firstcourse.dev - robtex.com
firstcourse.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.150.1.65🇨🇦 Amazon216.150.1.0/24 EC2 Prefix | ||||||
| A | 216.150.16.193🇨🇦 Amazon216.150.16.0/24 EC2 Prefix | ||||||
| NS | ns1.vercel-dns.com ⭐ | ||||||
| A | 2620:4d:4000:6259:7:13:0:1🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1 | ||||||
| PTR | dns1.p13.nsone.net | ||||||
| A | 198.51.44.13🇺🇸 NSONE198.51.44.0/24 | ||||||
| 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 | ||||||
| PTR | dns2.p13.nsone.net | ||||||
| SOA | ns1.vercel-dns.comhostmaster@nsone.net serial=1772758144 | ||||||
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
7 records (4 active, 3 former)
●NSns1.vercel-dns.com2026-10-19 → 2026-11-10 · 2 obs
● 2026-11-10 08:21:40
●NSns2.vercel-dns.com2026-10-19 → 2026-11-10 · 2 obs
● 2026-11-10 08:21:40
○A216.150.1.12026-10-19 → 2026-10-26 · 5 obs
○ 2026-10-23 08:31:32
● 2026-10-26 11:34:38
○ 2026-11-10 08:21:38
○ 2026-11-10 08:21:40
○A216.150.1.1292026-10-26 → 2026-10-26 · 4 obs
● 2026-10-26 11:34:38
○ 2026-11-10 08:21:38
○ 2026-11-10 08:21:40
●A216.150.1.652026-10-19 → 2026-11-10 · 4 obs
○ 2026-10-23 08:31:32
● 2026-11-10 08:21:38
● 2026-11-10 08:21:40
○A216.150.16.12026-10-23 → 2026-10-23 · 4 obs
● 2026-10-23 08:31:32
○ 2026-10-26 11:34:38
○ 2026-11-10 08:21:40
●A216.150.16.1932026-10-23 → 2026-11-10 · 5 obs
● 2026-10-23 08:31:32
○ 2026-10-26 11:34:38
● 2026-11-10 08:21:38
● 2026-11-10 08:21:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | 10 records |
| firstcourse.dev | 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 firstcourse.dev (unsigned zone)
⏱️ Timing
Total: 786ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 216.150.16.129, 216.150.16.1 |
| NS | 2 | ns1.vercel-dns.com, ns2.vercel-dns.com |
| SOA | 1 | ns1.vercel-dns.com hostmaster.nsone.net |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)
Analysis
IP Addresses
firstcourse.dev directs to two IP numbers, 216.150.1.65 and 216.150.16.193
Among the host names that share IP numbers with firstcourse.dev are yamatotimes.com, cartelcoches.com, hoop-explorer.com and two others.
Name Servers
The NS records for firstcourse.dev delegate to ns1.vercel-dns.com and ns2.vercel-dns.com.
firstcourse.dev has the same name server delegation as a number of other domains, such as gestaorecontrole.com.br, ghasbun.dev, distrubi.ai and two more.
firstcourse.dev and other domains like gcsafoundation.com share at least a portion of their name servers.
ns1.vercel-dns.com resolves to 198.51.44.13 and 2620:4d:4000:6259:7:13:0:1. Likewise, ns2.vercel-dns.com resolves to 198.51.45.13 and 2a00:edc0:6259:7:13::2 — two IP addresses apiece.