Alexa.com suffers availability problems
As Amazon.com Inc. trumpets its hosted IT infrastructure services, the Web site of its Alexa Internet division, responsible for some of the company's best known Web services for developers, has been experiencing serious availability and performance problems.
Alexa's Web site has been down for over 18 hours this month, with the most serious problems experienced since Nov. 16, according to Pingdom, a Web site monitoring company based near Stockholm.
For example, on Monday, the site was offline for 6 hours and 42 minutes, and already today (Wednesday), at press time, it had been unavailable for over 90 minutes, according to Pingdom's GIGRIB (Green is good, red is bad) service.
Another monitoring company, Netcraft Ltd., also detected "significant" outages and delays at Alexa.com on Tuesday, which it detailed here.
It isn't clear whether the problems are limited to Alexa's Web site or whether they have affected the online infrastructure it makes available to third-party developers. An Amazon.com spokesman couldn't immediately comment on the issue but said via e-mail he is looking into it.
At least one user of an Alexa Web service hasn't been seriously affected by the downtime: Alexaholic.com, which lets its visitors, like webmasters, search engine marketers and publishers, contrast Web site traffic statistics on up to five domains at once.
"We just wrap the Alexa graphs in a fast, Ajax interface, so we haven't been affected as much by Alexa's downtime. Occasionally I see a graph load a bit slowly, but overall it's not too bad," wrote Ron Hornbaker, founder of Alexaholic.com, in an e-mail interview.
Hornbaker, in Kansas City, Missouri, speculates that the code that generates the Alexa graphs his Web site displays may run on different servers from the Alexa Web site. "Their graph servers are really outstanding, and it's a fantastic free service," he wrote.
Still, the intensity and length of the performance problems affecting Alexa's Web site, as documented by Pingdom, are jarring at a time when Amazon.com's Chief Executive Officer (CEO) Jeff Bezos has heavily promoted the company's hosted IT infrastructure services for developers at public appearances and press interviews.
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