A single wildcard redirect rule can silently kill your best-ranking pages

When websites migrate content, developers often use wildcard redirect rules to handle hundreds of old URLs in one line, but this shortcut can unintentionally capture live, high-performing pages. A 301 redirect signals to Google that a move is permanent, causing it to drop the old URL from its index and transfer its ranking to the destination page within weeks. Because the redirect technically succeeds and returns a valid response, standard monitoring tools show no errors, making the problem invisible until traffic or sales drop noticeably. The core issue is that wildcard patterns match URLs by shape alone, not by whether the target page is still active or valuable. Developers are advised to write more precise redirect rules and use command-line tools to verify which URLs a rule captures before deploying it to a live site.