1.Use HTTPS:Always use HTTPS when connecting to a VPN to ensure secure browsing.

If you're looking for VPN servers that allow free flow, it's important to note that many VPN servers do not restrict the number of concurrent connections. However, the way you connect to the site can sometimes be a factor. Here are a few tips to help you avoid being blocked:

2. Enable HTTPS in Your Firewall: Many VPN servers will block HTTPS connections for security reasons.

3. Use a VPN with a Free Tier: Some VPNs offer free tiers for a limited time, allowing you to try out their service before committing.

4. Consider Using a VPN with a Free Trial or Offer: Some VPNs offer free trials or offers where you can test their service without paying.

If you're still having trouble, you can also check if the server you're connecting to is using a protocol like OpenVPN or Tor, which are known for allowing multiple concurrent connections.