---
title: Networking
description: Overview information about networking using our hosted or self-hosted services.  The following top-level domains are used for requests using our hosted services. TLS 1.2+ using port 443.  Refer to our
---

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# Networking

Overview information about networking using our hosted or self-hosted services. 

### Hosted domains

The following top-level domains are used for requests using our hosted services.

- Global Cloud: cobrowse.io
- EU Cloud: eu.cobrowse.io

### Protocols and ports

TLS 1.2+ using port 443. 

### Self-hosted

Refer to [our documentation](https://docs.cobrowse.io/enterprise-self-hosting/self-hosting-overview) for specific information for self-hosted deployments. 

#### Firewall

For more details about firewall configuration for self-hosted instances, see [https://docs.cobrowse.io/enterprise-self-hosting/advanced/firewalls](https://docs.cobrowse.io/enterprise-self-hosting/advanced/firewalls)<https://docs.cobrowse.io/enterprise-self-hosting/advanced/firewalls>.

### Network request formats

The HTTPS requests made to the API are predominately all JSON. Sessions contents transmitted through the sockets and recording services use binary content types.

SDKs use video/mp4 content type and efficient video codecs or in the case of Web the socket requests are made in a proprietary binary format. The Web SDK minimises the data transmitted by prioritising visible DOM elements.

### Questions?

Please email us at [hello@cobrowse.io](mailto:hello@cobrowse.io).

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