This page shows what people living in Croydon have reported as not working — electricity, water, internet, mobile signal, refuse collection, road closures and anything else affecting the area. Reports come from neighbours, and whether something is still down is decided by the people affected rather than by whoever reported it first.
If several people report the same problem it is shown once, with a count of how many are affected, so you can tell a street-level fault from something hitting the whole suburb. Checking is free and needs no account.