Is Vercel Speed Insights enough for Core Web Vitals monitoring?

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Agencies often turn on Vercel Speed Insights for a Next.js client, see route-level Core Web Vitals, and assume monitoring is “done.” For that Vercel project, the product is genuinely useful. For a book of WordPress, Shopify, Magento, and mixed hosts, it is not enough. Core Web Vitals monitoring means knowing when Largest Contentful Paint, Interaction to Next Paint, or Cumulative Layout Shift moves on the URLs you promised to watch. Host RUM answers that for instrumented Vercel deployments. It does not schedule lab checks across thirty other origins or give you one organisation view for account

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Our structured data named a founder, and the fix was to name nobody

Five sites, five separate repositories, one hand-copied TypeScript file. That file is the only reason a crawler can tell the five domains come from one company rather than being five unrelated sites that link to each other. It has been rewritten three times in three days, and every rewrite was driven by the same rule: the structured data is not allowed to say anything the page does not say. The first shape was the obvious one. A PUBLISHER constant with a name and an @id, a list of the apps, and every site emitting the same publisher identifier.

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ProgrammingDEV Community ·

How to Build an AI Agent from Scratch (It's Just a While Loop)

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ProgrammingDEV Community ·

Building Maliklang V1: An Open-Source Offline Compiler Architecture for Hinglish Logic 🚀

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ProgrammingDEV Community ·

Reading a canvas back doubles its memory: numbers from three engines

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