Some Egyptian readers have complained recently that while they could find my new postings on their RSS feeds, they couldn’t see them on the frontpage. This I’m afraid is linked to the transfer of the Arabist blogs to a new host. Below is a message from Scot, on how to solve it…

This is not about ISPs caching content or sites. It’s about ISPs pointing their users to the *old version* of the site - the ISP’s *DNS caches* are stale. The users are getting *fresh* content from the *old* site. No amount of refreshing the browser is going to help.
This is happening because *some* Egyptian ISPs are not flushing their DNS cache. When an Egyptian user connected to one of those ISPs requests the site, their ISPs DNS system sends them to the old IP address, which still hosts the old version of the site.
To solve this: Have the affected users tell us what ISP they use. We will then contact those ISPs and tell them they’re serving stale DNS lookups. If the ISPs flush their DNS cache, the problem will go away.