Keep your bits secure

Intelligently Optimized Security Control 

The nuu:bit Web Application Firewall (WAF) service is designed to provide a layer of security for your web assets, highlighted by three key differentiators:

  • Customer- managed, for higher, optimized security
  • Get & Post request filters
  • Self-learning tools to make it easier for a customer to generate custom WAF rules

The nuu:bit WAF is a robust solution that does not rely on a signature base like other WAF tools, and cannot be circumvented by an “unknown” attack pattern. Our WAF includes core rulesets, which are extensible by allowing additional user-defined rules that can be added to the platform. Automatic whitelist creation makes it easier to deploy the firewall upstream and rule out 100% of false positives.

An important part of any security solution is visibility to help inform your security choices, and the nuu:bit WAF offers a comprehensive set of analytics to quickly view WAF events, an event heat map to identify attackers’ locations, and detailed event logs.

Why nuu:bit’s WAF?

The nuu:bit offers a customizable firewall to meet your business needs.  Our self-learning mode makes it easy to protect your data with no false positives. 

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Image Optimization

Image Optimization

The nuu:bit Image Optimization solution dramatically boosts revenue and operational efficiency deriving from increased end user engagement. It is the most powerful, automatic image optimization solution on the market today! It optimizes each image automatically without touching or altering the existing website publishing workflow.

It significantly improves the end-user experience by not having to download unnecessary data which decreases load time. The nuu:bit Image Optimization solution dynamically delivers the right image size that each device needs, effortlessly. This unique technology provides an optimized ROI for web properties that count on performance while not impacting the operational work flow.

Custom Dashboard

Custom Dashboard

Create custom dashboards to view the items that are important to you. This includes the ability to import 3rd party or legacy systems using an iframe.

  • Maximize Your time
  • Monitor 3rd party or legacy systems via an IFrame
  • Aggregate data views for traffic, mobile App, image optimization, DNS and security


Static Caching

Static Caching

At nuu:bit, we offer a global CDN caching platform which allows our customers to define the following:

  • Which content should be cached on the CDN cache, and for how long
  • What browser caching setting should apply
  • How to handle URL query string parameters and HTTP cookies

Caching static content (like images, CSS, JS and video files) on what was known as the edge caching has been around for a while and remains to be a stable and a very efficient technique to improve the performance of a website or mobile application.

Our CDN global caching system supports highly custom caching rules. These rules are a set of parameters that change the caching behavior of one or more URLs that match a pattern, specified as either a wildcard expression or a Perl-compatible regular expression.

One of the technologies nuu:bit uses is Varnish, which allows our customers to directly use domain-specific language called Varnish Configuration Language, or VCL for short. This will allow for complete and total custom caching.



The serverless Distributed Compute Environment offering is the Functions as a Service or FaaS solution. This solution offers clear advantages:

  • Faster App Development – Develop applications faster at the same time reducing the size of code which could contain bugs that are common in monolithic applications.
  • Enabling quick, incremental code changes – This approach provides for a loose coupling of small software components also improves the odds that developers will be able to change one service without breaking other services that depend on it.
  • Resiliency – A fully distributed services allow for isolated changes without impacting the system as a whole.
  • Cost – Much less cost for FaaS services vs using a full cloud server instance
  • Scaling – As the App logic is distributed, the system can scale as it does not have a single monolithic point that would prevent the system from expanding.

Currently we offer support for two languages, VCL and Lua.

Custom VCL

One of the technologies nuu:bit uses is Varnish, which allows our customers to directly use a domain-specific language called Varnish Configuration Language, or VCL for short. This allows some application logic is executed on when a request is made.


Lua is a powerful programming language, and nuu:bit’s global CDN platform allows you to run custom Lua code globally, closing the gap between your end-users and expected a response to the last mile.



At nuu:bit, we understand the importance of cybersecurity, and we have provided an easy way to manage SSL security. The nuu:bit portal supports full self-servicing for SSL certificates. This saves our customers valuable time. Moreover, nuu:bit doesn’t charge our customers for custom SSL certificates whether they are a wildcard or not.

Securely upload and manage your own SSL certificates to be associated with your domains using SNI feature.

We also offer a tightly integrated SSL solution from GlobalSign, a Certificate Authority provider, to protect your web resources within minutes (we call the feature “SSL Names”). We support a domain control verification using email, HTML Meta-tag or Email.


Instant Purge

Instant Purge

The nuu:bit platform supports instant purge of cached object via customer portal or API. This allows for support for the caching of your transient data allowing for a more dynamic and rich end user experience. Using our fast purge solution, >95% of object purge commands are completed within 2 seconds globally. The instant purge functionality and API access allow you to cache even short-lived content, such as forum/comment pages, news, frequently updated product pages, and etc.

Best Practices

Best Practices

At nuu:bit, we are on the same team with our customers! We pick up our part of the responsibility by providing our customers an easy and predictable way to update the configurations with a built-in security.

Following best practices for enterprise-grade systems that are designed to serve critical web and mobile resources, we have implemented the following features:

  • Sandbox (we call it “staging”) environment to test your CDN configuration changes before deploying them in our global network and making them available for our customers’ end users
  • Detailed audit log for all changes performed on your CDN and mobile app resources
  • Visualization of CDN configuration changes and cache purges on traffic graphs
  • Configuration versioning
  • Optional two-factor authentication for customer portal users
DNS Service

DNS Service

At nuu:bit, we work with the best of breed DNS provider NS1. NS1 provides the world’s most intelligent DNS and traffic management solution, enabling content owners and developers to take unparalleled control over their traffic and infrastructure. The nuu:bit portal has integrated NS1 into the portal to simplify management by creating a single pane of glass. Additionally, we have incorporated NS1 DNS analytics into our portal.

Powered by: NS1



The nuu:bit platform provides one of the richest API libraries in the CDN industry to ensure efficient integration to adapt your existing code base and workflow. Our API options provide the developers with the ability and flexibility to control the configuration, automate the workflow, manage users, customizing data pulling and reporting for the dashboard, and improved security.

In development cycle of the nuu:bit platform, we took an API-first approach; therefore, everything in our portal is available via an API. Our APIs can be found at https://api.nuubit.net/. This includes the ability to update configurations, manage users, or pull data using our APIs.


Log Delivery

Log Delivery

The nuu:bit platform supports the ability for the raw log delivery in real time. Our log format is JSON based and provides a rich set of details for empowering deep offline analytics to meet any business objective.

The platform supports FTP, SFTP, S3 containers or ElasticSearch targets for remote log storage.



The nuu:bit Dynamic Site and Content Acceleration feature increase performance for a web property that generates content at origin or application APIs for mobile App.

  • Up to 200% improvement for HTTP traffic and 600% for HTTPS requests
  • Higher level of origin availability comparing to direct origin access or asymmetric DSA solutions

We use Symmetric Dynamic Site Acceleration by default, which means minimum of two nuu:bit locations are involved in handling a request for PoP to PoP communication. The first location is closest to the end user (last-mile location) and the other closest to the customer origin (first-mile location). Additional intermedia nuu:bit locations can be involved if the network routing process detects a more optimal way between first- and last-mile locations.

TCP Acceleraiton

TCP Acceleraiton

DOTS (Dynamically Optimized Transport System) is the nuu:bit platform’s advanced and intelligent TCP congestion control algorithm designed specifically to improve last-mile Internet delivery. Our patent pending invention, outperforms existing CDN solutions by up to 3X.

DOTS does not require a software agent on the receiving end, as it is built with the focus to accelerate HTTP content delivery asymmetrically; this elegant yet powerful feature contrasts SDK’s requirement for special software to be compiled in the App that runs on the edge device. Leveraging DOTS, nuu:bit’s leading core technology with three key pending patents, we are sending data even faster and cheaper with ever increased efficiency. We gain 20% to 300% on web performance depending on the network conditions over the normal TCP protocol.

DOTS does not modify the payload (that is, it doesn’t perform any content optimization on transmitted data), and is very safe for complex web applications that might be sensitive to content alterations.



nuu:bit is always incorporating the best-in-class technologies. Eliminating latency at every step provides the nuu:bit the ability to consistently outperform other CDN providers. This is why we were an early adopter of Google’s new network transport protocol called QUIC.

Less is more with QUIC. The zero RTT QUIC combines the best features of UDP and TCP with modern security tools. The key difference between the typical secure TCP connection vs. QUIC is that a browser can immediately communicate to the CDN edge using zero RTT TLS. It is also more reliable than a pure UDP as QUIC also introduces features such as congestion control and automatic re-transmission.

End-users benefit from the following:

  • 30% of overall page load time improvement
  • 30% faster due to less rebuffering for video streaming than over the standard TCP
  • Zero RTT SSL handshake allows for faster connection times

QUIC protocol is supported by Chrome, Chromium and Opera browsers. For more information about QUIC please find the following pages at the IETF.

Device Detection

Device Detection

nuu:bit Image Optimization solution, the nuu:bit image optimization product.

Use Cases:

  • Redirecting Android and iOS users to use the native App to increase user engagement
  • Sending old browsers to simple content
  • Delivering the correct content to the right device (e.g. media)