avcourse.com - dns.ninja
avcourse.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.254.32.3🇺🇸 NAMCHEAP-PH162.254.32.0/24 | ||||||
| PTR | server1.avcourse.com | ||||||
| NS | ns1.avcourse.com ⭐ | ||||||
| A | 162.254.32.3🇺🇸 NAMCHEAP-PH162.254.32.0/24 | ||||||
| PTR | server1.avcourse.com | ||||||
| NS | ns2.avcourse.com | ||||||
| A | 162.254.32.3🇺🇸 NAMCHEAP-PH162.254.32.0/24 | ||||||
| PTR | server1.avcourse.com | ||||||
| MX | avcourse.com ⭐ | ||||||
| A | 162.254.32.3🇺🇸 NAMCHEAP-PH162.254.32.0/24 | ||||||
| PTR | server1.avcourse.com | ||||||
| TXT | v=spf1 +a +mx +ip4:162.254.32.3 ~all | ||||||
| SOA | ns1.avcourse.comneil@murtsell.ca 2026-07-26 #1 | ||||||
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=1786107094 | ||||||
MX for
avcourse.com |
Subdomains
Same first word
avcourse.com |
Similar names
DNS History
15 records (4 active, 11 former)
○NSdns1.namecheaphosting.com2026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
○NSdns2.namecheaphosting.com2026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
●NSns1.avcourse.com2026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 11:03:18
● 2026-08-07 13:04:12
●NSns2.avcourse.com2026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 11:03:18
● 2026-08-07 13:04:12
○NSns47.domaincontrol.com2016-12-14 → 2017-12-07 · 4 obs
● 2017-12-07 06:23:46
○ 2026-02-27 16:33:40
○ 2026-08-07 13:04:12
○NSns48.domaincontrol.com2016-12-14 → 2017-12-07 · 4 obs
● 2017-12-07 06:23:46
○ 2026-02-27 16:33:40
○ 2026-08-07 13:04:12
●MXavcourse.com2026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 11:03:18
● 2026-08-07 13:04:12
○MXmailstore1.secureserver.net2016-12-14 → 2017-12-07 · 4 obs
● 2017-12-07 06:23:46
○ 2026-02-27 16:33:40
○ 2026-08-07 13:04:12
○MXmx1-hosting.jellyfish.systems2026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
○MXmx2-hosting.jellyfish.systems2026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
○MXmx3-hosting.jellyfish.systems2026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
○MXsmtp.secureserver.net2016-12-14 → 2017-12-07 · 4 obs
● 2017-12-07 06:23:46
○ 2026-02-27 16:33:40
○ 2026-08-07 13:04:12
●A162.254.32.32026-03-29 → 2026-08-07 · 3 obs
● 2026-03-29 11:03:18
● 2026-08-07 13:04:12
○A198.187.29.1962026-02-27 → 2026-02-27 · 4 obs
● 2026-02-27 16:33:40
○ 2026-03-29 11:03:18
○ 2026-08-07 13:04:12
○A50.63.202.522016-12-14 → 2017-12-07 · 4 obs
● 2017-12-07 06:23:46
○ 2026-02-27 16:33:40
○ 2026-08-07 13:04:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net... | - |
| avcourse.com | ns1.avcourse.com, ns2.avcourse.com | 2 records |
✅ Authoritative Response
Server:162.254.32.3
NS records: ns1.avcourse.com, ns2.avcourse.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for avcourse.com (unsigned zone)
⏱️ Timing
Total: 199ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.254.32.3 |
| NS | 2 | ns2.avcourse.com, ns1.avcourse.com |
| MX | 1 | avcourse.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:162.254.32.3 ~all |
| SOA | 1 | ns1.avcourse.com neil.murtsell.ca |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.avcourse.com, ns2.avcourse.com)
Analysis
Hierarchy
The domain avcourse.com is parent to server1.avcourse.com, ns1.avcourse.com and ns2.avcourse.com.
Mail Server Role
avcourse.com acts as its own mail server.
IP Addresses
avcourse.com points to a single IP number: 162.254.32.3.
Host names such as server1.avcourse.com, ns1.avcourse.com and ns2.avcourse.com share their IP numbers with avcourse.com.
Name Servers
avcourse.com is delegated to two name servers: ns1.avcourse.com and ns2.avcourse.com.
avcourse.com shares its name server setup with other domains, such as server1.avcourse.com.
ns1.avcourse.com and ns2.avcourse.com both resolve to the same single IP address: 162.254.32.3.
ns1.avcourse.com and ns2.avcourse.com are host names that each point to 162.254.32.3 IP addresses.
Mail Servers
avcourse.com has a single mail server: avcourse.com itself.
avcourse.com resolves to a single IP number: 162.254.32.3.