Captions and Accessibility
Branding & StrategyAlso: Closed Captions · Video Accessibility · Accessible Content
Quick definition
Captions and accessibility refers to adding text overlays, alt text and other accommodations to marketing content so it can be understood by people who are deaf, hard of hearing, using a screen reader or simply watching without sound. It covers closed captions, subtitles, alt text and accessible design choices across video, social media and web content.
How it varies across Australia
Caption use on Australian brand video has risen sharply as social platforms default to sound-off autoplay, but coverage is uneven. Paid campaign creative tends to be captioned well ahead of organic and long-form content, which is often left with raw auto-generated text nobody has checked.
See content and social performance across Australian industries →What it actually means
Most people assume captions exist for deaf and hard-of-hearing audiences. That's true, but it's a small part of the real usage. The bigger reason captions matter is that most video marketing is watched on mute, in a feed, on a train, at a desk next to a colleague. If your message depends on sound, a huge share of your audience never receives it at all.
Accessibility work extends past captions. Alt text describes images for screen readers. Colour contrast affects users with low vision. Transcript files support search engine optimisation (SEO) and let users skim content instead of watching it. All of it sits under the same idea: content should work for the person interacting with it, not just the person who made it.
The engagement rate lift from captioning video is one of the more reliable findings in social media marketing, because the barrier removed is so basic. Content marketing teams that treat accessibility as a user experience decision rather than a compliance checkbox tend to see it pay off across channels, not just the ones with legal exposure.
Sound-off is the default now, not the exception. A caption is not an accessibility add-on, it is how most people are already watching.
How it shows up
Accessibility shows up as auto-generated captions full of misheard words on a brand's Reels. It shows up in a website audit where every product image has empty alt text. It shows up in a support inbox when a customer using a screen reader can't complete checkout. And it shows up quietly in engagement rate data, where captioned video consistently outperforms uncaptioned video watched in the same sound-off environment.
Where people get this wrong
Related terms
Common questions
Do captions actually improve engagement or is that a myth?
It's well supported. Most social video is watched with sound off by default, so captioned content reaches viewers that uncaptioned content simply misses. The lift shows up consistently across platforms because the barrier being removed is so basic.
Are auto-generated captions good enough?
They're a starting point, not a finished product. Auto-captions regularly misread brand names, product terms and numbers. A quick human check before publishing avoids embarrassing errors and keeps the caption trustworthy for the audience relying on it.
What's the difference between captions and subtitles?
Captions include sound cues like music and speaker labels and are built for viewers who can't hear the audio at all. Subtitles assume the viewer can hear but not understand the language, so they translate dialogue without describing other sounds.
Does accessibility work help with search engine optimisation?
Indirectly, yes. Transcripts and alt text give search engines more indexable text tied to your content, and accessible pages tend to have better user experience signals overall. It's a side benefit though, not the main reason to do the work.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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