As soon as you visit a website your IP address will be available to that site.
It is common for websites to keep a record of all IP addresses that visited with the data and time of the visit, even if this record is never used.
Your ISP also has a record of your internet activity.
Do websites know your IP address?
Every user has a unique IP address that identifies them. By using IP addresses, websites can track what each user does on their site and what pages they visit. Your IP address can be used to determine your location and is the primary piece of data that will be used to track you.
Can websites see your location?
From your IP address, a website can determine your rough geographical location – not down to street level, but generally your city or area. Still, an IP address can be combined with other techniques here to track your geographical location.
How long are IP addresses stored?
The Qwest/CenturyLink Law Enforcement Support Group informed us that IP-address logs are kept for approximately 1 year. As is also the case with other Internet Providers, Qwest/Century noted that personal details are only disclosed when the company receives a subpoena.
Why would a website block my IP address?
Once a website administrator notices that a specific user attached to a specific IP address is breaking the site’s Terms of Service, he can block that IP from being able to access the site. This means that nobody will ever be able to access the site again from that particular computer network.