On Page Seo
Image SEO
The practice of optimising images on a website so they rank in image search and contribute to overall page performance. It covers file names, alt text, compression, format, and lazy loading.
Why Image SEO Matters for SEO
Image search drives meaningful traffic that most SEOs ignore. Properly optimised images also improve page speed, which is a ranking factor. Unoptimised images are one of the most common reasons pages load slowly.
How Image SEO Works
Use descriptive file names, write accurate alt text, compress images before uploading, serve modern formats like WebP, and implement lazy loading for below-the-fold images. Size images to the actual display dimensions rather than relying on CSS to resize them.
Common Mistakes
- Uploading massive uncompressed images that tank page speed
- Using generic file names like IMG_4032.jpg
- Ignoring image sitemaps entirely
Want to go deeper?
Read the full guide: On-Page SEO →
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