Cache Warmer

Cache Warmer keeps your Magento 2 and Adobe Commerce storefront fast for every visitor — not just the second one. After a cache flush, deployment, or catalog update the first shopper to reach each page normally pays the slow, uncached render. Cache Warmer removes that penalty: it crawls your store as a realistic, cacheable visitor and pre-populates the Full Page Cache (the built-in FPC or Varnish) before real customers arrive, so pages are already hot when shoppers land on them. It runs automatically on a schedule and re-warms pages the moment they are invalidated — especially useful for large catalogs, frequent price and stock updates, and high-traffic launches or sales where a cold cache would otherwise slow the storefront.

The extension adds a dedicated configuration area under Stores → Configuration and its own admin dashboard (cache hit-rate, live server load and KPI cards) plus queue, reports and flush-log grids; it does not change how your storefront looks to shoppers. Every part is configurable: choose which URLs to warm (sitemap, products, categories, CMS, custom CSV, or layered navigation), tune crawl concurrency and throttling, set page priorities, and warm per customer group. It is theme-agnostic (Luma and Hyvä), lightweight, self-contained, and requires no external service.

Features

• Pluggable URL sources — XML sitemap, products, categories, CMS, custom CSV, layered navigation.
• Concurrent crawler with concurrency presets, throttling, request timeout, a system-load ceiling and a max-runtime budget so cron runs never stack.
• Cache hit/miss detection for the built-in FPC and Varnish, with an automatic mode.
• Auto-warm on flush — tag-scoped and full-flush requeue keep pages hot after saves.
• Prioritisation by page type, best-seller popularity and per-rule boost; per customer-group warming via X-Magento-Vary.
• Admin dashboard (hit-rate, live load, KPI cards), queue / reports / flush-log grids with CSV and XML export, rules CRUD, an FPC test page, and CLI commands.