Choose your tool based on volume: IndexNow works best for instant updates,...

https://fair-wiki.win/index.php/How_to_Actually_Get_Your_Backlinks_Indexed_(And_Why_Most_SEOs_Fail)

Choose your tool based on volume: IndexNow works best for instant updates, while API-driven services suit high-frequency sites. For small batches, services like LinkBox (offering roughly $29 for 60 credits) are reliable