vardan-karapetyan edited a comment on issue #1997: URL: https://github.com/apache/incubator-pagespeed-mod/issues/1997#issuecomment-647490065
> @vardan-karapetyan When Pagespeed is on aka url are rewrited your site returns intermitent 404 for resources, getting a blank page for a big amount of secons, this delay maybe considered by Ligthouse as a non response. > The NO_FCP is when Ligthouse don“t receive nothing in an amount of time... >  > > But when all resources get a 200, the PSI works w/ bad scores > >  > > So, I think, you need to assure your site ever returns a 200 in all resources, and make it run as faster you can but my site is loading normally and returns 200 for everything. What should I do in this case?   In all browsers, with both enabled pagespeed and disabled, everything loads well and returns 200 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org