How to Write YouTube Descriptions That Rank
Published on August 16, 2025 by TagGenius
Most creators pour their energy into crafting eye-catching titles and thumbnails — but often overlook the YouTube description. In reality, your description is one of the most powerful SEO tools you have. It helps your video show up in search results, improves discoverability, and guides viewers to take action. Let’s break down how to write descriptions that attract both viewers and YouTube’s algorithm.
Why YouTube Descriptions Matter
- They help YouTube’s algorithm understand what your video is about.
- They provide context to viewers before they decide to click play.
- They let you add links, calls-to-action, and hashtags.
- They improve visibility in both YouTube and Google search results.
Step-by-Step Guide to Writing a High-Ranking YouTube Description
1. Research Relevant Keywords
Use tools like TagGenius YouTube Tag Generator or TubeBuddy to find the most relevant and trending keywords. Include both short-tail and long-tail keywords in your description.
2. Craft a Keyword-Rich Opening
The first 1–2 sentences are crucial for SEO. Naturally include your primary keyword and describe the video concisely. For example: “Learn how to rank YouTube videos in 2025 using proven SEO techniques and optimized descriptions.”
3. Add Detailed Explanation
Explain what the video covers in detail. Break it into sections if necessary, and naturally include secondary keywords. Example: “In this video, we cover keyword research, title optimization, thumbnail strategies, and how to craft the perfect description that boosts ranking and viewer engagement.”
4. Include Links and CTAs
Add internal and external links for value and engagement. Example: “Try our free Tag Generator here.” Encourage viewers to subscribe, visit your website, or check related videos.
5. Add Hashtags and Keywords at the End
Include 3–5 hashtags relevant to the video topic, like #YouTubeSEO #GrowOnYouTube #VideoMarketing. This improves discoverability and search filtering.
Tool Comparison: YouTube Description & SEO Tools
| Tool | Best For | Pros | Cons |
|---|---|---|---|
| TagGenius | AI-generated keywords and tags | Fast, accurate, integrates with YouTube SEO | Paid plan required for advanced features |
| TubeBuddy | Keyword & competitor analysis | Search volume, SEO scores, Chrome plugin | Some advanced tools require subscription |
| vidIQ | Trend tracking & analytics | Real-time insights, keyword scores, engagement tracking | UI can be overwhelming for beginners |
TagGenius
Best For: AI-generated keywords and tags
Pros: Fast, accurate, integrates with YouTube SEO
Cons: Paid plan required for advanced features
TubeBuddy
Best For: Keyword & competitor analysis
Pros: Search volume, SEO scores, Chrome plugin
Cons: Some advanced tools require subscription
vidIQ
Best For: Trend tracking & analytics
Pros: Real-time insights, keyword scores, engagement tracking
Cons: UI can be overwhelming for beginners
Mini Case Study
A creator optimized 10 videos using keyword-rich descriptions and TagGenius-generated tags. Within a month, average search impressions increased by 35%, and overall watch time went up by 28% without paid promotion.
Frequently Asked Questions (FAQs)
1. How many words should my YouTube description be?
200–300 words minimum; longer descriptions give YouTube more context and ranking potential.
2. Should I include keywords multiple times?
Yes, naturally. Avoid keyword stuffing, but include main and related keywords 2–3 times throughout.
3. Are links important in the description?
Yes. They drive traffic, improve engagement, and help YouTube understand content relevance.
4. Can I update my description later?
Absolutely. Updating with new keywords or links can help improve rankings over time.
5. Should my hashtags match the title?
Not exactly, but they should be relevant. Use them to capture additional search intent and related topics.
Final Thoughts
Writing a YouTube description is not just an afterthought — it’s a strategic tool for SEO, discoverability, and engagement. By including targeted keywords, detailed context, CTAs, and hashtags, your videos will be more likely to rank, attract the right audience, and grow your channel. Implement these strategies consistently to see measurable improvements in views, watch time, and audience retention.