When choosing an indexing tool, match the solution to your scale. Use Google’s...

https://spencersbestop-eds.image-perth.org/why-your-pages-get-crawled-but-not-indexed-a-technical-seo-guide

When choosing an indexing tool, match the solution to your scale. Use Google’s Indexing API for massive programmatic sites to push updates instantly; it’s free and highly efficient