skillbuilder.com - dns.ninja
skillbuilder.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.16.142.136🇺🇸 CCINET216.16.128.0/20 TULS CB TRANSIT | ||||||
| PTR | wsip-216-16-142-136.tu.ok.cox.net | ||||||
| NS | ns19.domaincontrol.com ⭐ | ||||||
| A | 2603:5:21d0::a🇺🇸 GODADDY-DNS2603:5:21d0::/44 | ||||||
| PTR | ns19.domaincontrol.com | ||||||
| A | 97.74.109.10🇺🇸 GODADDY-DNS97.74.108.0/23 | ||||||
| PTR | ns19.domaincontrol.com | ||||||
| NS | ns20.domaincontrol.com | ||||||
| A | 2603:5:22d0::a🇺🇸 GODADDY-DNS2603:5:22d0::/44 | ||||||
| PTR | ns20.domaincontrol.com | ||||||
| A | 173.201.77.10🇺🇸 GODADDY-DNS173.201.76.0/23 | ||||||
| PTR | ns20.domaincontrol.com | ||||||
| MX | skillbuilder-com.mail.protection.outlook.com ⭐ | ||||||
| TXT | google-site-verification=J6dN1j25otoVO6zsbxM0yMFAWq9kTSM_eReKci3ipB8 | ||||||
| TXT | google-site-verification=kRF_umxzAqGr1XRCHwjTHcdzfP6tSn0u27LJ0w_guF0 | ||||||
| TXT | v=spf1 include:secureserver.net -all | ||||||
| TXT | NETORG9337295.onmicrosoft.com | ||||||
| SOA | ns19.domaincontrol.comdns@jomax.net 2023-06-02 #0 | ||||||
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=1781792715 | ||||||
Same first word
skillbuilder.com |
skillbuilder.org |
skillbuilder.io |
skillbuilder.co |
skillbuilder.in |
skillbuilder.aws |
skillbuilder.net |
skillbuilder.ca |
DNS History
7 records (4 active, 3 former)
●NSns19.domaincontrol.com2015-06-22 → 2026-06-18 · 2 obs
● 2026-06-18 14:40:18
●NSns20.domaincontrol.com2015-06-22 → 2026-06-18 · 2 obs
● 2026-06-18 14:40:18
○MXmailstore1.secureserver.net2015-06-22 → 2017-06-23 · 4 obs
● 2017-06-23 16:13:34
○ 2026-03-06 17:11:22
○ 2026-06-18 14:40:18
●MXskillbuilder-com.mail.protection.outlook.com2026-03-06 → 2026-06-18 · 3 obs
● 2026-03-06 17:11:22
● 2026-06-18 14:40:18
○MXsmtp.secureserver.net2015-06-22 → 2017-06-23 · 4 obs
● 2017-06-23 16:13:34
○ 2026-03-06 17:11:22
○ 2026-06-18 14:40:18
●A216.16.142.1362026-03-06 → 2026-06-18 · 3 obs
● 2026-03-06 17:11:22
● 2026-06-18 14:40:18
○A67.214.101.942015-06-22 → 2017-06-23 · 4 obs
● 2017-06-23 16:13:34
○ 2026-03-06 17:11:22
○ 2026-06-18 14:40:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| skillbuilder.com | ns19.domaincontrol.com, ns20.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.77.10
NS records: ns19.domaincontrol.com, ns20.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for skillbuilder.com (unsigned zone)
⏱️ Timing
Total: 968ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.16.142.136 |
| NS | 2 | ns19.domaincontrol.com, ns20.domaincontrol.com |
| MX | 1 | skillbuilder-com.mail.protection.outlook |
| TXT | 4 | google-site-verification=J6dN1j25otoVO6z, google-site-verification=kRF_umxzAqGr1XR... |
| SOA | 1 | ns19.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns19.domaincontrol.com, ns19.domaincontrol.com, ns20.domaincontrol.com...)
Analysis
IP Addresses
skillbuilder.com has exactly one IP address — 216.16.142.136.
There are other host names — wsip-216-16-142-136.tu.ok.cox.net among them — that share IP numbers with skillbuilder.com.
Name Servers
DNS delegation for skillbuilder.com points to two name servers: ns19.domaincontrol.com and ns20.domaincontrol.com.
The name server configuration of skillbuilder.com is shared with other domains, for instance foyai.com, safehavensupportedliving.com, yourcapitallender.com and two others.
ns19.domaincontrol.com directs to 97.74.109.10 and 2603:5:21d0::a. ns20.domaincontrol.com directs to 173.201.77.10 and 2603:5:22d0::a. Each host name carries two IP addresses.
Mail Servers
skillbuilder.com uses one mail server — skillbuilder-com.mail.protection.outlook.com.