The attribute itself is meant to supply optional supplementary information. The most beneficial example is in conjunction with the abbr element, providing the knowing user with an expansion of an abbreviation. A second practical example is using it with forms to provide additional relevant information. (We also looked at using titles with form fields.)

But there are many examples of a title attribute being used to provide the same information that’s already available and accessible. The most common example is links, especially in navigation you see the following piece of markup:

<a href="/sitemap/" title="Visit our sitemap">Sitemap</a>

Here the title attribute is just a plain duplication of the link text. Sure, it may have two extra words of Visit our which don’t appear elsewhere, but this explains what a link does, and is just as redundant and irrelevant to site visitors. Most of them would need to have understood what a hypertext link is and what it does before even arriving at your site. Its just not necessary.

The extra text is a variant of the click here problem, it explains about how to activate a text link rather than succinctly describing the destination.

Some users have their screenreaders configured to read out both the link text and the title attribute. In this case, the above link would read out “Sitemap visit our sitemap”, and either prefix that with the word “Link”, or switch to a different voice to indicate the presence of a link. The duplication slows down the reading of the page, and is an unnecessary hiccup.

There is very little benefit to the title attribute in this code example. It is better, accessibility wise, to just drop the title attribute altogether in this instance.

Creating barriers for screen magnifiers

Screen magnifiers have the tendancy to make all title attributes appear when they have a titled element within the view of the magnifier. Any title, be it on a div, or a header, or a paragraph or a link, will appear in a tooltip like fashion. A significant use of titles may distract a screen magnifier user, even prevent them from seeing a particular piece of content because it has been obstructed by a tooltip.

There’s just no positive accessibility benefit to using a title attribute to duplicate existing content. The title attribute. when it offers no extra value, hinders more than it helps.