linuxscreencasts.org - robtex.com
linuxscreencasts.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:2ca3🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:c95b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.44.163Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.201.91🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cass.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a51🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c051🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2051🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| A | 108.162.192.81🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| A | 172.64.32.81🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| A | 173.245.58.81🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cass.ns.cloudflare.com | ||||||
| NS | nitin.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bd7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1d7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21d7🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| A | 108.162.193.215🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| A | 172.64.33.215🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| A | 173.245.59.215🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nitin.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.44.163, 172.67.201.91 | ||||||
| IPv6 hints | 2606:4700:3033::6815:2ca3, 2606:4700:3036::ac43:c95b | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=81, name=cloudflare-ech.com | ||||||
| SOA | cass.ns.cloudflare.comdns@cloudflare.com serial=2402332981 | ||||||
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=1777065152 | ||||||
Same first word
linuxscreencasts.org |
DNS History
6 records (6 active, 0 former)
●NScass.ns.cloudflare.com2026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
●NSnitin.ns.cloudflare.com2026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
●A104.21.44.1632026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
●A172.67.201.912026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
●A2606:4700:3033::6815:2ca32026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
●A2606:4700:3036::ac43:c95b2026-04-15 → 2026-04-24 · 2 obs
● 2026-04-24 21:38:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| linuxscreencasts.org | nitin.ns.cloudflare.com, cass.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.215
NS records: nitin.ns.cloudflare.com, cass.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linuxscreencasts.org (unsigned zone)
⏱️ Timing
Total: 755ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.201.91, 104.21.44.163 |
| AAAA | 2 | 2606:4700:3033::6815:2ca3, 2606:4700:3036::ac43:c95b |
| NS | 2 | cass.ns.cloudflare.com, nitin.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cass.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
linuxscreencasts.org maps to four IP numbers: 2606:4700:3033::6815:2ca3, 2606:4700:3036::ac43:c95b, 104.21.44.163 and 172.67.201.91.
Other host names, for instance www.global-trust.com, inkge.com, bb.show, yellowfish.in and lucentasolutions.com share IP numbers with linuxscreencasts.org.
Name Servers
Two name servers cass.ns.cloudflare.com and nitin.ns.cloudflare.com are delegated to linuxscreencasts.org.
linuxscreencasts.org uses the same name server configuration as other domains, such as books2sell.net, webuzmani.net, gingerzone.net, al-saqr.com and thoitrang79.com.
linuxscreencasts.org at least partially shares name servers with other domains such as bt215.com, sylvanoaks.com, rootjunky.com, jobsmash.com and slcap.org.
These name servers are commonly used with irma.ns.cloudflare.com and daniella.ns.cloudflare.com.
Host names with six IP numbers: Host name cass.ns.cloudflare.com points to 2606:4700:50::adf5:3a51, 2803:f800:50::6ca2:c051, 2a06:98c1:50::ac40:2051, 108.162.192.81, 172.64.32.81 and 173.245.58.81; host name nitin.ns.cloudflare.com points to 2606:4700:58::adf5:3bd7, 2803:f800:50::6ca2:c1d7, 2a06:98c1:50::ac40:21d7, 108.162.193.215, 172.64.33.215 and 173.245.59.215.