YouTube SEO basics: how to write titles, descriptions, tags and chapters

YouTube SEO is mostly about one thing: helping the right viewers understand what your video is about and click it. Metadata won't rescue a weak video, but clear titles, descriptions and chapters help a good video get found in search and suggested results.

Here is what matters for each field, with limits, examples and a checklist you can use before every upload.

Titles: lead with what people search for

YouTube allows up to 100 characters in a title, but search results and suggestions often cut titles off much sooner, so put the important words first. Lead with the phrase a viewer would type, then add the angle that makes your video the one to click.

Be specific and honest. A title that over-promises gets clicks and then loses viewers, which hurts more than it helps.

Descriptions: the first lines do the work

Descriptions can be up to 5,000 characters, but only the first couple of lines show before "more". Put the main search phrase in the first sentence and say plainly what the viewer will learn. Then add detail: the key points, links you mention, and a call to action such as subscribing or visiting your site.

Write for people, not for a keyword count. Repeating a phrase over and over doesn't help and makes the description harder to read.

Chapters: easy wins for viewers and search

Chapters split a video into labelled sections that appear on the progress bar and can show in search results. To create them, list timestamps in the description. YouTube's rules: the first timestamp must be 0:00, you need at least three timestamps, and each chapter must be at least 10 seconds long.

Use chapter titles that describe the content ("Sell outcomes, not hours") rather than vague labels ("Part 2").

Tags and hashtags: minor, but tidy

YouTube has said tags play a minimal role in discovery and are mainly useful for commonly misspelled terms. Add a handful of accurate tags and move on. Hashtags in the description can appear above the title; two or three relevant ones are plenty.

Thumbnails work with the title

The thumbnail and title are read together. Don't repeat the title on the thumbnail; use two to five bold words that add to it, and a clear face or subject. Test different thumbnails on your best videos.

A pre-upload checklist

1. Title leads with the search phrase and is honest about the content.
2. First sentence of the description states what the viewer will learn.
3. Chapters start at 0:00, with at least three, each 10 seconds or longer.
4. A handful of accurate tags and two or three hashtags.
5. Thumbnail text adds to the title rather than repeating it.
6. End screen and cards point to a related video.

Writing it all automatically

Echoreel writes this metadata from your transcript: three keyword-first title options, a description with the main phrase in the first sentence, tags, hashtags and chapters that follow YouTube's timestamp rules. Review it, adjust anything you like, and paste it in when you upload.

Try Echoreel free