Bot Protection

Nowadays malicious bots and L7 DDoS attacks dominate web traffic, frequently exceeding 40–50% of requests and causing resource exhaustion, data theft, fraud, performance degradation, and revenue loss. Tempesta FW + WebShield tackle this effectively: Tempesta FW generates detailed, near-zero-overhead access logs, stored in ClickHouse. WebShield, a lightweight daemon, continuously analyzes these logs for traffic spikes across various parameters — such as requests per second, cumulative response time, error rates, or unusual patterns per fingerprint/IP — using statistical methods like z-score thresholds on learned baselines or configured triggers. Upon detecting anomalies, it dynamically blocks offending clients (via Tempesta Fingerprints, IP sets, or nftables) with low latency, providing transparent, tunable, open-source protection.