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Hey, Guys, Let's Build a CDN!

Craig Matsumoto

If you've got a bunch of data centers lying around, why not tie them together into a content delivery network (CDN)?

Some software companies are looking into the possibility, using customers' or partners' data centers to create an alternative to the services provided by the likes of Akamai Technologies Inc. (Nasdaq: AKAM) and Limelight Networks Inc. (Nasdaq: LLNW).

OnApp Ltd. is one example. Its real business is to provide software for cloud services, which has given OnApp a customer base of more than 400 data center owners in the past 18 months, CEO Ditlev Bredahl told Light Reading in February.

Those customers span the globe, and many of them have unused computing capacity and bandwidth on any given day. So, OnApp is putting those resources to use. In August, it acquired CDN software by buying the assets of a Malaysian company called Aflexi Sdn. Bhd.

Combine that with those data-center resources, and voila: easy-bake CDN. It's done with the data center owners' permission, of course, and OnApp does vet each potential point of presence (POP) for performance issues. As of last month, OnApp had established 50 POPs that could be knitted together to form ad hoc CDNs.

What's in it for the customers is that they get paid for the trouble. "Up until recently, I sent my clients an invoice every month. Now they [sometimes] get a check instead," Bredahl says.

OnApp isn't the only company onto this idea.

Enomaly tried to do something similar with its SpotCloud offering (based on Aflexi software, it turns out). Virtustream acquired Enomaly in December and is hoping to use it as the basis of a federated cloud service, possibly starting late this year, GigaOm reported.

And a startup called 3Crowd, which sells software for building CDNs, has talked about doing its own CDN through an upcoming service named XDN.

One thing these companies can provide is reach, which is the No. 1 barrier to building a CDN. OnApp's target customers are the small businesses that don't happen to own data centers, let alone data centers spread around the country or the world, Bredahl says.

That doesn't mean a CDN with reach is necessarily an easy sell.

"This is a business and more than technology. You need a sales team to sell this stuff, and it's much harder for a smaller operator to invest in a sales team to sell into content owners," writes Heavy Reading analyst Adi Kishore in an email to Light Reading.

Hard margins
The real reason for OnApp starting its CDN business was to deepen relationships with clients, Bredahl says. But as a former CDN customer at previous jobs, he's quick with revolutionary talk about providing a service more cheaply than Akamai does.

"I wouldn't say they're milking it, but -- they're milking it," Bredahl says. "Nobody has disrupted the CDN market. There's no JetBlue there."

Bredahl might consider Akamai's margins rich, but margins for plain CDN services have gotten thin, as some speakers noted at Light Reading's Carrier Cloud Forum, held alongside CloudConnect in February.

"The CDN market is pretty hard now, especially for pure-play CDNs," said Ari Banerjee, Heavy Reading analyst, during a panel on cloud models. "Akamai is making money, but the rest of the other CDNs -- not so much." (Akamai's gross margins are about 70 percent, while Limelight's are closer to 40 percent.)

Part of the reason is competition, a factor that OnApp, 3Crowd and others will be contributing to. On top of that, service providers are getting more serious about running their own CDNs.

"Akamai is in a hard spot, to be honest, because their core business is commoditized to an extent," said consultant Stefan Bewley of Altman Vilandrie & Company during the same panel.

CDN companies themselves are recognizing this and moving into other areas of business. Akamai, for instance, has been emphasizing other areas such as cloud services, and it's getting into mobile-application acceleration with the purchase of Cotendo. (See Akamai Goes Mobile by Acquiring Cotendo.)

— Craig Matsumoto, Managing Editor, Light Reading

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Pete Baldwin
Pete Baldwin,
User Rank: Light Beer
12/5/2012 | 5:38:29 PM
re: Hey, Guys, Let's Build a CDN!

I like the idea behind this: Data centers have to be built with excess capacity, so why not put it to use? It's the usual story of virtualization.

The business side could be difficult, and of course there's the fact that multiple companies are going to compete in here (and then the margin issues too). I have to admit I'm not sure how far it will go as a business. I do like the "why not" aspect of it, though.

User Rank: Light Beer
12/5/2012 | 5:38:28 PM
re: Hey, Guys, Let's Build a CDN!

The data center business is an interesting one because it's partly about real estate, partly about IT and partly about telecom.

I've always enjoyed thinking about the real estate angle because data centers are basically a big piece of property that can be put to a lot of different uses -- and maximizing profitability is all about figuring out the best use case.

You've just added another possible use case to the list of possibilities.

Pete Baldwin
Pete Baldwin,
User Rank: Light Beer
12/5/2012 | 5:36:17 PM
re: Hey, Guys, Let's Build a CDN!

3Crowd has launched XDN, its lower-cost CDN, as former Light Reading editor Ryan Lawler reports today:


Separately, OnApp is mentioning to us that they'll be at Interop. It'll be interesting to see what progress they've made.

Oh, and to respond (belatedly) to Joan's point -- yeah, this is an interesting alternative use for the real estate aspect of a data center.  There's a parallel in the chip industry: selling excess manufacturing capacity to other chipmakers. One thing to watch will be the business side -- how easy is it to set up an arrangement to use data-center capacity, and how easy is the billing and revenue side, making sure the right people get their money?

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