Some Websites don't load correct and display Source Code or plain html

Since I upgraded to El Capitan some of my websites don't load correctly.

I have tried it on Safari and Chrome and even connected through my Iphone hotspot to rule out any trouble with my ISP.

I have read through so many articles and flushed cookies, browser history and just about everything.

I have updated my Java and yes my OS is the latest and greatest.

I have restarted and even used some terminal commands to flush some other stuff I know nothing about.

If I refresh a few times the page will load eventually.

I am at the point of saying ugly words.

Please help me???

This is a screenshot of what I see but some other sites just show me the source code.