Why Use DOSarrest


DOSarrest has been mitigating DDoS attacks for our global customer base with its leading edge DDoS protection cloud since 2007, long before many others. You can't be in this business and protect millions of websites for over 10 years without being good.

  • Enterprise level DDoS protection managed by the most experienced company offering cloud based security solutions.
  • Performance optimization, let our experts show you how to get the best performance out of your website.
  • Web Application Firewall (WAF), based on a positive security model, best of breed in the marketplace today.
  • Zero bandwidth charges between your origin and DOSarrest.
  • Run up to 10 different domains through 1 VIP, no extra charge.
  • All of our services are fully managed by our 24/7 SOC, phone or email.
  • Level 1 PCI certified.
  • Access to DOSarrest External Monitoring Service (DEMS), view real-time performance and up time stats from 8 different sensors around the globe.
  • Unparalleled, intuitive customer portal and interactive graphic displays.
  • 99.99% money back guaranteed SLA.
  • Cloud based load balancing and disaster recovery fail-over.
Click here for all the detailed view of our services


Since our inception DOSarrest was created to stop DDoS attacks, we are not an add-on service to another existing business. We are focused on HTTP/HTTPs and protecting websites, API's and mobile application servers on TCP ports 80 and 443. We are not generalists. Should you require protection for a complete data center, we have a special product for that too, Our Data Center Defender service can protect all of your infrastructure.



We own and operate our own servers, network gear and contract directly with numerous tier 1 providers. Our global network capacity is at 3Tbps and ever increasing.

DDoS Protection

DOSarrest does not use any off the shelf DDoS mitigation gear, we have built and control every aspect of your protection. We built it from scratch, so we know how it operates at its core.

WAF (Web Application Firewall)

DOSarrest has the most advanced WAF available today, based on a positive security model. The best defense against zero day attacks.

External Monitoring

Our external monitoring service allows customers to monitor uptime/performance from a system located outside of our network from numerous vantage points around the globe.


We use our big data analytics engine, to provide powerful real-time and historical statistics for our customers.

Staying Current

We are constantly building, testing and deploying new security and performance features. We have just released our 5th generation of software in May 2017. it's an all new backend, front end, analytics engine, bigger routers and more upstream capacity.

Machine learning

Utilizing our new analytics engine we are using machine learning for bot detection and blocking.


We have our own fully documented API allowing MSP's and NSP's to easily integrate our services into their customer portals.


DOSarrest supplies via our customer portal over 15 real-time, historical and interactive graphic displays.


At the core of DOSarrest are the people and in the end they are the ones that make it all work and care about our customers. We have a 24/7 SOC of analysts and engineers that has an average response time of less than 10 minutes.

Fully managed

From the start DOSarrest has been a fully managed service, whether you need special attention on certain security aspects of your website or performance tuning, we can do it for you on the spot, in a matter of minutes. Our service is very personalized, many of our customers have been with us for 5-10 years and appreciate the ease and extra effort of a security vendor like DOSarrest. No request is too large or too small for us.


Custom configurations

Because we control every aspect of our service, we can create and deploy custom features for our customers in minutes. There are no black boxes with unpredictable algorithyms taking charge of your security. Tell us what you want and we'll program it for you, that's how flexible our technology is.

Reputation counts

80% of our customers come to us by referral or word of mouth. To name a few, these include 2 of the 3 heads of government in North America plus heads of state in Asia and Western Europe, numerous global ecommerce sites, a number of HMO's and public transit companies, financial institutions, Ivey league universities, NFL teams and F1 races. They all appreciate our extra efforts over the last 10+ years and we appreciate them !


From The CEO.

I have been in the Internet business for over 20 years and one of the real truth's is that customers will tell you what's needed, listen to them and you'll both be successful, this is what DOSarrest strives to do everyday.
  - Mark Teolis


Experience, Technology, and Focus

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