What is a parity crawl in SEO?

A parity crawl is when you crawl, analyze, and compare different versions of a website to ensure consistency or equivalence. Parity crawls can help SEO teams get a fuller picture of how their website behaves and performs across different devices, website versions, or between staging and live sites. Types of parity crawls you may want to run: Mobile vs. desktop parity crawl Staging vs. live site parity crawl User agent parity crawl Language or geolocation parity crawl When should you run a parity crawl? When comparing the crawls, you may want to check elements of your website’s health and performance such as: Checking that content renders consistently across platforms or devices Functionality is equivalent across different device types UX is optimized for both mobile and desktop Load time analysis across device types Checking the live site matches the staging site post-update or post- website migration

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