Google has updated the JSON files with the list of IP addresses Googlebot. I believe Google added one new IP6 and one new IP4 IP address to the list. That is, if I am looking at the file correctly.

Back in 2007, Google came up with a mechanism for SEOs or site owners to verify that Googlebot is who it says it is through reverse DNS checks. But now, Google has also decided to publish a list of IP ...