Nikita Rozenberg
CEO
Blackwall
Blackwall provides a high-availability reverse-proxy security platform, GateKeeper, that enables web hosting providers and data-center operators to protect customer workloads from Layer-7 DDoS attacks, malicious bots, and scrapers. The platform integrates into existing environments, supports white-labeling, and includes features like HTTP/3, automated SSL management, and a configurable Web Application Firewall, allowing providers to turn security into a recurring revenue stream.
- Cybersecurity
- Software Only
- Artificial Intelligence
Updated yesterday
Funding
Raised to date
$162.7MRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
across 4 rounds
SL+1$100M · Series C
Announced Oct 2026 · from article date
Disclosed cumulative: $162.7M
4/4
RoundDateAmountValuationInvestors
Founders
Product
Problem
Web hosting providers and data-center operators must continuously defend against Layer-7 DDoS attacks, brute-force login attempts, malicious bots, scrapers, and other automated threats that consume bandwidth, degrade performance, and increase operational expenses. Limited visibility into traffic at the entry point makes it difficult to filter illegitimate requests without impacting legitimate user experience.
Solution
GateKeeper is a high-availability reverse-proxy platform that sits at the web-traffic ingress point and performs deep, real-time inspection of every request. The system combines a distributed detection server with a centralized data warehouse to identify and block malicious traffic, including L7 DDoS floods, credential-stuffing, and automated bot activity. By filtering out illegitimate requests before they reach backend servers, GateKeeper reduces load, improves latency, and lowers operational costs for providers. The platform also bundles a configurable Web Application Firewall, modern protocol support (HTTP/3, TLS 1.3 with 0-RTT), automated SSL certificate management, content caching, and rate-limiting capabilities, enabling hosting companies to offer security-as-a-service to their customers without additional infrastructure. Blackwall integrates into existing environments and tools, allowing providers to package, price, and deliver security their way, including white-labeling and automated provisioning.
Target Audience
The primary customers are web hosting providers, data-center operators, and managed service providers that deliver shared or dedicated hosting services to SMB and enterprise clients.
Features
- Distributed reverse-proxy architecture with redundant GateKeeper nodes for high availability and horizontal scaling
- Real-time deep packet inspection powered by a dedicated detection server and a centralized analytics data warehouse
- Adaptive Web Application Firewall that applies signature-based and behavior-based rules to mitigate OWASP-top-10 threats
- Next-generation bot and scraper detection using machine-learning classifiers and reputation feeds
- Native support for HTTP/3 (QUIC) and TLS 1.3 with 0-RTT to minimize handshake latency for legitimate users
- Automated SSL/TLS certificate provisioning, renewal, and key management across all protected domains
- Integrated content caching and request throttling to reduce backend load and prevent API abuse
- Plug-and-play integration modules and APIs for seamless deployment within existing hosting, billing, and orchestration platforms
- Centralized logging and reporting dashboard for traffic analytics, incident forensics, and compliance auditing
- White-label capabilities allowing service providers to brand and deliver security features as their own