Subprocessors

Last updated: February 2026

Zelio uses the following third-party service providers (subprocessors) to operate the platform. Each subprocessor is contractually bound to handle your data securely and in accordance with applicable data protection laws.

ProviderPurposeData TypesLocation
SupabaseDatabase, authentication, row-level security, secret vaultAccount data, project data, secrets (encrypted)US / EU
CloudflareCDN, Workers (compute), R2 (object storage), Secrets Store, WAFApplication code, build artifacts, platform secrets, traffic dataGlobal
ModalSandboxed execution for build, verification, and preview environmentsGenerated code, build outputs, preview sessionsUS
VercelDeployment hosting for published user applicationsApplication bundles, deployment metadata, custom domainsGlobal
StripePayment processing and subscription billingBilling information, payment methods, subscription statusUS / EU
PostHogProduct analytics and event trackingUsage events, feature adoption metrics (anonymized)EU
SentryError monitoring and crash reportingError logs, stack traces, performance dataUS

Changes to Subprocessors

We will notify workspace owners via email at least 30 days before adding new subprocessors or making material changes to existing ones. If you object to a new subprocessor, you may terminate your subscription before the change takes effect.

Data Processing Agreement

Enterprise customers may request a Data Processing Agreement (DPA) that covers all subprocessors listed above. Contact us at privacy@zelio.ai for details.