What is the more reliable and quick classified ads website in UK?

I know there are a lot of classified ads out there but even the main ones are difficult to post with. I want a classified ads or local communauty site where you can post directly and your ad appears instantly. One which will have jobs,housing,renting,meeting and for sale categories. But i'm looking for one that doesn't restrict you with your location or all sort of things. I'm looking for a classified ads website for the UK (London or other cities...).Thanks!

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).