S3 API Compatibility

The S3 API (Simple Storage Services) has been the global standard for object storage for many years. It provides interoperability and compatibility of various object storage systems that adhere to this standard. IONOS S3 Object Storage has one of the highest levels of S3 API support.

Please also refer to the IONOS S3 Object Storage API documentation for detailed information.

Feature	Supported	Notes
Bucket CRUD	Yes
Object CRUD	Yes
Object Copy	Yes	Cross-regional copying is not supported
Multipart Uploads	Yes
Pre-Signed URLs	Yes	Signature types v2 and v4 are supported
Bucket ACLs	Yes
Object ACLs	Yes
Block Public Access	Yes	Only via the API
Bucket Policies	Yes
Object Policies	Yes
CORS Configuration	Yes	Only via the API
Bucket Versioning	Yes
Bucket Replication	Yes	Intraregional and cross-regional replication are supported
Bucket Tagging	Yes	Only via the API
Object Tagging	Yes	Only via the API
Bucket Lifecycle	Yes
Bucket Access Logging	Yes
Bucket Encryption Configuration	Yes	Only via the API
Object Encryption	Yes	Only via the API
Bucket Websites	Yes
Bucket Inventory	Yes	Only via the API
Object Lock	Yes	Only via the API
Legal Hold	Yes	Only via the API
Object Torrent	Yes	Only via the API
Identity and Access Management (IAM)	No
Security Token Service (STS)	No
Multi-factor Authentication	No
Bucket Notifications	No
Request Payment	No
Bucket Metrics	No
Bucket Analytics	No
Bucket Accelerate	No
S3 Select	No