Not unusual anywhere. It's called throttling.
Originally Posted by saltyrob
After a day of running well, things slow down around 3 to 4 when brats all over the country get home from school and start watching things on YouTube, talking nonsense and playing games.
When mummy and daddy get home and fire up their online gadgetry things slow down further.
To make sure everyone has some sort of access with the huge increase in numbers online at once, just about all ISPs cap the speeds your connection can operate at in anticipation of the spike in demand.
As for the website - I dunno, but it could be something along those lines. More demand than the servers can cater to. Perhaps someone who knows will be along to answer that one though.
Blithe Spirit - Lark 1804.