Google Search Advocate, John Mueller, was the guest in this 400th episode of SEO 101 on WebmasterRadio.FM. The show started with a solemn nod to the loss of a fellow SEO, Hamlet Batista. Next, John Carcutt and Ross Dunn asked several questions of John Mueller including how to bounce back from the negative repercussions of a Core Algorithm Update, whether inferred links are part of Google’s ranking algorithm, how to improve the overall indexation of pages that were crawled but not indexed, and much more.