People don’t just scroll TikTok. They search it, the way they’d use a search engine: “easy dinner for one,” “how to fix a squeaky door,” “best budget mic.” When your video matches what they typed, it can keep getting found for weeks or months after the For You feed has moved on.

That’s what TikTok SEO means: making it easy for the app, and for searchers, to know exactly what your video is about. Here’s how.

How TikTok knows what your video is about

TikTok reads several signals from every video:

  • The words you say. Speech is turned into text.
  • The text on screen.
  • Your caption.
  • Your hashtags.
  • What’s in the picture, and how people react to it.

Then, like any search engine, it watches whether people who searched a phrase actually watched your video. A video that wins the tap but loses the viewer sinks.

Step 1: Find the phrase people actually type

A keyword is simply what someone would type to find your video. You don’t need a paid tool; ten minutes does it.

  1. Start with your viewer’s problem in their words. “Candle burning down the middle,” not “achieving a full melt pool.”
  2. Type it slowly into TikTok’s search bar and read the suggestions. They show what real people type. Try adding “how to,” “why does my” and “best” in front.
  3. Look at what comes up. If the top results all say the same thing, look for a narrower phrase (“soy candle tunneling,” “fix tunneling without foil”).
  4. Use Creator Search Insights. TikTok’s own tool shows what people search for, including a content gap filter for topics that are searched often but have few videos. Find it by searching “Creator Search Insights” in the app or in TikTok Studio. Our Where to Find Trends guide covers it and the other official trend tools.
  5. Borrow your viewers’ words from your comments and the questions people ask you.

Then pick one main phrase per video, plus one or two close variations.

Step 2: Say it, show it, write it

Put your phrase in three places, early and naturally:

  1. Say it in the first few seconds: “Here’s how to stop a candle tunneling.”
  2. Show it in your on-screen hook text: “Stop candle tunneling.”
  3. Write it at the start of your caption.

Use your viewers’ words, not industry jargon, and keep it natural. A keyword-stuffed caption reads like spam to people, and people are who you’re writing for.

Step 3: Answer the question fast

Search viewers came for a specific answer. If someone searched “why is my candle tunneling,” the reason should arrive in the first few seconds, not after a long setup. Feed viewers want to be entertained; search viewers want their question answered. When you’re making a search video, lead with the answer and then show the details.

Step 4: Write captions that help

Most people only see the first line before “more,” so:

  1. First line: your keyword, as a hook or a promise.
  2. Then: context or extra value, like the steps, the recipe or the key tip.
  3. One call to action, if the video needs one.
  4. A few relevant hashtags.

For example:

How to stop a candle tunneling (it’s the first burn).

Let it burn until the wax melts to the edge, about an hour per inch of width. Save this for your next new candle.

#candlecare #candletips #candletunneling

Step 5: Hashtags: label, don’t stuff

Hashtags still help label your video, but they matter much less than what you say, show and write. Use three to five specific ones, including one your community actually uses, and skip unrelated trending tags. More on this in do hashtags still work?

Step 6: Build a cluster

One video about a topic is a guess. Ten videos about related questions in your niche show the app, and searchers, that you’re a reliable source on it. Make a short series around one keyword family: “candle tunneling,” “candle soot,” “how long to burn a candle,” “how to trim a wick.” Each one can send viewers to the others.

Step 7: Check what’s working

TikTok’s analytics can show the search terms that led people to your videos. When you see a phrase bringing in viewers, make more videos that answer the questions around it. And be patient: search traffic often starts slowly and keeps growing for months, unlike a feed spike that’s gone in days.

What doesn’t work

  • Keyword stuffing. Repeating the phrase ten times in the caption reads as spam.
  • Hiding keywords in tiny on-screen text or saying words the video isn’t about. Misleading packaging breaks trust and may break the rules.
  • Chasing every trending search. If it doesn’t fit your niche, the views won’t turn into followers who care.

Your search-ready checklist

  • One main phrase, in the viewer’s own words
  • Said out loud in the first few seconds
  • In the on-screen hook text
  • In the first line of the caption
  • The answer arrives fast
  • Three to five specific hashtags
  • Part of a cluster of related videos

For caption lengths, cover sizes and other limits, see Platform Specs.

Try it

Pick one problem your viewers have. Type it into TikTok’s search bar with “how to” and “why does my” in front, and write down the five suggestions that fit you best. Make your next video answer the first one, and say, show and write the phrase.