Unicode
UTF-8 is the dominant encoding for the World Wide Web (and internet technologies), accounting for 98% of all web pages, and up to 100.0% for some languages, as of 2022, uses one byte (8 bits) for the first 128 code points, and up to 4 bytes for other characters. The first 128 Unicode code points represent the ASCII characters, which means that any ASCII text is also a UTF-8 text.