Best tools to check proxy anonymity?

Hi!

I want to use static residential proxies + VPS to farm ad accounts. What's the best tool to use to check if the setup is fully anonymous? Meaning the website I'm connecting to can't know that I'm hiding my identity? I'm currently aware of whoer.net and pixelscan.net but not sure if these are accurate or the best to use.

Any tips to ensure maximum anonymity are also very much appreciated!
Take care friends

No need to care fully anonymous or not,
Trusted IP is the Key!

MaxmindminFraud
IPQualityScore
IPinfo.io
IP2Proxy
Scamalytics

Yes that's more of what I was referring to. I guess anonymous wasn't the right word. Thanks a lot for the tools brother!