News aggregator users." The rise of RSS began in the early 2000s when the New York Times implemented RSS: "One of the first, most popular sites that offered users the option to subscribe to RSS feeds was the New York Times, and the company’s implementation of the format was revered as the 'tipping point' that cemented RSS’s position as a de facto standard." "In 2005, major players in the web browser market started integrating the technology directly into their products, including Microsoft's Internet Explorer, Mozilla's Firefox and Apple's Safari." As of the end of 2015, according to BuiltWith.com there were 20,516,036 live
Quirks mode Web Consortium, which maintains the XHTML specification, suggests that authors of XHTML documents could consider omitting the XML declaration. Henri Sivonen compiled a list of various document types and how they are treated in the most common browsers, showing whether pages are rendered in Quirks, Standards, or Almost standards mode. The criterion used for "Almost standards mode" is non-standard table cell height rendering. This table applies to content served with the Content-Type text/html. Content served with the Content-Type application/xhtml+xml is rendered in Standards mode in Chrome, Firefox, Internet Explorer 9, Safari, and Opera. Internet Explorer 6, 7, and 8 do