---
schema_version: "1"
id: b420c35ae0f99bd423d608fd6b88f626f89e89a72441f98b165ae11f498a71ee
title: eCDN
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/commerce/264-0-0/b2c_20_2_ecdn.md
canonical_url: https://help.salesforce.com/s/articleView?id=commerce.b2c_20_2_ecdn.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: c5cb4cf5700443d8e6a028b6e8e1e7f770e20275197a47f8adc6b35b5fc2774c
description: Review the new B2C Commerce eCDN feature in the 20.2 release.
products:
  - Commerce
  - B2C Commerce
release: "264"
---
# eCDN

Review the new B2C Commerce eCDN feature in the 20.2 release.

- **[Proxy Zone DNS CNAME Format Changes](https://help.salesforce.com/s/articleView?id=commerce.b2c_20_2_w6694727_proxy_zone_dns_cname_mb.htm&release=264.0.0&type=5)**  
    For new Proxy Zones, the DNS CNAME format now ensures that each generated CNAME is unique.