Indexing on google
It's been quite some time and most of the forum content is not getting indexed on google.
How can I make the content index on google as soon as it's posted on the site?
Your question is not related to wpForo it's related to google indexing. wpForo cannot do anything for faster indexing.
All SEO tags works fine on your forum. There is no any issue from the forum side. Just make sure you've submitted your forum sitemap to Google in Google Search Console Tools.
Here is your forum sitemap URL: https://the69forum.com/community/sitemap.xml/
I just noticed that lots of my forum pages are showing the error "HTTPS is invalid and might prevent it from being indexed" on the google search console.
I have also attached a screenshot for your reference.
Maybe this is preventing my pages from getting indexed. How do I fix this issue?