Title and first lines
Is the keyword in the visible part of the title and the first lines of the description?
Official API, with your permission
YouTube SEO
Titles, descriptions, chapters, captions and thumbnails
YouTube is one of the largest search surfaces in the world. Audit titles, descriptions, chapters and captions before publishing, and see your channel’s search terms from YouTube Analytics.
What it audits
Chapters and captions
Are timestamps and a caption file present, in the right language?
Shorts fit
Checks vertical video and short title rules.
Channel and web link
Audits the channel description, site link and VideoObject schema together.
Character limits
Rules can change. Each row states its source status; check limits not confirmed by an official help page in the app before publishing.
| Field | Limit | Source status |
|---|---|---|
| Title | 100 | Third-party sources agree |
| Description | 5,000 | Third-party sources agree |
| Tags (total) | 500 | Third-party sources agree |
Data access
YouTube Data and Analytics APIs work with OAuth permission on your own channel.
Its limits: A place in recommendations or search isn’t guaranteed. Thumbnail click impact is measured only with your own Analytics data.
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See the truth first
Create an account, pick your site and the surfaces you want, and see your first audit right away.