Pinpoint and solve performance issues in your Ruby, Java, .NET, PHP and Python apps with real user, application and server monitoring.
- Error Logger
- Freemium • Proprietary
- Online

Pinpoint and solve performance issues in your Ruby, Java, .NET, PHP and Python apps with real user, application and server monitoring.

Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.

Find out if a website is down for everyone or just you. Up to the minute outage reports based on user reporting and website analysis tests.

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.

Checkmk is a monitoring tool of servers, applications, networks, cloud, containers, storage, databases, IoT and more. Checkmk is available as Raw Edition, which is 100% pure open source, and as Enterprise Edition with a lot of additional features.

Simple, powerful monitoring that just works. Get peace of mind knowing your sites and APIs are always up, secure, and running fast.

Netweak is a delightful, minimalist monitoring platform that gives you insights on performance and availability for your linux servers & websites.

Venmon is a system resource monitoring and multi-ping tool for Windows. It can monitor system memory, processor, battery life, uptime, idle time, graphic cards, network traffic, event logs, and drives. It uses minimal processing power and memory usage while displaying real-time...

SaaS monitoring tool for linux servers and websites. Think up-time robot but with more features. You can monitor your linux hosts, windows hosts under development.

Website Monitoring, Website Monitoring Service, Server Monitoring.

Monika is a command-line application to monitor every part of your web app using a simple YAML configuration file. Get alert notifications through SMTP, Discord, Slack, WhatsApp, and many more when your site is down but also when it's slow!.

Downtime Cat monitors your website, and if it goes offline, sends you an email so you can fix it fast.

Screpy is a web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. Powered by Lighthouse.

If your infrastructure went down right now, how long would it take for you to know?

OneUptime is an open-source complete observability platform.

We alert you, before your customers do.
OnlineOrNot monitors your websites, web apps, and APIs, letting you know instantly if anything goes wrong.

Xitoring is an innovative monitoring platform (SaaS) for servers. We bring data from your server using our agent (Xitogent) to make sure your server is doing fine and avoid any downtime, performance issues, and increasing your customer’s satisfaction.

GitHub-powered open-source uptime monitor and status page.

Phare is the all-in-one platform that covers everything you need to run high-quality production websites with uptime monitoring, analytics, security, incident management, and alerting.

Monitis is a Cloud monitoring and IT analytics service offering Website Monitoring, Server Monitoring, Network Monitoring, Application Monitoring, Cloud Monitoring, and Custom Monitoring.

Free open-source website monitoring software, easy to set up and use for monitoring web sites. You can monitor single web pages, multiple web pages, pages in sitemap and even your whole web site using spider. You can check HTTP result codes and even contents of the checked pages.

NodePing Server Monitoring and Web Site Monitoring. Simple but powerful Internet service monitoring. Checks as frequent as once a minute.

Status by Broos Action is a lightweight, cost-effective tool designed to help system owners monitor uptime and service health in real time. It offers customizable status pages, incident tracking, and performance analytics.

Monitor your email alerts service and detect that it's stopped working before your users complain.

Statsignal is the simplest and most cost-effective way to monitor your website or server and publish a status page of your system. No plans, pay as you go. Free monitors available.
