Linking Web Server to Domain

How to Link a Dynamic Map/Other Web Server to a Domain?

If you have a web server (for example, a Minecraft dynamic map via Dynmap, BlueMap, or a server Panel), you can easily link it to your domain through Cloudflare. This takes literally a couple of clicks!

How to Transfer Domain to Cloudflare?

If you don’t have a domain on Cloudflare yet, you need to transfer it first:

Quick Guide:

1. Register on Cloudflare (free)
2. Add your domain — click “Add Site” and enter your domain
3. Choose a plan — select the free plan (Free)
4. Cloudflare will show your current DNS records — review and confirm
5. Change NS servers at your registrar — Cloudflare will show 2 NS server addresses
6. Log in to your registrar’s website (where you bought the domain) and replace NS servers with those provided by Cloudflare
7. Wait — DNS servers will update within 24-48 hours (usually faster)

Step-by-Step Web Server Linking Guide

Step 1: Create an A Record with Proxying

1. Open Cloudflare dashboard
2. Select your domain
3. Go to DNS → Records
4. Click Add record

Fill in the fields:

Configuration example:

Click Save.

Step 2: Configure Origin Rules for Port Forwarding

Now you need to set up a rule that will redirect requests to the required port of your web server.

1. In Cloudflare dashboard, go to Rules → Overview
2. Click Create rule
3. Select Origin rule

Fill in the rule form:

Rule name:

Dynmap Port Forwarding

(or any other name that makes sense to you)

When incoming requests match… (Condition):

Select:

• Field: URL Full
• Operator: wildcard
• Value: https://map.mhcore.xyz/* (your subdomain with A record)

Then… (Action):

In the Destination Port section, select:

• Rewrite to: 25443 (specify your web server’s port)

Fill-in example:

Step 3: Save and Deploy the Rule

1. Review all settings
2. Click Deploy
3. Cloudflare will apply the rule automatically

https://map.mhcore.xyz

Step 4: Verify Functionality

1. Open a browser
2. Navigate to your subdomain address (e.g., https://map.mhcore.xyz)
3. You should see your dynamic map or web interface!

Multiple Web Services on One Domain

You can create multiple subdomains for different services:

Structure Example:

For each service:

1. Create a separate A record with proxying enabled
2. Create a separate Origin Rule with the corresponding port

Benefits of Using Cloudflare

✅ Free SSL — automatic HTTPS for your site
✅ DDoS protection — protection against attacks
✅ Caching — faster loading of static files
✅ CDN — your site will load faster worldwide
✅ IP hiding — your server’s real IP address will be hidden
✅ Analytics — free visitor statistics

Common Issues and Solutions

❌ Error 521 “Web server is down”

Cause: Cloudflare cannot connect to your server

Solution:

1. Check that the web server is running
2. Ensure the port is open in the firewall
3. Verify the IP address in the A record is correct
4. Make sure the port in Origin Rule is specified correctly

❌ Error 522 “Connection timed out”

Cause: Cloudflare cannot reach the server within the allotted time

Solution:

1. Check server accessibility from outside (via online port scanners)
2. Make sure the port is not blocked by the provider
3. Check firewall settings on the server

❌ Infinite loading or “Too many redirects”

Cause: Incorrect SSL/TLS settings

Solution:

1. Go to SSL/TLS → Overview
2. Set mode to Flexible (if your server doesn’t use HTTPS)
3. Or set to Full (if your server uses a self-signed certificate)

❌ Page opens but styles/scripts don’t load

Cause: Mixed Content — HTTPS page loading HTTP resources

Solution:

1. Go to SSL/TLS → Edge Certificates
2. Enable Always Use HTTPS
3. Enable Automatic HTTPS Rewrites

SSL/TLS Configuration

For correct web server operation through Cloudflare, configure SSL:

1. Go to SSL/TLS → Overview
2. Choose the appropriate mode:

Usage Examples

Example 1: Dynmap for Minecraft Server

Domain: map.mhcore.xyz
IP: 123.45.67.89
Dynmap Port: 8123

A Record:
- Name: map
- IP: 123.45.67.89
- Proxy: ON

Origin Rule:
- URL Full wildcard https://map.mhcore.xyz/*
- Rewrite to port 8123

Result: https://map.mhcore.xyz will show your Dynmap!

Example 2: Pterodactyl Control Panel

Domain: panel.mhcore.xyz
IP: 123.45.67.89
Panel Port: 8080

A Record:
- Name: panel
- IP: 123.45.67.89
- Proxy: ON

Origin Rule:
- URL Full wildcard https://panel.mhcore.xyz/*
- Rewrite to port 8080

Result: https://panel.mhcore.xyz will open the control panel!

Useful Links

• Official Cloudflare Rules Documentation
• Cloudflare SSL/TLS Configuration
• Troubleshooting Cloudflare Errors