codecourse.net - dns.ninja
codecourse.net
net
| 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=1781474860 | ||||||
Same first word
codecourse.com |
codecourse.net |
codecourse.org |
Similar names
DNS History
16 records (9 active, 7 former)
●NSdns1.p01.nsone.net2026-03-26 → 2026-06-14 · 3 obs
● 2026-03-26 05:53:12
● 2026-06-14 22:18:42
○NSdns1.registrar-servers.com2021-10-30 → 2021-10-30 · 4 obs
● 2021-10-30 12:47:48
○ 2026-03-26 05:53:12
○ 2026-06-14 22:18:42
●NSdns2.p01.nsone.net2026-03-26 → 2026-06-14 · 3 obs
● 2026-03-26 05:53:12
● 2026-06-14 22:18:42
○NSdns2.registrar-servers.com2021-10-30 → 2021-10-30 · 4 obs
● 2021-10-30 12:47:48
○ 2026-03-26 05:53:12
○ 2026-06-14 22:18:42
●NSdns3.p01.nsone.net2026-03-26 → 2026-06-14 · 3 obs
● 2026-03-26 05:53:12
● 2026-06-14 22:18:42
●NSdns4.p01.nsone.net2026-03-26 → 2026-06-14 · 3 obs
● 2026-03-26 05:53:12
● 2026-06-14 22:18:42
○NSns-1000.awsdns-61.net2017-01-03 → 2018-06-17 · 4 obs
● 2018-06-17 16:01:54
○ 2021-10-30 12:47:48
○ 2026-06-14 22:18:42
○NSns-1383.awsdns-44.org2017-01-03 → 2018-06-17 · 4 obs
● 2018-06-17 16:01:54
○ 2021-10-30 12:47:48
○ 2026-06-14 22:18:42
○NSns-1596.awsdns-07.co.uk2017-01-03 → 2018-06-17 · 4 obs
● 2018-06-17 16:01:54
○ 2021-10-30 12:47:48
○ 2026-06-14 22:18:42
○NSns-308.awsdns-38.com2017-01-03 → 2018-06-17 · 4 obs
● 2018-06-17 16:01:54
○ 2021-10-30 12:47:48
○ 2026-06-14 22:18:42
●MXalt1.aspmx.l.google.com2017-01-03 → 2026-06-14 · 2 obs
● 2026-06-14 22:18:42
●MXalt2.aspmx.l.google.com2017-01-03 → 2026-06-14 · 2 obs
● 2026-06-14 22:18:42
●MXalt3.aspmx.l.google.com2017-01-03 → 2026-06-14 · 2 obs
● 2026-06-14 22:18:42
●MXalt4.aspmx.l.google.com2017-01-03 → 2026-06-14 · 2 obs
● 2026-06-14 22:18:42
●MXaspmx.l.google.com2017-01-03 → 2026-06-14 · 2 obs
● 2026-06-14 22:18:42
○A52.201.28.1832017-01-03 → 2018-06-17 · 4 obs
● 2018-06-17 16:01:54
○ 2021-10-30 12:47:48
○ 2026-06-14 22:18:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | l.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net... | - |
| codecourse.net | dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net | 8 records |
✅ Authoritative Response
Server:198.51.45.65
NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codecourse.net (unsigned zone)
⏱️ Timing
Total: 343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | dns1.p01.nsone.net, dns2.p01.nsone.net... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | dns1.p01.nsone.net hostmaster.nsone.net |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (dns1.p01.nsone.net, dns1.p01.nsone.net, dns2.p01.nsone.net...)
Analysis
Name Servers
The authoritative name servers for codecourse.net are dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.
codecourse.net shares at least some of its name servers with other domains, including softsolutions.co.in, wesleyjackson.org, izynga.com and two others.
These name servers are frequently seen alongside ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and 7 other name servers.
The host names dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net each resolve to two IP addresses: dns1.p01.nsone.net resolves to 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1; dns2.p01.nsone.net resolves to 198.51.45.1 and 2a00:edc0:6259:7:1::2; dns3.p01.nsone.net resolves to 198.51.44.65 and 2620:4d:4000:6259:7:1:0:3; dns4.p01.nsone.net resolves to 198.51.45.65 and 2a00:edc0:6259:7:1::4.
Mail Servers
Mail for codecourse.net is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
codecourse.net has at least partial mail server overlap with other domains such as ns500754.ns500731.ns500731.ns500742.ns500671.ns500671.ns500678.ns500678.ns500671.ns500678.ns500666.ns500153.tenderladiesbz.com, ns500758.ns500758.ns500759.ns500759.ns500698.ns500698.ns500698.ns500735.ns500698.ns500698.ns500698.ns500619.ns500698.ns500576.ns500619.ns500576.trackreceptor.com, jfoto.org and two more.
The mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are commonly seen alongside these mail servers.
Hostnames that resolve to two IP addresses:
aspmx.l.google.com resolves to two addresses: 142.250.31.27 and 2607:f8b0:4004:c17::1b.
alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1a.