Perma.cc user guide FAQ

General

Who runs Perma.cc?

Perma.cc is developed and maintained by the Harvard Library Innovation Lab at the Harvard Law School Library. Perma.cc is administered by a consortium of libraries, with each library assisting its local journals and faculty users.

Who can use Perma.cc?

Anyone can sign up for a free Perma.cc account, which you can use to preserve up to 10 records per month. To preserve unlimited records, you have to be a member of an archiving organization sponsored by a registrar.

How long will you keep my Perma.cc Links?

Links will be preserved as a part of the permanent collection of participating libraries. While we can't guarantee that these records will be preserved forever, we are hosted by university libraries that have endured for centuries, and we are planning to be around for the long term. If we ever do need to shut down, we have laid out a detailed contingency plan for preserving existing data.

Can I delete a Perma.cc Link?

You can delete links within 24 hours after you create them.

How many links has Perma.cc helped save from rot?

14,222 people, across 859 organizations, attached to 238 libraries have archived 426,866 links. Whew!

Libraries

What is a Perma.cc partner library?

Perma.cc is administered by a community of partner libraries, also called "registrars." Each of these libraries is responsible for helping its affiliated journals and scholars use Perma.cc. Each of these libraries has special authority and oversight privileges, including the ability to create and remove archiving organizations and to monitor Perma.cc usage by associated users.

To learn more about the role of libraries in Perma.cc, take a look at our user guide.

Can my library become a Perma.cc partner library?

Any academic or government library can become a Perma.cc partner library. If you're interested, please let us know via this signup form.

Other libraries should contact us to learn more about the options currently available for your patrons and staff.

What are the fees to become a Perma.cc registrar?

Becoming a registrar is free for academic libraries and courts.

What are the responsibilities of a Perma.cc registrar?

Your main responsibility is help the journals and scholars within your community use Perma.cc. This means setting up archiving organizations, helping to train new users and acting as a resource for those at your institution who want to use Perma.cc.

Check out our user guide for more information on the authority and responsibilities of registrars.

Academic journals

Which journal members should be affiliated users?

That's up to you to decide, in consultation with your registrar. Different journals do it differently. Some journals affiliate all journal members with the organization. Some do so only for senior editorial staff.

What happens when journal members graduate?

That's up to you to decide, in consultation with your registrar. Different journals do it differently. Some journals remove affiliated users upon graduation. Others don't. Bear in mind that if you keep affiliated users on after graduation, any links they create will be associated with your journal's organization and visible to all of the users for your organization. Likewise, they will be able to access (and potentially modify) any links others on your journal create.

Review our user guide to learn more about adding and removing users.

Can users be affiliated with multiple organizations?

Yes.

What does the Bluebook say about using Perma.cc?

Rule 18.2.1(d) in the 20th Edition of The Bluebook says: "Archiving of Internet sources is encouraged, but only when a reliable archival tool is available. For citations to Internet sources, append the archive URL to the full citation in brackets."

The Bluebook uses Perma.cc as an example of a reliable archival tool.

Technical

Which web browsers does Perma.cc support?

Perma.cc works on Chrome, Firefox, Safari and IE10+.

Is Perma.cc open source?

Why yes, it is. The Perma.cc code is available on Github and dual licensed under the MIT and GPL licenses. Contributions are most welcome.

Does Perma.cc have an API?

Why yes, we do. It's still in its infancy, but if you're interested in learning more please check our developer guide for the details.

Are Perma.cc archives available in search engines?

We don't make archived pages available to search engines.

Does Perma.cc preserve embedded links (sometimes also called "deep links" or "secondary links")?

No. Perma.cc preserves only the targeted page. It does not drill down to capture pages that are linked on the targeted page. So for example, if you use Perma.cc to preserve a page that has 10 links on it, you would preserve that page but not the pages available at the 10 links.

Can I prevent Perma.cc from publicly displaying archives of pages from my site?

It's important to note that Perma.cc does not crawl your site like a search engine might, and it does not make its archives available in search engines. It simply saves a copy of a single page at the direction of a user, as though the user visited your page and used the "Save as ..." function of their browser.

If you don't want Perma.cc to make archives of your site available online to future readers of scholarly work, we're happy to respect your wishes.

To prevent online archives for entire sections of your site, use a configuration in your robots.txt file like the one below:

User-agent: Perma

Disallow: /private-stuff/

To prevent online archives for a single page, use one of the following meta tags:

<meta name="Perma" content="noarchive">

<meta name="robots" content="noarchive">

With either or both of these rules in place, Perma.cc will still allow the user to store the requested page in library archives, but will not display it at the perma.cc website.