Quick DNS analysis of the domain you're viewing, with a single click to open the full report.
Users
280
+17 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
4
0 in 30 days
Store rank
#55K
#46K among extensions
Version
2.0.0
updated 5 Aug 2026
Users
monthly, 3 years
Latest, 15 Oct 2026:280 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 15 Oct 2026:4 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About NS Lookup - DNS Analysis
NS Lookup is a browser extension that performs a quick analysis of the most common DNS entries for the domain you're currently viewing. Right from your toolbar, with a single click.
Click the NS Lookup icon and get an instant summary of the active domain's key DNS records:
- Nameservers - the authoritative servers for the domain
- A / AAAA - the addresses the domain resolves to
- MX - the domain's mail server records
- Registrar - where the domain is registered
- Health - a summary of any errors or warnings found for the domain
Need more depth? A single button opens the complete NS Lookup analysis of the domain, covering glue records, SOA, TXT, mail security (SPF, DKIM, DMARC), web signals (reverse DNS / PTR, ASN), and propagation across public resolvers.
No account needed. The extension reads the current domain's hostname only when you click the action and sends it to the NS Lookup API for analysis.
Growth
Window
Users
Change
Ratings
Rating
7 days
+8
+2.9%
0
0.00
30 days
+17
+6.5%
0
0.00
6 months
+58
+26.1%
0
0.00
1 year
−45
−13.8%
0
0.00
Chrome Web Store search rankings
Where NS Lookup - DNS Analysis appears when people search the store, with the 30 day change