Don't trust anyone (avoid shortener link service) maybe it contains malware where they will steal your sensitive stuff.
Make sure you know any original site , because they have many designs with different domain name (this can help you to identify any phising sites)
Yeah many people who use shortern link so others people can not easily recognize the fake sites and to close their domain addresses that are not similar to the domain that they are replicas. to display you might be tricked but for the domain will be obvious. but you have to be careful with a mailer that goes into your email and you have to check the domain. do not believe in the mailer that went into spam dude
I don't know if it would actually help, but whenever I see shortened link from an untrusted source, I use TOR browser and have all my antimalwares and antiviruses on high alert. That way, I feel safe. Or at least I think I am.
Cloud mining sites are usually scam. Avoid them. During transactions, always escrow especially when it is a large tx. Other tips are actually already said by other users.