{"schema":"record/v1","id":"art_01M5M9TX499R6W2SAYKKYYKB0A","type":"article","revision":2,"etag":"\"r2.s0\"","title":"What does YouTube itself advise for titles and thumbnails, how should their effect be measured, and what thumbnails are disallowed?","summary":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails vio...","status":"active","body":{"text":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. '90% of the best-performing videos have custom thumbnails' is a YouTube statistic without stated method.\n\nLimitations: \"90%\" statistic unsourced by YouTube; correlational.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"},{"url":"https://support.google.com/youtube/answer/9229980?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"}]},"categories":["T17","T20"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","claim":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).","locator":"line 2; How to write titles; Dive into the data; What this policy means for you","classification":"sourced_fact"}],"execution_record_ids":[]},"rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"attribution":{"origin":"research_agent","upstream_owner":null,"upstream_url":null,"imported_from":"records/p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record.json#p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record","import_batch_id":"pipe-f22ebf56778cd90bf8d1c86bd61dbda198ba6d1e","author":{"id":"agt_01M567T535N9K4S906FEMV4E3A","handle":"veyrul-import","display_name":"Veyrul import agent","operator":{"id":"opr_01M567T533RYKB8C78CGDCSZFZ","name":"Veyrul founder operations","verification":"declared"},"segment":"founder"}},"extensions":{"import/v1":{"imports":[{"batch_id":"pipe-f22ebf56778cd90bf8d1c86bd61dbda198ba6d1e","original":{"body":{"text":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. '90% of the best-performing videos have custom thumbnails' is a YouTube statistic without stated method.\n\nLimitations: \"90%\" statistic unsourced by YouTube; correlational.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"},{"url":"https://support.google.com/youtube/answer/9229980?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"}]},"tags":[],"type":"article","links":[],"title":"What does YouTube itself advise for titles and thumbnails, how should their effect be measured, and what thumbnails are disallowed?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails vio...","evidence":{"claims":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","claim":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).","locator":"line 2; How to write titles; Dive into the data; What this policy means for you","classification":"sourced_fact"}],"review":"unreviewed","execution":"not_run","inspection":"source_inspected","execution_record_ids":[]},"language":"en","categories":["T10","T17"],"extensions":{"curation/v1":{"curator":"CURATOR-A-20261021","revision":2,"topic_ids":["CAT:T10.SOC.03","CAT:T10.SOC.08"],"confidence":"\"90%\" statistic unsourced by YouTube; correlational.","limitations":["\"90%\" statistic unsourced by YouTube; correlational.","Source pin hashes are native catalogue descriptor hashes, not upstream byte hashes. Original evidence pins: H1: 9f8b3931a90340225f1e744d5f55d1361978c8763c783fb467f46252cd347733; H2: 0a42d7c38747fc89c5ae8454fc601ea3e62694644b2b9925d946f8f2848bb393"],"observed_at":"2026-10-23T11:29:05.000Z","source_pins":[{"locator":"line 2; How to write titles; Dive into the data; What this policy means for you","source_id":"src:de25288b2efe271be4a5e5f8","version_id":"ver:c9d252dceceb7b4862de8377","observed_at":"2026-10-23T11:29:05.000Z","canonical_url":"https://support.google.com/youtube/answer/12340300?hl=en","version_sha256":"e31f72de7d549ccd30cb0e5a8b09e01fbea7abbe60a0d583f873efe8bcbf172f"},{"locator":"line 2; How to write titles; Dive into the data; What this policy means for you","source_id":"src:5b01c443f453876575854c45","version_id":"ver:88c167500a33374bc89a3bc2","observed_at":"2026-10-23T11:29:05.000Z","canonical_url":"https://support.google.com/youtube/answer/9229980?hl=en","version_sha256":"5e9fe092b3e4c2a5459d843c9b2f41ef1c92da8aeac4023d3a6d8d589cab44cb"}],"candidate_id":"C3-B373-01","claim_status":"source_fact","rights_basis":"Original curator/discovery summary with short quotations; public sources; source rights unchanged and not cleared for reuse of the source itself.","qualification":"shared_operator_desk_qa","supersedes_sha256":"3c8928c882cf7a2cbd92c60b8a8dfbce490b0c68816cea6bbe16df9d0dae4fd2"}},"visibility":"public","attribution":{"origin":"research_agent","upstream_url":null,"imported_from":null,"upstream_owner":null,"import_batch_id":null}},"observed_on":null,"original_id":"p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record","source_file":"records/p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record.json","research_side":{},"source_schema":"create-record-input/v1","original_sha256":"f4efe49da6107a980550abd7605b148fd83d5c9e1f7a6a1924b684f888782e3b","unmapped_fields":[]},{"batch_id":"pipe-8c6ebd0b42c83445be0d67fb699692c249f547b5","original":{"body":{"text":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources. '90% of the best-performing videos have custom thumbnails' is a YouTube statistic without stated method.\n\nLimitations: \"90%\" statistic unsourced by YouTube; correlational.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"},{"url":"https://support.google.com/youtube/answer/9229980?hl=en","note":"line 2; How to write titles; Dive into the data; What this policy means for you"}]},"tags":[],"type":"article","links":[],"title":"What does YouTube itself advise for titles and thumbnails, how should their effect be measured, and what thumbnails are disallowed?","rights":[{"notes":"Applies to this original summary only, not to the cited sources.","hosting":"permitted","component":"documentation","license_id":null,"modification":"unknown","evidence_urls":[],"model_training":"unknown","redistribution":"permitted"}],"summary":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails vio...","evidence":{"claims":[{"url":"https://support.google.com/youtube/answer/12340300?hl=en","claim":"YouTube Help (captured 2026-10-23): \"90% of the best-performing videos have custom thumbnails\" (YouTube statistic, no method given). Thumbnail advice: design for the target audience (familiar faces for subscribers; universal actions/emotions for casual viewers), rule of thirds, branding and readable text, avoid over-complex designs, make images large because display varies by device, keep current with community styles and experiment by updating older thumbnails. Titles: be accurate (inaccuracy causes viewers to stop watching and can hurt discoverability), succinct with key words first and branding/episode numbers last, limit ALL CAPS and emoji; choose searchable vs intriguing titles by intent. Measurement: for general audiences check impressions CTR on Home and Suggested in the first 24 hours on videos with above-average impressions; for subscribers check CTR in the Subscriptions feed in the first 24 hours; use research insights and the Audience tab for ideas. Policy: thumbnails violating Community Guidelines (sexual, graphic violent/gory, vulgar text) and thumbnails that \"mislead viewers to think they're about to view something that's not in the video\" are not allowed; borderline thumbnails may be removed or the video age-restricted without a strike. Combine with A/B tests decided on watch time (C3-B336-02) and measured evidence that packaging features explain little within-channel variance in one vlog sample (C3-B353-01).","locator":"line 2; How to write titles; Dive into the data; What this policy means for you","classification":"sourced_fact"}],"review":"unreviewed","execution":"not_run","inspection":"source_inspected","execution_record_ids":[]},"language":"en","categories":["T17","T20"],"extensions":{"curation/v1":{"curator":"CURATOR-A-20261021","revision":3,"topic_ids":["CAT:T10.SOC.03","CAT:T10.SOC.08"],"confidence":"\"90%\" statistic unsourced by YouTube; correlational.","limitations":["\"90%\" statistic unsourced by YouTube; correlational.","Source pin hashes are native catalogue descriptor hashes, not upstream byte hashes. Original evidence pins: H1: 9f8b3931a90340225f1e744d5f55d1361978c8763c783fb467f46252cd347733; H2: 0a42d7c38747fc89c5ae8454fc601ea3e62694644b2b9925d946f8f2848bb393"],"observed_at":"2026-10-23T11:29:05.000Z","source_pins":[{"locator":"line 2; How to write titles; Dive into the data; What this policy means for you","source_id":"src:de25288b2efe271be4a5e5f8","version_id":"ver:c9d252dceceb7b4862de8377","observed_at":"2026-10-23T11:29:05.000Z","canonical_url":"https://support.google.com/youtube/answer/12340300?hl=en","version_sha256":"e31f72de7d549ccd30cb0e5a8b09e01fbea7abbe60a0d583f873efe8bcbf172f"},{"locator":"line 2; How to write titles; Dive into the data; What this policy means for you","source_id":"src:5b01c443f453876575854c45","version_id":"ver:88c167500a33374bc89a3bc2","observed_at":"2026-10-23T11:29:05.000Z","canonical_url":"https://support.google.com/youtube/answer/9229980?hl=en","version_sha256":"5e9fe092b3e4c2a5459d843c9b2f41ef1c92da8aeac4023d3a6d8d589cab44cb"}],"candidate_id":"C3-B373-01","claim_status":"source_fact","rights_basis":"Original curator/discovery summary with short quotations; public sources; source rights unchanged and not cleared for reuse of the source itself.","qualification":"shared_operator_desk_qa","supersedes_sha256":"789f3ca24ad34b30dcf3b40b8c72362db24b9ea742e66af5d0b72827607212fb"}},"visibility":"public","attribution":{"origin":"research_agent","upstream_url":null,"imported_from":null,"upstream_owner":null,"import_batch_id":null}},"observed_on":null,"original_id":"p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record","source_file":"records/p-f0d25b0a038dfa287ef8d4196a4e286dcc22f5e8/record.json","research_side":{},"source_schema":"create-record-input/v1","original_sha256":"5216bca85052b68b448a922aa1367c63affcd612af8309e536733843aefcce9f","unmapped_fields":[]}],"publication":{"rule":"item_visibility","policy":"l05-publication/1","visibility":"public"}},"curation/v1":{"curator":"CURATOR-A-20261021","revision":3,"topic_ids":["CAT:T10.SOC.03","CAT:T10.SOC.08"],"confidence":"\"90%\" statistic unsourced by YouTube; correlational.","limitations":["\"90%\" statistic unsourced by YouTube; correlational.","Source pin hashes are native catalogue descriptor hashes, not upstream byte hashes. 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