Website Performance Regression Monitor Lighthouse Diff & Budge
Pricing
$5.00 / 1,000 completed performance regression checks
Website Performance Regression Monitor Lighthouse Diff & Budge
Monitor Lighthouse performance changes for important pages. Establish an accepted mobile or desktop baseline, then flag confirmed regressions and budget breaches with a second check to reduce false alarms. Tracks Performance, LCP, CLS, TBT, and transfer size.
Pricing
$5.00 / 1,000 completed performance regression checks
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Bin Bin
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Website Performance Regression Monitor — Lighthouse Diff & Budget
Detect whether a website release caused a meaningful Lighthouse performance regression instead of merely reporting today's score.
What it does
- Creates an accepted baseline on the first successful check.
- Compares later mobile or desktop Lighthouse metrics with that accepted baseline.
- Runs only one Lighthouse audit when performance is normal.
- Runs one additional confirmation audit only when a relative threshold or absolute budget is breached.
- Reports
CONFIRMED_REGRESSION,BUDGET_EXCEEDED, orUNSTABLE_RESULTinstead of treating every noisy Lighthouse result as a real incident. - Never rolls the accepted baseline automatically. Use
resetBaseline=trueonly after you intentionally accept a new performance level.
Metrics
Performance score, LCP, CLS, TBT, FCP, Speed Index, total transfer bytes, and script transfer bytes when Lighthouse network-request details are available.
Default relative thresholds
- Performance score drop: 10 points
- LCP: +500 ms and +20%
- TBT: +200 ms and +30%
- CLS: +0.05 with current CLS at least 0.10
- Transfer size: +250 KiB and +25%
Optional absolute budgets can also be supplied for score, LCP, CLS, TBT, and transfer size.
Billing
PPE event: performance-regression-check. One completed URL check charges once even when an internal confirmation audit is required. A failed main audit or failed confirmation audit does not charge.
Target launch price is $0.05 per completed URL check, subject to real Apify Cloud cost validation before publication.
Scope
This Actor is a regression monitor, not a full Lighthouse report viewer, RUM product, CrUX dashboard, AI performance consultant, or legal/SLA guarantee. v0.1 intentionally has no paid third-party API, proxy matrix, notifications, PDF, n8n, MCP, GitHub Action, or standalone web app.
