Hello, I need some insight in how SEO works for online auction sites with 1 million pages. Anyone here have any expertise on this field? The questions i have: 1.Is there any general advice to give regarding indexation for such a huge site. 2. Is it beneficial to add rich snippets? 3. Should you put any effort in optimizing images for a site on this scale? 4. What can or should be automated in the CMS and how can you do this? Thankful for any answers.