Web sites can have programs {agent, Internet}| {intelligent agent, Internet} that aid selecting among choices, filling forms, or searching.
On HTTP servers, Perl or C++ programs and scripts can use interfaces {common gateway interface}| with common functions.
Web-site programs {search engine}| can look in indexed databases of stored web pages or other information to find logical matches to entered words or phrases.
Web-site programs {robot, Internet}| {spider, Internet} {crawler, Internet} {web crawler} {web wanderer} {wanderer, Internet} can automatically follow HREF referenced site links on web pages and download found web pages for indexing, validating HTML and/or links, noting what is new, or mirroring sites.
Robots {ant, Internet}| {web ant} on different web pages and servers can cooperate.
Web-page servers can place small files {cookie, Internet}| on client-computer hard disks, to note that client accessed web page. Cookie files contain unique identifiers, so server can track computer activity.
Web-page programs {web beacon}| can record number of times that computer accessed page or cookie.
Web sites, emails, or text messages can ask for private information {phishing}|, using pretexts.
Web-site programs {spyware}| can report user information to another web site.
Web-site programs {trojan horse, Internet}| can seem OK but have malicious code.
Web-site programs {worm, Internet}| can follow links on web pages and try to replicate on web-page servers.
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Description of Outline of Knowledge Database
Date Modified: 2022.0225