Choose an indexing tool based on your volume. If you need rapid updates, use...

https://wiki-zine.win/index.php/Why_Does_Google_Sometimes_Index_a_Page_and_Then_Drop_It_Later%3F

Choose an indexing tool based on your volume. If you need rapid updates, use API wrappers to trigger Google’s bot in under two minutes. For bulk link building, fixed-credit services—like $29 for 60 credits—are your best bet