Audit rules

Deprecated HTML Tags

The page uses obsolete HTML elements such as <center>, <font> or <marquee>. In a QuikSEO audit, a failure of this rule has info severity and counts against the score. Below are the exact condition, its exceptions and the sources behind it, followed by the other rules of the same group.

01 — Definition

How This Rule Is Checked

The rule is a pure function of the fetched page: no extra requests, no account settings. The same input always gives the same result.

Rule Severity and Score

Rule id: document.deprecated_tags
Group: Document
Severity of a failure: Info
Counts in the score: Yes, whenever it applies to the page
Required for a score: No
Replaces the check: deprecated_html_tags

Condition and Exceptions

Condition: Any of: acronym, applet, basefont, big, blink, center, dir, font, frame, frameset, isindex, marquee, noframes, plaintext, strike, tt, xmp → fail (info) with tag counts
Exceptions: —

Sources

Sources: HTML Standard, 16.2 Non-conforming features (WHATWG, Q52)

02 — Document

Other Rules in This Group

The other checks of the same group, each with its own condition and sources.

Character Encoding Declarationdocument.charset
Doctypedocument.doctype
Favicondocument.favicon
Inline CSSdocument.inline_css
HTML Language Attributedocument.lang
Meta Keywordsdocument.meta_keywords
Meta Refreshdocument.meta_refresh
Meta Viewportdocument.viewport