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.
Monitors uptime and availability from 300+ worldwide locations with checks for HTTP, ping, content, SSL, domain expiration, DNSBL blacklists and more. Alerts via email, SMS, calls, messengers, webhooks, and push. Includes public status pages, tools, and REST API.
United Kingdom
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.
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.
United States
India
A robust web application for monitoring website uptime, performance, and SSL certificate expiration. Simple Site Monitor provides an easy-to-use dashboard to track the health of your websites in real-time.
Malta
EU
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.
NetherlandsEU
Klaxon enables reporters and editors to monitor scores of sites and files on the web for newsworthy changes. Get email and Slack notifications when something changes.
Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).
Netweak is a delightful, minimalist monitoring platform that gives you insights on performance and availability for your linux servers & websites.
FranceEU
Track web page changes in any web page daily for free users, every 30 minutes for paid users - no RSS or Atom required. Receive notifications via email, Instant Message, and SMS.
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.
