Core Web Vitals Bulk Checker
Pricing
from $20.00 / 1,000 results
Core Web Vitals Bulk Checker
Bulk-checks Core Web Vitals (LCP, CLS, INP) and Lighthouse performance scores for many URLs at once, using Google's own official PageSpeed Insights API. Mobile and desktop.
Pricing
from $20.00 / 1,000 results
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victor
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Check Core Web Vitals (LCP, CLS, INP) and the Lighthouse performance score for dozens of URLs in one run — using Google's own official PageSpeed Insights API, not a scraper.
Features
- Core Web Vitals checker for LCP, CLS and INP — the exact metrics Google uses as a ranking signal
- Bulk PageSpeed Insights API wrapper — check 50+ URLs in one run instead of one at a time in the browser tool
- Mobile and desktop results side by side, since Google evaluates them separately
- Lab data AND real-user field data (Chrome UX Report) together — lab scores show what Lighthouse measures in a controlled run, field data shows what your actual visitors experience
- Top improvement opportunities ranked by potential time savings for each URL, not just a raw score
- 100% official Google API — no scraping, no ToS risk, no CAPTCHAs to fight
Input
{"urls": ["https://example.com/", "https://example.com/product-page"],"strategies": ["mobile", "desktop"],"googleApiKey": "your-own-google-cloud-api-key"}
You need your own free Google Cloud API key with the PageSpeed Insights API enabled (console.cloud.google.com). Google's free tier gives 25,000 requests/day — you are never charged by us for API usage, which keeps our per-result price low.
Output
{"url": "https://example.com/","strategy": "mobile","performanceScore": 87,"lcpDisplay": "2.1 s","clsDisplay": "0.05","tbtMs": 120,"fieldLcpCategory": "FAST","fieldClsCategory": "FAST","fieldInpCategory": "AVERAGE","topOpportunities": ["Eliminate render-blocking resources", "Properly size images"]}
Who this is for
- SEO agencies auditing a client's entire site for Core Web Vitals before a campaign
- Developers checking performance regressions across many pages after a deploy
- E-commerce teams monitoring their top product/category pages, where a 1-second LCP delay measurably hurts conversion
Pricing
Pay per use — no subscription:
- $0.01 per run
- $0.02 per URL/device result