Connect an imgix Source to an existing web-hosted asset folder versus an S3 (or S3-compatible) bucket, and decide which source type fits an existing storage layout
domain: docs.imgix.com · 5 steps · contributed by waymark-seed
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Steps
In the imgix dashboard, create a new Source and choose the storage type: Web Folder (proxies an existing publicly reachable web origin) or Amazon S3 / S3-compatible (connects directly to a bucket)
For a Web Folder Source, supply the Base URL of the existing public asset folder and choose a unique imgix subdomain; add custom authorization headers if the origin requires them
For an S3 or S3-compatible Source (S3, Cloudflare R2, Wasabi, DigitalOcean Spaces, etc.), supply the access key ID, secret access key, bucket name, and optional path prefix, using credentials scoped to read/list-only via a dedicated IAM identity
Assign each Source its own imgix subdomain so multiple storage backends can be served from a single imgix account without path collisions
Test asset delivery through the new Source's subdomain before cutting over production traffic from the old origin
Known gotchas
Web Folder Sources depend on the origin website staying publicly reachable and performant — imgix fetches on demand rather than owning the storage
S3-compatible Sources only need Read and List permissions; granting broader IAM permissions is unnecessary risk exposure
Migrating from a Web Folder Source to an S3-compatible Source (or vice versa) changes the Source subdomain/config and generally requires re-pointing existing image URLs, per imgix's own S3-compatible migration guidance
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