critsys.io - dns.ninja
critsys.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:83d5🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::6815:bea🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.11.234Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.131.213🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jim.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b7d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c17d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:217d🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| A | 108.162.193.125🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| A | 172.64.33.125🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| A | 173.245.59.125🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jim.ns.cloudflare.com | ||||||
| NS | naomi.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ad0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0d0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20d0🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| A | 108.162.192.208🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| A | 172.64.32.208🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| A | 173.245.58.208🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | naomi.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.11.234, 172.67.131.213 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:83d5, 2606:4700:3034::6815:bea | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com | ||||||
| SOA | jim.ns.cloudflare.comdns@cloudflare.com serial=2411025233 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1786691232 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSjim.ns.cloudflare.com2026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
●NSnaomi.ns.cloudflare.com2026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
●A104.21.11.2342026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
●A172.67.131.2132026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
●A2606:4700:3033::ac43:83d52026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
●A2606:4700:3034::6815:bea2026-08-13 → 2026-08-14 · 2 obs
● 2026-08-14 08:00:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io | - |
| critsys.io | jim.ns.cloudflare.com, naomi.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.208
NS records: jim.ns.cloudflare.com, naomi.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for critsys.io (unsigned zone)
⏱️ Timing
Total: 427ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.11.234, 172.67.131.213 |
| AAAA | 2 | 2606:4700:3033::ac43:83d5, 2606:4700:3034::6815:bea |
| NS | 2 | jim.ns.cloudflare.com, naomi.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | jim.ns.cloudflare.com dns.cloudflare.com |
Analysis
IP Addresses
critsys.io directs to four IP numbers, which are 104.21.11.234, 172.67.131.213, 2606:4700:3033::ac43:83d5 and 2606:4700:3034::6815:bea.
Among the host names that share IP numbers with critsys.io are stack24delta.digital, richyleocasino.com, instagramgirls.org and two others.
Name Servers
The NS records for critsys.io delegate to jim.ns.cloudflare.com and naomi.ns.cloudflare.com.
critsys.io has the same name server delegation as a number of other domains, such as fernzion.org, jameshughes.info, hostmaza.com and two more.
There is at least partial name server overlap between critsys.io and other domains — health-and-beauty.us, 66666vv.cc, gzjcsf.com and two more among them.
These name servers regularly appear alongside dns1.ednsglobal.net, dns2.ednsglobal.net, dns3.ednsglobal.net and 3 other name servers in NS record sets.
Host names resolving to 6 IP numbers:
jim.ns.cloudflare.com maps to 108.162.193.125, 172.64.33.125, 173.245.59.125 and 3 additional IP addresses.
naomi.ns.cloudflare.com maps to 108.162.192.208, 172.64.32.208, 173.245.58.208 and 3 additional IP addresses.