Uptime & status pages
Uptime checks, alerting and public status pages.
175 products
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Observability for cloud-scale applications
Free plan
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Free-to-use NGINX monitoring service (retiring January 31, 2026).
Free plan
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Cloud-based log management and analytics service from SolarWinds for aggregating, visuali
Free plan
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Enterprise-class open source observability and monitoring solution for networks, servers,云
Free planOpen source
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Free website and service monitoring with status pages.
Free plan
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Measure the Internet, save the data, and make it universally accessible and useful.
Free planOpen source
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Real-time infrastructure monitoring with per-second metrics, ML anomaly detection and AI‑d
Free planOpen source
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Incident response that starts with answers
Free plan
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Observability and incident response platform combining uptime monitoring, logs, metrics,tr
Free plan
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Test your internet speed and the quality of your DSL, xDSL, cable, optical fiber or satel
Free plan
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Infrastructure Monitoring and Analytics
Free plan
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Network Scanner & Monitoring Tool for Home and Office
Free plan
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Web Performance And Core Web Vitals Monitoring | DebugBear
Free plan
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Digital Experience Management & Observability Platform
Free plan
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Complete network monitoring with zero blind spots.
Free plan
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Beta App Hosting
Free plan
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Get ready for downtime
Free plan
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AI software reliability platform
Free plan
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Monitor, debug, and benchmark your internet infrastructure from a globally distributed set
Free planOpen source
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Monitor, analyze, and react to your visitors in real-time.
Free plan
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Open-source observability platform that unifies session replays, logs, traces, metrics and
Free planOpen source
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Manage WordPress sites from one dashboard.
Free plan
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Best-in-class Digital Experience Monitoring
Free plan
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Cron job monitoring that alerts you when scheduled tasks don't run on time
Free planOpen source
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The quick and simple editor for cron schedule expressions
Free planOpen source
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Tracking website updates, automated and simplified
Free plan
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Enterprise IT infrastructure monitoring platform.
Free planOpen source
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HTML5 internet speed test that runs in any browser.
Free planOpen source
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Error tracking and performance monitoring that just works
Free plan
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Uptime, server and blacklist monitoring in one account.
Free plan
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Compare the speed and uptime of enterprise and commercial DNS services
Free plan
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Full-Stack Monitoring and Observability for Hybrid IT
Free planOpen source
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Open source infrastructure monitoring for networks, servers, cloud and applications
Free planOpen source
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Free internet speed test that checks download, upload, ping and jitter in about 30 seconds
Free plan
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Monitoring made for developers
Free plan
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Website monitoring for uptime, page speed, SSL, domains and servers
Free plan
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Your trusted source for domain and IP intelligence.
Free plan
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Visual web log analyzer
Free planOpen source
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Internet Speed Test by Speedcheck - Test my internet speed
Free plan
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Website change detection, monitoring and alerts
Free plan
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Cloud status monitoring and outage alerts in a unified status page
Free plan
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Free online dead link checking tool that finds broken links on any website in minutes, no
Free plan
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Website and uptime monitoring from 300+ locations with phone call, SMS and Slack alerts.
Free plan
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Australian software development company specialising in network management applications
Free plan
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AI-Ready IT & Network Observability Platform
Free planOpen source
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Full-stack observability platform that detects issues across infrastructure, APM, and RUM,
Free plan
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End-to-end Incident Management and Response Orchestration
Free plan
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Open-Source, Unified Observability for the AI Era
Free planOpen source
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Network monitoring with intuition
Free planOpen source
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Security, performance and monitoring for eCommerce websites, from visit to checkout.
Free plan
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Open-source observability platform built on OpenTelemetry, covering APM, logs, traces, and
Free planOpen source
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Don't waste your time checking if some software is updated. Get Email, Webhook or Slack, a
Free plan
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The active reliability layer for developers & agents
Free plan
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Utilities to control and monitor storage systems using SMART technology
Free planOpen source
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Email deliverability and inbox placement testing platform.
Free plan
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AI-first incident management platform with alerting, on-call management, and status pages
Free plan
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Website health monitoring covering uptime, SSL, DNS, cron jobs, broken links, and more.
Free plan
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Website monitoring with real-browser checks, alerts, and performance reporting
Free plan
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Web tool for site owners to find broken links.
Free plan
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A graphical network monitor for Unix modeled after etherman
Free planOpen source
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OpenTelemetry-native observability platform
Free planOpen source
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Smart dashboards. Total visibility.
Free plan
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Uptime monitoring and status pages for software teams
Free plan
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Free website uptime monitoring with 10 monitors, multi-region alert confirmation, and 3 on
Free plan
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Test Your Connection Quality
Free plan
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Free and open source status page and uptime monitoring.
Free planOpen source
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Broken Link Checker.
Free plan
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Website and server monitoring service.
Free plan
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Website Analytics Software & Live Visitor Insight
Free plan
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See how a site appears to the rest of the world
Free plan
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Open source status page system for communicating downtime
Free planOpen source
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Independent outage monitor showing live user reports, report-volume charts, and permanent
Free plan
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A beacon for cloud operations.
Free plan
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Troubleshoot website, network, and CDN issues for fast resolutions.
Free plan
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Indie apps for macOS and iOS
Free plan
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European uptime monitoring, incident management and hosted status pages
Free plan
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Free online web performance analyzer
Free planOpen source
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Monitor your network with ease.
Free planOpen source
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Email deliverability and marketing tools to test, validate, and optimize email campaigns.
Free plan
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User-focused observability for mobile and web, built on OpenTelemetry
Free plan
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All your automation, centralized and under control.
Free plan
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Cloud load testing tool for websites, web apps, and APIs
Free plan
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Open source tool to monitor your servers and websites.
Free planOpen source
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On-Call, Escalation Policies & Paging Priced Per Server
Free plan
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Free active monitoring tool
Free plan
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Website monitoring that sees what others miss.
Free plan
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Open source monitoring platform with Naemon compatibility and Prometheus integration
Free planOpen source
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Ruby APM & error tracking for Rails — built for developers.
Free plan
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Simple uptime & performance monitoring tool for websites, APIs and web services
Free plan
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Get notified via email when an SSL certificate is close to expiration.
Free plan
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A reporting and monitoring tool to identify pages on your website that are losing traffic,
Free plan
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A dead-man's switch for scheduled workflows.
Free plan
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Graphical Ping Notes
Free plan
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Hosted status pages with integrated website monitoring in one service
Free plan
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Watch the internet. Always.
Free plan
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Website Malware Scanner
Free plan
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Measure brand mentions by ChatGPT, Claude, Gemini, and Perplexity.
Free plan
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webpage monitoring via RSS
Free plan
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Monitor web pages with pinpoint precision. 100% Accurate page change detection with CSS S
Free plan
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Free & Simple website monitoring
Free plan
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The complete lightweight tool for multi-target monitoring and alerting
Free plan
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Easy monitoring for scheduled scripts, cron jobs and batches.
Free plan
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Free website monitoring service to check uptime and performance.
Free plan
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Automatic Web Page Monitoring & Change Detection.
Free plan
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Network diagnostic tool combining ping and traceroute.
Free planOpen source
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Complicated Web Testing on Easy Mode
Free planOpen source
C
Monitor cron jobs, schedule HTTP tasks, route failure alerts, and monitor TLS/SSL
Free plan
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Monitor servers, websites, SSL certificates, and APIs from a single platform.
Free plan
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Website monitoring for the page changes that matter
Free plan
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Assertible: The easiest way to test and monitor web services.
Free plan
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The easiest way to protect and monitor your website
Free plan
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AI-first incident management platform that routes alerts to on-call engineers
Free plan
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Know before your customers do.
Free plan
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Website monitoring and status pages
Free plan
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Catch Silent Failures Before Customers Do
Free plan
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Website change monitoring with AI-written summaries of what changed on tracked pages
Free plan
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Watch websites from your iPhone, iPad, and Mac, follow RSS feeds on iPhone and iPad, or g
Free plan
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Leading monitoring & incident management stack giving you peace of mind
Free plan
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Rendex: Turn HTML, URLs, or Markdown into images and PDFs with one API call.
Free plan
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Visual regression testing for WordPress sites. Catch broken layouts before your clients do
Free plan
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A service for capturing live website screenshots from global locations.
Free plan
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The central hub for all your domain names
Free planOpen source
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Track your internet speed automatically with scheduled tests and configurable history
Free planOpen source
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VoIP & RTC Analyzer
Free planOpen source
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Open-source event tracker tool for tech products that shows critical events in a live feed
Free planOpen source
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A self-hosted homelab dashboard with a drag-and-drop interface for organizing services.
Free planOpen source
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A modern open-source web server with automatic TLS, readable configuration, and built-in
Free planOpen source
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Full-stack performance & reliability testing
Free plan
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Zero code network tracer
Free planOpen source
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find what broke in your AI-built site
Free plan
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DNS Checker, Free DNS, IP & Network Intelligence Tools
Free plan
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Website, API, port, and cron job monitoring with hosted status pages.
Free plan
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Wikipedia edit tracking and vandalism monitoring
Free plan
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Website, Uptime, API, SSL & DNS Monitoring
Free planOpen source
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A dead simple cron job monitoring service.
Free plan
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A Smarter Way to Monitor Your Backups & More
Free plan
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Monitor, share and troubleshoot DNS records
Free plan
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Testing and Production Monitoring for Software Teams
Free plan
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Monitor Domain & SSL Expiration, redirects and HTTP responses with Little Warden
Free plan
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Never let your users see slow Website / App and be top of your SEO using web vitals.
Free plan
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Personal blog and project site of Raphael, a freelance software developer based in the N
Free planOpen source
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See what your visitors see. Uptime monitors say your site is up while visitors see a broke
Free plan
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Get notified the moment any website changes what matters to you
Free plan
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A live dashboard tracking honeypot attacks across multiple protocols.
Free plan
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Set up AWS infrastructure monitoring instantly.
Free plan
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All-in-one alerting, on-call, and incident management.
Free plan
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SSL certificate expiration monitoring and reminders.
Free plan
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Watch your site so you don't have to
Free plan
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OnCall. Simplified. Intelligent alert routing for the DevOps team.
Free plan
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Monitor all your cloud services from one dashboard with EagleStatus
Free plan
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A superior website management tool – uptime monitoring, website checks, security scans, &c
Free plan
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AI-powered load testing platform that explains your results in plain English.
Free plan
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Simple website and API monitoring within Slack.
Free plan
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Website downtime alerts and uptime monitoring.
Free plan
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Watch for APT package updates in Slack
Free plan
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Monitor website changes, get alerts, and archive website history.
Free plan
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Infrastructure Monitoring That Just Works.
Free plan
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Uptime monitoring, hosted status pages and debug tools in one dashboard
Free plan
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Visual network testing utility for running ping, traceroute and IP scan commands through a
Free plan
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Free website uptime monitoring since 2005
Free plan
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Monitor website uptime for free with ServiceUptime
Free plan
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Uptime Monitoring, Status Pages & On-Call | Hyperping
Free plan
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Your pager for Slack.
Free plan
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Automated web intelligence for business
Free plan
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Use this free Host Checker tool to uncover the infrastructure and technology powering any.
Free plan
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Real-Time Vendor Monitoring That Actually Works
Free plan
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Website uptime monitoring with alerts and status pages
Free plan
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Internet Speed Checker | Download Upload Ping
Free plan
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Website Uptime Monitoring and Reporting Tools
Free plan
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Server Monitoring Made Simple
Free planOpen source
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Get alerts before your SSL certificates expire
Free plan
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A lightweight and simple dashboard monitor for Linux
Free planOpen source
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Server and service monitoring done right.
Free plan
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Find the source of network problems
Free plan