SEO for visual content: alt text, filenames, and AI image workflows

Key takeaways

• AI images still need human alt text. Models do not know your query intent.
• Filenames should describe the subject (ideogram-saas-pricing-poster.png), not img_9843.png.
• Generate in Ideogram / Firefly / Canva AI, but optimize in your CMS.
• Visual SEO supports pages; it rarely ranks a naked image alone for competitive commercial queries.

Table of contents

1. What actually matters
2. Alt text that helps
3. AI workflow checklist
4. FAQ

What actually matters

For most marketing sites:

1. Page content quality and intent match
2. Image compression and dimensions
3. Descriptive filenames
4. Accurate alt text
5. Captions when they add information

Generative origin does not earn bonus ranking. Thin pages with pretty AI art still underperform.

Alt text that helps

Write what a sighted user would need if the image failed to load, aligned to the page topic.

Weak: “AI image of futuristic dashboard”

Better: “B2B analytics dashboard highlighting cohort retention chart”

Skip keyword stuffing. Screen readers and image search both punish nonsense.

AI workflow checklist

1. Lock the page H1 and section claim before generating art.
2. Generate 2-4 candidates in your image tool of choice.
3. Export at the size you will ship (no huge 4k orphans).
4. Rename file to [subject]-[context].jpg/png/webp.
5. Write alt in the CMS, not in the Midjourney prompt field.
6. Add the image only if it clarifies the section. Decorative? Empty alt is correct.

Related hubs: Content marketing, Best AI image tools.