For a general election there's heaps of info about, but the local candidates round here don't really have much of an online presence. whocanivotefor.co.uk is a useful resource but half the candidates here have no info about them. I'll always put a piece of paper in the ballot box but I'd ideally like to know what I'm actually voting for before putting a cross in the box, but maybe I'm not the typical voter.
In 2017 my local ward was only won by a majority of <200 (from nearly 4000 votes) so it's hardly a safe area either.
Did a quick Google of my local council candidates last night and found....nothing.
The local Mayoral election candidates, however, had full manifestos etc.