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YouTube SEO: Titles, Chapters, Thumbnails and Captions That Get Views

Beginner Medium impact Ongoing Images, video and audio

Updated · First published

Short answerYouTube SEO means picking a topic people search for, putting the 1-2 main words in the title and description, adding chapters (first timestamp 00:00, at least 3, each 10 seconds or longer), a clear 16:9 thumbnail and accurate captions, then reading Studio analytics to improve click rate and retention.

YouTube SEO is the work of making a video easy to find and worth clicking in YouTube search, in suggested videos and in Google’s own results. A channel gives a startup a second search engine to appear in, next to Google.

What is YouTube SEO?

YouTube decides what to show by matching a viewer’s query and history against your video’s metadata, then watching how viewers respond. Metadata is the title, description, chapters, captions and thumbnail. Viewer response is the click-through rate on each impression and how long people watch. You control the first group directly and the second through the quality of the video.

YouTube publishes no exact ranking factor list, and the figures floating around the web (ideal length, ideal tag count) have no official source. This page sticks to what YouTube Help and Google document.

Why does it matter for SEO?

  • A second audience. Many how-to searches return video results, and YouTube videos get an easy path into Google’s video results through the watch page YouTube already provides (see video SEO).
  • Timestamps reach Google. Google’s video documentation says timestamps in a YouTube video description work for moments in Search in all Search languages.
  • Brand search. A video that explains your product gives people one more branded result to click, which supports your social profiles and content distribution.

How do you do YouTube SEO, step by step?

  1. Pick topics people search for. Type your topic into YouTube search and read the autocomplete suggestions. Check the same query in Google: if video results show up, a video is wanted there. Match the search intent, which for video is “show me how” or “which one should I pick”.
  2. Name the topic in title and description. YouTube’s own guidance tells you to find the 1-2 main words that describe your video and feature them prominently in the title and the description. Put them near the start, in plain language. Write the title for people first.
  3. Write a useful description. Lead with two sentences saying what the viewer will learn, add links to your site and related videos, then chapters and credits. Skip a wall of repeated keywords.
  4. Add chapters. YouTube’s rules: the first timestamp must be 00:00, you list at least three timestamps in ascending order, and each chapter lasts at least 10 seconds. Manual chapters override automatic ones. Like this:
00:00 Why sourdough fails
01:15 Feed the starter
03:40 Shape the loaf
  1. Design the thumbnail for the click. YouTube recommends a resolution of 1280 by 720 pixels (minimum width 640), a 16:9 ratio and a file under 2 MB, in JPG, GIF, BMP or PNG. Use one clear subject, big readable words (3 to 4 at most) and strong contrast, and keep the promise honest. Test it at phone size.
  2. Add accurate captions. Upload your own subtitles or edit YouTube’s automatic ones. Captions give viewers without sound a way to follow, and give the video a transcript to match against.
  3. Open with the answer. The first 30 seconds should confirm what the viewer came for. Cut the long intro.
  4. Link your channel and site both ways. Embed the video on the matching page of your site, and link from the description to that page.

How do you measure the result?

Open YouTube Studio, then Analytics:

  • Reach: impressions and impressions click-through rate. A low click rate points at the thumbnail or title.
  • Engagement: watch time and average view duration. A drop in the first minute points at the intro.
  • Audience retention graph: shows the exact second viewers leave. Fix the pattern in your next video.
  • Traffic sources: shows how much comes from YouTube search, suggested videos, external sites and Google search.

Change one thing at a time (thumbnail, title, intro) and compare over the same number of days.

What mistakes should you avoid?

  • Clickbait. A thumbnail that promises what the video does not deliver raises clicks and lowers watch time, and both numbers are read together.
  • Keyword-stuffed descriptions and tag lists. YouTube’s guide asks for 1-2 main words, placed with purpose.
  • Chapters that break the rules. Missing the 00:00 start or listing fewer than three timestamps means YouTube shows no chapters.
  • Generic thumbnails and auto frames. A random frame is rarely the best frame.
  • Publishing without a plan. One video per month with no topic cluster gives you no pattern to learn from. Plan a series that answers related questions, as you would for topic clusters on your blog.
  • Ignoring the site. Without an embed and a link, your website gets nothing from the video.

Where can you learn more?

YouTube Help has pages on descriptions, chapters and thumbnails, and the Creator Academy covers analytics. The free social media module of the Fe/male Switch startup school covers channel setup and posting rhythm for a startup. Next steps: choose three search topics from your keyword research, publish one video per topic, and compare click rate and retention.

Earlier versions of this directory listed this as: Video social optimization, Video thumbnail optimization.

Learn SEO as part of building a startup

Fe/male Switch is a startup school and game where you build a real company step by step. Its free digital marketing module covers SEO, and the free startup tools help with the rest.