Tarsnap is a secure online backup service for UNIX-like operating systems, including BSD, Linux, and OS X. It was created in 2008 by Colin Percival. Tarsnap encrypts data, and then stores it on Amazon S3. The service is designed for efficiency, only uploading and storing data that has directly changed since the last backup. Its security keys are known only to the user. It was developed and debugged, with input solicited from bug bounty hunters, to try to find vulnerabilities. A serious nonce-reuse vulnerability was found by this process and fixed in 2011. More information...
According to PR-model, tarsnap.com is ranked 64,836th in multilingual Wikipedia, in particular this website is ranked 44,693rd in English Wikipedia.
The website is placed before cyclingranking.com and after originalmartinkemp.com in the BestRef global ranking of the most important sources of Wikipedia.