Clarified maximum webhooks

Maximum webhooks were implemented on GitLab.com. This MR
describes the current webhook limits, and links to the
documented limits from the various references.

doc/administration/instance_limits.md

@@ -37,23 +37,9 @@ Activity history for projects and individuals' profiles was limited to one year
 
 ## Number of webhooks
 
-A maximum number of webhooks applies to each GitLab.com tier. Limits apply to project and group webhooks.
+On GitLab.com, the [maximum number of webhooks](../user/gitlab_com/index.md#maximum-number-of-webhooks) per project, and per group, is limited.
 
-### Project Webhooks
-
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/20730) in GitLab 12.6.
-
-Check the [Maximum number of project webhooks (per tier)](../user/project/integrations/webhooks.md#maximum-number-of-project-webhooks-per-tier) section in the Webhooks page.
-
-### Group Webhooks
-
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25129) in GitLab 12.9.
-
-Check the [Maximum number of group webhooks (per tier)](../user/project/integrations/webhooks.md#maximum-number-of-group-webhooks-per-tier) section in the Webhooks page.
-
-### Setting the limit on a self-hosted installation
-
-To set this limit on a self-hosted installation, run the following in the
+To set this limit on a self-managed installation, run the following in the
 [GitLab Rails console](https://docs.gitlab.com/omnibus/maintenance/#starting-a-rails-console-session):
 
 ```ruby

doc/security/webhooks.md

@@ -4,6 +4,9 @@ type: concepts, reference, howto
 
 # Webhooks and insecure internal web services
 
+NOTE: **Note:**
+On GitLab.com the [maximum number of webhooks](../user/gitlab_com/index.md#maximum-number-of-webhooks) per project is limited.
+
 If you have non-GitLab web services running on your GitLab server or within its
 local network, these may be vulnerable to exploitation via Webhooks.
 

doc/user/gitlab_com/index.md

@@ -94,6 +94,13 @@ IP based firewall can be configured by looking up all
 
 [Static endpoints](https://gitlab.com/groups/gitlab-com/gl-infra/-/epics/97) are being considered.
 
+## Maximum number of webhooks
+
+A limit of:
+
+- 100 webhooks applies to projects.
+- 50 webhooks applies to groups. **(BRONZE ONLY)**
+
 ## Shared Runners
 
 GitLab offers Linux and Windows shared runners hosted on GitLab.com for executing your pipelines.

doc/user/project/integrations/webhooks.md

@@ -47,33 +47,8 @@ and **per project and per group** for **GitLab Enterprise Edition**.
 Navigate to the webhooks page by going to your project's
 **Settings ➔ Webhooks**.
 
-## Maximum number of project webhooks (per tier)
-
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/20730) in GitLab 12.6.
-
-A maximum number of project webhooks applies to each [GitLab.com
-tier](https://about.gitlab.com/pricing/), as shown in the following table:
-
-| Tier     | Number of webhooks per project |
-|----------|--------------------------------|
-| Free     | 100                            |
-| Bronze   | 100                            |
-| Silver   | 100                            |
-| Gold     | 100                            |
-
-## Maximum number of group webhooks (per tier)
-
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/25129) in GitLab 12.9.
-
-A maximum number of group webhooks applies to each [GitLab.com
-tier](https://about.gitlab.com/pricing/), as shown in the following table:
-
-| Tier     | Number of webhooks per group   |
-|----------|--------------------------------|
-| Free     | feature not available          |
-| Bronze   | 50                             |
-| Silver   | 50                             |
-| Gold     | 50                             |
+NOTE: **Note:**
+On GitLab.com, the [maximum number of webhooks](../../../user/gitlab_com/index.md#maximum-number-of-webhooks) per project, and per group, is limited.
 
 ## Use-cases