---
header: Legacy shared TLS domain
lang: en
last_updated: '2024-04-18'
url: https://docs.fastly.com/products/legacy-shared-tls
---

> **NOTE:** This page describes a legacy offering. To secure your domains with Fastly TLS, we recommend exploring one of our other [TLS service options](https://docs.fastly.com/products/tls-service-options).

Fastly offers a free TLS option that allows you to serve HTTPS traffic using an address like `example.global.ssl.fastly.net` via a shared Fastly domain.

This TLS option is subject to the following limitations:

- This option uses a shared domain name and does not support use with your own domain name (`www.example.com`). Customers typically use this TLS option when linking directly to assets (e.g., linking to `https://example.global.ssl.fastly.net/example.jpg`) or for testing purposes.
- You cannot DNS alias your own domain to the shared domain. If you do, a TLS name mismatch warning will appear in the browser.
- When using this TLS option, all traffic is routed through Fastly's entire global network.

If you have specific traffic routing, domain naming, or URL requirements, one of Fastly’s other [TLS service options](https://docs.fastly.com/products/tls-service-options) can provide you with more flexibility.