404 to 301 Redirect Mapping Tool

Go from a 404 List to a Redirect Map in 3 Steps

1. Provide Your Data: Upload a CSV directly from Google Search Console or paste in your list of 404 URLs. Add your website and sitemap URLs. This gives our tool the sitemap and 404 data it needs to start the mapping process.
2. Start the Analysis: Our system runs a two stage process. First, deterministic logic finds the obvious one-to-one matches with high confidence. Then, for the trickier URLs, our integrated AI scores the topical relevance between the old link and all possible new pages to find the most logical match.
3. Export and Implement: Once the analysis is complete, you can download a clean CSV of your redirect map, ready to implement via your preferred plugin or server configuration. We always recommend testing a small batch first to ensure a smooth deployment.

Guiding Principles for Redirects That Preserve SEO Value

• Prioritise User Intent: A blanket redirect to the homepage might seem easy, but it frustrates users and signals a low-quality fix to search engines. Instead, guide users to the most relevant live page, like a parent category or a similar product to satisfy their original intent and protect your user experience.
• Preserve Page Authority: If a retired URL had valuable backlinks or brought in consistent traffic, its authority is worth preserving. Consider recreating or consolidating its core content onto a relevant, existing page to capture the value of those links and pass it on.
• Ensure a Clean Implementation: Technical mistakes can cause more harm than good. Pay close attention to details like case sensitivity and trailing slashes to avoid creating messy redirect chains, and always test a small sample before deploying the full list.

Why Fixing 404s Pays Back

Fixing 404s is more than just a technical task; it's a direct lever for growth. This process preserves the value of your backlinks, improves how search engines crawl your site, and reduces friction for your users, which measurably improves your conversion rate.

Overwhelmed with a Messy Website Migration?

If you're dealing with thousands of 404s after a site migration, our team can manage the full implementation. We work on our "Prove-then-Pay" model, which means you pay absolutely nothing until we prove a +12% conversion uplift in your own GA4 data.

For SEO Agencies and Consultants

Use our mapping tool to streamline technical SEO and deliver faster results for your clients. For projects that require more hands-on implementation, you can refer them to our team and earn a commission through our official agency affiliate programme.

Frequently Asked Questions (FAQ)