aspmx.l.google.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●MXalt4.aspmx.l.google.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
●MXaspmx.l.google.com2026-09-01 → 2026-09-26 · 2 obs
● 2026-09-26 17:37:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co | - |
| rubycore.co | dell.ns.cloudflare.com, clark.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.87
NS records: dell.ns.cloudflare.com, clark.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rubycore.co (unsigned zone)
⏱️ Timing
Total: 614ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | clark.ns.cloudflare.com, dell.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 2 | google-site-verification=eeqa2mgByxSES92, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | clark.ns.cloudflare.com dns.cloudflare.c |
Analysis
Name Servers
Two name servers handle the delegation for rubycore.co: clark.ns.cloudflare.com and dell.ns.cloudflare.com.
rubycore.co has the same name server delegation as a number of other domains, such as scaleimpactelite.shop, staffcraftcore.shop, justbookings.shop and two more.
There is at least partial name server overlap between rubycore.co and other domains — semi-massif-chene.be, courthouse.dk, mikototonet.pages.dev and two more among them.
These name servers are routinely deployed together with the name servers tani.ns.cloudflare.com.
Host names resolving to 6 IP numbers:
clark.ns.cloudflare.com resolves to 108.162.193.87, 172.64.33.87 and 173.245.59.87 among others, with 3 other IP addresses in total.
dell.ns.cloudflare.com resolves to 108.162.192.94, 172.64.32.94 and 173.245.58.94 among others, with 3 other IP addresses in total.
Mail Servers
rubycore.co has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
rubycore.co shares at least some of its mail servers with other domains — for example financialbooks.com.ng, meetcircle.app, kurserlebnis.com and two more.
It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.
Hosts with two IP numbers each:
aspmx.l.google.com resolves to two addresses: 64.233.180.26 and 2607:f8b0:4004:c1b::1b.
alt1.aspmx.l.google.com resolves to two addresses: 192.178.234.26 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.