Link11

AI-driven DDoS protection mitigating attacks in 0-10 seconds across 42+ PoPs

Frankfurt am Main, Germany · Founded 2005 · Paid
A European alternative to AWS Shield Imperva

About Link11

Link11 is a German cybersecurity vendor headquartered in Frankfurt am Main, specialising in DDoS protection. Its patented, AI-driven cloud platform mitigates attacks across all vectors in 0-10 seconds and is fully automated against unknown attack patterns. The network spans 42+ points of presence with a 24/7 Security Operations Centre. Link11 is DSGVO-compliant, ISO 27001 certified and recognised by the German Federal Office for Information Security (BSI) as a qualified DDoS protection provider for critical infrastructure operators. Customers include Fraport, the Frankfurt Airport operator.

Quick facts

Pricing model Paid
Free trial
Open source
Self-hostable No
Public API No
Target audience B2B
Company size fit All
DPA available Yes
Data stored in EU Yes
Last verified by eubuilt.eu on 26 Apr 2026 — re-checks every 6 months Flag listing → Read our criteria →