Lookup is a lightweight browser extension that gives you instant, in-depth insights into any website you visit. Lookup – The Ultimate Website Profiler Extension for Chrome Ever wondered what’s really behind a website? With Lookup, you can uncover the full story in seconds. Lookup is a lightweight Chrome extension for website analysis that instantly reveals critical details about any site you visit. Whether you’re a developer debugging DNS records, a marketer researching competitors, a sales professional searching for emails, or simply a curious explorer, Lookup puts powerful insights at your fingertips. With just one click, Lookup gives you a clear, organized view of technologies, hosting, DNS, domain history, ownership, IP data, and more — all without leaving the page. 🔎 What You Can Discover with Lookup Browser Extension

Website Technologies Checker Find out what a website is built with. Lookup detects the CMS, frameworks, analytics tools, plugins, libraries, and scripts running on a site. Identify competitors’ stacks and spot marketing and tracking tools. Discover plugins, themes, and integrations instantly.
Email Finder Extension Need to reach the right contact? Lookup helps you uncover business and generic email addresses linked to a domain — including ones that tools like Hunter.io often miss. Find contact@, hello@, support@, Gmail addresses, and more. Save hours in sales prospecting and outreach.
Domain Age & Expiration Checker Quickly verify how old a domain is and when it expires. Spot new vs. established websites. Check credibility before doing business.
WHOIS Lookup Tool Access domain registration details directly in your browser. See ownership info (where available) and registrar details. Check renewal and expiration data.
IP Lookup & Geolocation Reveal the server IP address and hosting location behind a site. Identify hosting providers and check server geolocation. Use for debugging or competitor analysis.
DNS Records Checker Explore detailed DNS records for any domain. Nameservers, MX (Mail) records A records, CNAME, TXT, and more Perfect for developers and IT teams troubleshooting DNS or email setups.

👩‍💻 Who Can Use Lookup? Developers & IT Teams – Debug hosting, DNS, and SSL configurations without external tools. Marketers & SEOs – Research competitor websites, check domain age, and verify authority. Sales & Outreach Professionals – Find emails fast and qualify leads with domain insights. Researchers, Analysts & Curious Explorers – Satisfy your curiosity by uncovering what powers any site. 🚀 Why Choose Lookup Over Other Tools? Instead of juggling multiple tools, Lookup is the perfect alternative to WhatRuns, Wappalyzer, BuiltWith, Hunter.io, and standalone WHOIS or DNS lookup services - all consolidated into one lightweight Chrome extension. Lookup vs. Competitors: ✅ More coverage than WhatRuns or Wappalyzer. ✅ Easier to use than Buitwith. ✅ Finds emails that Hunter.io often misses. ✅ 100% free and privacy-friendly. 💡 Why Now? Websites are more complex than ever, and people need instant website analysis tools that don’t slow them down. In today’s world of sales, SEO, and development, knowing what’s behind a website isn’t optional — it’s essential. ⭐ Key Benefits at a Glance One-click insights – No coding or complex searches required. All-in-one website profiler – Technologies, domain data, DNS, IP, SSL, and emails in one place. Faster prospecting – Find emails instantly for outreach and lead generation. Website credibility check – Verify domain age, ownership, and security at a glance. Lightweight design – Runs smoothly with zero bloat, so you stay productive. 🛠 Example Use Cases Sales: Before cold emailing, check if a site is real, find the right contact email, and confirm business legitimacy. Marketing: Spy on competitors’ tools — see what ads, analytics, or CMS they use. Tech: Diagnose DNS or hosting issues in seconds. Security: Check if a site is using SSL and identify risky domains. Research: Instantly uncover what powers any website you come across. ✅ Try Lookup Today Uncover the technologies, emails, domain history, DNS, and IP details behind any website in seconds. Lookup is the all-in-one website profiler Chrome extension trusted by developers, marketers, SEOs, sales teams, and researchers worldwide. Install Lookup today — and see the web differently.