questcourse.com - dns.ninja
questcourse.com
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=1785867024 | ||||||
Same first word
questcourse.com |
Similar names
DNS History
11 records (5 active, 6 former)
●NSns51.domaincontrol.com2026-02-23 → 2026-08-04 · 3 obs
● 2026-02-23 05:37:20
● 2026-08-04 18:33:52
●NSns52.domaincontrol.com2026-02-23 → 2026-08-04 · 3 obs
● 2026-02-23 05:37:20
● 2026-08-04 18:33:52
○NSns73.domaincontrol.com2015-06-12 → 2019-04-19 · 4 obs
● 2019-04-19 16:17:22
○ 2026-02-23 05:37:20
○ 2026-08-04 18:33:52
○NSns74.domaincontrol.com2015-06-12 → 2019-04-19 · 4 obs
● 2019-04-19 16:17:22
○ 2026-02-23 05:37:20
○ 2026-08-04 18:33:52
○MXmailstore1.secureserver.net2015-06-12 → 2019-04-19 · 4 obs
● 2019-04-19 16:17:22
○ 2026-02-23 05:37:20
○ 2026-08-04 18:33:52
●MXquestcourse-com.mail.protection.outlook.com2026-02-23 → 2026-08-04 · 3 obs
● 2026-02-23 05:37:20
● 2026-08-04 18:33:52
○MXsmtp.secureserver.net2015-06-12 → 2019-04-19 · 4 obs
● 2019-04-19 16:17:22
○ 2026-02-23 05:37:20
○ 2026-08-04 18:33:52
●A13.248.243.52026-02-23 → 2026-08-04 · 3 obs
● 2026-02-23 05:37:20
● 2026-08-04 18:33:52
○A160.153.136.32019-04-19 → 2019-04-19 · 4 obs
● 2019-04-19 16:17:22
○ 2026-02-23 05:37:20
○ 2026-08-04 18:33:52
●A76.223.105.2302026-02-23 → 2026-08-04 · 3 obs
● 2026-02-23 05:37:20
● 2026-08-04 18:33:52
○A97.74.42.792015-06-12 → 2016-12-07 · 4 obs
● 2016-12-07 07:45:26
○ 2019-04-19 16:17:22
○ 2026-08-04 18:33:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net... | - |
| questcourse.com | ns51.domaincontrol.com, ns52.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.73.26
NS records: ns51.domaincontrol.com, ns52.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for questcourse.com (unsigned zone)
⏱️ Timing
Total: 183ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.105.230, 13.248.243.5 |
| NS | 2 | ns51.domaincontrol.com, ns52.domaincontrol.com |
| MX | 1 | questcourse-com.mail.protection.outlook. |
| TXT | 2 | NETORGFT12044853.onmicrosoft.com, v=spf1 include:secureserver.net -all |
| SOA | 1 | ns51.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns51.domaincontrol.com, ns51.domaincontrol.com, ns52.domaincontrol.com...)
Analysis
IP Addresses
questcourse.com resolves to the IP addresses 13.248.243.5 and 76.223.105.230
venturemanagment.com, tufianzasegura.com, hrdonedifferent.com and two other host names share IP numbers with questcourse.com.
Name Servers
questcourse.com uses two name servers for its delegation: ns51.domaincontrol.com and ns52.domaincontrol.com.
questcourse.com uses the same name servers as several other domains — among them littleshopofstuffilike.com, gatorgalspecialties.com, worldlibrary.net and two more.
The two host names ns51.domaincontrol.com and ns52.domaincontrol.com each have a pair of IP addresses: ns51.domaincontrol.com has 97.74.105.26 and 2603:5:2192::1a, and ns52.domaincontrol.com has 173.201.73.26 and 2603:5:2292::1a.
Mail Servers
Mail for questcourse.com is handled by a single mail server, questcourse-com.mail.protection.outlook.com.
questcourse-com.mail.protection.outlook.com resolves to 8 IP addresses — 40.93.192.4, 52.101.41.6, 52.101.42.16 and 5 others.