Wheres the traffic jam?
Sometimes, using the internet, you get caught in a traffic jam. The effect you’ll see is very slow access, because you and a zillion other people are all trying to crowd through the same freeway. Or, if it’s bad enough, maybe part of the road is closed off for repairs, and traffic can come to a standstill. When your browser finds that it can’t access the address (called an URL) you’re trying to get to, it tries and tries and tries and then gives up, and tells you it can’t connect. That message might be anything, it might say “too busy, try later” or it might say “site not available”, which sounds like it doesn’t exist any more, but in fact it’s just the traffic jam.