linuxupskillchallenge.org - robtex.com
linuxupskillchallenge.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:7::60🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2a06:98c1:58::60🇺🇸 Cloudflare2a06:98c1:58::/48 | ||||||
| A | 162.159.140.98Cloudflare162.159.128.0/19 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.66.0.96🇺🇸 Cloudflare172.66.0.0/22 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.digitalocean.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| A | 172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-52-210.defastlink.net | ||||||
| NS | ns2.digitalocean.com | ||||||
| A | 2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| A | 172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-172-64-53-21.defastlink.net | ||||||
| NS | ns3.digitalocean.com | ||||||
| A | 2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| A | 172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| SOA | ns1.digitalocean.comhostmaster@linuxupskillchallenge.org serial=1728256972 | ||||||
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=1776266269 | ||||||
rank #47850 in the tld
Same first word
linuxupskillchallenge.org |
DNS History
7 records (7 active, 0 former)
●NSns1.digitalocean.com2026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●NSns2.digitalocean.com2026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●NSns3.digitalocean.com2026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●A162.159.140.982026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●A172.66.0.962026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●A2606:4700:7::602026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
●A2a06:98c1:58::602026-02-19 → 2026-04-15 · 2 obs
● 2026-04-15 15:46:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| linuxupskillchallenge.org | ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.49.209
NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linuxupskillchallenge.org (unsigned zone)
⏱️ Timing
Total: 351ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.66.0.96, 162.159.140.98 |
| AAAA | 2 | 2a06:98c1:58::60, 2606:4700:7::60 |
| NS | 3 | ns2.digitalocean.com, ns1.digitalocean.com... |
| SOA | 1 | ns1.digitalocean.com hostmaster.linuxups |
Analysis
IP Addresses
linuxupskillchallenge.org resolves to four IP numbers: 2606:4700:7::60, 2a06:98c1:58::60, 162.159.140.98 and 172.66.0.96.
Other host names such as adamonline.net, country929.com, soccerrivals.com, barss.co and trulifelabs.com share IPs with linuxupskillchallenge.org.
Name Servers
linuxupskillchallenge.org is delegated to three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
linuxupskillchallenge.org at least partially shares name servers with other domains, for instance mobizombie.com, mailcloud1.uk, aelbox.com, cepormx.com and bigtemple.education.
Host ns1.digitalocean.com points to 2606:4700:52::ac40:34d2 and 172.64.52.210; Host ns2.digitalocean.com points to 2606:4700:5a::ac40:3515 and 172.64.53.21; Host ns3.digitalocean.com points to 2606:4700:52::ac40:31d1 and 172.64.49.209.