For massive sites, leverage Indexing APIs for automated, high-volume...

https://www.list-bookmarks.win/if-you-re-dealing-with-time-sensitive-content-like-job-postings-use-google-s

For massive sites, leverage Indexing APIs for automated, high-volume submissions. For niche link-building campaigns, manual submission or specialized tools—often verifying status in under two minutes—work best. Avoid relying solely on these tools, however