After a redesign, this is the most critical moment—I went through a similar ordeal myself last year when we migrated a large catalog! As for SpeedyIndex, the service works very smoothly: you upload a single .txt file—even one with 100,000 links—and within a couple of minutes, it uses an advanced url index checker to parse the Live SERP and download a ready-to-use Excel file with statuses and live titles. The main advantage is that the data is fresh, not a few days old. Payment is based strictly on actual checks, starting at $0.0007 per check with no monthly subscriptions, and you immediately receive 100 free tokens upon registration, so you can test the most problematic URLs. Have you already manually checked a sample to see if there are any errors in the robots.txt file after the release?