Part two · The platforms · 04 of 08

YouTube: what the platform says decides whether a video is shown

Four surfaces, four different weightings, and at least four overlapping official documents whose signal lists do not agree with each other. Almost none of them carry a date.

  • 80bn

    Signals YouTube says its recommendation system learns from

    YouTube Help, no date 1

  • 200bn

    Daily Shorts views, stated January 2026. Counted on the looser post-2025 basis

    CEO letter 2

  • 20m

    Videos uploaded daily

    YouTube press page, no date 3

  • $11.1bn

    YouTube ads revenue, Q2 2026, up 13 percent year on year

    Alphabet, 22 July 2026 4

  • 1.7bn

    Unique viewers of World Cup content during the 2026 tournament

    Alphabet, 22 July 2026 4

  • An AI label changes nothing

    YouTube states directly that "a disclosure label alone does not change how a video is recommended or whether it's eligible to earn money." 5

  • The July 2025 AI crackdown was a rename

    YouTube called it "a minor update" and said the content "has always been ineligible." 6

  • No published user number

    The 2.5 billion monthly figure appears nowhere in YouTube's current statistics. There is no citable primary source for it. 3

  • Not the second biggest search engine

    No YouTube, Google or Alphabet source says this. A video SEO tool vendor publishes a debunk of it. 7

  1. YouTube Help, How YouTube recommendations work . No date on the page. Retrieved 8 August 2026. 1st
  2. YouTube Blog, Neal Mohan's 2026 Letter , 21 January 2026. 1st
  3. YouTube Blog, press page, YouTube by the numbers . No date on the statistics block. Absence of a monthly user figure verified 8 August 2026. 1st
  4. Alphabet Inc., Second Quarter 2026 Results , 22 July 2026. 1st
  5. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  6. YouTube Help, YouTube channel monetization policies , inline update dated 15 July 2025. 1st
  7. tubics, YouTube 2nd Biggest Search Engine, The Myth That Just Won't Die . 2nd

Four surfaces, weighted differently.

YouTube states plainly that "different YouTube features rely on certain recommendation signals more than others." Here is what it says about each one. 8

Surface What YouTube publishes about it
Home "A mixture of personalized recommendations, subscriptions, and the latest news and information." 9 In creator documentation: selection is based on "how well your video has interested and satisfied similar viewers, among other factors" plus "watch and search history." 10
Up Next "Our system uses the video you're currently watching as the main signal when suggesting a video to play next." 8 Suggested videos "are ranked to offer your audience videos they're most likely to watch next." 10
Search Three named pillars. Relevance: "how well the title, tags, description, and video content match your search query." Engagement: "overall user engagement, such as the watch time of a particular video for a particular query." Quality: signals "that can help determine which channels demonstrate expertise, authoritativeness, and trustworthiness." 11
Shorts feed "Shorts are ranked based on their performance and relevancy to that individual viewer." The system uses "the signals for % of viewers who chose to view, avg. view duration and avg. % viewed to inform ranking," then "whether or not viewers enjoyed the Short using likes and post-watch survey results." 12 YouTube adds that the feed "may tune up on the recency of content." 13

The eight primary signals, as published

Watch history. Search history. Channel subscriptions. Likes. Dislikes. "Not interested" feedback. "Don't recommend channel" feedback. Satisfaction surveys. 8

Note what is not on that list: click through rate, upload frequency, video length, tags, and posting time. A different official page does name click through rate. See the next page.

Search quality is E-A-T, not E-E-A-T

YouTube's search page names expertise, authoritativeness and trustworthiness. It does not include experience, the fourth element Google added to its own web search framework in December 2022. The two frameworks are not the same and are frequently conflated. 11

  1. YouTube Help, How YouTube recommendations work . No date. 1st
  2. YouTube, How YouTube Works, Recommendations . No date. 1st
  3. YouTube Help, YouTube performance FAQ and Troubleshooting . No date. 1st
  4. YouTube Help, How YouTube search works . No date. 1st
  5. YouTube Help, Search and discovery tips, Shorts . No date. 1st
  6. YouTube Help, Good to know about recommendations . No date. All retrieved 8 August 2026. 1st

YouTube's own documents do not agree.

There are at least four live official pages describing the same recommendation system. Their signal lists are not identical, and none of them carries a date.

Page What it says the signals are Where it differs
How YouTube recommendations work Eight primary signals, closed list. Watch history, search history, subscriptions, likes, dislikes, two feedback controls, satisfaction surveys. Does not name click through rate at all.
YouTube's Recommendation System Split into viewer personalisation signals and content performance signals. Names click through rates explicitly. A different taxonomy entirely. Does not break down by surface.
Performance FAQ (creator facing) Discusses absolute and relative watch time as the discovery signals. Does not name click through rate as a ranking input. Gives a two factor description of search ranking.
How YouTube search works (viewer facing) Three pillars: relevance, engagement, quality. Relevance includes tags . Includes the quality pillar and tags, both absent from the creator facing version.

Why this matters more than it looks

Every YouTube guide in circulation quotes one of these pages as though it were the authoritative list. There is no authoritative list. Which page an article happens to quote decides whether it tells you click through rate is a ranking factor.

  1. All four pages retrieved and compared 8 August 2026: YouTube Help How YouTube recommendations work , YouTube's Recommendation System , YouTube performance FAQ and Troubleshooting , How YouTube search works , plus How YouTube Works, Recommendations . None displays a publication or last-updated date. 1st

Watch time, clicks and satisfaction.

YouTube has published the history of how these three came to be used. It has never published a ranking between them.

The one account YouTube has published

"A number of signals build on each other to help inform our system about what you find satisfying: clicks, watchtime, survey responses, sharing, likes, and dislikes."

Cristos Goodrow, VP of Engineering, 15 September 2021 15

The same post sets out the progression. Clicking "provides a strong indication that you will also find it satisfying," but "clicking on a video doesn't mean you actually watched it." Watch time then gives "personalized signals." Beyond that YouTube measures "valued watchtime," and states: "Only videos that you rate highly with four or five stars are counted as valued watchtime." 15

Absolute against relative watch time

"Broadly speaking, relative watch time is more important for short videos and absolute watch time is more important for longer videos." YouTube adds: "Ultimately we want both short and long videos to succeed, so we encourage you to make your videos the appropriate length depending on the content." 16

  1. YouTube Blog, On YouTube's recommendation system , Cristos Goodrow, 15 September 2021. 1st
  2. YouTube Help, YouTube performance FAQ and Troubleshooting . No date. 1st
  3. YouTube Help, Check your YouTube impressions and watch time . No date. Absence of any benchmark verified 8 August 2026. 1st

Shorts, and the sentence everyone over-reads.

YouTube publishes a specific reassurance about Shorts and long form. It says less than it is usually reported to say.

"Shorts performance doesn't negatively impact long form Video recommendations. Shorts can help with audience discovery but can't hurt your Video performance."

YouTube Help, Search and discovery tips, Shorts 18

The six surfaces YouTube lists for Shorts

Shorts tab. Home tab. Subscriptions tab. Search. Sounds and hashtags. Trends page. 18

What the Shorts feed ranks on

Percentage of viewers who chose to view. Average view duration. Average percentage viewed. Then likes and post-watch survey results. 18 YouTube separately notes the feed "may tune up on the recency of content, making it great for the discovery of new content." 19

Length

Up to three minutes. 20

  1. YouTube Help, Search and discovery tips, Shorts . No date. 1st
  2. YouTube Help, How YouTube recommendations work and Good to know about recommendations . No dates. 1st
  3. YouTube Help, Get started creating YouTube Shorts . No date. All retrieved 8 August 2026. 1st

A Shorts view stopped meaning what it meant, on 31 March 2025.

Two metrics now exist where there was one. Any Shorts view figure that crosses this date is comparing two different things.

Metric What it counts
Views
(since 31 Mar 2025) 		"The number of times your Short starts to play or replay, with no minimum watch time requirement." 21
Engaged views
(introduced 24 Apr 2025) 		"Will reflect the previous view-counting methodology." 21 YouTube describes it as "how many viewers chose to continue watching your video." 22

Money did not move with the metric. Both Partner Programme eligibility and Shorts ad revenue sharing still run on engaged views. 22 For payment, "YouTube uses eligible 'Engaged views'," and non-original Shorts are excluded, specifically "unedited clips from others' movies or TV shows, reuploading other creators' content," and "compilations with no original content added." 23

Where the change is actually documented

The best dated primary source is the YouTube Analytics and Reporting API revision history, with entries on 26 March, 24 April and 24 June 2025. The consumer facing Help pages describing the same change carry no dates at all. 21

  1. Google for Developers, Revision History, YouTube Analytics and Reporting APIs . Entries dated 26 March, 24 April and 24 June 2025. 1st
  2. YouTube Help, Get started creating YouTube Shorts . No date. 1st
  3. YouTube Help, YouTube Shorts monetization policies . No date. 1st
  4. YouTube Blog, Neal Mohan's 2026 Letter , 21 January 2026. 1st

The money gates, and what they exclude.

Two tiers, published on two different pages, neither of which carries a date. A page defining commercial thresholds with no last-updated stamp is a documentation gap worth knowing about.

Tier Threshold as published
Full Partner Programme
Ad revenue 		1,000 subscribers plus either 4,000 valid public watch hours in 12 months or 10 million valid public Shorts views in 90 days. 25
Expanded tier
Fan funding and Shopping 		500 subscribers plus 3 valid public uploads in 90 days, plus either 3,000 watch hours in 12 months or 3 million Shorts views in 90 days. 26

The trap in the first row: "any public watch hours from Shorts views in the Shorts Feed won't count towards the 4,000 public watch hours threshold." 25 Shorts and long form run on separate counters and neither tops up the other.

The 500 subscriber tier does not appear on the main eligibility page at all. Anyone reading only that page gets an incomplete answer. 25 , 26

What is published as not monetisable

Content "that appears to be produced using a template or where each video doesn't deliver creative, educational, or other value to the viewer." "Similar or repetitive content with low educational value." And, named directly: "AI-generated content made with generic or unoriginal templates giving the impression of mass production without adding the creator's original, authentic insights or perspective." 27

  1. YouTube Help, YouTube Partner Program overview and eligibility . No date. 1st
  2. YouTube Help, Overview of the expanded YouTube Partner Program . No date. 1st
  3. YouTube Help, YouTube channel monetization policies , inline update dated 15 July 2025. Page carries no overall date. All retrieved 8 August 2026. 1st

AI content, and the clearest statement any platform has made.

Of the five platforms covered so far, YouTube is the only one that has addressed the question directly rather than leaving it to be inferred.

"It's important to note that a disclosure label alone does not change how a video is recommended or whether it's eligible to earn money."

YouTube Blog, 27 May 2026 28

The Help documentation says the same: "Disclosing AI content won't limit a video's audience or impact its eligibility to earn money." It also states the consequence of not disclosing: creators who consistently do not may face "manual application of a label, or penalties from YouTube, including removal of content or suspension from the YouTube Partner Program." 29

What has to be disclosed, and what does not

Disclosure applies where "realistic content, content a viewer could easily mistake for a real person, place, scene, or event, is made with altered or synthetic media." YouTube is explicit about the exemptions: it does not require disclosure of content that is "clearly unrealistic, animated, includes special effects, or has used generative AI for production assistance," and names "generating scripts, content ideas, or automatic captions" as exempt. 30

What changed in May 2026

The label moved from the expanded description to directly below the player on long form, and to an overlay on the video itself for Shorts. YouTube also began "rolling out new internal signals to help identify AI-generated content." 28

  1. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  2. YouTube Help, Disclosing use of GenAI content . No date. Page title changed from "altered or synthetic content", no date given for the rewrite. 1st
  3. YouTube Blog, How we're helping creators disclose altered or synthetic content , 18 March 2024. Label placement in this post is superseded by source 1. 1st

Six claims checked against the source.

Five of the six have no primary source. Two of them are among the most repeated statements in all of marketing.

The claim Verdict What the source actually says
YouTube is the world's second biggest search engine No source No YouTube, Google or Alphabet source states this. YouTube publishes no search volume figure at all: its own statistics block lists uploads, Shorts views, streaming rank and localisation, and no search metric. A video SEO tool vendor publishes a debunk of the claim. 31 , 32
YouTube banned AI content from monetisation in July 2025 Misreported YouTube called it "a minor update" to naming, said the content "has always been ineligible," and stated "there is no change to our reused content policy." The words ban, crackdown and slop appear nowhere on the page. 33
The algorithm suppresses AI content Contradicted YouTube states the opposite about labels: "a disclosure label alone does not change how a video is recommended or whether it's eligible to earn money." 34 The monetisation exposure is a money gate on unoriginal and template output, not a recommendation gate. 33
Shorts and long form have separate algorithms Beyond the source YouTube says Shorts performance "doesn't negatively impact long form Video recommendations." That is non-interference. It has never said the two run on separate systems, and its overview lists the Shorts feed as one surface of one system. 35
YouTube has 2.5 billion monthly users No current source The figure is absent from YouTube's current press statistics, the January 2026 CEO letter and Alphabet's Q2 2026 results. It circulates on statistics aggregators. There is at present no citable primary source for a YouTube monthly user number. 32
Aim for a click through rate of 2 to 10 percent Not a YouTube number YouTube's own click through rate page defines the metric and publishes no benchmark. The range comes from tool vendor blogs. 36
  1. tubics, YouTube 2nd Biggest Search Engine, The Myth That Just Won't Die . 2nd
  2. YouTube Blog, press page. Absence verified 8 August 2026 against the page, the 2026 CEO letter and Alphabet Q2 2026. 1st
  3. YouTube Help, YouTube channel monetization policies , inline update 15 July 2025. 1st
  4. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  5. YouTube Help, Search and discovery tips, Shorts , and How YouTube recommendations work . No dates. 1st
  6. YouTube Help, Check your YouTube impressions and watch time . No date. 1st

Questions people ask about this chapter

Every answer below is the chapter's own wording, with a link to the page it sits on.

Is click through rate a YouTube ranking factor?

Note what is not on that list: click through rate, upload frequency, video length, tags, and posting time.

Read the full answer
Why does YouTube advice contradict itself?

Any citation to the old search URL is stale, and the two pages that remain are now inconsistent with each other.

Read the full answer
Do Shorts have their own separate algorithm?

Anyone telling you Shorts have a separate algorithm is going beyond every published source.

Read the full answer
Why did my Shorts views jump in 2025?

Views went up on 31 March 2025 without anybody watching anything more.

Read the full answer
Will AI-made videos stop me getting paid on YouTube?

Mass-produced template output is not monetisable whether or not AI made it.

Read the full answer

Sources

  1. YouTube Help, How YouTube recommendations work . No date on the page. Retrieved 8 August 2026. 1st
  2. YouTube Blog, Neal Mohan's 2026 Letter , 21 January 2026. 1st
  3. YouTube Blog, press page, YouTube by the numbers . No date on the statistics block. Absence of a monthly user figure verified 8 August 2026. 1st
  4. Alphabet Inc., Second Quarter 2026 Results , 22 July 2026. 1st
  5. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  6. YouTube Help, YouTube channel monetization policies , inline update dated 15 July 2025. 1st
  7. tubics, YouTube 2nd Biggest Search Engine, The Myth That Just Won't Die . 2nd
  8. YouTube Help, How YouTube recommendations work . No date. 1st
  9. YouTube, How YouTube Works, Recommendations . No date. 1st
  10. YouTube Help, YouTube performance FAQ and Troubleshooting . No date. 1st
  11. YouTube Help, How YouTube search works . No date. 1st
  12. YouTube Help, Search and discovery tips, Shorts . No date. 1st
  13. YouTube Help, Good to know about recommendations . No date. All retrieved 8 August 2026. 1st
  14. All four pages retrieved and compared 8 August 2026: YouTube Help How YouTube recommendations work , YouTube's Recommendation System , YouTube performance FAQ and Troubleshooting , How YouTube search works , plus How YouTube Works, Recommendations . None displays a publication or last-updated date. 1st
  15. YouTube Blog, On YouTube's recommendation system , Cristos Goodrow, 15 September 2021. 1st
  16. YouTube Help, YouTube performance FAQ and Troubleshooting . No date. 1st
  17. YouTube Help, Check your YouTube impressions and watch time . No date. Absence of any benchmark verified 8 August 2026. 1st
  18. YouTube Help, Search and discovery tips, Shorts . No date. 1st
  19. YouTube Help, How YouTube recommendations work and Good to know about recommendations . No dates. 1st
  20. YouTube Help, Get started creating YouTube Shorts . No date. All retrieved 8 August 2026. 1st
  21. Google for Developers, Revision History, YouTube Analytics and Reporting APIs . Entries dated 26 March, 24 April and 24 June 2025. 1st
  22. YouTube Help, Get started creating YouTube Shorts . No date. 1st
  23. YouTube Help, YouTube Shorts monetization policies . No date. 1st
  24. YouTube Blog, Neal Mohan's 2026 Letter , 21 January 2026. 1st
  25. YouTube Help, YouTube Partner Program overview and eligibility . No date. 1st
  26. YouTube Help, Overview of the expanded YouTube Partner Program . No date. 1st
  27. YouTube Help, YouTube channel monetization policies , inline update dated 15 July 2025. Page carries no overall date. All retrieved 8 August 2026. 1st
  28. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  29. YouTube Help, Disclosing use of GenAI content . No date. Page title changed from "altered or synthetic content", no date given for the rewrite. 1st
  30. YouTube Blog, How we're helping creators disclose altered or synthetic content , 18 March 2024. Label placement in this post is superseded by source 1. 1st
  31. tubics, YouTube 2nd Biggest Search Engine, The Myth That Just Won't Die . 2nd
  32. YouTube Blog, press page. Absence verified 8 August 2026 against the page, the 2026 CEO letter and Alphabet Q2 2026. 1st
  33. YouTube Help, YouTube channel monetization policies , inline update 15 July 2025. 1st
  34. YouTube Blog, Improving AI labels for viewers and creators , 27 May 2026. 1st
  35. YouTube Help, Search and discovery tips, Shorts , and How YouTube recommendations work . No dates. 1st
  36. YouTube Help, Check your YouTube impressions and watch time . No date. 1st