It's a bit of a tricky one as it may get downvoted / closed, but another approach is to try and avoid asking for the resource and ask something like What is th

It's a bit of a tricky one as it may get downvoted / closed, but another approach is to try and avoid asking for the resource and ask something like What is the specification for X? or What is the name of the specification for X? or Is there a specification that defines the output of X? While most of the answers will likely link to a resource, technically you didn't ask for an offsite resource, however it may be seen as too broad , or still may get closed for asking for offsite resources.