By: Tom Sydney Kerckhove <syd@cs-syd.eu>
Deduplicate pages by canonical URL for title/description checks When multiple URLs redirect to the same page (e.g. auth-required account pages all redirecting to /auth/login), seocheck stores each as a separate result keyed by the original request URL. Since they all render the same login page, the duplicate title/description check flags them as violations. Fix: use the canonical URL (from <link rel="canonical">) as the page identity when checking for duplicates. Pages that share the same canonical URL are the same page and should not be counted as separate entries.