How do I configure a firewall for WeTransfer?

Firewalls help protect your network by deciding what traffic gets in or out. To keep WeTransfer and all its features working smoothly, make sure the domains and hostnames below are on your firewall's allowlist. Check your firewall's setup guide for the exact steps.

WeTransfer uses HTTPS (port 443) for secure communication and the QUIC protocol for faster, more efficient transfers. QUIC is the transport layer for HTTP/3 and runs over UDP — your firewall should allow both TCP traffic on port 443 and UDP traffic on port 443.

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Which protocols, ports, and domains to allowlist in your firewall so WeTransfer and its features work smoothly.

How do I configure a firewall for WeTransfer? — WeTransfer

Troubleshooting

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Your files are secure with WeTransfer. Two-factor authentication and data encryption are always included—but with WeTransfer Pro, you get even more security. Control file access with password protection and custom link expiration.

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How do I configure a firewall for WeTransfer?

Protocols and ports

Core WeTransfer domains

WeTransfer.net domains

Short links

Amazon S3 storage

Observability and monitoring

Background images

Analytics and advertising

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How do I configure a firewall for WeTransfer?

Protocols and ports

Core WeTransfer domains

WeTransfer.net domains

Short links

Amazon S3 storage

Observability and monitoring

Background images

Analytics and advertising

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