Website monitoring for uptime, APIs, forms, logins and checkout flows, with actionable evidence when something breaks.




Site24x7 is described as 'Website Monitoring, Website Monitoring Service, Server Monitoring' and is a Uptime Monitor service in the network & admin category. There are more than 100 alternatives to Site24x7, not only websites but also apps for a variety of platforms, including SaaS, Linux, Windows and Self-Hosted apps. The best Site24x7 alternative is Better Stack. It's not free, so if you're looking for a free alternative, you could try Better Stack or Uptime Kuma. Other great sites and apps similar to Site24x7 are Tianji, Datadog, Kener and Pingdom.
Website monitoring for uptime, APIs, forms, logins and checkout flows, with actionable evidence when something breaks.




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.

Meet Avospy. Website monitoring, instant alerts, SEO analyzer, spying your competitors... all in one dashboard. Track and analyze errors, website speed, redirects, sitemaps and much more. Try for free, no credit card required.

Low-cost website and mail server monitoring software dedicated to webmasters and system admins. Sends a warning by e-mail or messenger when your website or web-app goes down. Can also trigger other actions by calling URLs.



Checkly provides a better way to monitor your API endpoints and browser click flows from a single, simple dashboard.




Ultralight open source server monitoring agent, written in Rust. Ships CPU, RAM, disk and network metrics over OTLP to any compatible backend.
Monitor APIs, websites, and infrastructure from 12+ global regions. Get alerted in under 50ms when something breaks. Free plan available.




A modern website and API monitoring tool that checks uptime, response times, SSL certificates, and domain expiry, with real-time alerts and a clean dashboard.


Prafero is an all-in-one website intelligence platform for auditing any site in one place. It analyzes SEO, performance, security, DNS, and tech stack signals, then turns them into clear insights so founders, marketers, developers, and agencies can make faster website decisions.




Uptime Monitor by Daiz WebApps is an affordable, easy-to-use website uptime monitoring tool built specifically for Australian small businesses, freelancers, and web agencies.

Semonto is an uptime monitoring app that allows you to keep an eye on your websites, servers and apps 24/7. Get notified when something goes wrong so that you can fix it before anyone notices.



