Instant WHOIS Checker

by Sourdough AI LLC · Tools

Manifest V3 in_app

View in Chrome Web Store Data as of 21 Oct 2026

Instantly check WHOIS data for any website. Get domain owner info, registration dates, and more.

Users

−3 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#158K

#132K among extensions

Version

1.0

updated 15 Mar 2025

Users

monthly, 2 years

Latest, 21 Oct 2026: 19 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 21 Oct 2026: 0 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 Instant WHOIS Checker

Instant WHOIS Checker - View WHOIS Info for any website in Seconds! Need to check a domain's expiration date, registrar, or status? Instant WHOIS Checker gives you fast, one-click WHOIS data for any website you visit. 🔹 Key Features: - Instant WHOIS Lookup – Get registrar details, domain creation date, and more in one click. - Full Domain Insights (Premium Upgrade) – Unlock expiration date, nameservers and more. - No Signup required, pay to view more info – Just install & start checking domains instantly! How It Works: 1️⃣ Visit any website 2️⃣ Click the extension icon 3️⃣ Instantly view WHOIS data for that domain Upgrade to unlock premium insights like registrant country, nameservers, and full WHOIS lookup links! Perfect for: Domain investors, cybersecurity analysts, IT professionals, and anyone curious about who owns a website. Get Instant WHOIS Checker Now – Your One-Click WHOIS Lookup Tool!