Search Optimization for Video Content (Douyin/Bilibili/WeChat Channels)

Chapter 4: Content Marketing · Question 57

Many people only focus on "recommended traffic" when making videos, but overlook a continuously growing traffic entry point—search. Douyin's search MAU has exceeded 600 million (industry estimate, based on public reports), Bilibili content is extensively indexed by Baidu, and WeChat Channels is embedded in WeChat's "Search" system. Doing video search optimization well is equivalent to adding a "long-tail traffic engine" to every video.

Differences in Search Mechanisms Across Platforms

Key Points for Douyin Search Optimization

Douyin searchThe algorithm focuses on three signals:Keywordmatch degree, video quality score, account weight。

• Title: Put core keywords in the first 15 characters; for example, "Beginner makeup tutorial | 5-minute going-out look" performs much better in search than "Sisters come check out this amazing makeup"
• Hashtags: Choose 2-3 precise topics (#beginner makeup) + 1 trending topic (#beauty plan)
• Subtitles/voice: Douyin recognizes spoken content in videos as a search index, so naturally incorporate keywords when speaking on camera
• Comment section: Guide users to mention relevant keywords in comments (e.g., "want more eyeshadow tutorials")

Bilibili SEO: Capture Baidu traffic

Bilibili is one of the few video platforms heavily indexed by Baidu with high authority, so doing Bilibili SEO well means gaining both on-platform and Baidu traffic simultaneously.

• Title: Use the "core keyword + supplementary description" format, e.g. "Python Web Scraping Tutorial for Beginners: Scraping Douban Movie Data from Scratch"
• Description: The first 80 characters should include keywords, since Baidu's snippet is pulled from here
• Tags: Up to 12, recommended to cover core terms, synonyms, andlong-tail keyword
• Part titles: Each part title of a multi-part video can be independently searchable

WeChat Channels and WeChat Search

The search ranking formula for WeChat Channels = keyword relevance × social connections × content quality.

• Video titles, descriptions, and #hashtags are all keyword sources
• After linking a WeChat Official Account, keywords in Official Account articles give the Channels video a "boost"
• Content liked by friends is prioritized in search, so early engagement matters a lot

Thumbnail click-through rate optimization

In search results, the thumbnail is the first factor users consider when deciding to click:

• Large text: Phone screens are small, so cover text should occupy at least 1/3 of the frame
• Contrasting colors: High-contrast color schemes like yellow text on black or white text on red stand out more
• Suspense: Use numbers (“3 tips”), questions (“Why?"), and comparison images to attract clicks
• A/B testing: Douyin's "optimize cover" feature and Bilibili's custom cover both support multi-version testing

SEO value of video transcripts

Organizing spoken video content into a text transcript and publishing it is a strategy that yields multiple benefits:

1. Bilibili articles / WeChat Official Account posts → crawled by search engines
2. Put a text summary in the video description → increases keyword density
3. Transcripts can be broken down intoXiaohongshu (RED)posts, Zhihu answers, etc. → cross-platform distribution

Cross-platform distribution strategy

Don't simply repost the same content; adjust it for each platform:

Practical recommendations

• Do this firstKeyword researchthen shoot the videoSearch the topic term in each platform's search box and look at the dropdown suggestions and "related searches” — these reflect real user demand
• Within 48 hours of publishing each video, run a search validationSearch your target keyword and check whether the video appears in the results; if not, adjust the title and tags
• Build a "video keyword library"Use a spreadsheet to record each video's target keyword, current search ranking, and traffic changes, and optimize regularly