Pierre Prinetti

Set your anchor name in the options page.
Typical use case: a big picture in the header you don’t want people 
to be bothered with every time they click on an internal link. But 
you still want that beautiful picture to be there.
Feel free to contribute: 
github.com/pierreprinetti/wp-permamod

wp-permamod

Very simple plugin that adds an anchor to page and post permalinks, which can point to an existant anchor in your template.

wildoperation

Enables the confirmation anchor functionality for all Gravity Forms on your site. This is done using the gform_confirmation_anchor filter.
This plugin has no settings. Just enable the plugin. The confirmation anchor will be enabled on all Gravity Forms.
For information on Gravity Forms anchors, or to learn how to enable the anchor only for specific forms, please review Gravity Forms’ official documentation.

Enable Gravity Forms Confirmation Anchor

Enables the confirmation anchor functionality for all Gravity Forms on your site.

wp-permamod vs Enable Gravity Forms Confirmation Anchor