HTTP: Googlebot Indexing Activity
This signature detects media scans by the Googlebot. This is how Google discovers content on the Internet for indexing. This behavior is normal if your organization wants its website indexed by Google. If your organization does not want its website indexed by Google, blocking on this signature will prevent it.
References
URL: https://support.google.com/webmasters/answer/1061943?hl=en
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3