Blog/CDN

Insights and advice for improving web performance.

3 Simple Steps to Leverage CDN Caching

3 Simple Steps to Leverage CDN Caching

It is important to properly leverage the CDN caching mechanisms for best performance. This article provides you a best-practice guideline on how to set the Cache-Control header and how to handle cached assets. 1. Use the Cache-Control header In general we recommend to leave the default cache related settings of your Zone as they are, such as the Expire, Max Expire, and Ignore Cache Control settings. Setting Ignore Cache Control to disabled will enable the processing of Cache-Control response header fields from the origin server, such as Cache-Control and Expires.

May 11, 2015 Read more
HTTP/2 - What Does It Mean for a CDN?

HTTP/2 - What Does It Mean for a CDN?

As the Internet evolves, so do the protocols that govern its operation. KeyCDN announced support for SPDY in 2014, which was a big improvement in terms of speed, but Google's update to drop SPDY heralds the start of the next big protocol change. One of the latest protocols is HTTP/2, which aims to address the shortcomings of its predecessor, HTTP/1.1. This new protocol is intended to enable faster and more efficient data transfer between web servers and browsers.

April 8, 2015 Read more

KeyCDN - The Next-Generation CDN

In this blog post we'd like to share our insights and thoughts about what makes KeyCDN a next-generation CDN. It's about a whole range of components that we think define a next-generation CDN. We are rapidly developing new features based on the feedback and requests we receive from our customers. KeyCDN is a next-generation CDN not just from a technical perspective, but also based on our business model, our culture, our drive to innovate and how we empower everyone to use a CDN.

March 27, 2015 Read more

Make Use of X-Forwarded-For with a CDN

The X-Forwarded-For (XFF) HTTP header field is a de facto standard for identifying the originating IP address of a client connecting to a web server through a content delivery network (CDN). KeyCDN forwards this HTTP header to any origin server of a Pull Zone. About X-Forwarded-For Without the XFF HTTP header or any other similar technique, a connection through a CDN would only reveal the IP of the POP but not the end client.

February 25, 2015 Read more

CDN Infographic - What Is a Content Delivery Network?

The main goals of a content delivery network (CDN) are about speed, scalability, and reliability. KeyCDN built a CDN for simpler use at minimum cost. The following infographic explains the basic concept of a CDN. CDN infographic A content delivery network (or content distribution network) is a system of strategically positioned servers around the globe. You can grab the embed code for the CDN infographic above from Visually. KeyCDN will supercharge your website.

February 13, 2015 Read more

Origin Shield - Extra CDN Caching Layer

KeyCDN is excited to provide the Origin Shield feature for free to all customers. This extra caching layer reduces the load on your origin server and accelerates the distribution of your content from the origin server to our edge servers. The shield servers are highly redundant and automatically select the optimal location using our geolocation technology. How does Origin Shield work? When a client requests content from your website and that content has never been cached by any of KeyCDN's edge servers, this is what happens with that request when Origin Shield is enabled: Requests don't come from our growing number of edge servers but are filtered through selected shield servers.

January 29, 2015 Read more

CDN Analytics: The Next Level of Reporting

We are excited to announce that our next generation analytics platform is fully in production now. Many new statistics are available in the dashboard. Such as Usage and Analytics. The new CDN analytics give you more insights on your traffic pattern. CDN analytics The analytics section under the reporting tab of the KeyCDN dashboard provides detailed information regarding HTTP and cache statuses. You can even drill down into a single Zone or select a date range to display a greater timeline of data.

January 8, 2015 Read more

KeyCDN - The WordPress CDN for Everyone

In order to ensure best user experience and optimal WordPress SEO, a CDN plays a key role in delivering content fast and reliable. KeyCDN works seamlessly with all common WordPress CDN plugins and makes sure your site is super fast. It's is the WordPress CDN of your choice. WordPress (WP) has been one of the most successful content management systems (CMS) out there, and now powers over 25% of the internet.

November 24, 2014 Read more

Cache Hit Ratio (CHR)

The cache hit ratio (CHR) gives precise information about the amount of files served from the CDN without any requests to the origin server. In this post we will highlight what has an impact on CHR and what can be done to improve it. The cache hit ratio will only apply for Pull Zones. The CHR is measured among all files served from a Pull Zone regardless of the file size or file type.

November 2, 2014 Read more

CDN OCSP Stapling

HTTPS is ubiquitous these days and plays a crucial role in making the web safer and more private. We encourage our customers to use HTTPS whenever possible (check out our feature "Force SSL"). Now that everyone is using HTTPS, we don't want to scarify any performance for a safer connection. We at KeyCDN are passionate about offering best performance not only for HTTP but also for HTTPS. Our mission is to make the web faster and more secure.

September 2, 2014 Read more
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