Valid doctype declarations
Total Validator currently recognises the following DOCTYPEs in order to determine the HTML validation to apply to web pages. This should normally be the first tag in your HTML page, Note that these are all case sensitive:
XHTML 1.1:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
XHTML 1.0 Strict:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
XHTML 1.0 Loose:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
XHTML 1.0 Frameset:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
HTML 4.01 Strict:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
HTML 4.01 Loose:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
HTML 4.01 Frameset:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/frameset.dtd">
HTML 4.0 Strict:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
HTML 4.0 Loose:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
HTML 4.0 Frameset:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN" "http://www.w3.org/TR/REC-html40/frameset.dtd">
HTML 3.2:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
HTML 3.2 (alternative):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
HTML 3.2 (alternative):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Draft//EN">
HTML 2.0:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
HTML 2.0 (alternative):
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
ISO/IEC 15445:
<!DOCTYPE html PUBLIC "ISO/IEC 15445:2000//DTD HTML//EN">
ISO/IEC 15445 (alternative):
<!DOCTYPE html PUBLIC "ISO/IEC 15445:2000//DTD HyperText Markup Language//EN">
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