# Limits of the proxy service for the public preview in US East (Ohio) region only
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**Note**  
Network Firewall Proxy is in public preview release and is subject to change. 

**Service resource limits**
+ Number of Proxies per account - 1
+ Number of Proxy configuration per account - 50
+ Number of Proxy rule groups per account - 500
+ Number of proxy configuration shared with proxies - 5
+ Maximum size of condition-key:condition-value map per rule group - 30 MB
+ Maximum size per condition-key:condition-value map per rule - 30 KB
+ Maximum condition value - 1 KB
+ Number of EgressProxyRules per rule group - 1000
+ Number of EgressProxyRuleGroups per Proxy Configuration - 10
+ Network Firewall proxy preview supports only HTTP/1.1 protocol. HTTP/2 (H2) and HTTP/3 (H3) traffic will not be supported – these connections may be dropped or result in timeouts. Ensure your applications use HTTP/1.1 when routing through the Network Firewall proxy.