YouTube SEO Checklist: 27 Checks for Every Upload

How YouTube decides what to show in search

YouTube search ranks videos on three things, according to YouTube Help: relevance, engagement and quality. Relevance is how well the title, tags, description and the video itself match the search. Engagement is how viewers respond to the video for that search, including watch time. Quality covers signals about the channel and the video. Search results are not a list of the most-viewed videos for a search, and YouTube does not accept payment for better placement in organic search.

That is the whole checklist in one paragraph. Everything below is a practical way to give YouTube the relevance signals it asks for, and to give viewers a reason to click and keep watching. The checklist has 27 checks, grouped by stage, so you can run it on every upload without starting from a blank page.

Before you record: keyword and topic checks

1. Write down the one search phrase the video answers. If you cannot write it in one line, the video does not have a clear topic yet.
2. Type that phrase into the YouTube search bar and read the autocomplete suggestions. They show what viewers actually search for.
3. Check the Research tab in YouTube Studio. It shows searches from your own audience and from viewers in general.
4. Pick one or two main words to feature in both the title and the description. YouTube's description guidance names this directly.
5. Check what the top results already cover. Your video needs a clear answer or angle they miss, not a repeat of the same list.
6. Decide the outcome in one sentence. Write what the viewer will know or be able to do after watching, and keep that sentence in front of you while you record.

Title checks

7. Put the main search phrase near the start of the title. Viewers on phones see only the first part of a long title.
8. Stay inside the 100-character limit. YouTube sets that as the maximum for a video title.
9. Say what the video delivers, not just its topic. A title that names the outcome earns the click and sets the right expectation.
10. Do not use ALL CAPS or strings of exclamation marks. YouTube's discovery FAQ lists loud titles among the things to avoid.
11. Do not promise what the video does not show. Misleading titles and thumbnails are listed by YouTube as deceptive, and they cost you watch time as well as trust.
12. Read the title out loud. If it sounds like a list of keywords rather than a sentence a person would say, rewrite it.

Description checks

13. Answer the video in the first two lines. Those lines are what viewers see first, before they click to expand the description.
14. Use the one or two main words in the first paragraph, written as normal sentences, not as a keyword list.
15. Stay inside the 5,000-character limit for descriptions, and make each video's description unique.
16. Add chapters with timestamps after the first paragraph, for videos long enough to need them. Chapters help viewers find the part they need.
17. Add links to related videos and to sources you mention, below the chapters. Put the subscription call to action in the full description, not in the first two lines.
18. Fill in the default description field in YouTube Studio for text that belongs on every video, such as your channel links, so you do not retype it each time.

Thumbnail, tags and hashtags

19. Make a custom thumbnail that matches the video. YouTube's FAQ asks for thumbnails that accurately represent the content, and for titles and thumbnails that agree with each other.
20. Keep the thumbnail readable at small size. Test it at the size it appears in search results on a phone, not at full size on a desktop.
21. Add a few tags, and stop there. YouTube Help says tags play a minimal role in discovery, except when a subject is commonly misspelled. A long tag list does not help.
22. Use two or three hashtags that match the topic. YouTube shows up to three above the title, and more than 60 hashtags means all of them are ignored.
23. Do not add excessive tags to the description. YouTube treats that as a spam and deceptive practices problem.

Accessibility and upload settings

24. Add accurate captions. Upload your own captions file rather than relying only on automatic captions, because captions help YouTube understand the video and help viewers who watch without sound.
25. Set the right category and language for the video, and add a location if the video is about a specific place.
26. Add an end screen and cards that point to the next video a viewer of this one would want, not to your most popular video regardless of topic.
27. Check the upload in YouTube Studio before you publish. Play the first 30 seconds, read the title and description as a viewer would see them in search, and confirm the thumbnail, chapters and captions are all in place.

A worked example: one video, before and after

A creator publishes a 12-minute video about sharpening kitchen knives. The first version is titled "Knife Sharpening Tips and Tricks for Home Cooks - Best Methods Explained" and the description starts with "Welcome back to the channel! Don't forget to subscribe and check out my other videos." It gets few search views, because the title buries the search phrase and the description says nothing about the video.

The revised version is titled "How to Sharpen a Kitchen Knife at Home (Whetstone Method)". The description opens with two lines: "This video shows how to sharpen a kitchen knife on a whetstone, from a dull edge to a edge that slices paper. You need a 1000/6000 grit stone, a towel and ten minutes." Chapters follow: 0:00 what you need, 1:12 setting the angle, 4:30 sharpening the first side, 7:40 the second side, 10:15 testing the edge. Tags cover the common misspelling "whet stone" and nothing else. The thumbnail shows the knife on the stone, matching the video.

Nothing in the video changed. The title now matches the search, the description answers it in two lines, and the chapters let a viewer jump to the step they need. That is the whole job of this checklist: make the video findable, then make the first seconds of the page convince a searcher to watch.

Common mistakes this checklist catches

• Writing the description as a keyword list. YouTube's description guidance asks for helpful text, and search terms are matched against the text in the description, not against a list of tags.
• Spending an hour on tags. Tags play a minimal role in discovery. Spend that hour on the title, the thumbnail and the opening minute of the video instead.
• Using a thumbnail that promises a different video. A misleading thumbnail earns a click and loses the viewer in seconds, and YouTube's FAQ lists deceptive thumbnails among the things to avoid.
• Changing a working title. YouTube says changing a title or thumbnail can change a video's position, because viewers react differently to the new version. Fix the next upload, not the one that already works.
• Publishing without captions. Automatic captions are a fallback, not a plan. Accurate captions help both viewers and YouTube's understanding of the video.
• Copying the same description to every video. YouTube's guidance asks for a unique description on each video, because a unique description makes the video easier to find through search.

What to measure after you publish

Open YouTube Studio and look at the Reach tab, not just the view count. Check which search terms brought viewers, what share of impressions turned into clicks, and where viewers stopped watching. If a video gets impressions but few clicks, the title and thumbnail are the problem. If viewers click and leave in the first minute, the opening is the problem, not the metadata. If a video gets clicks and long watch time but few search views, the title may not match the phrase viewers search for, and the Research tab will show you the phrase they use instead.

Check again after a week, not after an hour. YouTube needs time to test a new video with different audiences, and a single day's numbers say little about a video's search performance.

Where to go next

For the analytics side of the same job, the best YouTube analytics tools post covers the tools that show which videos earn watch time, and the best video analytics software post covers the wider options. If you also publish the video on your own site, the best SEO tools for creators post covers the keyword tools that fit a creator's budget. Adziq's content service page describes how this kind of optimisation is run for a client, and the tracking checklist before ads guide covers the measurement setup to have in place before you spend money promoting a video.

Common questions

Sources

• YouTube search and discovery FAQ (YouTube Help)
• Upload YouTube videos (YouTube Help)
• Tips for video descriptions (YouTube Help)

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