Start from an example:
Caption
TikTok search reads captions, so the keyword should appear early.
Checks follow common best practice; TikTok does not publish a caption formula. The 4,000-character limit includes hashtags.
What the grader checks
Hook and keyword
Only the first 80–100 characters show before “more”. A first line of 55 characters or less with your keyword reads fast and helps TikTok search.
Hashtags
3–5 relevant tags describe the topic. Generic tags like #fyp do not tell TikTok who should see the video.
Score
score = passed weight ÷ total weight × 100Hook length and keyword count double; the other four checks count once.
Frequently asked questions
What is the TikTok caption limit?
4,000 characters, including hashtags and @mentions.
How many hashtags should I use on TikTok?
Most guides suggest 3–5 relevant hashtags: one broad and two to four niche tags.
Do #fyp and #foryou help?
There is no evidence they boost reach. Niche tags tell TikTok more about your video.