diff --git a/content/rest/reference/permissions-required-for-github-apps.md b/content/rest/reference/permissions-required-for-github-apps.md
index 9f6a813ca7..2a93b8d2ce 100644
--- a/content/rest/reference/permissions-required-for-github-apps.md
+++ b/content/rest/reference/permissions-required-for-github-apps.md
@@ -160,6 +160,9 @@ _Search_
 {% if currentVersion == "free-pro-team@latest" %}
 - [`DELETE /repos/:owner/:repo/interaction-limits`](/rest/reference/interactions#remove-interaction-restrictions-for-a-repository) (:write)
 {% endif %}
+{% if currentVersion == "free-pro-team@latest" %}
+- [`GET /repos/:owner/:repo/pages/health`](/rest/reference/repos#get-a-dns-health-check-for-github-pages) (:write)
+{% endif %}
 - [`PUT /repos/:owner/:repo/topics`](/rest/reference/repos#replace-all-repository-topics) (:write)
 - [`POST /repos/:owner/:repo/transfer`](/rest/reference/repos#transfer-a-repository) (:write)
 {% if currentVersion == "free-pro-team@latest" %}
@@ -678,6 +681,9 @@ _Teams_
 - [`POST /repos/:owner/:repo/pages/builds`](/rest/reference/repos#request-a-github-pages-build) (:write)
 - [`GET /repos/:owner/:repo/pages/builds/:build_id`](/rest/reference/repos#get-github-pages-build) (:read)
 - [`GET /repos/:owner/:repo/pages/builds/latest`](/rest/reference/repos#get-latest-pages-build) (:read)
+{% if currentVersion == "free-pro-team@latest" %}
+- [`GET /repos/:owner/:repo/pages/health`](/rest/reference/repos#get-a-dns-health-check-for-github-pages) (:write)
+{% endif %}
 
 ### Permission on "pull requests"
 
diff --git a/lib/rest/static/decorated/api.github.com.json b/lib/rest/static/decorated/api.github.com.json
index 3fd6794fdc..ab325a9085 100644
--- a/lib/rest/static/decorated/api.github.com.json
+++ b/lib/rest/static/decorated/api.github.com.json
@@ -66563,6 +66563,95 @@
       }
     ]
   },
+  {
+    "verb": "get",
+    "requestPath": "/repos/{owner}/{repo}/pages/health",
+    "serverUrl": "https://api.github.com",
+    "parameters": [
+      {
+        "name": "owner",
+        "in": "path",
+        "required": true,
+        "schema": {
+          "type": "string"
+        },
+        "descriptionHTML": ""
+      },
+      {
+        "name": "repo",
+        "in": "path",
+        "required": true,
+        "schema": {
+          "type": "string"
+        },
+        "descriptionHTML": ""
+      }
+    ],
+    "x-codeSamples": [
+      {
+        "lang": "Shell",
+        "source": "curl \\\n  -H \"Accept: application/vnd.github.v3+json\" \\\n  https://api.github.com/repos/octocat/hello-world/pages/health",
+        "html": "<pre><code class=\"hljs language-shell\">curl \\\n  -H \"Accept: application/vnd.github.v3+json\" \\\n  https://api.github.com/repos/octocat/hello-world/pages/health</code></pre>"
+      },
+      {
+        "lang": "JavaScript",
+        "source": "await octokit.request('GET /repos/{owner}/{repo}/pages/health', {\n  owner: 'octocat',\n  repo: 'hello-world'\n})",
+        "html": "<pre><code class=\"hljs language-javascript\"><span class=\"hljs-keyword\">await</span> octokit.request(<span class=\"hljs-string\">'GET /repos/{owner}/{repo}/pages/health'</span>, {\n  <span class=\"hljs-attr\">owner</span>: <span class=\"hljs-string\">'octocat'</span>,\n  <span class=\"hljs-attr\">repo</span>: <span class=\"hljs-string\">'hello-world'</span>\n})\n</code></pre>"
+      }
+    ],
+    "summary": "Get a DNS health check for GitHub Pages",
+    "description": "Gets a health check of the DNS settings for the `CNAME` record configured for a repository's GitHub Pages.\n\nThe first request to this endpoint returns a `202 Accepted` status and starts an asynchronous background task to get the results for the domain. After the background task completes, subsequent requests to this endpoint return a `200 OK` status with the health check results in the response.\n\nUsers must have admin or owner permissions. GitHub Apps must have the `pages:write` and `administration:write` permission to use this endpoint.",
+    "tags": [
+      "repos"
+    ],
+    "operationId": "repos/get-pages-health-check",
+    "externalDocs": {
+      "description": "API method documentation",
+      "url": "https://docs.github.com/rest/reference/repos#get-a-dns-health-check-for-github-pages"
+    },
+    "x-github": {
+      "githubCloudOnly": false,
+      "enabledForGitHubApps": true,
+      "category": "repos",
+      "subcategory": "pages"
+    },
+    "slug": "get-a-dns-health-check-for-github-pages",
+    "category": "repos",
+    "categoryLabel": "Repos",
+    "subcategory": "pages",
+    "subcategoryLabel": "Pages",
+    "notes": [],
+    "bodyParameters": [],
+    "descriptionHTML": "<p>Gets a health check of the DNS settings for the <code>CNAME</code> record configured for a repository's GitHub Pages.</p>\n<p>The first request to this endpoint returns a <code>202 Accepted</code> status and starts an asynchronous background task to get the results for the domain. After the background task completes, subsequent requests to this endpoint return a <code>200 OK</code> status with the health check results in the response.</p>\n<p>Users must have admin or owner permissions. GitHub Apps must have the <code>pages:write</code> and <code>administration:write</code> permission to use this endpoint.</p>",
+    "responses": [
+      {
+        "httpStatusCode": "200",
+        "httpStatusMessage": "OK",
+        "description": "Response",
+        "payload": "<pre><code class=\"hljs language-json\">{\n  <span class=\"hljs-attr\">\"domain\"</span>: {\n    <span class=\"hljs-attr\">\"host\"</span>: <span class=\"hljs-string\">\"example.com\"</span>,\n    <span class=\"hljs-attr\">\"uri\"</span>: <span class=\"hljs-string\">\"http://example.com/\"</span>,\n    <span class=\"hljs-attr\">\"nameservers\"</span>: <span class=\"hljs-string\">\"default\"</span>,\n    <span class=\"hljs-attr\">\"dns_resolves\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_proxied\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cloudflare_ip\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_fastly_ip\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_old_ip_address\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_a_record\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"has_cname_record\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"has_mx_records_present\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_valid_domain\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_apex_domain\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"should_be_a_record\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_github_user_domain\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_pages_dot_github_dot_com\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_fastly\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_pointed_to_github_pages_ip\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_non_github_pages_ip_present\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_pages_domain\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_served_by_pages\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_valid\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"reason\"</span>: <span class=\"hljs-literal\">null</span>,\n    <span class=\"hljs-attr\">\"responds_to_https\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"enforces_https\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"https_error\"</span>: <span class=\"hljs-literal\">null</span>,\n    <span class=\"hljs-attr\">\"is_https_eligible\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"caa_error\"</span>: <span class=\"hljs-literal\">null</span>\n  },\n  <span class=\"hljs-attr\">\"alt_domain\"</span>: {\n    <span class=\"hljs-attr\">\"host\"</span>: <span class=\"hljs-string\">\"www.example.com\"</span>,\n    <span class=\"hljs-attr\">\"uri\"</span>: <span class=\"hljs-string\">\"http://www.example.com/\"</span>,\n    <span class=\"hljs-attr\">\"nameservers\"</span>: <span class=\"hljs-string\">\"default\"</span>,\n    <span class=\"hljs-attr\">\"dns_resolves\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_proxied\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cloudflare_ip\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_fastly_ip\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_old_ip_address\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_a_record\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"has_cname_record\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"has_mx_records_present\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_valid_domain\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_apex_domain\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"should_be_a_record\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_github_user_domain\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_pages_dot_github_dot_com\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_cname_to_fastly\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_pointed_to_github_pages_ip\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_non_github_pages_ip_present\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_pages_domain\"</span>: <span class=\"hljs-literal\">false</span>,\n    <span class=\"hljs-attr\">\"is_served_by_pages\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"is_valid\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"reason\"</span>: <span class=\"hljs-literal\">null</span>,\n    <span class=\"hljs-attr\">\"responds_to_https\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"enforces_https\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"https_error\"</span>: <span class=\"hljs-literal\">null</span>,\n    <span class=\"hljs-attr\">\"is_https_eligible\"</span>: <span class=\"hljs-literal\">true</span>,\n    <span class=\"hljs-attr\">\"caa_error\"</span>: <span class=\"hljs-literal\">null</span>\n  }\n}\n</code></pre>"
+      },
+      {
+        "httpStatusCode": "202",
+        "httpStatusMessage": "Accepted",
+        "description": "Empty response"
+      },
+      {
+        "httpStatusCode": "400",
+        "httpStatusMessage": "Bad Request",
+        "description": "Custom domains are not available for GitHub Pages"
+      },
+      {
+        "httpStatusCode": "404",
+        "httpStatusMessage": "Not Found",
+        "description": "Resource not found"
+      },
+      {
+        "httpStatusCode": "422",
+        "httpStatusMessage": "Unprocessable Entity",
+        "description": "There isn't a CNAME for this page"
+      }
+    ]
+  },
   {
     "verb": "get",
     "requestPath": "/repos/{owner}/{repo}/projects",
diff --git a/lib/rest/static/dereferenced/api.github.com.deref.json b/lib/rest/static/dereferenced/api.github.com.deref.json
index 83eaa47098..c8e17ff4df 100644
--- a/lib/rest/static/dereferenced/api.github.com.deref.json
+++ b/lib/rest/static/dereferenced/api.github.com.deref.json
@@ -253294,6 +253294,376 @@
         }
       }
     },
+    "/repos/{owner}/{repo}/pages/health": {
+      "get": {
+        "summary": "Get a DNS health check for GitHub Pages",
+        "description": "Gets a health check of the DNS settings for the `CNAME` record configured for a repository's GitHub Pages.\n\nThe first request to this endpoint returns a `202 Accepted` status and starts an asynchronous background task to get the results for the domain. After the background task completes, subsequent requests to this endpoint return a `200 OK` status with the health check results in the response.\n\nUsers must have admin or owner permissions. GitHub Apps must have the `pages:write` and `administration:write` permission to use this endpoint.",
+        "tags": [
+          "repos"
+        ],
+        "operationId": "repos/get-pages-health-check",
+        "externalDocs": {
+          "description": "API method documentation",
+          "url": "https://docs.github.com/rest/reference/repos#get-a-dns-health-check-for-github-pages"
+        },
+        "parameters": [
+          {
+            "name": "owner",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          },
+          {
+            "name": "repo",
+            "in": "path",
+            "required": true,
+            "schema": {
+              "type": "string"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Response",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "title": "Pages Health Check Status",
+                  "description": "Pages Health Check Status",
+                  "type": "object",
+                  "properties": {
+                    "domain": {
+                      "type": "object",
+                      "properties": {
+                        "host": {
+                          "type": "string"
+                        },
+                        "uri": {
+                          "type": "string"
+                        },
+                        "nameservers": {
+                          "type": "string"
+                        },
+                        "dns_resolves": {
+                          "type": "boolean"
+                        },
+                        "is_proxied": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cloudflare_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_fastly_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_old_ip_address": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_a_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "has_cname_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "has_mx_records_present": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_valid_domain": {
+                          "type": "boolean"
+                        },
+                        "is_apex_domain": {
+                          "type": "boolean"
+                        },
+                        "should_be_a_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_github_user_domain": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_pages_dot_github_dot_com": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_fastly": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_pointed_to_github_pages_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_non_github_pages_ip_present": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_pages_domain": {
+                          "type": "boolean"
+                        },
+                        "is_served_by_pages": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_valid": {
+                          "type": "boolean"
+                        },
+                        "reason": {
+                          "type": "string",
+                          "nullable": true
+                        },
+                        "responds_to_https": {
+                          "type": "boolean"
+                        },
+                        "enforces_https": {
+                          "type": "boolean"
+                        },
+                        "https_error": {
+                          "type": "string",
+                          "nullable": true
+                        },
+                        "is_https_eligible": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "caa_error": {
+                          "type": "string",
+                          "nullable": true
+                        }
+                      }
+                    },
+                    "alt_domain": {
+                      "type": "object",
+                      "nullable": true,
+                      "properties": {
+                        "host": {
+                          "type": "string"
+                        },
+                        "uri": {
+                          "type": "string"
+                        },
+                        "nameservers": {
+                          "type": "string"
+                        },
+                        "dns_resolves": {
+                          "type": "boolean"
+                        },
+                        "is_proxied": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cloudflare_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_fastly_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_old_ip_address": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_a_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "has_cname_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "has_mx_records_present": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_valid_domain": {
+                          "type": "boolean"
+                        },
+                        "is_apex_domain": {
+                          "type": "boolean"
+                        },
+                        "should_be_a_record": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_github_user_domain": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_pages_dot_github_dot_com": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_cname_to_fastly": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_pointed_to_github_pages_ip": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_non_github_pages_ip_present": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_pages_domain": {
+                          "type": "boolean"
+                        },
+                        "is_served_by_pages": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "is_valid": {
+                          "type": "boolean"
+                        },
+                        "reason": {
+                          "type": "string",
+                          "nullable": true
+                        },
+                        "responds_to_https": {
+                          "type": "boolean"
+                        },
+                        "enforces_https": {
+                          "type": "boolean"
+                        },
+                        "https_error": {
+                          "type": "string",
+                          "nullable": true
+                        },
+                        "is_https_eligible": {
+                          "type": "boolean",
+                          "nullable": true
+                        },
+                        "caa_error": {
+                          "type": "string",
+                          "nullable": true
+                        }
+                      }
+                    }
+                  }
+                },
+                "examples": {
+                  "default": {
+                    "value": {
+                      "domain": {
+                        "host": "example.com",
+                        "uri": "http://example.com/",
+                        "nameservers": "default",
+                        "dns_resolves": true,
+                        "is_proxied": false,
+                        "is_cloudflare_ip": false,
+                        "is_fastly_ip": false,
+                        "is_old_ip_address": false,
+                        "is_a_record": true,
+                        "has_cname_record": false,
+                        "has_mx_records_present": false,
+                        "is_valid_domain": true,
+                        "is_apex_domain": true,
+                        "should_be_a_record": true,
+                        "is_cname_to_github_user_domain": false,
+                        "is_cname_to_pages_dot_github_dot_com": false,
+                        "is_cname_to_fastly": false,
+                        "is_pointed_to_github_pages_ip": true,
+                        "is_non_github_pages_ip_present": false,
+                        "is_pages_domain": false,
+                        "is_served_by_pages": true,
+                        "is_valid": true,
+                        "reason": null,
+                        "responds_to_https": true,
+                        "enforces_https": true,
+                        "https_error": null,
+                        "is_https_eligible": true,
+                        "caa_error": null
+                      },
+                      "alt_domain": {
+                        "host": "www.example.com",
+                        "uri": "http://www.example.com/",
+                        "nameservers": "default",
+                        "dns_resolves": true,
+                        "is_proxied": false,
+                        "is_cloudflare_ip": false,
+                        "is_fastly_ip": false,
+                        "is_old_ip_address": false,
+                        "is_a_record": true,
+                        "has_cname_record": false,
+                        "has_mx_records_present": false,
+                        "is_valid_domain": true,
+                        "is_apex_domain": true,
+                        "should_be_a_record": true,
+                        "is_cname_to_github_user_domain": false,
+                        "is_cname_to_pages_dot_github_dot_com": false,
+                        "is_cname_to_fastly": false,
+                        "is_pointed_to_github_pages_ip": true,
+                        "is_non_github_pages_ip_present": false,
+                        "is_pages_domain": false,
+                        "is_served_by_pages": true,
+                        "is_valid": true,
+                        "reason": null,
+                        "responds_to_https": true,
+                        "enforces_https": true,
+                        "https_error": null,
+                        "is_https_eligible": true,
+                        "caa_error": null
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          },
+          "202": {
+            "description": "Empty response"
+          },
+          "400": {
+            "description": "Custom domains are not available for GitHub Pages"
+          },
+          "422": {
+            "description": "There isn't a CNAME for this page"
+          },
+          "404": {
+            "description": "Resource not found",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "title": "Basic Error",
+                  "description": "Basic Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string"
+                    },
+                    "documentation_url": {
+                      "type": "string"
+                    },
+                    "url": {
+                      "type": "string"
+                    },
+                    "status": {
+                      "type": "string"
+                    }
+                  }
+                }
+              }
+            }
+          }
+        },
+        "x-github": {
+          "githubCloudOnly": false,
+          "enabledForGitHubApps": true,
+          "category": "repos",
+          "subcategory": "pages"
+        }
+      }
+    },
     "/repos/{owner}/{repo}/projects": {
       "get": {
         "summary": "List repository projects",