--- title: Product compatibility description: Cloudflare product compatibility guidelines for O2O custom hostname zones. image: https://developers.cloudflare.com/dev-products-preview.png --- > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/cloudflare-for-platforms/llms.txt > Use this file to discover all available pages before exploring further. [Skip to content](#%5Ftop) # Product compatibility As a general rule, settings on the customer zone will override settings on the SaaS zone. In addition, [O2O](https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/) does not permit traffic directed to a custom hostname zone into another custom hostname zone. The following table provides a list of compatibility guidelines for various Cloudflare products and features. Note This is not an exhaustive list of Cloudflare products and features. | Product | Customer zone | SaaS provider zone | Notes | | --------------------------------------------------------------------------------------------------------------------- | ------------- | ------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Access](https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/security/secure-with-access/) | Yes | Yes | | | [API Shield](https://developers.cloudflare.com/api-shield/) | Yes | No | | | [Argo Smart Routing](https://developers.cloudflare.com/argo-smart-routing/) | No | Yes | Customer zones can still use Smart Routing for non-O2O traffic. | | [Bot Management](https://developers.cloudflare.com/bots/plans/bm-subscription/) | Yes | Yes | | | [Browser Integrity Check](https://developers.cloudflare.com/waf/tools/browser-integrity-check/) | Yes | Yes | | | [Cache](https://developers.cloudflare.com/cache/) | Yes\* | Yes | Though caching is possible on a customer zone, it is generally discouraged (especially for HTML).Your SaaS provider likely performs its own caching outside of Cloudflare and caching on your zone might lead to out-of-sync or stale cache states.Customer zones can still cache content that are not routed through a SaaS provider's zone. | | [China Network](https://developers.cloudflare.com/china-network/) | No | No | | | [DNS](https://developers.cloudflare.com/dns/) | Yes\* | Yes | As a SaaS customer, do not remove the records related to your Cloudflare for SaaS setup.Otherwise, your traffic will begin routing away from your SaaS provider. | | [HTTP/2 prioritization ↗](https://blog.cloudflare.com/better-http-2-prioritization-for-a-faster-web/) | Yes | Yes\* | This feature must be enabled on the customer zone to function. | | [Image resizing](https://developers.cloudflare.com/images/optimization/transformations/overview/) | Yes | Yes | | | IPv6 | Yes | Yes | | | [IPv6 Compatibility](https://developers.cloudflare.com/network/ipv6-compatibility/) | Yes | Yes\* | If the customer zone has **IPv6 Compatibility** enabled, generally the SaaS zone should as well.If not, make sure the SaaS zone enables [Pseudo IPv4](https://developers.cloudflare.com/network/pseudo-ipv4/). | | [Load Balancing](https://developers.cloudflare.com/load-balancing/) | No | Yes | Customer zones can still use Load Balancing for non-O2O traffic. | | [Page Rules](https://developers.cloudflare.com/rules/page-rules/) | Yes\* | Yes | Page Rules that match the subdomain used for O2O may block or interfere with the flow of visitors to your website. | | [Origin Rules](https://developers.cloudflare.com/rules/origin-rules/) | Yes | Yes | Enterprise zones can configure Origin Rules, by setting the Host Header and DNS Overrides to direct traffic to a SaaS zone. | | [Client-side security](https://developers.cloudflare.com/client-side-security/) (formerly Page Shield) | Yes | Yes | | | [Polish](https://developers.cloudflare.com/images/polish/) | Yes\* | Yes | Polish only runs on cached assets. If the customer zone is bypassing cache for SaaS zone destined traffic, then images optimized by Polish will not be loaded from origin. | | [Rate Limiting](https://developers.cloudflare.com/waf/rate-limiting-rules/) | Yes\* | Yes | Rate Limiting rules that match the subdomain used for O2O may block or interfere with the flow of visitors to your website. | | [Rocket Loader](https://developers.cloudflare.com/speed/optimization/content/rocket-loader/) | No | No | | | [Security Level](https://developers.cloudflare.com/waf/tools/security-level/) | Yes | Yes | | | [Spectrum](https://developers.cloudflare.com/spectrum/) | No | No | | | [Transform Rules](https://developers.cloudflare.com/rules/transform/) | Yes\* | Yes | Transform Rules that match the subdomain used for O2O may block or interfere with the flow of visitors to your website. | | [WAF custom rules](https://developers.cloudflare.com/waf/custom-rules/) | Yes | Yes | WAF custom rules that match the subdomain used for O2O may block or interfere with the flow of visitors to your website. | | [WAF managed rules](https://developers.cloudflare.com/waf/managed-rules/) | Yes | Yes | | | [Waiting Room](https://developers.cloudflare.com/waiting-room/) | Yes | Yes | | | [WebSockets](https://developers.cloudflare.com/network/websockets/) | No | No | | | [Workers](https://developers.cloudflare.com/workers/) | Yes\* | Yes | Similar to Page Rules, Workers that match the subdomain used for O2O may block or interfere with the flow of visitors to your website. | | [Zaraz](https://developers.cloudflare.com/zaraz/) | Yes | No | | ```json {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/cloudflare-for-platforms/","name":"Cloudflare for Platforms"}},{"@type":"ListItem","position":3,"item":{"@id":"/cloudflare-for-platforms/cloudflare-for-saas/","name":"Cloudflare for SaaS"}},{"@type":"ListItem","position":4,"item":{"@id":"/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/","name":"SaaS customers"}},{"@type":"ListItem","position":5,"item":{"@id":"/cloudflare-for-platforms/cloudflare-for-saas/saas-customers/product-compatibility/","name":"Product compatibility"}}]} ```