Link11 · Cybersecurity and DDoS protection from Germany
Attacks don’t take breaks. Neither does your business.
ISO 27001
SOC 2 Type II
BSI C5
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AI transparencyLink11 delivers transparent, European-developed cybersecurity.
DDoS protection, Web Application Security and Application Performance from one provider.
- Network Security
- Web Application Security
- Application Performance
Stay reachable while attacks run.
Attack traffic is filtered before it reaches your infrastructure.
- Mitigation in 0–3 s
- Always-on, no surcharge
- Unlimited mitigation duration
Keep revenue flowing under attack.
Shops, portals and APIs stay available when attacks or bots hit.
- Checkout stays online
- Bots stopped automatically
- Every block explained
Stay fast when everyone shows up at once.
Content from the edge, name resolution protected against attacks.
- Faster load times
- Less origin load
- Domain reachable under attack
G2 Best Software Awards 2026 · Top 50 German Software Companies
Trusted byleading companies worldwide
Attacks don’t take breaks. Neither does your protection. Link11 delivers transparent, European-developed security that’s always one step ahead. So you can focus on what matters most: your business.
G2 Best Software Awards 2026 · Top 50 German Software Companies
- High Performer
- Easiest to Use
Easiest Setup
Momentum Leader- Users Most Likely to Recommend
Maximum security. Top speed. One platform.
Patented DDoS protection. Comprehensive security for web apps and APIs. Content at full speed.
More than a managed serviceEnterprise-grade protection: set it up yourself in the self-service portal or let our experts run it for you.
Fully scalableOur cloud service scales with you. No manual upgrades.
No hidden costsWith our attack flat rate, you always have your costs in view.
Network SecurityExplore Network Security
Web Application SecurityExplore Web Application Security
Application PerformanceExplore Application Performance
Keep infrastructure available.
- Mitigation in 0–3 s
- Always-on, no surcharge
- Unlimited attack duration
Whole networks, prefixes and autonomous systems stay reachable, because attack traffic is stopped before it reaches your infrastructure.
Secure digital revenue.
- Checkout stays online
- Bots stopped automatically
- Every block explained
Your shop and your APIs stay available, even when bots and application-layer attacks look exactly like real customers.
Accelerate digital experiences.
- Faster load times
- Less origin load
- Domain reachable under attack
Secure DNS points the way. Secure CDN moves content closer to users. Together they keep access to applications fast and resilient.
When it breaks, it costs revenue. Link11 stops attacks before anyone notices.
Network Security and Web Application Security at the core, from the network layer through to the application layer.
Protection for your infrastructure. Redefined.
In May 2019, the Italian internet service provider Genesys Informatica faced one of the largest DDoS attacks in Italian history. Link11 Network DDoS Protection was in place within a few hours.
Network DDoS ProtectionCase study: Genesys InformaticaFor web applications that deliver more.
At a UK online shop, bot traffic slowed the site. Link11 bot detection, tuned with our team, blocked the bots with minimal false positives: better performance, fewer customers dropping off.
Web Application SecurityStop bots. Not users.
The iGaming platform Ventures Lab sees brute-force logins and scraper bots every few hours. Link11 WAAP blocks them, and the team sees what is happening in real time.
Bot ManagementCase study: Ventures LabSpeed meets security.
At kick-off or on election night, everyone clicks at once. Application Performance keeps content and DNS fast, even under attack.
Application PerformanceSecure CDN
One provider. For every layer your business runs on.
Applications, networks and delivery, protected by one provider. Start with the layer that matters most today and add the others without changing provider.
See all productsAlways-on routes your traffic permanently through the Link11 network, on-demand only during an attack. Only clean traffic reaches your routers.
Explore Network DDoSWeb Application Firewall, API Security, Bot Management and Web DDoS Protection on one platform. Every request is checked before it reaches your application.
Explore Link11 WAAPStatic content comes from the edge, so your origin only serves what changes. Secure DNS resolves globally and is itself protected against DDoS.
Explore CDN and DNSLegitimate trafficUnclassified, decided at Link11Attack, stoppedClean traffic, forwardedResponses to users
Stay in control.No surprises. No downtime. No awkward conversations with the boss. Onboarding, compatibility and monitoring, built for minimal effort on your end. It just works.
Fast & precise.Threats are fast, but we’re faster. Pinpoint precision, backed by over 20 years of experience. A global network with patented DDoS protection. Multi-terabit capacity, low latency.
24/7 Customer ServiceAround the clock, in German and English. Here for you whenever you need us.
It’s never just a website or app. It’s what runs behind it.
See where attackers start, and what protects you there.
Customers get through. Scrapers and credential stuffing do not.
Scripts try stolen passwords and codes until an account opens, or read out your API record by record.
Attack traffic ends in the Link11 network. Sites and central services stay connected.
When central services stop, the flow of goods stops too. A VPN gateway is a bottleneck that attacks can deliberately overload.
Citizen services stay reachable. Even while attacks run.
At a public office, a citizen waits for their passport data. Network Security filters attacks upstream, so the data still arrives.
Reachable when it matters. Even under attack.
On election night, everyone clicks at once, and attacks arrive at the same moment.
Shops, portals and APIs stay available. Even when attacks or bots hit.
Seasonal peaks can be planned, attacks cannot. Scrapers copy prices, purchase bots block inventory before a customer gets to it.
Stay available. And prove it.
Link11 helps you meet regulatory requirements such as NIS2 and DORA. In Link11 WAAP, each block traces back to the request.
What European regulators demand, every customer gets. Wherever they operate.
Data sovereignty as a real competitive advantage. Clear jurisdiction, infrastructure you can audit and a provider that answers to European law.
EU-compliant security and regulatory standardsProcessing under European data protection law (GDPR).
Full control over your own dataYou see where security-relevant data is processed.
Less legal uncertainty and lower riskLink11 GmbH, Frankfurt am Main: an EU legal entity.
Greater independence and trustOur 24/7 in-house SOC, not an outsourced desk.
Attack traffic, absorbedYour traffic, unchanged
>8 daysof uninterrupted attacks on a single target
+75%increase in DDoS attacks (YoY)
50–250kUS dollars: the typical cost of one hour of downtime
Proven by customers. Confirmed by auditors.
Removing the threat of DDoS traffic using Link11 on Platform Equinix allowed us to eliminate system failures from our internal and external clients …
About 90%fewer customer service calls
From 20 to 40 Gbit/sbandwidth for routing internet traffic to Link11 (doubled)
We are now stronger than before the crisis, and our new DDoS protection by Link11 helped us.
A few hoursfrom emergency to full DDoS protection
0attacks through to the data centers since switching
… it grew to 100 servers to absorb the attack. We didn’t experience any interruptions.
0interruptions during an attack that needed 100 servers to absorb
From 2–3 to 100servers a site scaled to during the attack
IT services · Network DDoS Protection
Internet service provider · Network DDoS Protection
Food & beverage · WAAPCase studies from teams that stayed online.
ISO 27001
SOC 2 Type IIBSI C5
GDPR
PCI DSS
Green Web FoundationKnow the threat. Before it reaches you.
Bitkom Economic Security Study 2026: why cyberattacks have become an existential risk
Threat landscapeWhat the new record numbers mean for security budgets and board reporting.
Two million requests per minute, and the gap was only six characters wide
Cyber insightsHow randomized URLs slipped past rate limiting, and what stopped them.
TuxBot and the new era of botnets
Threat landscapeFrom an IRC prank to an AI agent: how botnets evolved and why TuxBot v3 marks a new level.
Let’s talk
Your business stays online. We’ll show you how.