# SEO & Social Sharing Developer Documentation > Hooks documentation for SEO & Social Sharing This file contains links to documentation sections following the llmstxt.org standard. ## Table of Contents - [GravityView_Extension](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_extension): Extend this class to create a GravityView extension that gets updates from gravitykit.com - [GravityView_Sharing_Jetpack](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_sharing_jetpack): Add support for the Jetpack Sharing plugin - [GravityView_Sharing_Service](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_sharing_service): **Source:** `includes/class-sharing-service.php:3` - [GravityView_Sharing_WordPress](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_sharing_wordpress): Add support for sharing content using WordPress social icons - [GravityView_Social_Meta](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_social_meta): Integrate with the WordPress SEO plugin - [GravityView_Social_Register_Field](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes/gravityview_social_register_field): Handle registering the `social` field in GravityView - [SEO & Social Sharing Classes](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/classes): - [`GravityView_Extension`](./gravityview_extension) — Extend this class to create a GravityView extension that gets updates from gravitykit.com - [gravityview_social_get_permalink](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/functions/gravityview_social_get_permalink): `function gravityview_social_get_permalink( $post_link, $passed_post=NULL, $leavename=false, $sample=false )` - [gravityview_social_get_title](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/functions/gravityview_social_get_title): `function gravityview_social_get_title( $previous_title, $post_id=0, $view=null )` - [gv_extension_sharing_load](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/functions/gv_extension_sharing_load): `function gv_extension_sharing_load()` - [SEO & Social Sharing Functions](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api/functions): - [`gravityview_social_get_permalink`](./gravityview_social_get_permalink) — Filter the permalink for a post with a custom post type. - [SEO & Social Sharing API Reference](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/api): Generated from PHP source and PHPDoc comments. - [Filter - gravityview_sharing_services](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/filters/gravityview_sharing_services): Register your own sharing service. - [Filter - gravityview_social/sharing_field_options](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/filters/gravityview_social-sharing_field_options): Customize sharing field settings - [Filter - gravityview_social/wordpress_social_services](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/filters/gravityview_social-wordpress_social_services): Customize available WP social services. - [Filters](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo/filters): SEO & Social Sharing filters - [SEO & Social Sharing Developer Documentation](https://www.gravitykit.dev/docs/gravityview-social-sharing-seo): Developer documentation for SEO & Social Sharing including hooks, actions, filters, and PHP API reference