Research Guides: Government Information: Find Missing Goverment Information

Find Copies of Government Web Pages and Data

Web sites are changeable by their nature, and new presidential administrations often change information presented on their web sites. However, the large number of U.S. Government web pages and data sets that have been removed and edited since the beginning of the 2025 Trump administration is unprecedented. These links can help you find copies of previous versions of web pages, web sites, and data sets. There are also resources for saving copies of pages that might be removed or changed in the future.

Wayback Machine
Use the Wayback Machine, part of the Internet Archive, to find copies of web pages that have been changed or removed from the web. You can also use it to save copies of web pages that you want to preserve, with archive links.
End of Term Web Archive
The End of Term Web Archive captures and saves U.S. Government websites at the end of presidential administrations.
CDC Datasets (Internet Archive)
CDC datasets uploaded before January 28, 2025.
Climate and Economic Justice Screening Tool (Archives)
Unofficial copy.
Data.gov Archive
A complete archive of federal public datasets linked by data.gov, starting from 2024. Provided by Harvard's Library Innovation Lab Team.
Data Rescue Project: Current Efforts
A comprehensive list of current data rescue projects and events.
DataLumos - ICPSR
A large repository of government data.
Public Environmental Data Project
Preserves federal environmental data.

Statista This link opens in a new window
Statista, a library subscription database, includes statistics, demographics, and data, including from some U.S. government sources.

Save Web Pages

Wayback Machine
Use the Wayback Machine, part of the Internet Archive, to save copies of webpages that might change or be removed from their sites. No account needed. See tips.
Perma.CC
A service for preserving links that you cite. Account required, see link for details.

How to Save a Web Page Using the Wayback Machine

Go to the Wayback Machine
Copy the page URL into the Save Page Now form:
Select options and click Save Page. It may take a few minutes.
Copy and save the snapshot URL provided:

News

News about government web site and data deletions and changes, for context:

Thousands of U.S. Government Web Pages Have Been Taken Down Since Friday
New York Times, February 2, 2025.
A Look at Federal Health Data Taken Offline
KFF, February 2, 2025.
Some federal health websites restored, others still down, after data purge
NPR, February 6, 2025.
Judge orders restoration of federal health websites
NPR, February 11, 2025
Judge orders restoration of federal health websites
NPR, February 11, 2025