devstack.cz - robtex.com
devstack.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:bc13🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:7e6🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.7.230Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.188.19🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | braelyn.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2661🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c261🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2261🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| A | 108.162.194.97🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| A | 162.159.38.97Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| A | 172.64.34.97🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | braelyn.ns.cloudflare.com | ||||||
| NS | fonzie.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c46🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c346🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2346🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| A | 108.162.195.70🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| A | 162.159.44.70Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| A | 172.64.35.70🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fonzie.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.7.230, 172.67.188.19 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:bc13, 2606:4700:3037::6815:7e6 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=61, name=cloudflare-ech.com | ||||||
| SOA | braelyn.ns.cloudflare.comdns@cloudflare.com serial=2412969318 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1788677245 | ||||||
Same first word
Similar names
Previous names
Next names
devsystem.cz |
devtank.cz |
devtea.cz |
devteam.cz |
devtech.cz |
devterium.cz |
devtest.cz |
devtestsmeny.cz |
devtools.cz |
devul.cz |
devulino.cz |
devun.cz |
devuni.cz |
devweb.cz |
devwp.cz |
devx.cz |
devyard.cz |
devys.cz |
devzone.cz |
dew.cz |
DNS History
6 records (6 active, 0 former)
●NSbraelyn.ns.cloudflare.com2026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
●NSfonzie.ns.cloudflare.com2026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
●A104.21.7.2302026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
●A172.67.188.192026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
●A2606:4700:3031::ac43:bc132026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
●A2606:4700:3037::6815:7e62026-09-04 → 2026-09-06 · 2 obs
● 2026-09-06 07:34:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| devstack.cz | fonzie.ns.cloudflare.com, braelyn.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.70
NS records: fonzie.ns.cloudflare.com, braelyn.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for devstack.cz (unsigned zone)
⏱️ Timing
Total: 1264ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.7.230, 172.67.188.19 |
| AAAA | 2 | 2606:4700:3037::6815:7e6, 2606:4700:3031::ac43:bc13 |
| NS | 2 | braelyn.ns.cloudflare.com, fonzie.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | braelyn.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Analysis
IP Addresses
devstack.cz has four IP addresses: 104.21.7.230, 172.67.188.19, 2606:4700:3031::ac43:bc13 and 2606:4700:3037::6815:7e6.
Additional host names — javatrixel.cfd, roobet-casino.gr.com, lstudio.id and two others — share IP numbers with devstack.cz.
Name Servers
devstack.cz is delegated to two name servers: braelyn.ns.cloudflare.com and fonzie.ns.cloudflare.com.
devstack.cz shares its name server setup with other domains, including tuu.us.com, pokemondeclaye-souilly.fr, hezhan-sanguo.pages.dev and two others.
devstack.cz has at least partial name server overlap with other domains, such as one-business-software.net, gvs3lytad.pages.dev, japlunk.com and two others.
Host names with 6 IP numbers:
braelyn.ns.cloudflare.com resolves to 108.162.194.97, 162.159.38.97, 172.64.34.97 and 3 other IP addresses.
fonzie.ns.cloudflare.com resolves to 108.162.195.70, 162.159.44.70, 172.64.35.70 and 3 other IP addresses.