I have updated my design and uploaded it to my server, but it's showing old content for sometime, new content for sometime. I randomly checked lots of computer, same problem is happening everywhere.
It is hard to provide a definitive answer here due to a shortage of information provided. Perhaps you could provide additional detail in future or a link showing what is happening.
Here are some things you could try:
- Try clearing the cache on individual machines
- Try clearing cache on the server side
- Check that any files that you were expecting to be updated during the upload actually updated i.e. check that upload was successful or if error message was displayed.