[mnbvkhgvmj]

This looks like dupe of https://developers.google.com/web/fundamentals/performance/o...

EDIT: I am not an expert on licensing but it does look like everything is in order from a licensing perspective (the original content is CCA3 and to me it looks like things are credited properly).

[hunvreus]

Indeed. I'm the one who posted it and I had 0 idea.

Should I reach out to an admin to get this removed?

[bscphil]

I don't think it's an issue actually - the author is the same, Addy Osmani. See the contributors on the Github page linked by images.guide.