[horseAMcharlie]

Is there an existing service where I can query an URL and get a list of preservation projects that have successfully archived that URL?

[david_p]

You are looking for Memento.

- http://timetravel.mementoweb.org/ (search seems to be down)

- https://www.webarchive.org.uk/mementos/search (search not responsive for me)

- https://mementoweb.github.io/SiteStory/redirector.html (protocol and tools)

[rz2k]

There are a few browser add-ons that will list about a dozen archives for every page you visit. However, that doesn't include non-public services like the one mentioned above.