<!DOCTYPE>）僅有一型：<!DOCTYPE HTML>。section, video, progress, nav, meter, time, aside, canvas, command, datalist, details, embed, figcaption, figure, footer, header,hgroup, keygen, mark, output, rp, rt, ruby, source, summary, wbr。input元素的新類型：date, email, url 等等。ping（用於a與area）, charset（用於meta）, async（用於script）。id, tabindex, repeat。contenteditable, contextmenu, draggable, dropzone, hidden, spellcheck。acronym, applet, basefont, big, center, dir, font, frame, frameset, isindex, noframes, strike, tt。
| FAE Rule | Violations | Message | Class |
|---|---|---|---|
| Warn | 1 | The words contained in each h1 element should match a subset of the words contained in the title element. Words (%1) in h1 elements should also be in the title element. | Title |
| Check | 1 | Heading content should be concise (usually 65 or fewer characters in length). | Headings |
| Fail | 1 | Every frame element must have a title attribute with content that describes the purpose of the frame. | Frames |
| Warn | 1 | Hidden or empty frames should not be used. | Frames |
| Warn | 1 | One level of nesting. Use CSS properties instead of tables and nested tables to visually layout blocks of related content for graphical renderings. | Tables |
| Fail | 1 | Two or more levels of nesting. Use CSS properties instead of tables and nested tables to visually layout blocks of related content for graphical renderings. | Tables |
| Warn | 1 | The character encoding was not specified. | W3C Specifications |
| Warn | 2 | Each map, ul or ol element that precedes the last h1 element and appears to be a navigation bar should be immediately preceded by a heading element, preferably an h2. | Menu and Navigation Bars |
| Fail | 3 | The font and center elements must not be used for text styling, instead use structural markup should be used with CSS for styling. | Text Styling |
| Warn | 4 | Ensure that links that point to the same HREF use the same link text. | Links |
| Fail | 6 | Each page must have a lang attribute on its html element whose value or initial subtag is a valid two-character language code. | Language Changes |
| Warn | 15 | Avoid using text links that are shorter than four 4 characters in length. | Links |
