We update our website every day. So our links can be verified very regularly. But since we are not perfects (not yet) and we link more than 1000 links, some can be down. Thanks to report us any problem with a link. Do not forget, anyway, that internet is also not perfect. Sometimes a server can be down for a few hours or a few days, sometimes some servers can't be reachable by some countries for a while. Sometimes... That's the reason why sometimes we willingly wait for a moment before cancelling a link.