Scrubs notorious WordPress front-end output. Include it in your theme if you like.

Adds theme support for 'title-tag', as required by WP.org, and enables HTML5 output for core WordPress markup.

It also redirects attachment pages to their parent posts (if any), since those tend to be comment spam magnets.

But mostly, it removes…

• <meta name="generator">, the RSS <generator>, other WP-advertising

• The X-Pingback header

• The Rest API <link> and HTTP header

• <script src='https://example.com/wp-includes/js/wp-embed.min.js'>

• The WP_EMOJI scripts and styles, and their corresponding <link rel='dns-prefetch' href='//s.w.org' />"

• <link rel="EditURI">, <link rel="wlwmanifest">, <link rel="shortlink"> (and its HTTP header), and <link rel="index">

• capital_P_dangit

As much as the type="text/javascript" and type="text/css" attributes bother me too, scrubbing them isn’t simple, and a little more resource-hungry than I’m comfortable with. If you want your HTML lean, try a real minifier like Autoptimize instead.

It also doesn't remove the extra feeds. I use those ᐛ