What is a cookie?
A cookie is a harmless text file that is stored in your browser when you visit almost any website. The purpose of the cookie is to allow the website to remember your visit when you return to browse that page. Although many people are not aware of it, cookies have been used for over 20 years, since the first browsers for the World Wide Web appeared.
What is NOT a cookie?
It is not a virus, a trojan, a worm, spam, spyware, nor does it open pop‑up windows.
What information does a cookie store?
Cookies do not usually store sensitive information about you, such as credit card or banking data, photographs, your ID number, or personal information, etc. The data they store is technical information, personal preferences, content customization, and similar details.
The web server does not associate you as a person but rather your web browser. In fact, if you usually browse with Internet Explorer and then try browsing the same website with Firefox or Chrome, you will see that the website does not recognize you as the same person because it is actually associating the browser, not the individual.
What types of cookies exist?
- Technical cookies: These are the most basic and allow, among other things, the website to know whether a human or an automated application is browsing, whether an anonymous or registered user is browsing, and basic tasks necessary for the functioning of any dynamic website.
- Analytics cookies: They collect information about the type of browsing you are performing, the sections you use most, products viewed, time periods of use, language, etc.
- Advertising cookies: They display advertising based on your browsing habits, your country of origin, language, etc.
What are first‑party and third‑party cookies?
First‑party cookies are generated by the website you are visiting, while third‑party cookies are generated by external services or providers such as Facebook, Google, etc.
What happens if I disable cookies?
To help you understand the impact of disabling cookies, here are some examples:
- You will not be able to share content from that website on Facebook or any other social network.
- The website will not be able to adapt its content to your personal preferences, as usually happens in online stores.
- You will not be able to access the personal area of the website, such as My Account, My Profile, or My Orders.
- Online stores: It will be impossible to make online purchases; you would need to do so by phone or by visiting the physical store if available.
- You will not be able to customize your geographic preferences such as time zone, currency, or language.
- The website will not be able to perform web analytics on visitors and traffic, making it harder for the site to remain competitive.
- You will not be able to write on the blog, upload photos, post comments, rate or review content. The website will also not be able to determine whether you are a human or an automated application posting spam.
- Sector‑specific advertising cannot be displayed, reducing the website’s advertising revenue.
- All social networks use cookies; if you disable them, you will not be able to use any social network.
Can cookies be deleted?
Yes. You can not only delete them but also block them, either generally or specifically for a particular domain.
To delete cookies from a website, go to your browser’s settings, locate the cookies associated with the domain in question, and proceed to delete them.
Cookie settings for the most popular browsers
Chrome
(These steps may vary depending on the browser version.)
- Go to Settings or Preferences via the File menu or by clicking the customization icon at the top right.
- You will see different sections; click on Show advanced settings.
- Go to Privacy, then Content settings.
- Select All cookies and site data.
- A list will appear with all cookies sorted by domain.
- To make it easier to find cookies from a specific domain, enter part or all of the address in the Search cookies field.
- After filtering, one or several lines with the requested website’s cookies will appear. Select them and click the X to delete them.
Internet Explorer
(These steps may vary depending on the browser version.)
- Go to Tools, then Internet Options.
- Click on Privacy.
- Move the slider to adjust the desired privacy level.
Firefox
(These steps may vary depending on the browser version.)
- Go to Options or Preferences, depending on your operating system.
- Click on Privacy.
- In History, choose Use custom settings for history.
- You will now see the option Accept cookies, which you can enable or disable according to your preferences.
Safari (OSX)
(These steps may vary depending on the browser version.)
- Go to Preferences, then Privacy.
- You will see the option Block cookies, where you can adjust the type of blocking you want.
Safari (iOS)
(These steps may vary depending on the browser version.)
- Go to Settings, then Safari.
- Go to Privacy & Security, where you will see the option Block cookies to adjust the type of blocking you want.
Android
(These steps may vary depending on the browser version.)
- Open the browser and press the Menu key, then Settings.
- Go to Security & Privacy, where you will see the option Accept cookies to enable or disable it.
Windows Phone
(These steps may vary depending on the browser version.)
- Open Internet Explorer, then More, then Settings.
- You can now enable or disable the Allow cookies option.