Introduction
Alt text social media. Google has just dropped a game-changing update. As of July 2025, the search engine giant is now indexing public Instagram posts from Business and Creator accounts. That means your Reels, carousels, captions, and yes, even your alt text can now appear in Google search results.
For years, social and search felt like separate tracks. You optimised your website for Google, then used social for engagement. But now the lanes have merged. Social media is becoming a serious SEO driver, and brands that don’t adapt risk being left at the back of the grid.
Why Google is reviewing alt text on social media
Alt text was originally designed for accessibility, helping screen readers describe images to visually impaired users. That remains its core purpose, but now it has a double role. With Google actively crawling social platforms, your alt text and keywords directly influence how your posts are understood, indexed, and surfaced in search results.
Think of alt text as both a usability tool and an SEO signal. Write it well, and you make your content inclusive while giving Google clear context about your images. Combined with smart captions, hashtags, and metadata, your social content becomes a discoverability powerhouse.
The benefits of alt text on social media
Alt text isn’t just another tick box task, it’s a strategic edge. Here’s why it matters:
- Accessibility first: Alt text ensures inclusivity, meeting standards like WCAG and ADA, and shows your brand values every user
- SEO reinforcement: Keywords in alt text help Google connect your posts with relevant searches, improving both image rankings and overall visibility
- Platform performance: Social platforms use image recognition to surface posts, and clear alt text gives their algorithms extra clarity
- Brand trust: Inclusive content builds credibility, and users notice when you go beyond the basics
How to write alt text that performs
Getting it right doesn’t take long, but it makes a big difference. Follow these principles:
Keep it descriptive and concise – Stick to around 125–140 characters. Focus on what’s important in the image, without filler like “picture of.”
Integrate keywords naturally – If your post is about alt text social media, make sure the phrase fits naturally. Google values clarity, not stuffing.
Highlight what matters – Cover people, actions, branding, text overlays, and emotions, anything central to the message of your post.
Use empty alt for decorative graphics – If an image doesn’t add meaning, for example a divider line, use alt=\"\". This keeps screen readers efficient.
Leverage AI but refine manually – AI tools can help you draft alt text, but always check for accuracy and relevance.
Final thoughts
This isn’t just another small update, it’s a turning point. With Google indexing social media posts, your Instagram content now has the power to rank on Google. Alt text has gone from “nice to have” to critical marketing fuel.
At OTM, we see alt text as part of a full throttle marketing strategy. It’s not optional, it’s how you keep your brand in pole position.
