Knowledgebase: Web Hosting Related
Information about the Web Acceleration Service for Shared Hosting
Posted by Support, Last modified by Support on 13 December 2014 07:17 AM

The Web Acceleration Service for Shared Hosting automatically optimize the delivery of your web pages so your visitors get the fastest page load times and best performance. There is over 30 POPs around the world that automatically caches your static files at edge nodes so these files are stored closer to your visitors. Dynamic content acceleration connects between each POP and your sites' shared hosting server so that requests that cannot be served from the edge node cache are nevertheless served very fast.

Approximately 2/3 of requests to sites are served directly from cache from the POP that is physically closest to the person surfing the web. But the other 1/3 of requests made have to be sent to the origin hosting server for processing. This happens because many web pages that have dynamic content are not cacheable. This can be because of a misconfiguration, or, more commonly, because the web page changes frequently or is personalized.

Dynamic content acceleration uses a collection of techniques to accelerate and cache these previously uncacheable web pages so that even when the origin hosting server must be consulted, web pages are delivered quickly. And that even works for rapidly changing pages like news sites, or for personalized content. This helps eliminate the speed-of-light latency and cache the uncacheable dynamic pages by using a combination of block level compression techniques to achieve, on average, 99.6% compression of previously non-cached web objects. This Origin Network Optimization ensures that the connection between the origin hosting server here at AISO and the POPs is as fast as possible, allows dynamic pages to be cached at the POPs, and results in a 730% performance increase on average, for web traffic from the web server to the end user.

Web performance is not just about moving static files closer to visitors, it is also about ensuring that every page renders as fast and efficiently as possible from whatever device a visitor is surfing from.

The service also automatically optimizes your pages to minimize the number of network connections and ensure even third party resources won't slow down page rendering and combines multiple JavaScript files into a single request to avoid the overhead of multiple network requests. The service also does on-the-fly removal of unnecessary characters from HTML, CSS, and JavaScript, which saves 20% of a file's size and works without caching so it can support even fully dynamic pages.

The service optimizes your HTML so it renders as quickly as possible and without needing to wait for slow scripts like widgets or advertising, via asynchronous resource loading. It also combines multiple JavaScript files into a single request to avoid the overhead of multiple network requests via JavaScript bundling.

The service does browser optimization due to every browser working a bit differently, whether it is Internet Explorer on a PC or Safari on an iPhone. Browser optimization automatically adjusts the way content is delivered based on the particular device accessing the site to maximize speed without affecting the site's look or features. Making a website half as big is as good as making the network twice as fast. Hardware optimized lossless compression via aggressive GZIP'ing reduces the size of all your resources and delivers them compressed even through lazy firewalls that incorrectly claim browsers don't support GZIP.

The service uses local cache storage on modern browsers and mobile devices to intelligently cache the objects needed to best render your site and automatically adjusts the cache header instructions so browsers will correctly cache the resources of a site to minimize the need for new requests.

The service automatically detect the pages that are most likely to be accessed during a session from the traffic patterns of all the users visiting a site via pre-fetching to automatically identify and then optimize the delivery of your most requested resources. Your most popular assets get preloaded into your visitor’s browser so that your second, third and fourth page loads are extra fast.

The service automatically applies both “lossless” and “lossy” image optimization to remove unnecessary bytes from images. On average, image sizes are reduced by 35%. It also insures that images delivered to your visitors are the appropriate size and resolution for their device by detecting screen size and connection speed to deliver the best image automatically converted for the current browser window, mobile or desktop.

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