Websites Found to Be Blocking Tor Traffic
June 8, 2016
Discrimination or wise precaution? Perhaps both? MakeUseOf tells us, “This Is Why Tor Users Are Being Blocked by Major Websites.” A recent study (PDF) by the University of Cambridge; University of California, Berkeley; University College London; and International Computer Science Institute, Berkeley confirms that many sites are actively blocking users who approach through a known Tor exit node. Writer Philip Bates explains:
“Users are finding that they’re faced with a substandard service from some websites, CAPTCHAs and other such nuisances from others, and in further cases, are denied access completely. The researchers argue that this: ‘Degraded service [results in Tor users] effectively being relegated to the role of second-class citizens on the Internet.’ Two good examples of prejudice hosting and content delivery firms are CloudFlare and Akamai — the latter of which either blocks Tor users or, in the case of Macys.com, infinitely redirects. CloudFlare, meanwhile, presents CAPTCHA to prove the user isn’t a malicious bot. It identifies large amounts of traffic from an exit node, then assigns a score to an IP address that determines whether the server has a good or bad reputation. This means that innocent users are treated the same way as those with negative intentions, just because they happen to use the same exit node.”
The article goes on to discuss legitimate reasons users might want the privacy Tor provides, as well as reasons companies feel they must protect their Websites from anonymous users. Bates notes that there is not much one can do about such measures. He does point to Tor’s own Don’t Block Me project, which is working to convince sites to stop blocking people just for using Tor. It is also developing a list of best practices that concerned sites can follow, instead. One site, GameFAQs, has reportedly lifted its block, and CloudFlare may be considering a similar move. Will the momentum build, or must those who protect their online privacy resign themselves to being treated with suspicion?
Cynthia Murrell, June 8, 2016