impact: (or is a web archiving site, founded in 2012, that saves snapshots on demand, and has support for JavaScript-heavy sites such as Google Maps and progressive web apps such as Twitter. records two snapshots: one replicates the original webpage including any functional live links; the other is a screenshot of the page. was founded in 2012. The site originally branded itself as, but in May 2015, changed the primary mirror to In January 2019, it began to deprecate the domain in favor of the mirror. More information...

The website is placed before and after in the BestRef global ranking of the most important sources of Wikipedia.

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