Free website tools
Point-and-check tools for the questions site owners actually ask. Each one runs a real check and explains the result in plain English — free, and no signup.
Website Down Checker
Is your website down for everyone, or just you?
Is It Down?
A clear up-or-down verdict from outside your network.
Ping Test
Reachability and response time for any website, explained.
SSL Certificate Check
Is the certificate valid, and when does it expire?
DNS Check
Does the domain resolve, and to where?
HTTP Status Check
Status code, redirects and headers at a glance.
Latency Test
Response time, phase by phase — multi-region rolling out.
Website Ping
Ping your website the way visitors reach it — over the web.
Server Ping
Is your server answering from outside its own network?
Response Time Test
How fast your site responds, broken down phase by phase.
Packet Loss Test
Do repeated requests to a site drop or time out?
Port Checker
Are your web ports open and answering?
Domain Health Check
DNS, SSL and response health for a domain in one report.
Beyond one-off checks
Reading rather than checking? Browse the guides for plain-English explainers on outages, DNS, SSL and slow sites.