PreflightSEO

Your site migration is live. Rankings drop. You have no idea which URLs broke, where redirects went wrong, or what changed with your canonicals. By the time Google recrawls your site, the damage is done. What PreflightSEO does PreflightSEO crawls your old and new site side by side, before you go live. It matches every URL and flags the issues that silently kill rankings during migrations: - Broken redirects and redirect chains - Pages that return 404 or 500 on the new site - Changed or missing canonical tags - Unexpected noindex tags - H1 and title tag changes - Pages blocked by robots.txt Who it's for SEO professionals, developers, and agencies who manage site migrations. If you've ever launched a redesign and spent the next three months recovering lost rankings, this tool is for you. How it works 1. Create a project with your old and new base URLs 2. Start a run and let PreflightSEO crawl both sites 3. Review the issues report sorted by severity 4. Fix what matters before go live Export your results as CSV or JSON to share with your team or client. Why we built this Site migrations are one of the highest-risk SEO events. Even careful teams miss things. We built PreflightSEO to make the pre-launch checklist automatic, not manual. Catch SEO regressions in staging. Not in Google Search Console.