Seems like a nice service, after all There were some initial problems creating an account, but they kindly helped me, and I'm currently reviewing the service's features before deciding on the paid plans. For now it seems like a great deal.

GREAT TEAM, VERY ACCURATE DATA! Our company tested IPQS against 10+ service providers to determine the best IP address data and then again against 15+ service providers for email validation. IPQualityScore outperformed by a significant margin across both services (email + IP). We were also impressed with the quick response times from their support team and our account rep. Their data is a much higher caliber than what's typically found in the industry and you can see that the team works hard to maintain their edge against fraudsters.

Been using IPQualityScore.com for 5… Been using IPQualityScore.com for 5 years on our network of sites and the service has been absolutely FANTASTIC! Couldn't recommend a better proxy checking service. They are the best in the world by FAR!

This service provider classifies IPs… It was quite an act to reach anyone from IPQs at all, the background is that many scammers try to blackmail IPQs by means of bad ratings that the IPs are listed positively again. The best way to send a false positive report to IPQs is either to write to the co-founder on LinkedIn or to create an account with IPQs and submit a support request. Also prove that you are the legitimate owner IP and do not belong to a proxy/BotNet. e.g.: Registration number of the company in your own country, screenshots of the server and IP address in the admin panel of the hoster "remove important info!", proof that the local IP is registered to your own company It remains at -2 stars due to the major problems that the whole thing caused. Original problem: This service provider classifies IPs with a score of 99 without any proof or evidence. My e-mail to the False Positive Team and the request for evidence for this classification has not yet been responded to. A check of the IP with other service providers has also not revealed any anomalies. An inquiry to our ISP has also provided no evidence that there is any problem that IpQualityScore claims to have.

Predatory/Scam I don't know what kind of predatory/scam IPQualityScore.com is or why they have targeted my IP address but I have repeatedly tried to contact them and have heard nothing back.I will not pay them for targeting me.DO NOT TRUST. To update the situation,after reading this review I was contacted by IPQualityScore.com and they quickly corrected erroneously blacklisting my IP address. Advice for anyone falsely being blacklisted by a company like this,I had to write this negative review for them to respond to me and fix their error.There seems to be a lack of laws and regulations regarding private companies falsely blacklisting individuals IP addresses.If you are experiencing this and the company ignores you or refuses to work with you on fixing it you can file a complaint with the FTC or the FCC depending on your situation.