I'm running a test page that has no js and some inlined css that is 2.24 KB. When I run the test on pagespeed everything turns out fine, but when I include an image that is 5.9 KB I get the Prioritize visible content warning.I would like to include the image in my layout but not at the risk of getting that warning from pagespeed.So far, I know that there is 2.24 KB of inlined css and an image that is 5.9 KB which equals to 8.14 KB. The initial congestion window is typically 14.6kB compressed, so I still have 6.46 KB leverage for the visible text. I doubt that the visible text exceeds 6.46 KB though. According to GTmetrix the whole document size is only 15.5KB.Maybe I misunderstood something, but is there a way I can measure the size of the visible content?
Getting Prioritize visible content warning for page size less than 14.6 kb
page speed;google pagespeed