SIFT is a series of actions you can take to determine the validity and reliability of claims and sources on the web.
The SIFT method, or strategy, is quick and simple and can be applied to various kinds of online content: news articles, scholarly articles, social media posts, videos, images, etc.
Each letter in SIFT corresponds to one of the Four Moves:
Investigate the source
Find better coverage
Trace claims, quotes and media to the original context
Find more details on the Four Moves from Mike Caulfield's SIFT (Four Moves), which is licensed under a Creative Commons Attribution 4.0 International License.