Albert Wiersch wrote:It's fun to tweak and get as high a score as you can but there's a point where it makes sense to stop and just accept the score you have even if it's not 100.

Tell me about it. I'm doing this every day.

I do have a 99% score on many pages, but the Google Analytics script's 2 hour cache robs me of that final 1%.
Albert Wiersch wrote:I do find the suggestion to use a CDN for static assets interesting. I suppose this is meant to take a load of your server and make it faster and more efficient? I haven't read much about doing that but I don't currently see much need for it for any of my sites. But perhaps it is also meant to make things faster for the end user because some type of optimization or improved routing can occur?
Part of the reasoning is to get around the 6 simultaneous downloads limit that most browsers have. You can DL 6 files from your domain AND the other domain. I use it on our home page, which has a slider, to grab those 6 files from another domain we own, which also has SSL. Of course the dns lookup for that second domain has a little penalty too. This stuff is all visible on the waterfall test with the "document complete" part being the important part (along with when you first see content).
Of course
HTTP/2 will fix that 6 simultaneous download limit for us.