Google’s John Mueller offered advice about the use of Google Sites for SEO, downplaying the usefulness of Google Sites for SEO. Google Sites Pages Not Being IndexedThe person asking the question was concerned because their Google Sites webpages were not getting indexed by Google. Taking a step back, websites created on Google Sites can and do get indexed in Google Search. However, the URLs used in Google Sites are a bit hard to track since the public version can be different from the URL you see when logged in.”Google Sites Not Ideal For SEOMueller continued his answer by downplaying the SEO qualities of Google Sites. Given how popular the “stacking” practice is, it’s a bit ironic that a Googler publicly says that Google Sites are “not ideal for SEO purposes” and recommends looking elsewhere if SEO is a concern.