Catchpoint alternative
Calibre vs Catchpoint
Built for websites, not networks. Move from one-off WebPageTest runs to ongoing monitoring, with Lighthouse on every synthetic test.
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How Calibre and Catchpoint differ
Updated
| Feature | ||
|---|---|---|
| Real User Monitoring | ||
| Included from | WebPageTest Expert plan | $75 a month, on Starter |
| Chrome UX Report (CrUX) | ||
| Google CrUX data | A snapshot on each WebPageTest result | Every plan, no setup |
| Synthetic Monitoring | ||
| Lighthouse | An extra run in WebPageTest | Every synthetic test |
| Synthetic test history | 13 months on WebPageTest Pro | Kept for the life of your account |
| Plans and pricing | ||
| Published pricing | No longer published | On our pricing page |
| Access and automation | ||
| SAML single sign-on | WebPageTest Expert plan | Self-serve on the $150 Team plan |
| Node.js client | Current version stops working on 1 March 2027 | Node.js API and CLI on every plan |
| Company | ||
| Ownership | Part of LogicMonitor | Independent since 2017 |
| Product updates | WebPageTest agent last released December 2024 | Every release in our changelog |
Calibre and Catchpoint both include
- Scheduled synthetic tests
- Lighthouse audits
- API access
- MCP for coding agents
What’s in Calibre
Real User Monitoring
- LCP, INP, CLS and TTFB from your visitors, plus a UX Rating
- Subparts for LCP, INP and TTFB, so you can see which part is slow
- The element behind each slow LCP, CLS and INP
- Split by page, page group, device, browser, OS, country and city
- Every navigation type, including back/forward cache, prerender and soft navigations
- P50, P75, P95 and P98 for every metric
- Compare each deployment with the one before
- No cookies or localStorage, with optional EU and EEA exclusion
Chrome UX Report (CrUX)
- Google’s Core Web Vitals for your origin and each key page
- Pages found automatically by scanning your site
- History from the day you add a Site, charted up to 24 months
- Pass or fail against Google’s Core Web Vitals assessment
- The share of good, needs improvement and poor visits
- LCP subparts from real Chrome users
- UX Rating by country, device and navigation type
- Rank your site against competitors, with nothing to install
Synthetic Monitoring
- A full Lighthouse audit on every test: Performance, Accessibility, Best Practices and SEO
- 17 test locations, 12 device presets and 14 network speeds
- Hourly, daily or custom schedules, plus tests on demand
- Logged-in pages, with login forms, basic auth, cookies or headers
- Performance budgets on any metric, with email, Slack and webhook alerts
- A speed report in every pull request
- Filmstrip, long tasks and third-party impact for every test
- Results kept for the life of your account
Teams and automation
- SAML single sign-on with SCIM, self-serve on the Team plan
- Enforced SSO, verified domains and passkeys
- Audit log streaming to your SIEM, on the Company plan
- Admin, User and Viewer roles
- CLI, Node.js API and GraphQL API on every plan
- An MCP server for Claude Code, Cursor and other coding agents
- Webhooks, plus Slack, GitHub, Netlify and Zapier integrations
- Export metric history as CSV
Switching from Catchpoint
We’ll help you move
Set it up on a call with our founder, or script it yourself. Either way, your Core Web Vitals history is there from day one.
Set up on a call
Book a call with Ben, Calibre’s founder. We’ll add your Sites, recreate your budgets, install the RUM snippet and connect GitHub and Slack with you.
Book a setup call →Script the setup
Create Sites, pages and Test Profiles from code with the Calibre CLI, Node.js API or GraphQL API. This is useful when you have many Sites to move.
Read the CLI docs →Start with your history
Calibre pulls Google CrUX history as soon as you add a Site. Your Core Web Vitals trends are there from the first day, with no wait to build history.
Learn about CrUX Monitoring →“Calibre delivers the substance behind the statistics. They know the actionability of performance measurement is paramount.”
Built for websites
Lighthouse on every test, with history you keep
Every scheduled synthetic test is a full Lighthouse run, and every result stays for the life of your account.
Catch regressions in pull requests
Calibre runs synthetic tests on each pull request’s preview deployment and posts a speed report in the pull request, before the change ships.
Learn about pull request reviews →Performance budgets on any metric
Set a budget for any synthetic metric, per page and Test Profile. Get an alert by email, Slack or webhook when it’s at risk or exceeded.
Learn about budgets →See the impact of every release
Calibre marks production deploys from GitHub automatically, and compares each release with the one before, for real visitors and in Lighthouse tests.
Learn about deploy tracking →Questions about switching from Catchpoint
Is Calibre a good Catchpoint alternative?
Yes, if what you need to monitor is a website. Catchpoint covers internet, network and application performance across a whole organisation. Calibre focuses on your site: how fast pages load for visitors, how Google rates them, and what changed when they slow down.
What happened to WebPageTest?
Catchpoint bought WebPageTest in 2020 and now runs it inside the Catchpoint portal. LogicMonitor completed its purchase of Catchpoint in December 2025, and WebPageTest’s prices are no longer published. Calibre has been independent, bootstrapped and profitable since 2017.
How is Calibre priced?
From $75 a month with unlimited Sites and URLs, 5,000 Real User Monitoring sessions, CrUX data and 5,000 synthetic tests. Team is $150 a month with 15,000 synthetic tests, 10 seats and SAML single sign-on. Every plan’s price is on our pricing page.
Can I automate Calibre?
Yes. Every plan includes the CLI, the Node.js API and the GraphQL API, so you can run tests from CI, manage Sites and pull data into your own reports. The Calibre MCP server lets Claude Code, Cursor and other coding agents read your monitoring data.
How do I switch from WebPageTest to Calibre?
Add your Sites to Calibre. It finds your key pages, pulls their CrUX data and starts scheduled Lighthouse tests straight away. Then add the RUM snippet, set budgets, and connect GitHub and Slack. Or book a setup call and we’ll do it with you.
Can I try Calibre before switching?
Yes. Start a free 15-day trial, no credit card required, and run Calibre alongside Catchpoint while you decide. Synthetic results will differ a little, since each tool tests from its own locations and devices.
Need help to dial in your new speed system?
Our friendly, knowledgeable team will help you establish a system that works efficiently or answer any questions. We’re here to support you in your web performance journey. Contact support.
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Fast website, happy customers
Start a free 15-day trial, or book a setup call and we’ll move you across.
