Million-URL SEO Indexation Optimization

I run a dynamic site that can spin up millions of unique URLs, yet too many of those pages are never making it into Google’s index. Although I already push XML sitemaps through Search Console and handle basic link building, the scale of the project demands deeper technical SEO expertise.

Here’s what I need from you:

• A thorough review of my crawl efficiency so Googlebot spends its budget on the right pages.
• A smarter internal linking strategy that helps surface long-tail URLs and consolidates authority.
• A re-worked sitemap architecture tailored for very large datasets, with clear prioritisation and automated updates that keep pace with new content.

The top pain point is simple: Google chooses not to index a significant share of my URLs even though there have been no recent site changes that would explain the drop-off. I want you to pinpoint why, validate it with log-file or server data, and turn that insight into an actionable roadmap.

Your deliverable should be a concise technical audit covering crawl behaviour, indexation gaps, orphan pages, and duplicate-content traps—followed by a step-by-step implementation plan I can hand to engineering. If you rely on tools like Screaming Frog, Sitebulb, BigQuery log analysis, or custom scripts, feel free to bring them into the process; just document the key findings and recommended fixes.

I’m ready to move quickly and will provide server logs, Search Console exports, and database access (read-only) as needed so you can dive straight into the data. Let’s turn those invisible pages into indexed search assets.