Ecommerce product cards
https://demo.skymage.net/v1/store.example.com/products/shirt.jpg?w=480&h=640&fit=cover&f=webp&q=82migration checklist
Migrate image delivery one page at a time
A good image CDN migration starts with proof on one public page: same origin, smaller variants, correct dimensions, and no broad media-library rewrite until the first URL pattern works.
migration gate
Do not migrate until this passes
Origin still works
The original app, CMS, S3 bucket, Bunny Storage, or public image host stays the source of truth.
One URL pattern wins
A repeated image path gets smaller while preserving crop, quality, and layout behavior.
Fallback is simple
The page can roll back to original URLs without changing upload or editorial workflows.
Expansion is obvious
The winning pattern maps cleanly to the next product grid, article list, gallery, or avatar surface.
migration checklist
The 48-hour image CDN migration test
Use this checklist before switching providers, replacing a plugin, rewriting templates, or moving image storage.
| Step | What to do | Pass condition |
|---|---|---|
| Inventory | Pick one page and list the above-fold image plus one repeated thumbnail or card pattern. | You know the original URL, rendered size, transfer size, and repeat count. |
| Variant | Create Skymage URLs for width, height, fit, WebP or AVIF, and quality. | The variant is visibly correct and smaller than the original. |
| Template | Swap only the chosen page or component, not the full media workflow. | The page still works if the test URL is rolled back. |
| Measure | Compare bytes, LCP image behavior, cache headers, and visual quality. | There is enough evidence to expand, adjust parameters, or stop. |
| Expand | Move the winning pattern to the next similar template. | The same URL contract applies without special-case image work. |
where to start
Choose the first migration surface by repeat count
The safest migration surface is usually not the largest image. It is the repeated image path where one correct URL pattern improves many page views.
Article archive cards
https://demo.skymage.net/v1/cms.example.com/uploads/post-cover.jpg?w=480&h=270&fit=cover&f=webp&q=82Marketplace listings
https://demo.skymage.net/v1/uploads.example.com/listings/photo.jpg?w=520&h=390&fit=cover&f=avif&q=82SaaS avatars or previews
https://demo.skymage.net/v1/app.example.com/users/42/avatar.png?w=96&h=96&fit=cover&f=webpfree check
Get the first migration surface picked for you
Send one public URL and Skymage will identify the first image path worth testing, the variant parameters to try, and the migration risks to avoid before expanding.