Please bare with me as I am somewhat new to the SEO game. I have a quick question about adding some new pages to my site. I run a real estate site and we recently expanded our coverage areas as our SEO is starting to really come together. The site currently has 3,600 pages indexed in Google covering a full county of cities. Each page on the site is spiderable including all of the separate listings for each city.
Information about the site: The domain is 4 years old and currently has a nice backlink profile. We rank #1-3 for about 50-60 phrases and each listing on the site we have is currently ranking in the top 5 for thousands of longtail keywords.
Here's my question:
We want to expand the site to include all real estate listings in the whole state. Doing this would add about 25,000 new spider-able listings to the site and our longtail searches should increase quite dramatically. Is this something I can do all at once, or should I take it a bit at a time? And, do you have any recommendations on the amount of pages I should add a day?