---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/sendgrid/ui/sending-email/content-delivery-networks/using-keycdn-as-your-content-delivery-network-cdn#article
headline: Using KeyCDN as your Content Delivery Network (CDN)
description: Setup your Content Delivery Network with KeyCDN for effective click tracking. Follow our step-by-step guide and enhance your SSL setup process.
url: https://www.twilio.com/docs/sendgrid/ui/sending-email/content-delivery-networks/using-keycdn-as-your-content-delivery-network-cdn
inLanguage: en
dateModified: 2026-07-21T11:17:13.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# Using KeyCDN as your Content Delivery Network (CDN)

To use KeyCDN as your CDN for SSL click tracking, create a pull zone pointing to SendGrid, configure SSL and a CNAME record, then ask SendGrid support to enable SSL click and open tracking.

This section is maintained by KeyCDN. If you have any questions about KeyCDN, [contact their support team](https://www.keycdn.com/support).

[Sign up for KeyCDN](https://app.keycdn.com/signup) or log in to your
existing account.

Create a pull zone and point the origin URL to [https://sendgrid.net](https://sendgrid.net).

![KeyCDN interface showing general and pull zone settings with active status and sendgrid.net URL.](https://docs-resources.prod.twilio.com/7be7ab6c313f0544e2a904d97b736d91a5279eb38d8adb18d6f1acc442cc1183.png)

Enable SSL and HTTP/2 (custom SSL or Let's Encrypt).

![KeyCDN settings with SSL set to Let's Encrypt, HTTP/2 enabled, and Secure Token disabled.](https://docs-resources.prod.twilio.com/390a1656bb6939d26c88849e00f3ed30c6342770c0699a69fa19a90befde0ce5.png)

Enable the option "Forward Host Header."

![KeyCDN interface showing Forward Host Header set to enabled.](https://docs-resources.prod.twilio.com/c55707d507e5ec2819dd90038cf74900dfb8a26f320a9de9fc1b6a299f05bf90.png)

Create a CNAME record in your DNS settings pointing the alias you want to use for your email branded link domain (e.g. email.domain.com) to the Zone URL provided within your KeyCDN dashboard (e.g. sendgrid-1c6b.kxcdn.com). Then, add that alias as a Zonealias.

![Add Zonealias form with fields for alias and zone, wildcards supported.](https://docs-resources.prod.twilio.com/25031c8600604f840de917be6782dc70cfe2000f187782dd78d2f786b4e02cf9.png)

Finally, [contact SendGrid support](https://support.sendgrid.com/hc/en-us), and they'll validate the CDN settings and enable SSL click and open
tracking.