Browsers appear to treat the charset 'ASCII' and missing charsets the same. This behavior is now required by the HTML5 specification. Most modern web browsers and e-mail clients treat the media type charset ISO-8859-1 as Windows-1252 to accommodate such mislabeling.

A result was that all the quotes and apostrophes (produced by 'smart quotes') were replaced with question marks or boxes when viewed on non-Windows operating systems. It is known to Windows by the code page number 1252, and by the IANA-approved name 'windows-1252'.Īt one stage many Microsoft internet products produced text in Windows-1252 but marked as ISO-8859-1. Notable additional characters include curly quotation marks and all printable characters from ISO 8859-15. This character encoding is a superset of ISO 8859-1 in terms of printable characters, but differs from the IANA's ISO-8859-1 by adding additional characters in the 80 to 9F ( hex) range (the ISO standards reserve this range for control characters). Windows-1252 is often assumed to be the encoding of text in operating systems, in particular on Microsoft Windows this is only gradually being changed to UTF-8. ĭepending on the country or language, use can be much higher than the global average, e.g., for Brazil website use is at 9.2%, and in Germany at 3.9% (these are the sums of ISO-8859-1 and CP1252 declarations). Pages declared as ASCII, or a missing or invalid charset, are also assumed to be Windows-1252 by browsers. As of January 2023, 1.4% of all web sites declare ISO 8859-1 which is treated as Windows-1252 by all modern browsers (as demanded by the HTML5 standard ), plus 0.3% of all websites declared use of Windows-1252, for a total of 1.7% (and only 16 of the top 1000 websites ). It is the most-used single-byte character encoding in the world. Windows (and most other operating systems) now uses Unicode character sets by default. This character-encoding scheme is used throughout the Americas, Western Europe, Oceania, and much of Africa. ( legacy components of) Microsoft Windows for English and many (European) languages including Spanish, Portuguese, French, and German (missing uppercase ẞ). Windows-1252 or CP-1252 ( code page 1252) is a single-byte character encoding of the Latin alphabet (or superset of), that was used by default in e.g.

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