Jürgen Müller

Just another mask! 
A very lightweight extension for the core/group gutenberg block. 
This adds an option, under the group blocks style tab, to add different top or bottom masks to a group block. 
You will love it. 🙂

Easy Mask

Boring straight lines? Add option to mask the core/group block with waves, slopes, spikes etc. A very lightweight extension for the core group block.

k0nsl

You can use this plugin to prevent your site from appearing in the server logs of referred pages as a referrer. The operators of the referred pages cannot see where their visitors originate from.
For example, this plugin will automatically convert all external links to this format http://anonymizer.mastrcoder.com/index.php?q=http://k0nsl.org/
This produces an anonymous link to k0nsl.org which prevents the original site from appearing as a referrer in the log files of the referred page. This will apply to all external links – except for the ones you decide to exclude.

mastrcoder anonymizer

Anonymize all your external links with the mastrcoder anonymizing service.

Easy Mask vs mastrcoder anonymizer