Memento Depot - Web Archives with Memento Proxy Support

Last updated: January 23, 2015

Archive Content

Various Web Archives are accessible via the Memento "Time Travel for the Web" protocol through a proxy solution. Because of the proxy nature of the Memento support, responses are typically slower than they would be with native Memento support. Web Archives can be made natively Memento compliant by installing a recent release of the Wayback software. For example, the Internet Archive natively supports Memento, as described here.

Nevertheless, the proxy solution for Web Archives provides support for Memento's datetime negotiation to access a version of a web resource as it existed at a specific moment in time. Check out the brief introduction to Memento if you are not familiar with it.

The below table lists Web Archives that are Memento compliant by proxy. The table also shows the abbreviation that is used in the path of their TimeGate and TimeMap URIs, and provides a pointer to information about the archive.

Archive Name Abbreviation Archive Information
AUEB, Greece Web Archive aueb info
Government of Canada can info
Catalonian Web Archive cat info
Croatian Web Archive cr info
Estonian Web Archive es info
NARA Web Archive nara info
Web Archive Singapore sg info
Slovenian Web Archive si info
WebCite webcite info

Let's take the Portugese Web Archive po as an example. And let's take an Original Resource covered by that archive, namely http://www.uc.pt/. The resources that are relevant for the Memento protocol are:

Integration with the Original Dataset

In responses to HTTP requests, Original Resources covered by these archives typically don't provide a Link header with a "timegate" link to point at a TimeGate.