critsci.org - robtex.com
critsci.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3030::ac43:c8a9🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3031::6815:5a85🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.90.133Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.200.169🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ace.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c41🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c341🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2341🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| A | 108.162.195.65🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| A | 162.159.44.65Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| A | 172.64.35.65🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ace.ns.cloudflare.com | ||||||
| NS | laura.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ab7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0b7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20b7🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| A | 108.162.192.183🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| A | 172.64.32.183🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| A | 173.245.58.183🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | laura.ns.cloudflare.com | ||||||
| TXT | v=spf1 -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.90.133, 172.67.200.169 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:c8a9, 2606:4700:3031::6815:5a85 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=47, name=cloudflare-ech.com | ||||||
| SOA | ace.ns.cloudflare.comdns@cloudflare.com serial=2409237390 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1785689604 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSace.ns.cloudflare.com2026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
●NSlaura.ns.cloudflare.com2026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
●A104.21.90.1332026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
●A172.67.200.1692026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
●A2606:4700:3030::ac43:c8a92026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
●A2606:4700:3031::6815:5a852026-07-31 → 2026-08-02 · 2 obs
● 2026-08-02 17:18:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| critsci.org | laura.ns.cloudflare.com, ace.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.65
NS records: laura.ns.cloudflare.com, ace.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 306ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.200.169, 104.21.90.133 |
| AAAA | 2 | 2606:4700:3030::ac43:c8a9, 2606:4700:3031::6815:5a85 |
| NS | 2 | ace.ns.cloudflare.com, laura.ns.cloudflare.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ace.ns.cloudflare.com dns.cloudflare.com |
Analysis
IP Addresses
critsci.org has four IP addresses: 104.21.90.133, 172.67.200.169, 2606:4700:3030::ac43:c8a9 and 2606:4700:3031::6815:5a85.
www.colonycasino.com, psicurity.com, supporteam.io and two other host names share IP numbers with critsci.org.
Name Servers
critsci.org has two authoritative name servers — ace.ns.cloudflare.com and laura.ns.cloudflare.com.
critsci.org uses the same name servers as several other domains — among them freepcgames.net, spinningrat.online, readymadepubquiz.com and two more.
critsci.org has at least partial name server overlap with other domains, such as leak-detection.com, ketanovlaza.click, melarivonexa.com and two others.
It is common to find these name servers alongside the name servers augustus.ns.cloudflare.com, carter.ns.cloudflare.com, paislee.ns.cloudflare.com and two others.
Hostnames that resolve to 6 IP addresses:
ace.ns.cloudflare.com points to 108.162.195.65, 162.159.44.65, 172.64.35.65 and 3 other IP addresses.
laura.ns.cloudflare.com points to 108.162.192.183, 172.64.32.183, 173.245.58.183 and 3 other IP addresses.