Forbidden access to gitlab site when reviewing multiple documentation pages

Hi guys,

is this a new tunable ? We are finding that attempting to update from 8.10 -> 8.16 brought a number of issues. Attempting to walk through the gitlab site documentation seems to trigger a forbidden access rule. This is preventing us from working through the issues faced.

Is this expected ? and if so is there a better way to access the documentation so we do not fall foul of any such rules ?

Thank you in advance
Pete