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Website & domain tools

Check your IP address, DNS records, WHOIS, SSL certificates, HTTP headers, redirects and page speed.

What Is My IP AddressYour public IP address is shown above, along with the network it belongs to YouTube Thumbnail DownloaderPaste a YouTube link to get the video’s thumbnail in every available size, up to 1280 ×… WHOIS LookupCheck a domain’s registrar, creation date, expiry date, name servers and status DNS LookupCheck the DNS records of any domain to troubleshoot websites, email and domain transfers SSL Certificate CheckerCheck whether a site’s HTTPS certificate is valid, trusted, covers the right names and… MX Record LookupSee which servers receive email for a domain, and in what order of priority What Is My BrowserFind your browser name and version, operating system and full user agent, ready to… What Is My Screen ResolutionSee your screen resolution, browser viewport size and pixel ratio TXT & SPF Record LookupCheck SPF and other TXT records that control email trust and site verification NS Lookup (Name Servers)Find out where a domain’s DNS is managed by checking its name servers Cloudflare Migration Cutover ChecklistScore Cloudflare readiness before changing a WordPress origin server, DNS records or… DNS Record PlannerBuild a clean DNS migration worksheet for A, CNAME, MX, SPF and DMARC records before… DNS TTL Cutover PlannerPlan when to reduce DNS TTL before a WordPress migration and estimate how much time… Domain Transfer Readiness CheckerCheck whether a domain is operationally ready to transfer between registrars without… Email DNS Authentication CheckerReview pasted SPF and DMARC records for common structural mistakes before a website or… SSL & HTTPS Migration Readiness CheckerReview the main SSL, HTTPS and redirect dependencies before moving a WordPress site to… Web Performance Budget CalculatorCreate a simple planning budget for transferred page weight and request count based on… Website Age CheckerLook up a domain registration date through RDAP and calculate the approximate domain… Website Speed TestTest a public page without a Google API key and review DNS, connection, TLS, TTFB… WordPress Backup Storage CalculatorEstimate backup storage requirements from website size, backup frequency, retention… WordPress Hosting Fit FinderMatch your WordPress workload to a hosting model and provider shortlist using site… WordPress Hosting Requirements CalculatorEstimate a practical hosting tier from monthly traffic, site type and the amount of… WordPress Inode & File Count EstimatorEstimate WordPress file-count pressure before moving to hosting plans that enforce… WordPress Migration Disk Space Headroom CalculatorEstimate temporary disk space needed for backups, archives, extraction and safe… WordPress PHP Memory PlannerEstimate a practical PHP memory-limit starting point for WordPress based on plugin…