Clean up the head
Remove the links, scripts and styles WordPress adds to every page that most sites never use.
- Remove the emoji script and styles Stops WordPress from loading its emoji script and styles on every page. Every current browser shows emoji on its own.
- Remove the RSD and Windows Live Writer links Removes two links from the page head that only old desktop blogging apps used.
- Remove the shortlink Removes the ?p=123 shortlink from the page head and the HTTP headers.
- Remove the REST API and oEmbed links Removes the REST API and oEmbed discovery links from the page head and the HTTP headers. The REST API itself keeps working.
- Remove the extra feed links Keeps the main posts and comments feeds in the page head, and removes the links to category, tag, author, search and per-post comment feeds.
- Stop loading jQuery Migrate jQuery Migrate helps very old jQuery code run. Most sites don’t need it on the public pages; the admin keeps it.
- Hide the WordPress version Removes the version number from the page head and feeds, and from the addresses of WordPress’s own scripts and styles.
Move your snippets over this afternoon.
Importing changes nothing until you switch over, and your old shortcodes keep working.