Fix Old Subsite URLs After Domain Mapping
Rewrites links and image URLs that still point at a site's old network address (like example.com/shop/) to its mapped domain when content is displayed.
Snippet Library
Multisite snippets for WordPress
Snippets for WordPress Multisite networks: network-wide settings, new site defaults, super admin tools and cross-site tweaks. For network administrators who manage many sites from one install.
Remove Sample Content From New Network Sites
Deletes the "Hello world!" post, its sample comment and the "Sample Page" from each newly created site so site owners start with a clean slate.