HTTP cookies are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser.
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20 Facts About HTTP cookies
2.
Authentication HTTP cookies are commonly used by web servers to authenticate that a user is logged in, and with which account they are logged in.
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3.
Magic HTTP cookies were already used in computing when computer programmer Lou Montulli had the idea of using them in web communications in June 1994.
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4.
The first use of HTTP cookies was checking whether visitors to the Netscape website had already visited the site.
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5.
Support for HTTP cookies was integrated with Internet Explorer in version 2, released in October 1995.
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6.
In particular, HTTP cookies were accepted by default, and users were not notified of their presence.
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7.
Two alternative proposals for introducing state in HTTP cookies transactions had been proposed by Brian Behlendorf and David Kristol respectively.
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8.
RFC 2965 added a Set-Cookie2 header field, which informally came to be called "RFC 2965-style HTTP cookies" as opposed to the original Set-Cookie header field which was called "Netscape-style HTTP cookies".
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9.
Session HTTP cookies are identified by the browser by the absence of an expiration date assigned to them.
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10.
Persistent HTTP cookies are used for reasons such as keeping users logged into their accounts on websites, to avoid re-entering login credentials at every visit.
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11.
SuperHTTP cookies can be a potential security concern and are therefore often blocked by web browsers.
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12.
Session HTTP cookies only contain a unique session identifier, this makes the amount of personal information that a website can save about each user virtually limitless—the website is not limited to restrictions concerning how large a cookie can be.
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13.
Session HTTP cookies help to improve page load times, since the amount of information in a session cookie is small and requires little bandwidth.
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14.
The Google search engine once used HTTP cookies to allow users to decide how many search results per page they wanted to see.
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15.
Also, DuckDuckGo uses HTTP cookies to allow users to set the viewing preferences like colors of the web page.
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16.
Server's HTTP cookies response contains the contents of the website's homepage.
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17.
Session HTTP cookies are intended to be deleted by the browser when the browser closes.
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18.
Third-party HTTP cookies can be blocked by most browsers to increase privacy and reduce tracking by advertising and tracking companies without negatively affecting the user's web experience on all sites.
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19.
Likewise, HTTP cookies do not differentiate between multiple users who share the same user account, computer, and browser.
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20.
HTTP cookies protocol includes the basic access authentication and the digest access authentication protocols, which allow access to a web page only when the user has provided the correct username and password.
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