# Protocols

### HTTP

Our documentation includes code examples showcasing how to connect to the proxies using `HTTP` protocol. The protocol is supported by common libraries and third-party software.

### HTTPS

You can also use the fully encrypted `HTTP` connection using `HTTPS` protocol for an extra layer of security. For that, you have to add `https://` to your proxy entry point. For example: `https://pr.oxylabs.io:7777` (this also applies to [country-specific entry nodes](https://developers.oxylabs.io/proxies/residential-proxies/location-settings/select-country)). 

Please note that some libraries (or their older versions) and some 3rd party tools may not support `HTTPS` protocol, so double-check before making changes to your code.

### **HTTP/3**

{% hint style="warning" %}
**Note:** HTTP/3 support is not enabled on our proxies by default. Please contact your account manager to enable access.
{% endhint %}

`HTTP3` is supported via proxies that can handle `UDP` traffic, as it is based on `QUIC`, a UDP-based transport protocol.

Standard `HTTP`/`HTTPS` proxy endpoints are not compatible with `HTTP3`, so to proxy requests, you need to use a `SOCKS5` proxy with `UDP` traffic support, available through the following dedicated endpoint:

```
socks.pr.oxylabs.io:7777
```

Most common tools do not natively support `HTTP3` over `SOCKS5` with `UDP`, so custom implementations may be required, such as our custom [HTTP/3 Go solution](https://github.com/oxylabs/gohttp3viaSOCKS5UDP) on GitHub.

{% hint style="info" %}
**Note:** Make sure your firewall allows UDP traffic on the required ports, as many ports block UDP by default
{% endhint %}

### **SOCKS5** 

{% hint style="info" %}
`SOCKS5` `UDP` connection is now available in beta. Contact your Account Manager or Customer Success team to enable testing.
{% endhint %}

Oxylabs Residential Proxies `SOCKS5` protocol does not work with Chrome, so we suggest using Firefox instead.

Our Residential Proxies support only `TCP` connection at the moment. \
For using `SOCKS5` protocol, you have to add `socks5h` in your request, for example:

```bash
curl -x socks5h://pr.oxylabs.io:7777 -U "customer-USERNAME:PASSWORD" ip.oxylabs.io/location
```

Please note that at the moment, `SOCKS5` protocol does not support country specific entry nodes. You can target specific locations by adding [**additional parameters**](https://developers.oxylabs.io/proxies/residential-proxies/making-requests) in your username. Here is a sample of targeting France:

```bash
curl -x socks5h://pr.oxylabs.io:7777 -U "customer-USERNAME-cc-FR:PASSWORD" ip.oxylabs.io/location
```

{% hint style="info" %}
Note that some websites may identify a proxy IP when using the`SOCKS5` protocol. We highly suggest switching to an alternative protocol in such instances. 
{% endhint %}

### Ports of proxies

The default configuration of proxy ports includes `80` and `443`, which are standard ports designed to accommodate the `HTTP` and `HTTPS` protocols, as outlined in the table below. To access other ports, it is necessary to undergo compliance verification, please contact our [**support**](mailto:support@oxylabs.io).

| Protocol | Port |
| -------- | ---- |
| `HTTP`   | 80   |
| `HTTPS`  | 443  |