- IPv4 and IPv6 are Internet protocols that use IP addresses to help devices and websites communicate, with IPv6 offering far more address capacity than IPv4.
- IPv6 reduces address limitations, supports modern networks, and allows websites to reach users on newer internet and mobile connections.
- Websites that support both IPv4 and IPv6 stay accessible, handle traffic more efficiently, and remain prepared for long-term internet growth.
Every website runs on numbers that most users never see. These numbers help devices find each other on the internet and exchange data without delay. When people search for my IP address or look up IP information, they are often trying to understand how this system works.
Here is the difference between IPv4 and IPv6 and why it matters for your website’s performance, access, and future growth.
What an IP Address Means
An IP address is a unique number assigned to every device connected to the internet. It works like a digital location that allows data to move from one system to another. When someone types a website address into a browser, the browser uses an IP address to locate the server hosting that site.
IP addresses also play a role in security, traffic tracking, and access control. Website owners often review IP information to monitor visitors, block harmful traffic, or diagnose connection issues.
How IPv4 Works
IPv4 is the older version of the Internet Protocol. It uses a 32-bit format and looks like four numbers separated by dots, such as 192.168.1.1. This format allows for about 4.3 billion unique addresses.
When the Internet was first developed, IPv4 seemed more than sufficient. Over time, the rapid growth of devices created a shortage. To manage this, systems began reusing addresses through methods like Network Address Translation. While this approach helped extend IPv4 usage, it added complexity and limited scalability.
Many websites still run on IPv4 today, and most internet services support it without issues. However, the available address pool continues to shrink.
How IPv6 Works
IPv6 was created to solve the address shortage problem. It uses a 128-bit format, which provides a vastly larger number of IP addresses. An IPv6 address includes letters and numbers separated by colons, such as 2001:0db8:85a3::8a2e:0370:7334.
This larger space allows every device to have a unique IP address without reuse. IPv6 also supports better routing and simpler network design. It reduces the need for workarounds used in IPv4 networks.
Many modern systems support IPv6 by default, even if users are not aware of it. When someone checks my IP address, they may see an IPv6 value if their network allows it.
Comparing IPv4 and IPv6 for Websites
The main difference between IPv4 and IPv6 lies in address size and availability. IPv4 has limited addresses, while IPv6 provides enough for long-term internet growth.
IPv6 handles connections more directly, which can reduce delays caused by address translation. This can improve loading times for users on IPv6-enabled networks. IPv4, while stable, relies on older routing methods that may not scale as well over time.
From a compatibility view, IPv4 still reaches more users. IPv6 adoption continues to grow, but both protocols currently operate together.
Why IPv6 Matters for Your Website
Websites that support IPv6 can reach users who rely on IPv6-only networks. This includes mobile networks and newer internet providers in many regions. Without IPv6 support, some users may face slower connections or limited access.
IPv6 also supports modern security frameworks and better traffic handling. While IPv4 remains usable, IPv6 aligns more closely with how the internet continues to expand. Search engines and hosting providers increasingly encourage IPv6 readiness. This helps future-proof websites as more traffic shifts toward IPv6 connections.
What Website Owners Should Know
Website owners should check whether their hosting provider supports both IPv4 and IPv6. Many platforms already do, but configuration still matters. Reviewing IP information at the server level helps confirm proper setup.
Supporting both protocols allows websites to serve users without disruption. It also reduces reliance on older network workarounds that may limit performance.
Closing Thoughts
IPv4 and IPv6 serve the same purpose but operate in different ways. IPv4 built the internet as we know it, while IPv6 supports its continued growth. Understanding how each works helps website owners make informed technical choices. As more users rely on newer networks, IPv6 support becomes an important part of staying accessible and reliable online.
At CanSpace Solutions, we work with Canadian businesses every day to make sure their networks are ready for how the internet actually works today. That means supporting both IPv4 and IPv6 in a way that is secure, reliable, and planned with growth in mind. If you are unsure how your current IP setup is configured or whether it is holding you back, our team is always happy to review it with you. Reach out and take the next step toward a stable, scalable online presence you can build on with confidence.
