require title not to have too long text (long-title)

Search engines truncates titles with too long text, typically only displaying the first 60-70 characters. Possibly down-ranking the page in the process as it raises the suspicion of keyword stuffing.

See MDN recommendation and WCAG G88: Providing descriptive titles.

Rule details

Examples of incorrect code for this rule:

<head>
    <title>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</title>
</head>
error: title text cannot be longer than 70 characters (long-title) at inline:2:142:
  1 | <head>
> 2 |     <title>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</title>
    |                                                                                                                                              ^
  3 | </head>


1 error found.

Examples of correct code for this rule:

<head>
    <title>Lorem ipsum</title>
</head>

Options

This rule takes an optional object:

{
    "maxlength": 120
}

maxlength

Set a custom max length (inclusive).