It's important to optimize your search engine results whenever possible, even when you are promoting a video on YouTube. Fortunately, you can increase the value of your YouTube videos as well as your search engine ranking by incorporating closed captioning.
Why Closed Captioning?
Closed captioning relies on text while videos rely on visual forms and audio. because search engine ranking relies primarily on text, it's not uncommon for YouTube videos to rank lower than transcriptions of the exact words. However, close captioning makes the best of both worlds. It's not only for people have a hard time hearing. You have to remember that some of your viewers may not be able to listen to your video, either because they're in a place where they shouldn't be watching your video or because the sound is working on the computer. Either way, a video that has closed captioning options looks to be better made, and at the same time, it makes itself accessible to a wider audience.
Would a Transcription Work as Well?
Transcriptions can work quite well in terms of overall search engine ranking. You can develop transcription for your video, link to the video itself, link back from the video on YouTube to the transcription, and so on. But the one advantage that close captioning has over a transcript is the fact that people can read a long as the video plays. It's also easier for them to read and watch at the same time. For this reason, closed captioning superior when it comes to overall customer interaction, but it provides similar results in terms of the search engine optimization strategy.