The Instagram Algorithm Encyclopedia

Topics · Signal

User attributes

Contents
  1. Information used to personalize content
  2. Advertising and audience demographics
  3. Age determines protective settings
  4. How it has changed
  5. See also
  6. References

User attributes are information about people and their accounts, such as age, interests and activity, that Instagram uses to personalize content and ads and provide age-appropriate experiences.123 Instagram uses viewers’ follows, likes, saves and interactions with accounts to help match creators’ content with people likely to be interested in it.34 Viewers can influence recommendations by marking content as not interesting and adjusting their comfort level with .4 Creators with public accounts can use Insights to see , including countries, cities, age ranges and gender breakdowns.5 In September 2024, Adam Mosseri explained that automatically apply protections such as private accounts, messaging restrictions and content limits, and that teens under 16 need parental permission to make these settings less protective.67

Information used to personalize content

Instagram’s Help Center says suggested posts use a viewer’s follows, likes, saves, reposts and comments, along with their history of connecting with the posting account or similar accounts.3 These viewer attributes are distinct from information about the post, such as its popularity, publication time and location, and information about the account, such as how often people have recently interacted with it.3 Mosseri describes preferences such as watching videos rather than liking photos, while Meta’s Transparency Center lists more detailed measures, including time spent viewing an author’s content, profile visits and scrolling past posts.89 Instagram also considers whether someone uses the web, Android or iOS, both for suggested posts and for Search.310 For Search, Meta’s Transparency Center also lists connections between accounts, previous profile visits, the words someone searches for and how people making the same search in their country respond to suggested keywords.10 Activity on a viewer’s profile can inform Instagram’s suggested posts.3

Advertising and audience demographics

Instagram uses user attributes for advertising: its Help Center says ads may reflect Facebook information and interests, activity on a linked Facebook account, and content posted or interacted with on Instagram and Facebook.2 Other examples include accounts followed and posts liked on Instagram, activity on third-party websites and apps, interactions with AI products depending on the region, and feedback indicating interest or disinterest in ads.2 Instagram’s Help Center describes audience summaries in Insights for public accounts: the Viewers measure counts unique accounts that saw content and can include top countries, cities, age ranges and a gender breakdown.5

Age determines protective settings

Age is a user attribute that determines Instagram’s settings, which its Help Center says automatically apply to accounts belonging to people aged 13–17.6 Mosseri describes protections including private accounts by default, restrictions on who can send messages, less inappropriate content and a reminder to leave Instagram after an hour of daily use.7 Teens under 16 need a parent’s or guardian’s permission to make the settings less protective, while those aged 16–17 can change them themselves unless their account is supervised.6 A parent or guardian must supervise the account before approving or denying requests to reduce protections.6

How it has changed

  1. 2021

    August

    Meta’s Newsroom announced that Instagram had started asking people for their birthday if they had not previously supplied it.1

  2. August

    Instagram reported that it had restricted advertiser targeting options for audiences under the age of 18.1

  3. September

    Mosseri acknowledged the difficulty of relying on companies to verify the ages of children who do not have identification documents.11

  4. 2022

    June

    Mosseri announced that Instagram’s age-verification approach now included ID upload, and video selfies with Yoti.12

See also

References

  1. 1Asking People for Their Birthday on InstagramMeta Newsroom · Aug 30, 2021
  2. 2How Instagram decides which ads to show youInstagram Help Center
  3. 3How Instagram determines which posts appear as suggested postsInstagram Help Center
  4. 4What Creators Need To Know About Instagram RecommendationsInstagram for Creators · Aug 30, 2022
  5. 5About Instagram insightsInstagram Help Center
  6. 6About Instagram Teen AccountsInstagram Help Center
  7. 7GMA EXCLUSIVE: @Instagram CEO @mosseri talks about the app's new "Teen Accounts" experience, which is aimed at users under 18.Adam Mosseri · Sep 17, 2024
  8. 8How the “Algorithm” WorksAdam Mosseri · Jun 23, 2021
  9. 9Instagram Feed Recommendations AI system ("suggested posts")Meta Transparency Center · Jun 29, 2026
  10. 10Instagram Search AI systemMeta Transparency Center · Jun 23, 2026
  11. 11We’re pausing “Instagram Kids”. This was a tough decision.Adam Mosseri · Sep 27, 2021
  12. 12Age VerificationAdam Mosseri · Jun 23, 2022

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Unofficial. Not affiliated with Instagram or Meta. AI answers from the sources shown.