How important is a "page weight" feature to you? It would add up the size of the document and all the linked files that would typically be downloaded to view the page (like images, style sheets, etc).
I don't think people are as concerned about "page weight" as they were in the past when more people used slower connections.
However, I have seen some very badly designed pages that have huge (with regards to bytes - not resolution) images linked to them.
I am considering adding this to CSE HTML Validator v9.0 in conjunction with the link checker.






