Technical Reasons & SolutionsIf a website’s homepage isn’t indexed, it suggests a significant technical problem. If that doesn’t get indexed, then that definitely points to some bigger problem.”Several potential technical issues could be causing this problem:The website might be unreachable from Googlebot. In such cases, Google may need to review the site before re-allowing the homepage to be indexed. Patience Is KeyBoth technical and non-technical issues could prevent a website’s homepage from being indexed in Google. Source: Google Search Off The Record