YouTube creators are constantly looking for ways to optimize their content for visibility and growth. One of these methods that is often misunderstood or discussed is the use of tags in the video description. These are not to be confused with official YouTube tags (metadata), which have a separate designated area when uploading videos. In this article we investigate whether placing tags (such as hashtags or keywords) in the description of a video actually helps with discoverability, ranking or engagement.
TL; DR
Tags in the YouTube description section can have minimal but situational benefits. While they don’t drastically affect search results, using relevant hashtags and keywords in the description can somewhat improve discoverability and provide context. However, YouTube’s main search algorithm gives more weight to factors like titles, official tags, thumbnails, and engagement metrics. Creators should view description tags as a supplement (and not a core strategy) for channel growth.
Understanding YouTube tags vs description tags
First of all, it is important to distinguish between two types of tags:
- YouTube tags (metadata): These are added in the YouTube Studio when uploading a video. They are intended to help clarify the video topic for the algorithm.
- Description Tags: These are hashtags or keywords placed directly in the video’s description written by the creator.
Many new makers confuse the two or consider them interchangeable, but they serve different purposes. YouTube itself has mentioned that metadata tags have a relatively low impact on video discovery compared to other elements.
How YouTube uses description tags and hashtags
Hashtags (the words starting with ā#ā) placed in the description or title of a video are clickable and create additional navigation options for users. When a user clicks on a hashtag, they are taken to a results page with videos using the same tag.
This feature can be especially useful in niche content categories or for joining popular conversations. For example, use hashtags such as #do-it-yourself, #TrueCrimeor #TravelVlogger can tell both the viewer and the algorithm what to expect.
However, flooding your description with hashtags or keywords does not guarantee visibility. YouTube recommends with up to 15 hashtags and warns that overuse can completely negate its effect.
Do description tags help search rankings?
The answer is: it depends. YouTube’s algorithm is versatile and takes hundreds of signals into account when ranking videos. Description tags are not a major factor, but can play a minor role in the equation, especially:
- When the phrases used in the description match commonly used search terms
- Whether the hashtags are currently trending or relevant
- When tags enhance the metadata context of the video
That said, YouTube is prioritizing relevance of the title, look at the time, click-through rate (CTR)And involvementācomments, likes, and subscriptions ā above description content. These factors say more about the quality of a video and viewer satisfaction than keyword placement alone. In short, even with perfect description tags, your video won’t be appreciated if no one watches it to the end or actively engages with it.
Hashtags versus keywords in the description
Interestingly, hashtags (ā#ā) are officially recognized by YouTube and appear above the video title when used (up to the first 3). Keywords, on the other hand, are simply words or phrases included in the body of the description. While hashtags provide navigation options, keywords provide context for YouTube’s natural language processing (NLP) systems.
Here’s why including both can help:
- Hashtags: Let viewers discover related videos or topics grouped by tag.
- Keywords: Reinforce video context when it appears naturally in the description and match phrases people search for.
If your video is about “how to build a birdhouse,” using that exact phrase in both the title, description, and as a hashtag can reinforce the theme for YouTube and make it more discoverable:but only a little.
Best practices for using tags in descriptions
As with most SEO strategies, the key is to stay relevant and avoid overstuffing. Here are best practices for including tags in your video descriptions:
- Limit hashtags: Stick to three to five highly relevant hashtags to avoid them looking spammy.
- Strategic placement: Place important tags at the top of the description. Many viewers won’t scroll far.
- Natural language: Integrate keywords into coherent sentences to make the description readable.
- Focus on value: Use the description to entice users to watch the video, not just for keyword stuffing.
- Stay informed: Only use trending hashtags if they authentically relate to your content.
By following these principles, tags in the description can provide small boosts in terms of searchability and user engagement.

Common myths about description tags
There’s a lot of misinformation out there about YouTube’s SEO, much of it perpetuated by outdated forums or guesswork. Let’s bust some common myths surrounding tags in YouTube descriptions:
- Myth #1: āTags in the description increase your SEO.ā ā False. They contribute marginally or not at all to search rankings.
- Myth #2: āYou can fool the algorithm with a lot of tags.ā – Wrong. According to YouTube policies, tag stuffing may be subject to penalties.
- Myth #3: āEach hashtag will appear above your video title.ā – No. Only the first three qualified hashtags are shown. Others are buried.
- Myth #4: āYouTube extracts search terms exclusively from tags.ā ā Incorrect. YouTube primarily uses titles, transcripts, and viewer behavior to assess the relevance of videos.
Ultimately, relying on description tags as your main traffic strategy is like putting a teaser poster on a billboard and expecting a flood of movie tickets to be sold. It’s supportive at best.
Case studies and examples
To further illustrate this, many YouTube growth strategists have conducted A/B tests measuring only the impact of description tags. Results generally show that videos with well-optimized titles, thumbnails, and engagement perform better than videos rich in description tags but without viewer engagement.
Even YouTube’s own Creator Academy emphasizes focusing on engaging content and accurate metadata on loading keyword descriptions with terms and tags.
So⦠Should you use tags in descriptions?
The short answer is: yes, but with caution and moderation.
They have their place in the overall optimization ecosystem, especially:
- If you want to join trending hashtags
- For topic categorization and clarity
- To increase click-through rate from hashtag result pages
Just don’t expect miracles. They are one supporting toolā no magic bullet for virality.
Conclusion
Do tags in YouTube descriptions actually work? Yes, but not in the way many think. They offer contextual clarity, niche discoverability, and a user experience boost, but not a huge ROI in terms of pure SEO. Focus on quality content, compelling stories, and accurate metadata before worrying about hashtags in the description.
Use description tags the same way you would use spices in cooking: not as a meal itself, but to enhance the flavor. If you do it right, they can make your video a little easier to find, more clickable and a lot more polished.
Where should we steer?
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