Accessibility
Users who are deaf or hard of hearing need captions that give them information about the videos on a web page: e.g. who is speaking, what they are saying and what is happening.
When <video> elements have no <track> element with the attribute kind=”captions”, SeoChecker will notify it.
<video> element with the kind=”captions” attribute need minimum one track element.
<video width="300" height="200"> <source src="marathonFinishLine.mp4" type="video/mp4"> <track src="captions_en.vtt" kind="captions" srclang="en" label="english_captions"> <track src="audio_desc_en.vtt" kind="descriptions" srclang="en" label="english_description"> <track src="captions_es.vtt" kind="captions" srclang="es" label="spanish_captions"> <track src="audio_desc_es.vtt" kind="descriptions" srclang="es" label="spanish_description"> </video>
Learn more about Accessibility
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