The best free alternative to Pingdom is Better Uptime. If that doesn't suit you, our users have ranked more than 100 alternatives to Pingdom and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Pingdom are Freshping (Free), UptimeRobot (Freemium), StatusCake (Freemium) and PHP Server Monitor (Free, Open Source).
Botnbot is an open source uptime and front-end performance monitoring. When your site is down, Botnbot can notify you by email, slack, or web push notification. All your downtimes are kept with a capture of the response data. You can also keep track of all Lighthouse scores.
Pinger Man is a modern platform to monitor Uptime of Websites and Applications. It supports notification via Email, SMS and Web Hooks. Users can also showcase the uptime of their services using Public Status Pages.
Downdetector monitors over 3,000 services in 25 countries including telecommunication outages (internet, phone and TV service), online banking problems, websites that go down and apps that aren’t working.
Raileo makes it easy to monitor your website downtime, SSL expiry, website performance, SEO and a lot more. Uptime Monitoring Downtime can occur anytime for whatever reason. With the help of Raileo uptime monitoring, get alerted whenever downtime happens to your website.
Turn downtime into happy customers. The complete system status platform: incident management and system monitoring in one. Bring transparency to your users with beautiful, customizable status pages hosted securely external from your infrastructure.
Universal, accurate, uptime monitoring, alerting and reporting for all network hardware and software, for high power without high cost. Swift setup, hands-off background operation that's light on your time, your network and your budget.
UptimeLine makes a request to your website every minute to check that it is responding. It shows you your uptime percentage and downtime events, as well as average latency and latency over time. The free plan includes up to 50 monitors.