Unbubble utilizes a derefer service to remove the referrer field from HTTP headers. This ensures the search query and referring domain is removed and not sent to any external website. The dereferrer is actually an unplanned byproduct of our safe and neutral search engine Unbubble.eu.
You may use our derefer service for own purposes e.g. to obfuscate the origin of links in forums or your own blog. To conceal your links just prepend “http://derefer.unbubble.eu?u=” to any URL.
I’ve been looking for a free derefer service for a project I’m working on and found this. I’ve not used Unbubble before, but their derefer service looks better than all the others I found — I’m not sure why, but the alternatives looked dodgy/untrustworthy.
I suppose I could always create my own service, it would only take 5 minutes, but then I would have to maintain it, and I’d rather not. I’ll give the Unbubble service a try first and if it proves to be unreliable, I’ll reconsider building my own.
Also, I did think that DuckDuckGo might have a derefer service, but I couldn’t find one, which is a shame as I think one would compliment their existing services.