Where are my files stored, exactly?
File Storage & Document Formats
Your files are stored securely in Microsoft’s Azure UK South data centre - encrypted, region-locked, and access-controlled at every layer.
?? Exact Storage Location
- Region: UK South (London), hosted by Microsoft Azure
- Storage tier: Azure Blob Storage (hot tier)
- Redundancy: Locally redundant storage (LRS) to ensure high availability
?? How Your Files Are Protected
- Encrypted at rest: 256-bit AES encryption enabled by default
- Encrypted in transit: All files are served over TLS (HTTPS)
- Access via signed URLs only: Each file is accessed through a one-time, time-limited link tied to your login session
- No open access: CertNudge staff cannot browse, list, or view bucket contents
Your uploads never leave the UK and remain fully under GDPR jurisdiction. If you delete a file, it’s removed from active storage and purged from backup after 35 days.