HTML help needed... Prevent loading from cache

I have a blog that gets updated frequently. However, about 50% of the time, if I just load the page, it loads it from the cache and doesn’t show the update unless I force a hard-refresh.

Is there a line of code that I can insert into the page to force it to load fresh every time and ignore anything that might be in the cache?

You either configure the web-server to send out the correct caching headers, or you can use META tags. There is some information here: