Facebook News Feed Algorithm History

Starting some time in June of 2019 Facebook began demoting content in the News Feed:
- With exaggerated or sensational health claims
- Attempting to sell products or services based on health-related claims

This update seeks to demote health content that might be harmful or inaccurate, Facebook references "miracle cures" in their post but it could also be any common phrasing used by MLM sellers that sell medical / health products.

Facebook did tell us that this update works by identifying common phrases used by peddlers of products with seemingly to-good-to-be-true results or of health information that may not be accurate. When the News Feed algo sees one of these phrases has been used in a post, that post then gets severely reduced reach into the News Feed.

The update appears to be post specific, meaning that it only affects one post at a time and doesn't appear to accumulate or impair a page in any other fashion (except of course losing the engagement from the impacted post). Facebook stated "If a Page stops posting this content, their posts will no longer be affected by this change."

More info:
Facebook Newsroom: Addressing Sensational Health Claims
Search Engine Journal: Facebook Updates News Feed Algorithm to Reduce Sensational Health Claims

Facebook has announced that the News Feed will now give weight to videos that inspire Loyalty, that users specifically seek out, that last at least one minute or longer, and that appear to be original works and not duplicated clips or video memes.

The Loyalty and Intent portion of this update is related to the December 2017 update where Facebook first announced such an internal measurement for video in an effort to reduce the reach of video memes, clips, and other similar content.

The Duration portion of this update is a direct reflection of Facebook's desire to monetize videos via mid-roll ads stating that "We will add more weight in ranking to videos that keep people engaged, especially on videos that are at least three minutes long."

The originality portion of this update is a follow up to an un-announced update in December of last year which was an 'update' to a best practices guide (and has been retoactively added to our timeline where Facebook said they would "prohibit monetizing this kind of content, and Pages primarily posting this content will see their distribution limited". The LIDO update takes this a step further.

More info:
Facebook Newsroom: Updates to Video Ranking
Facebook for Media: Understanding Video Distribution on Facebook

Web publishers that make money by scraping content from other sites or republishing that content with permission will now see a lot less traffic from Facebook's News Feed. This is a win for publishers who have been hammered by Facebook's updates over the past year, possibly allowing their original content to gain more visibility and removing incentives for scraper sites to steal their content.

This might also cause some alarms for content curators as it appears Facebook has built their own in-house duplicate content system and will remove offending content from the News Feed if the system feels that it is too much duplicate.

Much like Google's past problems with this vary same issue, it is unclear how Facebook will determine who the original author is and there might be cases where a small original publisher or blogger will get labeled as a scraper. Their announcement doesn't include any way to dispute this or a notification system that your site / page has been labeled as a scraper / republisher.

More info:
TechCrunch: Facebook News Feed now downranks sites with stolen content
Facebook Newsroom: Reducing Links to Low-Quality Web Page Experiences (Updated October 16th, 2018)

Facebook expanded their fact-checking system with all 27 third-party partners to 17 different countries. If an article, image, or video is found to have misinformation by these partners and Facebook's machine learning system this will hinder its ability to gain reach in the News Feed.

The fact-checking system has a variety of components. One way Facebook told us that it works is by leveraging optical character recognition to pull text from images / photos. "we use optical character recognition (OCR) to extract text from photos and compare that text to headlines from fact-checkers’ articles."

While Facebook's FAQ's on fact-checking mention a dispute option, we have yet to see evidence of this notification and dispute system for fact-checked content in the wild and there are zero mentions of a way for satire providers like The Onion to bypass this system.

More Info:
Facebook Newsroom: Expanding Fact-Checking to Photos and Videos
Facebook Newsroom: Seeing the Truth
Facebook Ads Help Center: FAQ's on Facebooks Fact-Checking

This update will require pages with a 'large' U.S. based audience to undergo additional verification which would confirm the country that person lives in and will require two-factor authentication. Facebook didn't define what they mean by a 'large' audience, but from the notifications we've seen essentially an active page with about 30,000 to 40,000 followers would qualify and based on recent news reports of pages with 20,000+ followers causing issues with political events we estimate Facebook could require pages with around 20,000 likes/followers to obtain the additional verification.

Facebook told us that the additional verification would need to be completed by August 28th, 2018.

This will impact the News Feed as pages that don't obtain the additional authorization will likely be unpublished or deleted, opening up coveted News Feed access to more authentic pages.

More Info / Press
Facebook Newsroom: New Authorization for Page
The Verge: A shadowy influence campaign on Facebook is targeting liberal activists
Facebook Newsroom: Removing Bad Actors on Facebook

Facebook increased the visibility of local news outlets in the News Feed in an apparent attempt to help fight fake news and to win pr points during the #DeleteFacebook movement and the Cambridge Analytica data leak scandal. The announcement was made on March 26th, 2018 but no definitive date was set on when this update would go live.

More Info / Press
Facebook Newsroom: More Local News on Facebook, Globally Time.com: Your Facebook Feed Is About to Have Much More Local News

Updates
- This update has yet to be seen in the wild.

- No publishers have mentioned being impacted by this update yet.

- There are no timelines for this update to be fully rolled out.

This is a full implementation of a test Facebook started on October 5th, 2017 to see if providing additional information aided users in assessing the credibility of a news story that appeared in the News Feed. This test was one of several in response to the outcry that Facebook's technology was fostering and helping spread Fake News around the globe.

The update will now display other pieces of information along with an article from a publisher under an icon that reads "About this article". Once clicked the icon will reveal things like:

- A snippet from the Publisher's Wikipedia page & a link to the page
- A section of related articles from other publishers on the same topic
- A map showing where the article has been shared
- A section of recent articles from the publisher
- A section that shows all friends who have shared the same article

More Information / Press
Facebook Newsroom: News Feed FYI: Helping People Better Assess The Stories They See In News Feed

Facebook ended its 5 month long dual-feed test stating that users had said they were less satisfied. The Explore Feed test broke the News Feed into two components for selected users, a main feed and the 'explore feed'. The Explore Feed was largely comprised of content posted by fan pages (i.e. content from publishers). The stated purpose of the test was to show more content from friends and family, but with the Friends and Family update to the single version of the News Feed announced on January 11th, the Explore Feed was largely redundant.

More Information / Press
Search Engine Journal: Facebook Ends News Feed Test – How this Impacts Public Pages

Facebook announced that the News Feed would prioritize updates from friends and family. They stated that the update would likely mean less engagement on the platform, but Mark Zuckerberg stated that he believes the engagement would be more valuable to users. This update is likely another response to allegations that Facebook's platform played a pivotal role in the 2016 USA Elections. The update was disastrous for publishers who had grown to rely on or were fully dependent on traffic from Facebook. One such publisher "LittleThings" shut down completely while others laid off staff members citing "industry changes over the past few months". Later one report would state that this update increased the cost of Facebook Ads 122%, the highest increase in ad costs on the platform the previous 2 years.

More info / Press
Recode: Facebook is making a major change to the News Feed that will show you more content from friends and family and less from publishers
LittleThings: Goodbye from LittleThings
Forbes: Facebook's Latest Algorithm Change: Here Are The News Sites That Stand To Lose The Most
Mashable: Facebook to publishers: The News Feed algorithm isn't why you're failing [Response about LittleThings]
CNN Money: Vox Media to lay off around 50 staffers in latest round of industry cuts
Business Insider: Facebook ad prices are rising after the News Feed change
Recode: Facebook ad costs spiked higher after a big change to its News Feed algorithm

We're busy looking up changes, updates, and commentary for the Facebook News Feed over this time period. There are thousands of documents, tests, announcements, research projects, news reports, and blog posts to sort through. We'll be updating this page periodically.

Please check back for more later.
Do you have any information about the Facebook News Feed algorithm you think we should post? Use the contact us page in the menu above to send us a message and we'll review your submission, vet the information, and get it added if we believe it is a valuable addition to the Facebook News Feed Algorithm History.

Facebook began allowing users to control who would be able to see specific posts they made. The default categories were public, friends of friends, and friends. The update also allowed Facebook users to share content with a specific list of friends based on "friends lists" which was launched a few months earlier in December of 2007.

This update adjusted content seen in the News Feed by users indirectly as content that may have been shown to a user would be restricted based on the settings of each post.

More Information / Press
Official Blog Post: Announcement: Facebook Updates Privacy Controls

Facebook launched Facebook Ads with 12 marquee partners. This signaled the first time ads would be seen in the News Feed. The partners that helped launch Facebook Ads included The Coca-Cola Company, Verizon, Blockbuster, CBS, Chase, Sony Pictures, Epicurious.com, flip.com, Crest Whitestrips, Dove Cream Oils, Herbal Essences, The New York Times Co., and Saturn.

More Information / Press
Official Blog Post: Facebook Ads Launches with 12 Landmark Partners

With mounting backlash against News Feed, users were informed that Facebook would protect their privacy and make updates to alleviate their concerns. Facebook updated News Feed and Mini Feed to allow users to control what would be visible in each feed on the 8th of September 2006.

More Information / Press
Mashable: Facebook Gets Egg on its Face, Changes News Feed Feature

Facebook users began calling for boycotts against the social media website and make protest pages with some growing to at least 10,000 users. The complaints and calls for boycotts recieved a quick reply from Mark Zuckerberg in an open letter to the community.

More Information / Press
TechCrunch: Facebook Users Revolt, Facebook Replies
The Register: Users protest over 'creepy' Facebook update

Facebook launched News Feed and Mini Feed (i.e. the Wall). At the time the social media website had 9.5 million users, according to TechCrunch. The update was incredibly unpopular among Facebook users and prompted an open letter from Mark Zuckerberg himself to the community. Up until this point in time users had to visit their friends pages one by one to see updates.

More Information / Press
TechCrunch: New Facebook Redesign More Than Aesthetic