react.courses - robtex.com
react.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 64.239.109.65🇨🇦 Amazon64.239.109.0/24 EC2 Prefix | ||||||
| A | 64.239.109.193🇨🇦 Amazon64.239.109.0/24 EC2 Prefix | ||||||
| NS | ns1.vercel-dns.com ⭐ | ||||||
| A | 2620:4d:4000:6259:7:13:0:1🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns1.p13.nsone.net | ||||||
| A | 198.51.44.13🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns1.p13.nsone.net | ||||||
| NS | ns2.vercel-dns.com | ||||||
| A | 2a00:edc0:6259:7:13::2🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns2.p13.nsone.net | ||||||
| A | 198.51.45.13🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns2.p13.nsone.net | ||||||
| SOA | ns1.vercel-dns.comhostmaster@nsone.net serial=1680710669 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1774258284 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.vercel-dns.com2026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 10:48:38
●NSns2.vercel-dns.com2026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 10:48:38
●A64.239.109.1932026-03-19 → 2026-03-23 · 2 obs
● 2026-03-23 10:48:38
●A64.239.109.652026-03-23 → 2026-03-23 · 3 obs
● 2026-03-23 10:48:36
● 2026-03-23 10:48:38
○A64.239.123.1932026-03-19 → 2026-03-19 · 3 obs
○ 2026-03-23 10:48:36
○ 2026-03-23 10:48:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses... | 12 records |
| react.courses | ns1.vercel-dns.com, ns2.vercel-dns.com | - |
✅ Authoritative Response
Server:198.51.44.13
NS records: ns1.vercel-dns.com, ns2.vercel-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for react.courses (unsigned zone)
⏱️ Timing
Total: 404ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 64.239.109.129, 64.239.123.65 |
| NS | 2 | ns1.vercel-dns.com, ns2.vercel-dns.com |
| SOA | 1 | ns1.vercel-dns.com hostmaster.nsone.net |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.courses, b.nic.courses, c.nic.courses...)
Analysis
IP Addresses
react.courses points to two IP numbers: 64.239.109.65 and 64.239.109.193.
Other host names such as vercel.help, demnetia-project-90061cfa.wml.list.assaf876.asia.listful.com, 2a00-1dc0-cafe--b205-281b.static.host, www.gablesresidencescherrycreek.com and 178-17-175-15.static.host share IPs with react.courses.
Name Servers
Two name servers ns1.vercel-dns.com and ns2.vercel-dns.com handle the delegation for react.courses.
react.courses shares the same name server setup as other domains, for example instapay.pl, gather.us, angeloliwanag.com, vikinghacks.com and smitenexus.com.
react.courses at least partially shares name servers with other domains, for example jasminemassage.co.kr, benjaminhowe.com, praxismarbach.ch, stately.ai and yourfriendstu.com.
Host names with two IP numbers:
ns1.vercel-dns.com points to 2620:4d:4000:6259:7:13:0:1 and 198.51.44.13.
ns2.vercel-dns.com points to 2a00:edc0:6259:7:13::2 and 198.51.45.13.