> For the complete documentation index, see [llms.txt](https://docs.711proxy.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.711proxy.com/faq/getting-started.md).

# Getting started

- [How long can a sticky IP session last?](https://docs.711proxy.com/faq/getting-started/how-long-can-a-sticky-ip-session-last.md)
- [Why are my proxy credentials all the same? Am I only getting one IP address?](https://docs.711proxy.com/faq/getting-started/why-are-my-proxy-credentials-all-the-same-am-i-only-getting-one-ip-address.md)
- [How to use the sub-user feature?](https://docs.711proxy.com/faq/getting-started/how-to-use-the-sub-user-feature.md)
- [What are the differences between the authentication methods of API and username/password?](https://docs.711proxy.com/faq/getting-started/what-are-the-differences-between-the-authentication-methods-of-api-and-username-password.md)
- [How many concurrent sessions can I have?](https://docs.711proxy.com/faq/getting-started/how-many-concurrent-sessions-can-i-have.md)
- [How to use the test command in username/password authentication?](https://docs.711proxy.com/faq/getting-started/how-to-use-the-test-command-in-username-password-authentication.md)
- [Can the same IP address be whitelisted for multiple accounts?](https://docs.711proxy.com/faq/getting-started/can-the-same-ip-address-be-whitelisted-for-multiple-accounts.md)
- [What is username/password authentication? How does it work?](https://docs.711proxy.com/faq/getting-started/what-is-username-password-authentication-how-does-it-work.md)
- [What is API? How can I use API to access proxies?](https://docs.711proxy.com/faq/getting-started/what-is-api-how-can-i-use-api-to-access-proxies.md)
- [How do I use residential proxies on my iPhone?](https://docs.711proxy.com/faq/getting-started/how-do-i-use-residential-proxies-on-my-iphone.md)
- [How to use residential proxies with the enterprise plan?](https://docs.711proxy.com/faq/getting-started/how-to-use-residential-proxies-with-the-enterprise-plan.md)