Web browsing & internet speeds

Find out more about AT&T Internet plans and speed.

Many factors affect the internet service you purchased from AT&T. Learn how these factors affect your internet speed.

If your computer is running slower than normal, we can help. Try our tools and tips for cleaning things up.

Want smoother internet browsing? Find out how to clear your cookies, cache, and history.

Have one of our services? Use these supported operating systems and browsers to get the best results.

IPv6 is the future of Internet Protocol (IP) addresses. Learn more about it—and if your equipment is compatible.

IPv6 is the future of Internet Protocol (IP) addresses. Learn more about it—and if your equipment is compatible.

Learn how to use the AT&T speed test to measure your Wi-Fi gateway, All-Fi Hub, or device internet speed.