Tracker GIF (Clear GIF) — electronic images that are usually not visible to site visitors that allow a website to count those who have visited that page or to access certain cookies.
Trace route — the course that a packet travels across the Internet from one computer to another
Query string — the extended string of a URL after the standard website address. This data begins with a question mark and usually contains the search information requested by the user. The website uses this string to provide the requested information to the user.
Proxy server — a proxy server is a system that caches items from other servers to speed up access. On the web a proxy first attempts to find data locally and if its not there fetches it from the remote server where the data resides permanently.
Privacy seal program — a program that certifies a site’s compliance with the standards of privacy protection. Only those sites that comply with the standards are able to note certification
GUID — Acronym for globally unique identifier. This unique code is used to identify a computer, user, file, etc for tracking purposes.
Ad blocker — software placed on a user’s personal computer that prevents advertisements from being displayed on the web. Benefits of an ad blocker include the ability of web pages to load faster and the prevention of user tracking by ad networks
Ad networks — companies that purchase and place banner advertisements on behalf of their clients
Anonymizer — a service that prevents web sites from seeing a user’s Internet protocol (IP) address. The service operates as an intermediary to protect the user’s identity
Digital certificate — using encryption technology a document can be digitally stamped or certified as to its place of origin. A certification authority supports or legitimizes the certificates
Digital signature — digital certification or stamp that authenticates an individual’s signature is legitimate. This is done using encryption technology.
Encryption — the scrambling of digital information so that it is unreadable to the average user. A computer must have digital keys to unscramble and read the information.