Cloudflare Modes Compared: Proxy vs. DNS-only Explained

Cloudflare offers three primary modes for managing website traffic: Proxy (Orange Cloud), DNS-only (Grey Cloud), and Development Mode. For most users, the Proxy mode is the best choice because it provides free SSL encryption, DDoS protection, and performance optimization instantly. You can switch between these modes in under 10 seconds via the Cloudflare dashboard to balance security needs with troubleshooting requirements.

What are the main differences between Proxy and DNS-only?

The Proxy mode, often called the "Orange Cloud," acts as a shield between your visitors and your server. When this is active, Cloudflare hides your real IP address (the unique string of numbers that identifies your server) and replaces it with their own. This prevents hackers from attacking your server directly while allowing Cloudflare to compress your files so your site loads faster.

DNS-only mode, or the "Grey Cloud," works like a simple phone book. It tells a visitor's browser exactly where your server is located without adding any extra layers. In this mode, you lose all security features like the Web Application Firewall (WAF - a filter that blocks malicious web traffic) and speed tools. You would typically only use this for specific services like mail servers or when a third-party tool requires a direct connection to your IP.

We've found that beginners often accidentally leave their records on "DNS-only," which leaves their site vulnerable to basic attacks. Always check for the orange icon next to your "A" records (the records that point your domain name to your server's IP) to ensure you are protected.

When should you use Development Mode?

Development Mode is a temporary setting that tells Cloudflare to stop showing "cached" versions of your site. Caching is the process where Cloudflare saves a copy of your website images and code to serve them faster to visitors. While great for speed, caching can be frustrating when you are making design changes because you won't see your updates immediately.

You should turn on Development Mode whenever you are editing your CSS (the code that controls your site's colors and fonts) or updating your site's layout. This mode stays active for three hours by default before turning itself off automatically. This safeguard ensures your site doesn't stay slow forever if you forget to flip the switch back.

Don't worry if your site feels slightly slower while this is active. It is normal for page speeds to dip during development because every request has to travel all the way to your original server instead of being served from Cloudflare's nearby global network.

How do you change your Cloudflare mode?

Changing your mode is a straightforward process that doesn't require any coding. Follow these steps to adjust your settings:

Step 1: Access your DNS settings Log into your Cloudflare dashboard and select your website. Click on the "DNS" icon in the left-hand sidebar to see your list of records.

Step 2: Locate the Proxy status column Look for the column labeled "Proxy status" next to your domain records. You will see either an orange cloud icon or a grey cloud icon.

Step 3: Toggle the switch Click the "Edit" button on the far right of a record. Click the cloud icon to toggle it between "Proxied" (Orange) and "DNS only" (Grey), then click "Save."

What you should see: The cloud icon will change color immediately. Within a few minutes, your site will either start routing through Cloudflare's security net or begin connecting directly to your server.

What are the common mistakes to avoid?

One frequent "gotcha" for beginners is the "Redirect Loop" error. This usually happens when you turn on the Proxy mode but have your SSL (Secure Sockets Layer - the technology that keeps internet connections secure) set to "Flexible" instead of "Full." In this scenario, Cloudflare tries to talk to your server in a way your server doesn't expect, causing the site to crash.

Another mistake is trying to proxy "MX records" (Mail Exchange records - the settings that handle your email). Cloudflare's proxy only works for web traffic like HTTP and HTTPS. If you try to proxy your email records, your inbox will stop receiving messages. Always keep your mail-related records on the "Grey Cloud" (DNS-only).

It is also common to forget that Cloudflare needs a few minutes to "propagate" (the time it takes for changes to spread across the internet). If you flip a switch and don't see the result in two seconds, wait at least five minutes before trying to change it again.

Which SSL mode works best with the Proxy?

When you enable the Proxy mode, you must choose an SSL encryption level. For most modern setups using platforms like WordPress or Ghost on a VPS (Virtual Private Server), you should choose the "Full (Strict)" setting. This ensures that the data is encrypted both from the visitor to Cloudflare and from Cloudflare to your server.

If you are using a very basic web host that doesn't allow you to install your own security certificates, you might be tempted to use "Flexible" mode. However, this is less secure because the data traveling between Cloudflare and your host is not encrypted. We recommend using "Full" whenever possible to maintain the highest standard of privacy for your users.

How do you verify which mode is active?

You can verify your status without even looking at the dashboard. You can use a "Whois" tool or a simple terminal command to see which IP address your site is using.

# Type this in your terminal or command prompt
nslookup yourdomain.com

What you should see: If the Proxy is active, the result will show Cloudflare-owned IP addresses. If you are in DNS-only mode, the result will show your actual server IP address provided by your hosting company.

Next Steps

Now that you understand the different modes, you should audit your DNS records to ensure only the necessary ones are proxied. Start by ensuring your main website record is "Orange Clouded" and your mail records remain "Grey Clouded." If you're planning on building new features today, try toggling on Development Mode to see how it affects your workflow.

For more technical details on specific record types, visit the official Cloudflare DNS documentation.