Cookies are small files that are stored on a user’s computer. They are designed for a modest amount of client-specific data and the website, and can be accessed from either the web server or the client machine. In this way, the server can serve a page that is tailored to a specific user, or the page itself can contain a script that knows the cookie data and thus contains information from a visit to the next website (or website). .
ARE COOKIES ENABLED IN MY BROWSER?
To check if your browser is configured to accept cookies, visit the Cookie Checker. This site attempts to create a cookie and report whether it was successful or not.
For information on how to enable or disable cookies, see “Enable Cookies”.
For information on deleting and deleting cookies, see “Deleting Cookies”.
Can I see the cookies I have on my computer?
Most browsers have a configuration screen that allows the user to see which cookies have been stored on the computer and optionally delete them. See the cookie preview page for more information.
Please note that a website cannot display cookies set by other websites as this would pose a privacy and security issue.
WHAT’S IN A COOKIE?
Each cookie is effectively a small lookup table containing pairs of values (keys, dates) – for example (firstname, John) (firstname, Smith). After the cookie has been read by code on the server or client computer, the data can be retrieved and used to properly customize the web page.
When are cookies created?
Writing data to a cookie is usually done when loading a new webpage. For example, when you click the submit button, the data management page is responsible for storing the values in a cookie. If the user has cookies disabled, the writing operation will not be successful and subsequent websites that rely on the cookie must take a default action or prompt the user to re-enter the information stored in the cookie.
WHY ARE COOKIES USED?
Cookies are a convenient way of transferring information from one session on one website to another, or between sessions on related websites, without having to load a server with an enormous amount of data storage. Storing data on the server without using cookies would also be problematic as it would be difficult to retrieve a specific user’s information without requiring authentication each time the website is visited.
When a large amount of information needs to be stored, a cookie can simply be used as a means of identifying a specific user so that additional related information can be searched in a server-side database. For example, when a user visits a website for the first time, they can choose a username, which is stored in the cookie, and then provide data such as password, name, address, preferred font size, page layout, and so on. This is all information stored in the database with the username as the key. Later, when the site is verified, the server reads the cookie to find the username and then retrieves all the user information from the database without re-entering it.
How long does a cookie last?
The expiry time of a cookie can be specified when the cookie is created. By default, the cookie is destroyed when the current browser window is closed. However, any period of time can remain after that.
WHO CAN ACCESS COOKIES?
When a cookie is created, you can control its visibility by setting the “root domain”. It is then accessible to any URL belonging to that root. For example, the root could be set to “whatarecookies.com” and the cookie would then be available for the websites “www.whatarecookies.com” or “xyz.whatarecookies.com” or “whatarecookies.com”. This can be used to allow related pages to “talk” to each other. It is not possible to set the root domain to “parent” domains such as “.com” or “.co.uk” as this would allow broad access to the cookie.
By default, cookies are visible to all paths in their domain. However, at the time of creation, they may be restricted to a specific subpath, e.g. B. “www.whatarecookies.com/images”.
HOW SAFE ARE COOKIES?
There are many concerns about privacy and security online. Cookies do not pose a threat to privacy in and of themselves, as they can only be used to store information that the user has voluntarily or already provided on the web server. While this information may be made available to certain third party websites, it is no worse than being stored in a centralized database. If you are concerned that the information you provide to a web server will not be considered confidential, you should ask yourself whether you actually need to provide that information.
WHAT ARE THE TRACKING COOKIES?
Some commercial websites contain embedded advertising materials provided by a third-party website. Such ads may set a cookie for that third-party site containing information provided to them by the site, which includes. This information may include the name of the website, specific products viewed, pages visited, etc. If the user subsequently visits another website that contains a similar embedded ad from the same third-party website, the advertiser can read the cookie and derive some information from it User’s browsing history. This allows publishers to serve targeted ads in the interest of the user, so in theory they have a higher chance of being relevant to the user. However, many people view such “tracking cookies” as an invasion of privacy, as they allow an advertiser to create user profiles without their consent or knowledge.