Jump to content
The internet we were promised
June 23: An important update for readers in Japan.

You deserve an explanation, so please don't skip this 1-minute read. It's Monday, June 23, and our fundraiser won't last long. If you've lost count of how many times you've visited Wikipedia this year, we hope that means it's given you at least ¥300 of knowledge. Please join the 2% of readers who give what they can to help keep this valuable resource ad-free, up-to-date, and available for all.

After nearly 25 years, Wikipedia is still the internet we were promised—an oasis of free and collaborative knowledge. By visiting Wikipedia today, you're choosing a free and fair internet: a space where you can find facts you need without being distracted by ads or the agendas of wealthy owners.

Most readers don't donate, so your gift matters. If Wikipedia provides you with ¥300 of knowledge, please donate ¥300 right now—or consider a monthly gift to help all year long. Thank you.

Proud host of Wikipedia and its sister sites

How often would you like to donate?
Support Wikipedia year-round
Thanks for your generous support
Please select an amount (JPY)
The average donation in Japan is around ¥800.
Please select a payment method
Please select an amount (minimum ¥156)
We cannot accept donations greater than 3900000 JPY through our website. Please contact our major gifts staff at benefactors@wikimedia.org.
Please select a payment method
Can we follow up and let you know if we need your help again? The support and advice we get from donors in Japan is priceless, but many donors don't let us stay in touch. Will you commit today, this Monday, to staying in touch with the Wikimedia Foundation?
Sorry to hear that. We don't email often; would you consider changing your mind?
Thanks for changing your mind! We’ll respect your inbox.
Your information is handled in accordance with our donor privacy policy, and each email you receive will include easy unsubscribe options.
Please select an email option
Almost done: Please, make it  monthly.
Monthly support is the best way to ensure that Wikipedia keeps thriving.

Thank you for your support!

Please select an amount (minimum ¥156)
We cannot accept donations greater than 3900000 JPY through our website. Please contact our major gifts staff at benefactors@wikimedia.org.
How would you like to be reminded?
We can send you an email or text message reminder to donate later.
🎉 Thank you for donating recently! 🎉
Your support means the world to us. We'll hide banners in this browser for the rest of our campaign.

Perma.cc

From Wikipedia, the free encyclopedia
Perma.cc
Page for archiving new links
Country of originUnited States of America
OwnerHarvard Library Innovation Lab
Key peopleJack Cushman
URLhttps://perma.cc
LaunchedSeptember 2013[1][2]
Written inPython

Perma.cc is a web archiving service for legal and academic citations founded by the Harvard Library Innovation Lab in 2013.[3]

Concept

[edit]

Perma.cc was created in response to studies showing high incidences of link rot in both academic publications and judicial opinions. By archiving copies of linked resources, and providing them with a permanent URL, Perma.cc is intended to provide longer-term verifiability and context for academic literature and caselaw. Perma.cc is administered by a network of academic and government libraries.

In 2016, Harvard received a $700,000 grant from the Institute for Museum and Library Services to expand development of Perma.cc.[4]

Design

[edit]
The header shown on an archived page

Perma.cc initiates page saves by user request only, it does not crawl the web and save pages like the Wayback Machine. A user account is required to save a page. Its target audience are organizations such as libraries, academic journals, law courts and school faculty. It provides support for organizational membership and administration of user accounts. Metadata such as notes can be added which are viewable to members within an organization. Pages can be made public or private within an organization. In 2017, Perma.cc added individual accounts limited to 10 free page saves per month, and commercial option for non-academic organizations to create institutional accounts.[5][6] In January 2019, free individual accounts stopped receiving 10 free links on a recurring basis each month.[7]

Perma.cc saves both a WACZ file and a PNG screenshot of a desired webpage.[8] Capture is achieved with Scoop,[8] a single-page focused web archiving program created by the Library Innovation Lab.[9] WARC playback is handled by ReplayWeb.page.[10][11]

Perma.cc has an API for functions such as adding or deleting pages.[12] Perma.cc is part of the Memento network; thus, all public pages can be searched for (by URL) using the Memento API.[13]

See also

[edit]

References

[edit]
  1. ^ Chant, Ian. "Perma.cc Aims to Bring Staying Power to Online Legal Citations". Library Journal. Archived from the original on 3 October 2013. Retrieved 6 February 2015.
  2. ^ Phillips, Matt (24 September 2013). "Perma.cc". Harvard Library Innovation Lab Blog. Archived from the original on 25 September 2013. Retrieved 6 February 2015.
  3. ^ Lepore, Jill (26 January 2015). "What the Web Said Yesterday". The New Yorker. Retrieved 27 January 2015.
  4. ^ "Harvard's Perma.cc receives grant to expand its tools for saving sources on the Web". Harvard Law Today. April 14, 2016. Retrieved February 24, 2018.
  5. ^ "Perma.cc for individual users". Retrieved March 11, 2017. Anyone can create a free, individual Perma.cc account, which will allow you to create ten links per month.
  6. ^ "Websites change. Perma Links don't".
  7. ^ "Introducing Individual Account Subscription Tiers for Perma". Perma.cc Blog. 2019-01-07. Retrieved 2019-03-04.
  8. ^ Jump up to: a b "New Release: High Fidelity Capture Engine for Witnessing the Web 🍨". Perma.cc Blog. 2023-03-28. Retrieved 2025-03-28.
  9. ^ harvard-lil/scoop, Harvard Library Innovation Laboratory, 2025-03-26, retrieved 2025-03-28
  10. ^ "New Playback Software Improves Fidelity of your Perma Links". Perma.cc Blog. 2022-08-17. Retrieved 2025-03-28.
  11. ^ Kreymer, Ilya (2022-08-17). "Perma.cc Upgrades to ReplayWeb.page". Webrecorder Blog. Retrieved 2025-03-28.
  12. ^ "Perma.cc API for developers". Perma.cc. Retrieved March 11, 2017.
  13. ^ "Memento Depot - perma.cc". Memento. Retrieved March 11, 2017.
[edit]