Wikipedia
archive.is (formerly archive.today) is a privately funded digital time capsule, with data-centre located in Europe at Nord-Pas-de-Calais, France. The archive runs Apache Hadoop and Apache Accumulo software. It retrieves one page at a time similar to WebCite, smaller than 50 MB each, but with Google Maps and Twitter included.
archive.is uses headless browsing to record what embedded resources need to be captured to provide a high-quality memento, as well as takes a PNG snapshot of the representation to provide a static and non-interactive visualization of the representation.
Unlike crawlers such as Wayback Machine, archive.is only captures individual pages in response to explicit user requests, and so does not obey the robots exclusion standard. Because of this, website owners cannot unilaterally remove content at will, thus it is a "permanent" archive.
Since July 2013, archive.is supports the Memento Project application programming interface (API), and Firefox and Chrome Plugins.