See how your site stacks up vs Cloudflare Observatory
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Quick Verdict
Cloudflare Observatory is a great free perf-testing tool if you're already on Cloudflare and only need occasional Lighthouse audits + field CWV. It's not a continuous monitoring platform — no uptime alerts, no SEO checks, no security audits, no visual history. Lemwatch is the right choice for teams that need actual ongoing monitoring across all the things that break a website.
Choose Lemwatch if you need:
- Continuous monitoring, not on-demand tests
- Works on any site (not just Cloudflare-proxied)
- Uptime, SEO, security, visual included
- Multi-channel alerts (Slack, email, webhook)
Choose Cloudflare Observatory if you need:
- Already on Cloudflare
- Only need occasional Lighthouse runs
- Want field RUM at zero cost
- Don't need uptime or SEO monitoring
Compare the workflow, not a stale checklist
Product availability, feature names and plan limits change. Use the current documentation for Lemwatch and Cloudflare Observatory to validate the capabilities that matter to your team.
What must the check represent: a public page, an API, or a complete authenticated journey?
Who will configure and own it: a non-technical team, developers, or both?
Which evidence do you need after an alert: request context, a script result, logs, or a customer-facing status?
This page does not treat a feature label as a permanent product fact. Confirm current coverage, implementation requirements and commercial terms with each provider before purchase.
Honest Comparison
Every tool has strengths and weaknesses. Here's an honest look at both.
Pros
- Continuous monitoring, not snapshot tests
- All-in-one: uptime, SEO, security, visual
- Works on any host, not just Cloudflare
- Multi-channel alerts and status pages
- Flat $19/mo Pro for 50 sites
Cons
- Field RUM limited to Chrome CrUX scope
- Not free (Pro tier)
Cloudflare Observatory
Pros
- Free for Cloudflare customers
- Real field RUM data via Cloudflare network
- Built into Cloudflare dashboard
- Lighthouse audits on-demand
Cons
- Only works on Cloudflare-proxied sites
- No continuous uptime monitoring
- No SEO, security, visual, or broken link checks
- No status pages or rich alerting
How to Switch from Cloudflare Observatory
Use this checklist to validate a migration in your own environment.
Export your sites from Cloudflare Observatory
Export or copy the monitored URLs from Cloudflare Observatory using the options available in your account.
Create your free Lemwatch account
Start with the free plan for 10 sites and confirm the checks, limits, and integrations you need.
Import and map your monitors
Add the relevant URLs and configure the checks you want to run for each site.
Rebuild your Cloudflare Observatory alert routing
Configure the notification channels and thresholds available to your plan, then test them against your existing workflow.
Run both workflows in parallel
Compare coverage, alert behaviour, and retained history before deciding whether to change your existing service.
Need help migrating? Email us at support@lemwatch.com
Lemwatch vs Cloudflare Observatory FAQ
Continuous monitoring vs on-demand tests
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Continuous Monitoring on Any Host
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