Comparison of the Voxel and Cotendo CDNs
In the tables below you can easily compare
Voxel and Cotendo for POP locations, pricing and features & support.
We hope this helps you better understand the similarities and differences between these Content Delivery Networks.
POPs in North-America
New York (8x), New Jersey (2x), Ashburn, Chicago, Philadelphia, Dallas, San Jose and Palo Alto 9
New York, Washington, Chicago, Dallas, Atlanta, Miami, Seattle, San Jose, Los Angeles.
POPs in Europe
London, Amsterdam (2x) 7
Amsterdam, Frankfurt, London, Paris, Madrid, Milan and Stockholm.
POPs in Asia (not China)
Hong Kong and Singapore 7
Hong Kong, Singapore, Tokyo (2x), Delhi, Mumbai and Bangalore.
POPs in China
Beijng, Shanghai, Guangzhou, Chengdu, Shenzhen.
POPs in Australia
Melbourne and Sydney.
POPs in South-America
Sao Paulo, Buenos Aires and Bogota.
POPs in Middle-East
Tel Aviv and Doha (Qatar).
POPs in Africa
A POP is a Point Of Presence, an access point to the Internet. It is a physical, strategically placed location that houses multiple CDN servers.
Note: custom price plans are very common in the CDN market, especially for large volume customers. We recommend you always talk to the CDN provider about your needs and requirements and work with them to get a best-fit deal.
Features & Support
Push (upload to CDN servers)
Contendo support various types of flush expressions such as /* ; /subfolder/* ; /subfolder/*.jpg; etc.
Only if origin server does Gzip
Resend from origin, or compress on edge
Cotendo also offers the possibility to deactivate Gzip on the origin and have Cotendo do the Gzipping on their servers (compression-on-the-fly), for an even faster delivery to end users and less load on the origin. And, Cotendo supports exclude lists. If a specific user-agent requests a compressed object, the Cotendo server can decide to send it uncompressed due to known compliancy issues that the user-agent might have.
Honors all origin server headers
Cotendo will comply to the following cache headers: Pragma: no-cache, Expires: valid date, Cache-Control: no-cache or no-store or max-age=x.
Can override origin server headers
It is possible to very specifically alter headers.
Cotendo supports full modifications of any headers. The customer can add his own headers, set the value of any existing header and even re-name some headers while preserving their value. Also, to support mobile content delivery, Cotendo's CDN-integrated mobile device database offers the ability and flexibility to cache content according to device.
Set caching headers for pushed files
CNAME is not possible for secure webpages (SSL)
Voxel charges $99 per month extra for handling traffic over SSL. A custom CNAME is not possible for secure pages.
Control Panel & statistics
Cotendo offers the possibility to test and validate new CDN configurations in the complete staging environment without impacting production traffic.
Statistics include: Real-time Usage Report. Top Objects Report. Referrer Report.
Rsynch for the log files is supported.
Cotendo supports a full transaction log service which will FTP logs to the customers's FTP server. The customer can decide how frequent he wants the logs to be sent (daily, hourly, real-time). Additionally, the customer can decide which fields and in which format (i.e. supports w3c format) to generate the log.
Purge objects from VoxCAST's cache. Adjust the configuration of your VoxCAST CDN to change parameters like cache expiration time; origin settings; log formats; etc.
The different APIs available are: Flush (purge), Set Configuration, Get Configuration, Publish Configuration. Additionally Cotendo supports report APIs (Get Bandwidth Report by Account; Get Bandwidth Report by Origin and many others).
Voxel believes in providing exceptional "Zero Bureaucracy" support to all customers and they handle support 24/7/365 from their New York and Singapore offices, phone and email. Response time depends on the type of issue and is generally within the hour.
All Cotendo services are including 24/7/365 premium support by phone and e-mail (with a human (not auto reply) e-mail response time within 5 minutes). Furthermore every customer gets an own dedicated engineer for all technical matters + an own dedicated account manager for all business matters (including all direct contacts: mobile phone number, email, Skype, etc.)
Cloudfront Purge Tool new
A Chrome extension, to easily purge (invalidate) files from Amazon Cloudfront, using an intuitive, secure interface.
What Content Delivery Network is a site using? What is the CDN behind a hostname? Easily find out, with CDN Finder.
Content Delivery Networks
Velocity conference 20% discount
Want to learn more about building and running fast web apps? Join 2000+ like-minded enthusiasts at the premier Web Performance & Operations conference,
, June 18-20 in Santa Clara, California.
The discount code TURBO gives you an additional 20% off: Velocity 2013