Apps similar to StablePing include Uptime Kuma, which is free and open source. Other options are Better Stack, UptimeRobot, Pingdom and HetrixTools. There's no shortage of Uptime Monitor Services like StablePing, with more than 100 alternatives for the web, Windows, Linux, iPhone and Mac.
Netthrob runs automated verification checks on your website every three minutes from five different geographies and immediately informs you through Phone, SMS & Email when your site goes down.
The website monitoring service that doesn't suck. Get an email when your website goes down. Statuses are available by email, web, RSS feeds and widgets.
Monitor your websites and APIs from multiple locations around the world and get notified by smart alerts. Get daily, weekly and monthly availability reports along with performance metrics.
Simple to use website monitoring supporing both HTTP, HTTPS and web serivce monitoring service, with email and sms notificataion. Free Sign up!
Proactively monitor your websites and online services. Receive immediate notification when a problem is detected so you can quickly resolve the root cause and prevent potential escalation.
Slovenia
EU
Websites and networks monitoring:
EMCO Ping Monitor is a freeware ping-monitoring tool that checks the hosts availability and the connection quality and sends notifications on the host up/down and other events.
Ukraine
AgentSlug.com is simple but perspective application to monitor your website. For now, you can find there a full featured uptime monitoring tool. However, the app is developed constantly to provide complementary webmaster tools in the nearest future.
Sophisticated Uptime Monitoring for your Apps, DBs, IT systems, and business services. Get pro-active alerts and fix incidents with ease without the noise.
United States
Website performance monitoring displaying the load times for various components of the site. Plans start at $23/mo.
NetherlandsEU
Fluxguard uses Google headless Chrome to monitor entire sites for changes. It provides 3 different levels of change monitoring, pixel change detecting comparing screenshots, code-level comparison of the rendered DOM, and extracted text comparison.
