Audit beginner Works with: ChatGPT, Gemini, Claude

Image Optimization Audit

Table output Needs web browsing Has example

Review images for format, sizing, lazy loading, and delivery problems.

The Open buttons send the prompt text as currently shown below to that site only when you click. Fill in the placeholders first.

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Audit the images on my pages for speed and quality. Page URLs or an image list with file names, dimensions, file sizes, formats, and where used: [IMAGE_LIST]. Hosting and delivery method (CDN, plugin, framework): [DELIVERY_SETUP]. Site type and audience devices: [SITE_AND_DEVICES].

Return tables:
1. Image inventory: Image | Used where | Displayed size | File dimensions | File size | Format | Issue (oversized, wrong format, no responsive versions, not lazy loaded, above the fold but lazy, missing dimensions causing layout shift, missing alt text) | Recommended format and size | Estimated saving.
2. Format guide: which format for photos, graphics, icons, and animation, with browser support notes [VERIFY current support].
3. Delivery settings: responsive images, lazy loading, caching, compression level, and image CDN options.
4. Priority list: the five images that cost the most and how to fix them.

Then provide a step-by-step process for a new image (export size, compress, name, add alt text, test), the total page weight before and after (arithmetic from my data), and the effect on loading metrics expressed as likely direction, not exact numbers. Alt text suggestions should describe function, not just appearance.

Verify every fact, figure and claim in the output against your own records or the official documentation, and have a qualified professional check anything with legal, safety or financial consequences before you rely on or publish it.

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Optional: type your details and the prompt above updates. Nothing is saved or sent.

Replace each bracketed placeholder with your own details, then paste into ChatGPT, Gemini, Claude or another assistant.

See an example result (fictional data)
Image | Displayed | File | Size | Issue | Fix | Saving
hero.png | 1200x600 | 4000x2000 PNG | 3.4 MB | oversized, wrong format | Resize to 2400x1200, export WebP, ~180 KB | 3.2 MB
team.jpg | 300x300 | 3000x3000 | 1.9 MB | oversized | Provide 300 and 600 px versions with srcset | 1.8 MB
logo.png | 160x40 | 160x40 | 22 KB | fine, but could be SVG | Use SVG | 15 KB
Delivery: add lazy loading to below-the-fold images; keep it off the hero; set width and height to prevent layout shift.
Priority: hero, team photo, gallery set. Estimated page weight: 6.1 MB to 1.1 MB (arithmetic from the list). Alt text: describe function, e.g. "Our team outside the Leeds studio".

Illustrative only, made-up data. Your results will differ and must be reviewed.

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