Did Video Metadata Matter for SEO in 2017?
By 2017, video had become one of the fastest-growing forms of online content. YouTube was firmly established as the world's second-largest search engine, Facebook and Instagram were investing heavily in video, and Google regularly displayed video carousels in search results. Marketers began asking an important question: does video metadata matter for SEO? In 2017, the answer was a resounding yes. Because search engines could not fully "watch" videos, they relied heavily on metadata such as titles, descriptions, tags, thumbnails, and transcripts to understand and rank them. Many of the principles established that year still guide video SEO today.
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Why Metadata Was So Important in 2017
In 2017, search engines had limited ability to interpret the actual visual and audio content of videos. Although Google and YouTube were experimenting with machine learning and automatic captions, metadata remained the primary signal for understanding what a video was about. Without strong metadata, even excellent videos could go undiscovered. Metadata also influenced click-through rates in search results, which affected how much traffic videos received.
Video Titles
The title was the most influential piece of metadata. Effective titles in 2017 included the main keyword near the beginning, clearly described the video's content, and were compelling enough to earn clicks. Titles were usually kept under about 60 to 70 characters to avoid truncation. Misleading or clickbait titles might generate initial clicks but often led to poor watch time, which hurt rankings on YouTube.
Descriptions
Video descriptions provided context that helped search engines interpret content. Best practices in 2017 included:
- Placing the most important information and keywords in the first two or three lines, which appeared above the "show more" link.
- Writing detailed descriptions of several hundred words for important videos.
- Including links to related videos, playlists, and websites.
- Adding timestamps to help viewers navigate longer content.
Tags
Tags were a commonly discussed element of YouTube SEO in 2017. They helped YouTube understand topics and associate videos with related content. Creators typically used a mix of specific and broad tags, including variations and common misspellings. Over time, YouTube indicated that tags played a smaller role than titles, thumbnails, and descriptions, but in 2017 they were still considered a useful supporting signal.
Thumbnails
While not text-based metadata, custom thumbnails were critical for click-through rates. Clear, high-contrast images with expressive faces or relevant visuals helped videos stand out in search results and suggested videos. Higher click-through rates, combined with strong viewer retention, signaled to YouTube that a video was worth recommending.
Transcripts and Closed Captions
Transcripts and captions provided search engines with a text version of spoken content. Although YouTube generated automatic captions, they were often inaccurate in 2017. Uploading accurate caption files improved accessibility and gave search engines more context. Some marketers also published full transcripts on their website pages alongside embedded videos, adding indexable text that could rank in Google.
Video Schema Markup
For videos hosted on websites, VideoObject schema markup helped Google understand details like the video title, description, thumbnail URL, upload date, and duration. Proper schema increased the chances of videos appearing with rich results, such as thumbnails in search listings. Video sitemaps were another tool that helped search engines discover video content on websites.
Engagement Signals Alongside Metadata
In 2017, YouTube increasingly emphasized watch time and engagement. Metadata helped videos get discovered, but performance after the click determined long-term rankings. Metrics like average view duration, likes, comments, shares, and subscriptions after watching all contributed. The best results came from combining strong metadata with genuinely engaging content.
What Has Changed Since 2017
Today, search engines are far more capable of understanding video content directly through speech recognition, visual analysis, and AI. Google can identify key moments within videos and display them in search results. Even so, metadata remains important. Clear titles, descriptive summaries, chapters, accurate captions, and schema still help search engines and users understand videos quickly. The fundamentals established in 2017 remain a solid foundation.
Conclusion
Video metadata was a cornerstone of SEO in 2017. Titles, descriptions, tags, thumbnails, transcripts, and schema markup helped search engines understand videos and encouraged viewers to click. Combined with engaging content that kept audiences watching, strong metadata helped videos rank on YouTube and in Google. While technology has advanced, these principles continue to shape effective video SEO, making them valuable lessons for any brand investing in video content.
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