How to disable Safari Reader in a web page

“You need at least one <h*> element” — this is simply incorrect. Here’s an example: http://mathiasbynens.be/demo/safari-reader-test-3

My answer on the other Safari Reader question provides some more info.

You could also read my blog post on enabling Safari Reader for all my findings on the subject.

Adding markup to potentially "readable" tags, like p and div, can cause the Readability algorithm to ignore the tag, thus lowering the score, hopefully to a point that it doesn't trigger the Reader icon to display.

Looking at the Readability source, one area to do this is in the id and class attributes, as it does pattern matching on the combined data from these two attributes. For example, adding a "comment" class, like so

<p class="myClass comment">...</p>

will cause that element to be ignored. The pattern that is being matched for "unlikely" candidates is:

/combx|comment|disqus|foot|header|menu|rss|shoutbox|sidebar|sponsor/i

Placing flags on the elements that might add to the Readability Score can allow you to disable the Reader icon.