Worklog for task "Preserve and Improve SEO During Migration"

Progress as of 09/30/2026

SEO preparation is largely complete.

• Compiled a registry of all 4,809 documents, not just URLs from the sitemap.
• For the documents, URIs, IDs, templates, classes, publication status, access restrictions, SEO data, content sources, and migration decisions have been recorded.
• 4,553 documents are designated for preservation of URLs/data and a new representation.
• 166 unpublished documents must not be published automatically.
• 66 published modWebLink documents must be preserved as redirects.
• Analyzed 728 historical URIs: 39 require preservation as historical 301 redirects, 6 lead to non-public targets, and 403 errors along with the old payment route have been separately identified.
• Discovered 5 self-redirects and a URI conflict between a draft and a published document.
• Executed 835 control GET requests; 35 HTTP 200 responses containing a fatal PHP error inside the response body were separately noted.
• Mapped 497 sitemap URLs and identified problematic/special addresses.
• The new HAIH already features SSR fallback, title, description, canonical, and Open Graph tags, while errors are set to noindex. The canonical URL is built using https://balldecor.ru based on the saved URI.

Remaining tasks: implement the redirect map, modWebLink, and historical redirects; connect the metaTitle/metaDescription TVs; finalize indexability/ACL rules; migrate the sitemap, robots, and structured data; perform a full crawl of the new version and a post-release SEO check.