Tools to monitor websites

The problem, in plain words: “I need to monitor hundreds of websites to learn what’s happening and make decisions on them.”

UptimeRobot fits best, with 9 more that fit too.

You want an automated way to monitor hundreds of websites continuously, get alerts on changes/breakages, and use visibility to make decisions.

Updated September 2026.

What fits

UptimeRobotstrong · 90

It’s built for continuous website/API/server uptime monitoring with alerts, multi-location checks, response-time monitoring, and a centralized dashboard so you can quickly decide what to do next when something goes down or degrades.

Best for: Continuously monitoring many sites for availability/performance issues with actionable alerts.

Same approach: Sitepulse 84 · WebMonitors 80 · changedetection.io 79 · Pingify 78 · Service Watch 77 · Instant Know 77 · urlooker 76 · PixelWatch 75 · URL Guard 74

Partly fits

Websites Monitorpartial · 58

It focuses on certificate expiration, security headers, page speed, and SEO via GitHub Actions, which may cover parts of your “what’s happening” but is more specialized than broad multi-site monitoring.

Won’t cover: It’s narrower than full site health/change monitoring across hundreds of sites for both availability and content updates.

dundun-watchpartial · 55

It’s a lightweight self-hosted website monitoring system on Cloudflare Workers, which can fit the continuous monitoring goal, but it’s positioned more for self-hosters than for general decision support at scale.

Won’t cover: It’s mainly positioned as a self-hosted monitoring option rather than a broad hosted monitoring dashboard for many sites.

Kapientpartial · 52

It’s focused on monitoring website issues and generating how-to-fix guidance, which can help you decide what to do next, but it emphasizes repair instructions more than general multi-site monitoring coverage across all the monitoring types.

Won’t cover: It focuses on issue detection plus repair guidance rather than general-purpose monitoring and change detection across all use cases.

Monity.aipartial · 49

It’s an AI website monitoring tool with summaries and alerts for change monitoring, which aligns with continuous visibility, but its positioning centers on specific tracking use cases like availability/booking rather than broad multi-site operations.

Won’t cover: It’s oriented toward AI summaries and certain tracking scenarios rather than a general monitoring suite for hundreds of sites.

Questions

What's the best tool to monitor websites?

UptimeRobot is the strongest match — It’s built for continuous website/API/server uptime monitoring with alerts, multi-location checks, response-time monitoring, and a centralized dashboard so you can quickly decide what to do next when something goes down or degrades.

Is there a tool that fully solves this?

10 products match this closely.

What won't these tools cover?

It’s narrower than full site health/change monitoring across hundreds of sites for both availability and content updates. · It’s mainly positioned as a self-hosted monitoring option rather than a broad hosted monitoring dashboard for many sites. · It focuses on issue detection plus repair guidance rather than general-purpose monitoring and change detection across all use cases. · It’s oriented toward AI summaries and certain tracking scenarios rather than a general monitoring suite for hundreds of sites.

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