21blackjack.app - robtex.com
21blackjack.app
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::ac43:cd2e🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:3a98🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.58.152Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.205.46🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | lucy.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a85🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c085🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2085🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| A | 108.162.192.133🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| A | 172.64.32.133🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| A | 173.245.58.133🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lucy.ns.cloudflare.com | ||||||
| NS | randall.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2ceb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3eb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23eb🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| A | 108.162.195.235🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| A | 162.159.44.235Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| A | 172.64.35.235🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | randall.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.58.152, 172.67.205.46 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:cd2e, 2606:4700:3036::6815:3a98 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=45, name=cloudflare-ech.com | ||||||
| SOA | lucy.ns.cloudflare.comdns@cloudflare.com serial=2411606832 | ||||||
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
🔒 HSTS Preload (+subdomains)
Same first word
21blackjack.co.za |
21blackjack.life |
21blackjack.de |
21blackjack.fr |
21blackjack.app |
21blackjack.club |
21blackjack.cl |
21blackjack.eu |
Similar names
blackjack21.pro |
blackjack21.net |
blackjack21.com |
blackjack21.pl |
blackjack21.be |
blackjack21.de |
blackjack21.cz |
blackjack21.fr |
blackjack21.bet |
blackjack21.ws |
blackjack21.co.za |
DNS History
10 records (6 active, 4 former)
●NSlucy.ns.cloudflare.com2026-08-01 → 2026-08-07 · 2 obs
● 2026-08-07 17:48:24
●NSrandall.ns.cloudflare.com2026-08-01 → 2026-08-07 · 2 obs
● 2026-08-07 17:48:24
●A104.21.58.1522026-08-05 → 2026-08-07 · 3 obs
● 2026-08-05 10:36:56
● 2026-08-07 17:48:24
●A172.67.205.462026-08-05 → 2026-08-07 · 3 obs
● 2026-08-05 10:36:56
● 2026-08-07 17:48:24
○A188.114.96.02026-08-01 → 2026-08-01 · 3 obs
○ 2026-08-05 10:36:56
○ 2026-08-07 17:48:24
○A188.114.97.02026-08-01 → 2026-08-01 · 3 obs
○ 2026-08-05 10:36:56
○ 2026-08-07 17:48:24
●A2606:4700:3032::ac43:cd2e2026-08-05 → 2026-08-07 · 3 obs
● 2026-08-05 10:36:56
● 2026-08-07 17:48:24
●A2606:4700:3036::6815:3a982026-08-05 → 2026-08-07 · 3 obs
● 2026-08-05 10:36:56
● 2026-08-07 17:48:24
○A2a06:98c1:3120::2026-08-01 → 2026-08-01 · 3 obs
○ 2026-08-05 10:36:56
○ 2026-08-07 17:48:24
○A2a06:98c1:3121::2026-08-01 → 2026-08-01 · 3 obs
○ 2026-08-05 10:36:56
○ 2026-08-07 17:48:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| app | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| 21blackjack.app | lucy.ns.cloudflare.com, randall.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.133
NS records: lucy.ns.cloudflare.com, randall.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21blackjack.app (unsigned zone)
⏱️ Timing
Total: 489ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.58.152, 172.67.205.46 |
| AAAA | 2 | 2606:4700:3036::6815:3a98, 2606:4700:3032::ac43:cd2e |
| NS | 2 | lucy.ns.cloudflare.com, randall.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | lucy.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
21blackjack.app directs to four IP numbers, which are 104.21.58.152, 172.67.205.46, 2606:4700:3032::ac43:cd2e and 2606:4700:3036::6815:3a98.
kvdb.tv, linkotex.com, trynitricboost.me and two other host names share IP numbers with 21blackjack.app.
Name Servers
DNS delegation for 21blackjack.app points to two name servers: lucy.ns.cloudflare.com and randall.ns.cloudflare.com.
21blackjack.app uses the same name servers as several other domains — among them sonic77.pro, banglabets.org, klikwin88.pro and two more.
The name servers of 21blackjack.app overlap at least partially with those of other domains — among them concretechone.com.au, my-dictionary.ru, aionrulez.net and two more.
These name servers commonly appear alongside the name servers carrera.ns.cloudflare.com and apollo.ns.cloudflare.com.
Hostnames that resolve to 6 IP addresses:
lucy.ns.cloudflare.com has IP addresses 108.162.192.133, 172.64.32.133 and 173.245.58.133, plus 3 other.
randall.ns.cloudflare.com has IP addresses 108.162.195.235, 162.159.44.235 and 172.64.35.235, plus 3 other.