Website Tools

17 free tools, ready to use

Diagnose a website in seconds: DNS records and propagation, SSL certificates, HTTP headers and redirects, uptime, email authentication and more — plus explainers that turn ping and traceroute output into plain English.

Password GeneratorCreate truly random passwords and easy-to-type passphrases right in your browser. See how strong each one is in bits of entropy and estimated time to crack.Open tool →

Password Strength CheckerSee how long your password would really take to crack. The checker looks for the patterns attackers try first — common passwords, words, keyboard walks, dates — and runs entirely in your browser.Open tool →

DNS LookupQuery a domain's DNS records live from a public resolver of your choice. See every record type at once, with TTLs, mail servers in priority order and email-authentication records highlighted.Open tool →

IP LookupFind out who an IP address belongs to. Enter an IPv4 or IPv6 address — or a domain — to see its network owner, ASN, routing prefix, registry details and reverse DNS.Open tool →

HTTP Header CheckerSee the exact status code and response headers a URL returns, follow its redirects, and get a security-header grade with clear fixes.Open tool →

SSL CheckerTest a site's SSL/TLS certificate in seconds: see when it expires, whether browsers trust it, if it matches the domain, and which TLS versions the server still allows.Open tool →

Redirect CheckerFollow a URL hop by hop and see every redirect's status code, destination, server and timing — plus clear advice on chains, loops and SEO-safe redirect types.Open tool →

HTTP Status Code LookupLook up any HTTP status code to see what it means, why it happens, how to fix it and how it affects SEO — including unofficial codes from Cloudflare, nginx and others.Open tool →

My IP AddressYour public IP address is shown below the moment the page loads, together with your internet provider, approximate location and what your browser reveals about you.Open tool →

DNS Propagation CheckerChanged a DNS record? Ask 19 public DNS resolvers in the US, Europe and Asia at once and see which ones already return the new value.Open tool →

Website Status CheckerFind out in seconds whether a site is up, answering with errors, or down — and why, from DNS through to the server's response.Open tool →

Website Uptime CheckerRun a quick series of checks against a site to see how reliably and how fast it answers right now — handy for spotting intermittent outages and slow spikes.Open tool →

Ping ExplainerBrowsers can't send ping packets, so run ping yourself and paste the result here — we'll chart it and explain exactly what every line means.Open tool →

Traceroute ExplainerRun traceroute on your computer, paste the result, and get a hop-by-hop table with a plain-English read of where delays and timeouts really matter.Open tool →

Reverse DNS LookupTurn IP addresses back into hostnames. We look up each address's PTR record and check that the hostname points back to the same IP — the forward-confirmed reverse DNS test mail servers rely on.Open tool →

Security Headers CheckerFind out which HTTP security headers a site sends, how strong they are and exactly what to add. Every header gets a clear verdict and a copy-ready value, plus config for your server.Open tool →

SPF DMARC DKIM CheckerTest how well a domain is protected against email spoofing. We read its SPF, DKIM, DMARC, MX and BIMI records live, explain every problem and give you the exact DNS records to fix it.Open tool →