# PixelSentry > Meta pixel and Conversions API monitoring for Shopify merchants. Catch silent tracking breakage before it burns your ad spend. PixelSentry is a monitoring service (SaaS) for Shopify merchants who advertise on Meta. It verifies, on a standing schedule, that a store's Meta pixel loads and produces tracking requests, that Meta's Dataset Quality metrics show events being received and matched, and that the Conversions API receive path works end to end. Alerts fire only on confirmed breakage, with evidence attached. ## Canonical site - https://pixel-sentry.com ## Primary public pages - https://pixel-sentry.com/pricing: plans (Watch 49 USD monthly, Pro 99 USD monthly) - https://pixel-sentry.com/blog: guides on Meta pixel health and Shopify tracking - https://pixel-sentry.com/blog/meta-event-match-quality-drop-shopify-fix: Why Is My Meta Event Match Quality Dropping on Shopify - https://pixel-sentry.com/blog/storefront-fires-different-pixel-id-than-dataset: Why does my Shopify storefront fire a different pixel ID than the dataset I monitor - https://pixel-sentry.com/blog/meta-pixel-missing-from-shopify-storefront: Why Is My Meta Pixel Missing From My Shopify Storefront - https://pixel-sentry.com/blog/shopify-optimized-setting-restricting-app-pixels: Why Is the Shopify Optimized Setting Restricting Your Meta Pixel? - https://pixel-sentry.com/blog/how-to-tell-if-your-meta-pixel-is-broken: How to Tell If Your Meta Pixel Is Broken on Shopify - https://pixel-sentry.com/blog/shopify-theme-update-broke-meta-pixel: Why a Shopify Theme Update Can Break Your Meta Pixel - https://pixel-sentry.com/blog/event-match-quality-explained: Event Match Quality on Meta, Explained for Store Owners ## Crawling guidance Public marketing pages (home, pricing, blog) may be crawled and cited. Application surfaces (sign in, onboarding, reports, operations) are private: they carry noindex and must not be cited.