Hey all,
I am currently hosting my landing pages on Amazon S3 and Cloudfront using this tutorial - http://stmforum.com/forum/showthread...-Cost-Way-Ever
I have sent traffic to my landing pages and I noticed that in that around 50% of visitors are getting error. Here's the screenshots-


I don't know what exactly is this "error". Can someone explain what these stats mean?
Google is your friend - https://en.wikipedia.org/wiki/List_of_HTTP_status_codes
2xx = success
3xx = redirection (file requested > redirected to another file). This is generally a success.
4xx = failure on client end, e.g. they could not find the file requested, the server denied them access, etc.
5xx = something happening on the server side e.g. server config is boned, connectivity issues, etc.
Most of your errors are 4xx, which means you probably have links/paths somewhere in pages or URLs you are using that are wrong. Check your links. Open your browsers web console and look for errors. If every page has a blah.css file it is trying to retrieve and it doesn't exist, you'll be making a 404 error every single time someone loads the page.
Wild guess - all your 4xx errors are hits to a non-existing favicon.ico.