Question: I'm looking for a solution that detects and blocks suspicious activity in real-time to protect my ad budget.

If you want a system that can spot and block suspicious activity in real time to protect your ad budget, Spider AF is well worth a look. It includes real-time fraud detection and blocking, as well as more sophisticated options like IP blocking, geomasking and audience exclusion. Spider AF can be integrated with major ad platforms like Google, Microsoft, Twitter and Meta so you can better manage ad spend, improve campaign performance and block fraudulent clicks.

Another good option is Anura, which is designed to spot and block fraud in digital marketing campaigns. It has a 0% false positive rate for fraud detection and can dig deeper to spot more fraud. Anura spans multiple channels and offers analytics that can help you optimize campaigns, making it a good fit for industries that are particularly susceptible to fraud like affiliate marketing and e-commerce.

HUMAN Security has a broader suite of tools, including Advertising Protection that blocks ad fraud and malvertising. With sophisticated analytics and a modular design, HUMAN Security can spot sophisticated bot attacks and fraud. Its features include real-time fraud detection and blocking, and it's a good option for protecting your ad budget and improving your return on investment.

Last, ClickGUARD is designed to automatically detect and block click fraud for pay-per-click ads. It can block bots and invalid traffic, and offers reporting to help you track the problem. ClickGUARD can be used with multiple ad engines, including Google Ads and Facebook/Meta. It's geared for e-commerce companies and SaaS businesses, and can help you better manage your advertising budget and cut down on fraudulent activity.