Bitiful setup (Recommended)

Bitiful is ShrimpSend’s top recommended custom S3 provider: S3-compatible API, pay-as-you-go billing, and pricing that is often lower than major domestic clouds. See the official price comparison.

When to use

• You want cost-effective object storage with a stable S3-compatible service in China.
• You manage your own bucket and access keys on Bitiful.

Create a bucket

1. Sign in to the Bitiful console.
2. Create a new bucket. For security, use a private bucket.

Endpoint and region

On the bucket details page, find the service endpoint and availability zone:

• Endpoint must be https://s3.bitiful.net — the https:// prefix is required; do not omit it or use http://.
• Region is the availability zone code shown in the console.

Create Access Key / Secret Key

1. Add a sub-account (the sub-account name must not match the bucket name, or uploads may fail):

2. Grant read and write permissions to the sub-account:

3. Create a key for the sub-account and save the Access Key ID and Secret Access Key:

Configure CORS

Browser uploads require bucket CORS. Add a rule with Allowed Origins including at least:

https://xiachuan.net

Add https://www.xiachuan.net if you use the www subdomain. Allowed Methods: GET, PUT, POST, DELETE, HEAD. AllowedHeaders: * recommended. ExposeHeaders: at least ETag.

ShrimpSend settings

Open S3 configuration from either entry point:

1. Settings → S3 — saved globally for all devices signed into the same account.
2. S3 cloud relay session — open the S3 cloud relay chat and use S3 settings inside the session.

Fill in the fields from the Bitiful console:

Test connection

After saving, click Test connection. If it fails, check:

1. Endpoint includes https://.
2. Region and Bucket match the console.
3. Sub-account has read/write on the bucket.
4. CORS includes your web Origin.
5. Sub-account name does not conflict with the bucket name.

Links

• Bitiful
• Bitiful docs