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On Web Cache Deception Attacks: What is that, and how to repel them? Recently, web masters and IT security specialists have started being concerned about data exfiltration method called a "Web Cache Deception Attack." Such attack spoils web caching functionality and makes sensitive information vulnerable. Caching is widely used to shorten load time for web servers that receive content requests and in content delivery networks. Such attack shows how caching feature can be misused to acquire content not intended for caching. more...
6 Ways to optimize images to boost conversion rates Websites that put aesthetics and product demonstration on the pedestal never lack customers’ attention. Images are widely used to attract and retain visitors and show the products from the best side. However, it is highly important to ensure fast website loading and responsiveness to provide perfect user experience. Learn how to optimize images so that boost conversion rates. more...
Analyzing CDN performance: what metrics should be taken into account Website developers who want to increase traffic and user retention should not only optimize user performance, but also pay attention to specific performance metrics. What are the most important metrics, and how can they be estimated? more...
How to test CDN behavior with the help of Dummy Origin? Prior to ordering a new CDN (content delivery network) you should know how it will work for your website, and what its behavior will be like. Of course, you can read CDN documentation and talk with customer support agents, but a picture is worth a thousand words. more...
How to customize work of edge servers in your CDN? Buying a pre-configured CDN is always a good option, but sooner or later you may find out that it works not exactly as you want. Want to get the most out of your CDN (content delivery network)? Find out how to customize its edge behavior. more...
What is stale content, and how it should be treated? Stale content is the one that has expired in cache. It’s widely known that CDN (content delivery network) doesn’t keep an object in cache forever: every file has a TTL (Time to live), and as soon as it reaches zero, the object expires. After that, CDN must contact the origin server to send the object to visitors more...
Root domain on a CDN: to leave or not to leave? Today it is not common to publish a website on the root domain (also named “domain apex”), while running the site via CDN (content delivery network) is the recent trend that can give end-users excellent experience. CDN provides you with an endpoint to the point in DNS, and sometimes you can’t use a CNAME on the root domain. What to do? more...
CDN or caching: what is better? Before CDN (content delivery network) was introduced, traditional caching had been the major way of page acceleration. Some people claim that CDN is preferable because it caches and transfers static files (codes, JavaScript, CSS, images) and improves performance by requesting the entire web page from domain. However, there is an older and cheaper alternative: setting the Expires header and forcing browser to cache static files which allows reducing the number of requests. What is the best for performance, and may the two ways be combined? more...
What Modern CDN Solutions For Low Latency Streaming Are Like? Since online streaming is gaining wild popularity, more content owners start asking about low latency video based streaming solutions. Traditionally, a live event is a live one-way stream from a broadcaster to viewers, and latency during broadcasting may be around 15-45 seconds, if not more. Interaction and users’ participation are almost impossible this way. However, interaction is crucial in many spheres of our life: education and online classrooms, talk shows, virtual gaming, auctions, etc. more...
Main reasons to order CDN With more than 2.5 billion users, Internet is a huge virtual landscape. Businesses that want to be successful should be able to reach customers globally. But how to sustain perfect web performance and ensure excellence of user experience despite poor connection, security threats and latency? more...

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