Interesting test suite, thanks! I have tested scrapeninja.net via https://scrapeninja.net/scraper-sandbox and I got {
"puppeteerEvaluationScript": "OK",
"webdriverPresent": "OK",
"connectionRTT": "OK",
"refMatch": "OK",
"overrideTest": "OK",
"overflowTest": "OK",
"puppeteerExtraStealthUsed": "OK",
"inconsistentWebWorkerNavigatorPropery": "OK",
"inconsistentServiceWorkerNavigatorPropery": "OK"
}
and ip range of "us" geo proxy gives is_abuse: true. Consider this to be okayish though, given that this is a default proxy pool.