We’ve covered the topic of Google remembering stuff for a long long time – yes, they keep an archive of what has changes, when it has changed with virtually every URL on the web. The algorithms do look at history but they don’t all make judgements based on that history.

At the 16:35 mark into the Friday hangout, John Mueller pointed out that fact, again:

Here is the video embed at the start time:

Jennifer Slegg covered it and then asked John Mueller which signals does this apply to. John Mueller responded on Twitter that virtually all of them of them do. He said “they pretty much all do.”

Here is the tweet:

Google has some pretty good memory – don’t forget that. 🙂

Forum discussion at Twitter.