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Original file line number Diff line number Diff line change
Expand Up @@ -332,7 +332,7 @@ A [service record (SRV)](https://www.cloudflare.com/learning/dns/dns-records/dns

Service Binding (SVCB) and HTTPS Service (HTTPS) records allow you to provide a client with information about how it should connect to a server upfront, without the need of an initial plaintext HTTP connection.

If your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/) and [proxied DNS records](/dns/proxy-status/), Cloudflare automatically generates HTTPS records on the fly, to advertise to clients how they should connect to your server.
If your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/), [proxied DNS records](/dns/proxy-status/), and is also using [Universal SSL](/ssl/edge-certificates/universal-ssl/), Cloudflare automatically generates HTTPS records on the fly, to advertise to clients how they should connect to your server.

For more details and context, refer to the [announcement blog post](https://blog.cloudflare.com/speeding-up-https-and-http-3-negotiation-with-dns/) and [RFC 9460](https://www.rfc-editor.org/rfc/rfc9460.html).

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2 changes: 1 addition & 1 deletion src/content/docs/dns/proxy-status/index.mdx
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Expand Up @@ -81,7 +81,7 @@ In this example, all traffic intended for `blog.example.com` will be treated as

### Protocol optimization

For proxied records, if your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/), Cloudflare automatically generates corresponding [HTTPS Service (HTTPS) records](/dns/manage-dns-records/reference/dns-record-types/#svcb-and-https) on the fly. HTTPS records allow you to provide a client with information about how it should connect to a server upfront, without the need of an initial plaintext HTTP connection.
For proxied records, if your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/) and is also using [Universal SSL](/ssl/edge-certificates/universal-ssl/), Cloudflare automatically generates corresponding [HTTPS Service (HTTPS) records](/dns/manage-dns-records/reference/dns-record-types/#svcb-and-https) on the fly. HTTPS records allow you to provide a client with information about how it should connect to a server upfront, without the need of an initial plaintext HTTP connection.

:::note
Both HTTP/2 and HTTP/3 configurations also require that you have an SSL/TLS certificate served by Cloudflare. This means that disabling [Universal SSL](/ssl/edge-certificates/universal-ssl/), for example, could impact this behavior.
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2 changes: 1 addition & 1 deletion src/content/docs/ssl/reference/browser-compatibility.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ To support non-SNI requests, you can:

[HTTPS Service (HTTPS) records](/dns/manage-dns-records/reference/dns-record-types/#svcb-and-https) allow you to provide a client with information about how it should connect to a server upfront, without the need of an initial plaintext HTTP connection.

If your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/) and [proxied DNS records](/dns/proxy-status/), Cloudflare automatically generates HTTPS records on the fly, to advertise to clients how they should connect to your server.
If your domain has [HTTP/2 or HTTP/3 enabled](/speed/optimization/protocol/), [proxied DNS records](/dns/proxy-status/), and is also using [Universal SSL](/ssl/edge-certificates/universal-ssl/), Cloudflare automatically generates HTTPS records on the fly, to advertise to clients how they should connect to your server.

:::caution
Both HTTP/2 and HTTP/3 configurations also require that you have an SSL/TLS certificate served by Cloudflare. This means that disabling Universal SSL, for example, could impact this behavior.
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