Just so you know, none of what you listed will I consider to be a helpful tool, they're just basic information/website out there. I mean should one invest because there's an upcoming events or that's a strategy for trading? Investing should be long term focused and only calculated risk should be encouraged since the market volatility can causes you losses that'll be difficult to recover from.

None of this sites guarantee an investment to be authentic, with the right price, any project with the right offer can buy them into featuring them on their sites. You can as well scrolls through crypto twitter and get all the updates those websites you listed will display.

In regards to certik, Rikafip has said it all. I mean, is there any project especially those focus on defi listed on coinmarketcap that isn't been audited by certik this days, yet they still get hacked and some turn out to be scam. Best method to prevent yourself from all the scams out there is to ignore them totally and concentrate on investing in Bitcoin.