The W3C Markup Validation Service #adessonewsitalia
Validate by URI
Validate a document online:
Address:
| Character Encoding | (detect automatically) utf-8 (Unicode, worldwide) utf-16 (Unicode, worldwide) iso-8859-1 (Western Europe) iso-8859-2 (Central Europe) iso-8859-3 (Southern Europe) iso-8859-4 (North European) iso-8859-5 (Cyrillic) iso-8859-6-i (Arabic) iso-8859-7 (Greek) iso-8859-8 (Hebrew, visual) iso-8859-8-i (Hebrew, logical) iso-8859-9 (Turkish) iso-8859-10 (Latin 6) iso-8859-11 (Latin/Thai) iso-8859-13 (Latin 7, Baltic Rim) iso-8859-14 (Latin 8, Celtic) iso-8859-15 (Latin 9) iso-8859-16 (Latin 10) us-ascii (basic English) euc-jp (Japanese, Unix) shift_jis (Japanese, Win/Mac) iso-2022-jp (Japanese, email) euc-kr (Korean) ksc_5601 (Korean) gb2312 (Chinese, simplified) gb18030 (Chinese, simplified) big5 (Chinese, traditional) Big5-HKSCS (Chinese, Hong Kong) tis-620 (Thai) koi8-r (Russian) koi8-u (Ukrainian) iso-ir-111 (Cyrillic KOI-8) macintosh (MacRoman) windows-1250 (Central Europe) windows-1251 (Cyrillic) windows-1252 (Western Europe) windows-1253 (Greek) windows-1254 (Turkish) windows-1255 (Hebrew) windows-1256 (Arabic) windows-1257 (Baltic Rim) | Only if missing |
|---|---|---|
| Document Type | (detect automatically) HTML5 (experimental) XHTML 1.0 Strict XHTML 1.0 Transitional XHTML 1.0 Frameset HTML 4.01 Strict HTML 4.01 Transitional HTML 4.01 Frameset HTML 4.01 + RDFa 1.1 HTML 3.2 HTML 2.0 ISO/IEC 15445:2000 (“ISO HTML”) XHTML 1.1 XHTML + RDFa XHTML Basic 1.0 XHTML Basic 1.1 XHTML Mobile Profile 1.2 XHTML-Print 1.0 XHTML 1.1 plus MathML 2.0 XHTML 1.1 plus MathML 2.0 plus SVG 1.1 MathML 2.0 SVG 1.0 SVG 1.1 SVG 1.1 Tiny SVG 1.1 Basic SMIL 1.0 SMIL 2.0 | Only if missing |
| List Messages Sequentially Group Error Messages by Type | ||
| Show Source | Clean up Markup with HTML-Tidy | |
| Show Outline | Validate error pages | Verbose Output |
Validate by File Upload
Upload a document for validation:
File:
| Character Encoding | (detect automatically) utf-8 (Unicode, worldwide) utf-16 (Unicode, worldwide) iso-8859-1 (Western Europe) iso-8859-2 (Central Europe) iso-8859-3 (Southern Europe) iso-8859-4 (North European) iso-8859-5 (Cyrillic) iso-8859-6-i (Arabic) iso-8859-7 (Greek) iso-8859-8 (Hebrew, visual) iso-8859-8-i (Hebrew, logical) iso-8859-9 (Turkish) iso-8859-10 (Latin 6) iso-8859-11 (Latin/Thai) iso-8859-13 (Latin 7, Baltic Rim) iso-8859-14 (Latin 8, Celtic) iso-8859-15 (Latin 9) iso-8859-16 (Latin 10) us-ascii (basic English) euc-jp (Japanese, Unix) shift_jis (Japanese, Win/Mac) iso-2022-jp (Japanese, email) euc-kr (Korean) ksc_5601 (Korean) gb2312 (Chinese, simplified) gb18030 (Chinese, simplified) big5 (Chinese, traditional) Big5-HKSCS (Chinese, Hong Kong) tis-620 (Thai) koi8-r (Russian) koi8-u (Ukrainian) iso-ir-111 (Cyrillic KOI-8) macintosh (MacRoman) windows-1250 (Central Europe) windows-1251 (Cyrillic) windows-1252 (Western Europe) windows-1253 (Greek) windows-1254 (Turkish) windows-1255 (Hebrew) windows-1256 (Arabic) windows-1257 (Baltic Rim) | Only if missing |
|---|---|---|
| Document Type | (detect automatically) HTML5 (experimental) XHTML 1.0 Strict XHTML 1.0 Transitional XHTML 1.0 Frameset HTML 4.01 Strict HTML 4.01 Transitional HTML 4.01 Frameset HTML 4.01 + RDFa 1.1 HTML 3.2 HTML 2.0 ISO/IEC 15445:2000 (“ISO HTML”) XHTML 1.1 XHTML + RDFa XHTML Basic 1.0 XHTML Basic 1.1 XHTML Mobile Profile 1.2 XHTML-Print 1.0 XHTML 1.1 plus MathML 2.0 XHTML 1.1 plus MathML 2.0 plus SVG 1.1 MathML 2.0 SVG 1.0 SVG 1.1 SVG 1.1 Tiny SVG 1.1 Basic SMIL 1.0 SMIL 2.0 | Only if missing |
| List Messages Sequentially Group Error Messages by Type | ||
| Show Source | Clean up Markup with HTML-Tidy | |
| Show Outline | Validate error pages | Verbose Output |
Note: file upload may not work with Internet Explorer on some versions of Windows XP Service Pack 2, see our information page on the W3C QA Website.
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“https://validator.w3.org/”
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