ctheory.net - robtex.com
ctheory.net
| DNSSEC | ⚠️ Not signed | ||||||
| NS | auth01.ns.korax.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.8🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | auth02.ns.korax.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.20🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | auth03.ns.korax.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.8🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774454767 | ||||||
rank #4709 in the tld
WOT: SAFE (69/100)
📈 Tranco rank: #664,926
Same first word
Similar names
DNS History
10 records (3 active, 7 former)
●NSauth01.ns.korax.net2015-06-21 → 2026-03-25 · 5 obs
○ 2015-11-03 02:49:32
○ 2017-01-07 20:18:18
● 2026-03-11 21:13:22
● 2026-03-25 16:14:28
●NSauth02.ns.korax.net2015-06-21 → 2026-03-25 · 5 obs
○ 2015-11-03 02:49:32
○ 2017-01-07 20:18:18
● 2026-03-11 21:13:22
● 2026-03-25 16:14:28
●NSauth03.ns.korax.net2015-06-21 → 2026-03-25 · 5 obs
○ 2015-11-03 02:49:32
○ 2017-01-07 20:18:18
● 2026-03-11 21:13:22
● 2026-03-25 16:14:28
○NSns.securenameserver.ca2015-11-03 → 2017-01-07 · 5 obs
● 2015-11-03 02:49:32
● 2017-01-07 20:18:18
○ 2026-03-11 21:13:22
○ 2026-03-25 16:14:28
○NSns1.securenameserver.ca2015-11-03 → 2017-01-07 · 5 obs
● 2015-11-03 02:49:32
● 2017-01-07 20:18:18
○ 2026-03-11 21:13:22
○ 2026-03-25 16:14:28
○NSns2.securenameserver.ca2015-11-03 → 2017-01-07 · 5 obs
● 2015-11-03 02:49:32
● 2017-01-07 20:18:18
○ 2026-03-11 21:13:22
○ 2026-03-25 16:14:28
○MXmailin.korax.net2015-06-21 → 2015-06-21 · 3 obs
○ 2015-11-03 02:49:32
○ 2026-03-25 16:14:28
○MXmx.securemailserver.ca2015-11-03 → 2017-01-07 · 5 obs
● 2015-11-03 02:49:32
● 2017-01-07 20:18:18
○ 2026-03-11 21:13:22
○ 2026-03-25 16:14:28
○A216.201.96.1032017-01-07 → 2017-01-07 · 4 obs
● 2017-01-07 20:18:18
○ 2026-03-11 21:13:22
○ 2026-03-25 16:14:28
○A216.201.96.1042015-06-21 → 2016-04-16 · 4 obs
● 2016-04-16 05:32:48
○ 2017-01-07 20:18:18
○ 2026-03-25 16:14:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ctheory.net | auth01.ns.korax.net, auth02.ns.korax.net, auth03.ns.korax.net | 3 records |
✅ Authoritative Response
Server:172.64.53.20
NS records: auth01.ns.korax.net, auth02.ns.korax.net, auth03.ns.korax.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctheory.net (unsigned zone)
⏱️ Timing
Total: 168ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (auth01.ns.korax.net, auth02.ns.korax.net, auth03.ns.korax.net)
Analysis
Name Servers
The delegation for ctheory.net is handled by three name servers: auth01.ns.korax.net, auth02.ns.korax.net and auth03.ns.korax.net.
ctheory.net at least partially shares name servers with other domains, for instance capam.org, multitaskpartners.com, ontarionutrition.ca, livegiveshoplocal.ca and porterfewell.com.
these name servers are commonly used with ns1.securenameserver.ca, ns2.securenameserver.ca and ns.securenameserver.ca.
Host names sharing a single IP:
auth01.ns.korax.net points to: 172.64.52.8.
auth02.ns.korax.net points to: 172.64.53.20.
auth03.ns.korax.net points to: 172.64.52.8.
Host names pointing to 172.64.52.8: auth01.ns.korax.net and auth03.ns.korax.net.