CoreDash Reviews & Product Details

CoreDash is a Real User Monitoring platform built for Core Web Vitals. The product is shaped around LCP, CLS, and INP, the metrics that move search rankings and conversion rates. You install a lightweight script and CoreDash collects performance data from real visitors on real devices and real networks. Segment by page template, country, device class, connection type, or any custom dimension you add. Compare two date ranges to spot regressions the day they ship instead of the week they tank your CrUX scores. Element level attribution names the exact CSS selector and phase causing each slowdown. LCP is split into TTFB, LOAD_DELAY, LOAD_TIME, and RENDER_DELAY. INP is split into INPUT_DELAY, PROCESSING, and PRESENTATION. CLS shows the shifting element with before and after screenshots. Long Animation Frames data traces INP regressions back to the responsible script. The CWV Insights MCP server is the part most other RUM tools cannot match. It exposes your field data to AI agents through the Model Context Protocol. Claude, Cursor, Windsurf, ChatGPT, or any agent that speaks MCP can query your real user data directly and help you diagnose issues in plain English. Ask why LCP regressed on the product detail template last week and the agent reads the data, pinpoints the bottleneck phase, and names the responsible element. Privacy is built in. Data is stored in the EU, the script runs without consent banners, and visitors stay anonymous by default. CoreDash is built by Arjen Karel, an independent Core Web Vitals consultant with 17 years of web performance experience. The same engine powers performance audits for eBay, Zalando, Nestlé, Adevinta, DPG Media, and Harvard. Paid plans start at $19 per month.