Using Relevanssi won’t increase the size of your user-visible pages and thus your bandwidth use. That’ll be the same. (Well, using Relevanssi the search results pages may include more results, which will make them larger, but that’s not a significant change, and is well worth it because of the improved user experience.)
In many cases, searching with Relevanssi is somewhat slower than searching with the WordPress default search. Relevanssi does not have any effect on site speed on other pages.
It’s easiest to see the effect Relevanssi has when you install it and give it a go.
Thanks for the reply. I downloaded it and my website seems to be the same speed.
I was wondering is there a way to show the comments in the search results? That was the main reason I downloaded this. Right now, it only shows the posts and pages in the search results. I want it to show the actual comment where the person can click it and it will take them to that exact comment.
For example, if someone commented the word “machine” in a post, I want someone to be able to search “machine” and see that comment with the word in the search results, and have it take them to the exact comment. My blog posts have hundreds of comments with people asking the same questions everyday so I need this option to take people directly to the comment.
Is this possible?
No, this is not possible (well, it might be possible, but at least it’s not easy). Relevanssi doesn’t index the comments as separate entities, but instead indexes the comment content as part of the post. This is because Relevanssi works on posts, and comments are not posts.
One approach could be to go through the comments of each post on the search results page, and find those comments where the search terms can be found, and then you could list direct links to those comments under the main post in the search results page.
