24 focused, single-purpose tools for domains, DNS, hosting and website health β every one of them runs instantly in your browser. No signup, no waiting.
Check if a domain name is registered or free.
πView registrar, dates and contact data for any domain.
πFind out exactly how old a domain name is.
πLook up geolocation and ISP info for any IP.
π§Query A, AAAA, MX, TXT, NS and CNAME records.
πVerify a site is serving a valid HTTPS certificate.
πΊοΈDiscover the physical location of a website's server.
βͺοΈTrace redirect chains and final destination URLs.
π¦Inspect response headers sent back by any URL.
πScan a page and flag dead or broken links.
β‘Measure how quickly a page responds and loads.
π’Check right now whether a website is up or down.
πΌοΈCapture a live visual snapshot of any web page.
π€Build a valid robots.txt file for your website.
βFetch and validate an existing robots.txt file.
ποΈCreate an XML sitemap from a list of URLs.
π·οΈGenerate SEO & social meta tags for any page.
π°Get an estimated resale value for a domain name.
π¨Turn text, an emoji or an image into favicon files.
πVerify whether a specific page actually links to your site.
β±οΈBreak down a full page load into DNS, connect, and render stages.
π§Check MX, SPF, DKIM and DMARC records for a domain's email setup.
π§©Detect the CMS, framework and server software behind a website.
πFind the hostname associated with an IP address.