Last updated: May 15, 2026
LookupThis performs DNS, WHOIS, SSL, and email diagnostic lookups on publicly available data. We don't collect, store, or log the queries you make. All lookups query public infrastructure in real time and the results are returned directly to your browser.
When you perform a lookup, LookupThis queries public DNS resolvers (Cloudflare 1.1.1.1), RDAP registries, and connects to servers over TLS to inspect certificates. This is the same data anyone can access using command-line tools like dig, whois, or openssl. We don't access any private data, accounts, or systems.
We use Vercel Analytics to understand general usage patterns (page views, tool usage). This data is aggregated and does not identify individual users. We do not use analytics to track specific queries or link activity to individuals.
LookupThis uses Google AdSense to display ads. Google may use cookies to personalize ads based on your browsing activity. You can opt out of personalized advertising through Google's Ad Settings.
LookupThis itself does not set cookies. Google AdSense and Vercel Analytics may set cookies for their respective services. You can manage cookie preferences in your browser settings.
Questions about this policy? Reach us at privacy@lookupth.is.