I have a website that serves people around the US. I host the web site from a single web server.
Today, some people have claimed they cannot load my website, and I am wondering how likely this is some sort of internet routing issue or DNS issue.
How would you go about figuring out exactly what the issue is? Preferably, I do not want to ask the users to use ping or nslookup since they mostly run Windows boxes and I don't believe those are installed by default.