google now has this to say about coinurl.com and anything delivered by them :
This site may harm your computer.
I know they need to make money but I hate them from the first time I ran into them. Kill my browser's tab every time I run into them.
Yes, I always recommend people to avoid those spammy coinurl links. I don't add sites to this list which require people to use coinurl links.
Some sites in the list still have coinurl links on their pages but one is not required to use them in order to get free Bitcoin ( please let me know if you find any sites which have changed and now make users use things link coinurl or adfly etc. ). See the warnings in the OP.
I recommend one to only use the faucets themselves on these various pages and avoid using any other links, or joining any programs, or applying for any offers etc.