Bilis vs DebugBear: Core Web Vitals Monitoring Compared
Both tools measure Core Web Vitals from real users. The difference is price, complexity, and what you actually need. Here's an honest comparison.
If you're looking for a tool to monitor your Core Web Vitals with real user data, you've probably come across DebugBear. It's a solid product that combines synthetic testing, CrUX data, and real user monitoring in one platform.
Bilis takes a different approach. Instead of being an all-in-one performance platform, Bilis focuses on one thing: real user Core Web Vitals monitoring. It does this at a fraction of the price, with a fraction of the complexity.
This comparison will help you decide which tool fits your needs and budget.
Quick Comparison
| Bilis | DebugBear | |
|---|---|---|
| RUM price (100K pageviews) | $9/mo | $200/mo |
| Free tier | 10K pageviews/mo | 14-day trial only |
| RUM script size | < 1KB gzipped | 2-3KB gzipped |
| Setup time | ~3 minutes | ~10 minutes |
| Synthetic testing | No | Yes |
| CrUX data | No | Yes |
| Core Web Vitals (LCP, INP, CLS) | All 6 metrics | All 6 metrics |
| Route-level breakdown | Yes | Yes |
| Geographic segmentation | Yes | Yes |
| No cookies / GDPR by default | Yes | Partial |
| Edge-native ingestion | Yes (Cloudflare) | No |
Pricing: The Biggest Difference
This is where the two tools diverge the most.
DebugBear's cheapest plan with real user monitoring is the Startup plan at $200/mo, which includes 500K RUM pageviews alongside synthetic testing and CrUX monitoring [1]. Their entry-level $49/mo plan includes synthetic testing but no RUM data.
Bilis offers real user monitoring starting at $0/mo (10K pageviews) and $9/mo for 100K pageviews on the Pro plan. The Team plan at $29/mo covers 1M pageviews.
For a small team monitoring a site with 100K monthly pageviews, that's $9/mo vs $200/mo. Over a year, you'd save $2,292.
Where DebugBear Wins
DebugBear is a more comprehensive platform. If you need all three types of performance data — synthetic lab tests, Google CrUX field data, and real user monitoring — in one place, DebugBear delivers that.
Specific advantages:
- Synthetic testing: Schedule automated Lighthouse-style tests from 30+ locations. Bilis doesn't do synthetic testing.
- CrUX integration: See Google's own Chrome User Experience Report data alongside your RUM data. Useful for SEO teams tracking what Google sees.
- Detailed waterfall analysis: Deep-dive into individual page loads with request-level waterfalls.
- White-label reports: Useful for agencies reporting to clients.
- Competitor monitoring: Track competitor website performance alongside your own.
If you're an agency managing 20+ client sites and need professional reporting, DebugBear is purpose-built for that workflow.
Where Bilis Wins
Bilis is built for developers and small teams who want real user Core Web Vitals data without the overhead or cost of a full performance platform.
- Price: 10-20x cheaper for equivalent RUM data. $9/mo vs $200/mo for real user monitoring.
- Script size: The Bilis beacon is under 1KB gzipped. DebugBear's RUM snippet is 2-3KB [2]. A performance monitoring tool shouldn't measurably impact the performance it's measuring.
- Simplicity: One script tag, one dashboard with the metrics that matter. No configuration maze, no feature overload.
- Privacy: No cookies, no fingerprinting, no PII collected. GDPR compliant without configuration. You don't need a cookie banner for Bilis.
- Edge-native architecture: Built on Cloudflare Workers with sub-10ms ingestion globally. Data is captured at the edge nearest to your users, not routed to a centralized server.
- Free tier: 10K pageviews/mo, forever. DebugBear offers only a 14-day trial.
- Real Experience Score: A weighted composite metric (RES) that gives you a single number for your site's real-world performance, based on Google's CWV thresholds.
Which One Should You Choose?
Choose Bilis if:
- You primarily want real user Core Web Vitals data
- You're a solo developer, small team, or startup that can't justify $200+/mo for RUM
- You want to get started in under 3 minutes with zero configuration
- Page weight matters to you — you want the lightest possible monitoring script
- You need GDPR compliance without the hassle of cookie consent for your monitoring tool
- You want a permanent free tier, not just a trial period
Choose DebugBear if:
- You need synthetic testing + CrUX + RUM in one platform
- You're an agency needing white-label reports for clients
- You want to monitor competitor website performance
- You need detailed request waterfall analysis for debugging
- Your budget comfortably covers $200+/mo for monitoring
The Bottom Line
DebugBear is a Swiss Army knife for web performance. Bilis is a scalpel for Core Web Vitals.
If you need synthetic testing, CrUX integration, waterfall analysis, and white-label reporting — and your budget supports it — DebugBear is a strong choice.
If what you actually need is to know how real visitors experience your Core Web Vitals, broken down by route, country, and device, and you want that for $9/mo instead of $200 — Bilis was built for you.
References
- DebugBear pricing page. Startup plan with RUM starts at $200/mo for 500K RUM pageviews. debugbear.com
- PageSpeed Matters (2026). "Best Website Speed Testing Tools for Bulk & Real-User Monitoring in 2026." Notes DebugBear's RUM snippet adds ~2-3KB and ~5ms to page load. pagespeedmatters.com