Professional Web glossary

Definitions beginning with X

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Definitions beginning with X

Search within this letter or use the alphabet to continue exploring the complete glossary.

5 terms displayed

SEO, search and visibility #

X-Robots-Tag

HTTP header conveying indexing directives for a response, including non-HTML files.

Also searched as : robots http header
Development and code #

XHTML

Formulation of HTML under strict XML syntax rules, now less common on the general Web.

Also searched as : extensible html
Development and code #

XML

Extensible markup language used to structure and exchange data, notably in sitemaps and some feeds.

Also searched as : extensible markup language
Development and code #

XPath

Language used to select nodes and values in an XML document or compatible tree representation.

Also searched as : xml path
Security and privacy #

XSS

Cross-Site Scripting: vulnerability allowing code to be injected and executed in other users’ browsers.

Also searched as : cross site scripting
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Editorial method

Definitions written for people, structured for machines.

The entries are editorially reformulated in plain language, connected to stable URLs and represented with DefinedTerm structured data. They provide orientation, not a substitute for official standards, legal advice or vendor documentation.