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Jargon Buster

Website and marketing terms beginning with X

5 plain-English definitions, from X-Content-Type-Options to XZ. Terms with a link have a full explanation with a Jersey example. To search every term, go back to the Jargon Buster.

  • Security & legal

    X-Content-Type-Options

    X-Content-Type-Options is a response header that tells a supporting browser to respect the declared content type rather than infer another type through MIME sniffing. Its nosniff handling includes checks for scripts and styles. The server must still supply appropriate content types, and this header is only one part of secure resource handling.

    Also called: nosniff

  • SEO

    X-Robots-Tag

    X-Robots-Tag is an HTTP response header that can carry supported crawler directives, including for resources that are not HTML pages. Review the actual served header and intended outcome. Blocking the request can prevent a crawler from reading the directive, and these rules do not provide private access control.

  • Websites & hosting

    XML

    XML, or Extensible Markup Language, represents structured information using elements and attributes. It appears in formats such as XML sitemaps and some system exchanges. A Jersey business should identify the particular format and receiving requirements, because well-formed XML alone does not establish that the data is correct or a requested action succeeded.

    Also called: Extensible Markup Language

  • Design & content

    XMLSerializer

    XMLSerializer constructs an XML string representing a DOM tree through its serialization method. The resulting string is not guaranteed to be well-formed XML. Review the output and receiving requirements separately, so a successful serialization operation is not expanded into proof that another service accepted the document or its business information is correct.

  • Websites & hosting

    XZ

    XZ is a compressed-stream container format. Its format documentation distinguishes it from an archiving format: it does not package multiple named files and their directory structure on its own. Document any separate archive layer and required receiving tools so the business can recover the intended files from the complete delivered package.

    Also called: xz compression

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