Use admin acc to add info on site but can't see on site need logout and login again then can se

Hi sir,

I use my admin account login my website http://www.freeinternetguru.com/ and add some info then visit site and press F5 but I can't see what i add or change info.

When I logout and login again, I can see my add info,

this problem is interference me to do my website,

Plz help me, tks you so much.