YouTube SEO Checklist: Title, Description and Tags That Actually Work
Most creators treat YouTube SEO as an afterthought - upload the video, type whatever title feels right, paste a link to Instagram in the description, done. Then they wonder why a good video gets 200 views.
The truth is less exciting than the gurus make out. YouTube SEO is not a secret algorithm hack. It is a set of small, boring decisions that together tell YouTube what your video is about and tell viewers why they should click. Get them right and your video gets shown to the right people. Get them wrong and it stays invisible.
Here is the checklist, in the order that matters.
The title
Your title does two jobs at once: it tells YouTube what to rank you for, and it convinces a human to click. Most titles do one and fail the other.
Keep it between 50 and 60 characters. YouTube cuts titles off around 60 characters in search results and even earlier on mobile. Anything past that is wasted.
Put your main keyword in the first three words. Not because of some ranking trick, but because that is the part that survives truncation and the part a scrolling viewer actually reads. Cat Vaccination at the Vet beats Our Amazing Day Out With Our Cat Who Went To The Vet For Vaccination.
Write what people search, not what you would title a diary entry. Nobody types "our cat hated the injection" into YouTube. They type "cat vaccination reaction" or "taking cat to vet first time". Think about the search, then write the title.
Drop the branding. If your title ends with | Channel Name | @handle | #shorts, you have handed sixty characters of prime real estate to information nobody searches for. Your channel name is already displayed under the video.
Avoid all-caps and excessive emoji. Beyond looking desperate, this triggers clickbait filters if you ever advertise the video. One emoji is fine. VIDEO SHOCKING 😱😱🔥 is not.
The description
The description is where most creators give up entirely. It is also where a surprising amount of ranking signal lives.
The first two lines are everything. They appear in search results and above the fold before anyone clicks "Show more". Put your keyword in naturally and explain what the video delivers.
Write at least 200 words. This is not padding for its own sake - YouTube reads the description to understand your topic. A two-line description gives it almost nothing to work with. Describe what happens, who it is for, and what the viewer will get.
Add timestamps. Four or more timestamps create chapters, and chapters show up directly in Google search results. They also improve watch time because someone who only wants the middle section can jump there instead of closing the tab.
00:00 Intro
01:23 Getting ready
03:45 At the clinic
05:12 The reaction
07:30 Aftermath
Include a clear call to action. "Subscribe for more" is fine. Being specific is better: "If your cat hates the vet too, tell me in the comments - I read every one."
End with three hashtags. Three, not fifteen. YouTube displays the first three above your title, and stuffing more than fifteen makes YouTube ignore all of them.
The tags
Tags matter less than they did five years ago, but they still do something - they help YouTube disambiguate. If your video could plausibly be about two different things, tags settle it.
Use ten to fifteen tags. More than that dilutes the signal. Fewer than ten leaves context on the table.
Mix three types:
- Broad - the category your video sits in:
cat vlog,pet care - Specific - what this video actually covers:
cat vaccination,first vet visit - Niche - long-tail phrases with less competition:
cat scared at vet clinic,annual cat vaccination what to expect
Include your channel name as a tag if it is commonly misspelled. It is the one branding tag worth having.
Stay under 500 characters total. That is the hard limit across all tags combined.
The thumbnail
Not strictly SEO, but it decides whether your SEO work matters at all. A video that ranks first with a 2% click-through rate performs worse than one ranking fifth with 10%.
Make it readable at thumbnail size. If you cannot read the text on your phone, neither can anyone else.
Faces work. Clear expressions work better than wide shots.
Match the title. If your title promises a vaccination reaction and the thumbnail shows a sleeping cat, viewers feel misled and bounce - which hurts you more than a weak thumbnail would have.
Checking your work
Here is the honest problem with SEO checklists: everyone agrees on these rules, and almost nobody applies them consistently, because you are judging your own work.
You wrote the title, so it seems clear to you. You know what the video is about, so the description feels complete. The blind spots are invisible by definition.
This is why VidSurge runs an AI SEO analysis on every campaign. It scores your video against these exact criteria - title length, keyword placement, description depth, timestamps, call to action, hashtags - and returns a number out of 100 with a specific fix for each thing that falls short. Not "improve your description" but "your description is 47 words; here is a 200-word version with timestamps ready to paste."
It also generates five optimised title variants with predicted click-through scores, a full SEO description, and fifteen tags balanced across broad, specific and niche - so the checklist above becomes something you apply in two minutes rather than something you mean to get around to.
The short version
If you only change three things today:
- Rewrite your title so the keyword sits in the first three words and the whole thing fits in sixty characters.
- Write a real description - 200 words, keyword in the first two lines, four timestamps, one clear call to action.
- Replace your tags with ten to fifteen that mix broad, specific and niche.
That is most of the available gain. Everything else is refinement.
And if you want to know exactly where your video stands before you spend anything promoting it, VidSurge scores it for free the moment you paste the URL.