It is a shock to discover that not everyone can get to your website.
Apparently, some ISPs routinely block websites. Our school website is not available through several ISPs in the UK. The request shows as "connecting" and then page unavailable.
We have come across this before, with rival ISPs within El Salvador not accepting e-mails from each other, but it is worrying that there is this problem in the UK.
Since the request does not show a page saying "not available on this server", I wonder if there is another explanation. Can anyone throw any light on this problem?