Free SSL checker
See when your SSL certificate expires, who issued it, and whether it covers the exact name visitors type. It also checks the certificate chain and the TLS version your server uses.
Check a certificateFree website and domain checking tools
Six quick checks for the things that quietly break a business website: the certificate, the server, the DNS, the domain registration, the registry record and the email routing. Type a domain and you'll have an answer in seconds. No account is needed for your first 5 checks, and you can add your email address for 5 more. Cookies must be enabled.
Free uptime checker
Find out whether a website is reachable right now, which HTTP status code it returns and how long it took to respond. It's a quick way to tell whether a site is down for everyone or just you.
Check a websiteFree DNS checker
Look up a domain's A, AAAA, CNAME, MX, TXT, NS and SOA records in one place. It's useful after a move, when setting up email, or when something has changed that shouldn't have.
Look up DNS recordsFree domain expiry checker
Check when a domain registration runs out, who the registrar is and what status codes apply. Knowing the date is the first step to never losing your domain.
Check a domainFree WHOIS lookup
See a domain's registrar, expiry date, registration dates, status codes and nameservers from public RDAP and WHOIS data. It works for .ie, .co.uk, .com and most other domains.
Look up a domainFree MX record checker
See which mail servers accept email for a domain, and in what order. It's the first thing to check when email stops arriving.
Check MX recordsWant these checks to run automatically?
The Free plan monitors one domain, free forever.