Your migration is live, but old links lead to errors, published pages have disappeared, or visitors land on the wrong page.

I trace the failure, repair the agreed URLs or routing behavior, and verify the deployed result. This service fits WordPress migrations, headless WordPress/Next.js rebuilds, domain changes and URL restructures.

The work can cover missing redirect mappings, loops and chains, published content returning 404, broken internal links, or error pages incorrectly returning HTTP 200. Relevant canonical and sitemap checks are included around the repaired routes. Each old URL gets a deliberate outcome: its correct page, a relevant replacement or a proper missing-page response.

For a large nutrition site, I reconstructed legacy URLs using Wayback/CDX and Search Console evidence, implemented approved redirect mappings, and validated their destinations. On a headless Next.js/WordPress site, I traced published-page failures to incomplete build-time pagination, coordinated the correction with its developer, and independently verified the release.

I also built wp-migrate-core, published tooling for WordPress URL inventories, redirect artifacts and bounded rebuild verification: https://nikocodes.com/software/wp-migrate-core/

I quote an agreed URL set or underlying repair problem before work starts. You receive implemented corrections, checked results, and change and rollback notes. Acceptance is based on the agreed behavior of the repaired pages and URLs.

The agreed redirects, routing corrections or content/link changes, delivered in your site configuration or codebase and verified after the approved release.

A concise list of affected URLs, their intended outcomes, checked results and any remaining exceptions. Relevant destination, response, internal-link, sitemap and canonical checks are included for the agreed scope.

A record of the files, settings or rules changed, the checks performed, and the available rollback steps. Includes one clarification round on the delivered work.

Scope: Review the affected URLs, source material and access; agree on the repair boundary and acceptance checks.

Trace: Identify whether the failure comes from a missing mapping, absent content, application routing, deployment behavior or conflicting configuration.

Repair: Implement the agreed corrections on staging or a preview where available.

Verify: Check the release against the URL list, confirm the intended statuses and destinations, and deliver the handoff.

Current domain and, where relevant, the former domain.

Examples of broken URLs and the pages they should reach.

Available old sitemaps, URL exports, backups or migration notes. These help but are not all mandatory.

Access to the relevant site, repository, hosting or redirect configuration after the project starts.

A named person who can approve destination mappings and release changes.

Confirmation of who controls deployment and whether a staging environment exists.