crf21.com - robtex.com
crf21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:e7f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:9f27🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.14.127Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.159.39🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | darl.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b62🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c162🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2162🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 108.162.193.98🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 172.64.33.98🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 173.245.59.98🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| NS | rosa.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ae4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0e4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20e4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 108.162.192.228🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 172.64.32.228🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 173.245.58.228🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.14.127, 172.67.159.39 | ||||||
| IPv6 hints | 2606:4700:3035::6815:e7f, 2606:4700:3037::ac43:9f27 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com | ||||||
| SOA | darl.ns.cloudflare.comdns@cloudflare.com serial=2401251248 | ||||||
com
| 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=1776078862 | ||||||
Subdomains
Same first word
crf21.com |
Similar names
DNS History
6 records (6 active, 0 former)
●NSdarl.ns.cloudflare.com2026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
●NSrosa.ns.cloudflare.com2026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
●A104.21.14.1272026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
●A172.67.159.392026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
●A2606:4700:3035::6815:e7f2026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
●A2606:4700:3037::ac43:9f272026-04-01 → 2026-04-13 · 2 obs
● 2026-04-13 11:23:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| crf21.com | darl.ns.cloudflare.com, rosa.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:173.245.59.98
NS records: darl.ns.cloudflare.com, rosa.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crf21.com (unsigned zone)
⏱️ Timing
Total: 137ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.14.127, 172.67.159.39 |
| AAAA | 2 | 2606:4700:3037::ac43:9f27, 2606:4700:3035::6815:e7f |
| NS | 2 | darl.ns.cloudflare.com, rosa.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | darl.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (darl.ns.cloudflare.com, darl.ns.cloudflare.com, darl.ns.cloudflare.com...)
Analysis
Hierarchy
crf21.com is parent of max.crf21.com and b99.crf21.com.
IP Addresses
crf21.com points to four IP numbers: 2606:4700:3035::6815:e7f, 2606:4700:3037::ac43:9f27, 104.21.14.127 and 172.67.159.39.
Other host names, for instance stone-mosaic.com, adsinteko.com.br, www.nji.com, cvge.cn and bhajantimes.com share IP numbers with crf21.com.
Name Servers
crf21.com's delegation is to two name servers darl.ns.cloudflare.com and rosa.ns.cloudflare.com.
crf21.com shares the same name server configuration as other domains, such as jiwa2-grandroyal188.space, nuansaslota18.xyz, maldiveshoteldeal.com, sumo777login.click and moyangjepe.xyz.
crf21.com at least partially shares its name servers with other domains, for instance parksandrecreation.net, tekamba.com, cycloon.be, twistedrich.com and softecspa.net.
These name servers are often used together with the name servers rocky.ns.cloudflare.com.
Host names with six IP numbers:
darl.ns.cloudflare.com points to: 2606:4700:58::adf5:3b62, 2803:f800:50::6ca2:c162, 2a06:98c1:50::ac40:2162, 108.162.193.98, 172.64.33.98 and 173.245.59.98.
rosa.ns.cloudflare.com points to: 2606:4700:50::adf5:3ae4, 2803:f800:50::6ca2:c0e4, 2a06:98c1:50::ac40:20e4, 108.162.192.228, 172.64.32.228 and 173.245.58.228.