Web Standards
Where possible, Sandvox-produced webpages are fully compliant with the XHTML 1.0 Strict standard. Where not (for example the page contains non-XHTML Raw HTML), output is compliant XHTML Transitional or HTML 4.0.1.
Note that your host may well serve your site's pages as HTML rather than XHTML. This should not cause a problem with any known browsers.
Additionally, with Sandvox Pro, you can submit pages for validation by the W3C.
