New Relic alternative
Calibre vs New Relic
New Relic monitors your applications and infrastructure. Calibre monitors your website, with Real User Monitoring, Google CrUX data and Lighthouse tests for your whole web team.
Free for 15 days. No credit card required.
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How Calibre and New Relic differ
Updated
| Feature | ||
|---|---|---|
| Real User Monitoring | ||
| Session ID storage | localStorage, kept for up to 4 hours | sessionStorage, cleared when the tab closes |
| Chrome UX Report (CrUX) | ||
| Google CrUX data | Not in New Relic’s docs | Every plan, no setup |
| Synthetic Monitoring | ||
| Lighthouse audits | Not in synthetic monitors | Every synthetic test, desktop and mobile |
| Synthetic test history | Kept for 13 months | Kept for the life of your account |
| Plans and pricing | ||
| 10 people using browser monitoring | From $3,490 a month (10 Pro users, billed yearly) | From $150 a month (Team, 10 seats) |
Calibre and New Relic both include
- Real User Monitoring
- RUM element attribution for LCP, CLS and INP
- RUM for single-page apps
- Email, Slack and webhook alerts
- 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 New Relic
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 →“Thanks to detailed page breakdowns and filtering, I’ve found performance issues way deeper into customer journeys than I’ve seen before.”
Built for websites
Catch front-end regressions before release
See what Google sees, test every pull request, and get an alert when a page goes over budget.
Google CrUX data, ready on day one
Add a Site and Calibre finds its key pages and pulls their Chrome UX Report data straight away, then charts up to 24 months of history. No BigQuery, no script to install.
Learn about CrUX Monitoring →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 →Questions about switching from New Relic
Can I use Calibre alongside New Relic?
Yes. Calibre monitors your website: page speed, Core Web Vitals and how Google rates your pages. Keep New Relic for your applications, logs and infrastructure.
Is Calibre a good New Relic Browser alternative?
Yes, if what you need to monitor is a website. Calibre collects Core Web Vitals from your visitors, adds Google CrUX data and runs Lighthouse on every synthetic test, with 10 seats on Team.
How is Calibre priced?
From $75 a month. Team is $150 a month with 10 seats, 10,000 RUM sessions, CrUX data and 15,000 synthetic tests included. Extra seats are $15 a month each, and there are no data ingest charges.
Does Calibre run Lighthouse?
Yes. Every scheduled Calibre test is a full Lighthouse run, with Performance, Accessibility, Best Practices and SEO audits, on whichever device and network profiles you choose.
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.
Can I try Calibre before switching?
Yes. Start a free 15-day trial, no credit card required, and run Calibre alongside New Relic 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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All comparisons
See how Calibre compares with every tool, side by side.
Fast website, happy customers
Start a free 15-day trial, or book a setup call and we’ll move you across.
