As many of you know, Google recently announced a major change related to how sites show up in mobile search results, beginning on April 21st.
Google’s head of search spam, Matt Cutts, posted a video today explaining the difference in how Google handles 404 and 410 error status codes. Both 404 and 410s are errors for a web page or document not being available, however a 410 is defined as “gone” forever. So 410s are more..
John Lincoln from Ignite Visibility spotted a Google Hangout where Google’s John Mueller confirmed that Google will use URLs or domain names within content that are unlinked, i.e. without an a href attribute, to discover and index new pages of content.