And what to check before assuming a single-language title and description is limiting who finds your video.
Definition
Metadata is a general term for the information attached to a video — title, description, tags, and hashtags. It's the text information used broadly in search and recommendations.
AlgoLens checks for a specific issue: the multilingual metadata gap — a state where your title and description exist only in Korean, which may make it harder for non-Korean-speaking viewers to find the video. AlgoLens checks whether multilingual metadata has been registered.
Why this can matter
Many creators write titles and descriptions in just one language — usually the one they speak day to day. That's a natural default, but it can leave a gap: viewers who search or browse in a different language may have a harder time discovering the video, simply because the text describing it doesn't match the language they're using. This describes a plain reach/accessibility gap — not a claim about exactly how YouTube's search or recommendation systems handle language.
What to do
Where AlgoLens helps
AlgoLens's Video List tab flags, per video, whether multilingual metadata has been registered, so a gap doesn't go unnoticed simply because a video was published with only one language filled in.
Related terms
FAQ