Image SEO Checklist for Creators and Marketers
A practical image SEO checklist covering filenames, alt text, dimensions, compression, lazy loading, and social previews.
Open the related CropYourImage tool
| Format | Width | Height | Notes |
|---|---|---|---|
| Open Graph | 1200 | 630 | Social preview image for articles and pages. |
| Inline blog image | 1200 | 675 | Balanced content image size. |
| Thumbnail | 800 | 450 | Useful for cards and listings. |
Quick answer
Image SEO is not only about ranking in image search. It also improves page speed, accessibility, social sharing, and the overall quality of a page. The strongest workflow starts before upload: resize, compress, name the file clearly, and write useful alt text.
A filename should describe the image in plain language. Alt text should explain the image for someone who cannot see it, not repeat a block of keywords. If an image is decorative, it may not need detailed alt text, but meaningful article images usually do.
Dimensions and compression matter because heavy images slow pages down. A fast page is easier to crawl and better for users. Use modern formats where supported, but keep compatibility in mind when publishing to social platforms or older systems.
Recommended workflow
- Start with the largest clean source image you have.
- Choose the exact destination size before adding final text.
- Crop visually so the subject, logo, and key message stay inside the safe area.
- Export in JPG for photos, PNG for crisp graphics, or WebP for web use.
Checklist
- Resize images before upload.
- Compress without visible artifacts.
- Use descriptive filenames.
- Write human alt text.
- Add Open Graph images for important pages.