{
  "api": {
    "PerformanceMark": {
      "__compat": {
        "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark",
        "spec_url": "https://w3c.github.io/user-timing/#performancemark",
        "tags": [
          "web-features:performance"
        ],
        "support": {
          "chrome": {
            "version_added": "28"
          },
          "chrome_android": "mirror",
          "deno": {
            "version_added": "1.2"
          },
          "edge": {
            "version_added": "12"
          },
          "firefox": {
            "version_added": "38"
          },
          "firefox_android": "mirror",
          "ie": {
            "version_added": "10"
          },
          "nodejs": [
            {
              "version_added": "19.0.0"
            },
            {
              "version_added": "16.0.0",
              "partial_implementation": true,
              "notes": "Available as a part of the `perf_hooks` module."
            }
          ],
          "oculus": "mirror",
          "opera": "mirror",
          "opera_android": {
            "version_added": "14"
          },
          "safari": {
            "version_added": "11"
          },
          "safari_ios": "mirror",
          "samsunginternet_android": "mirror",
          "webview_android": "mirror",
          "webview_ios": "mirror"
        },
        "status": {
          "experimental": false,
          "standard_track": true,
          "deprecated": false
        }
      },
      "PerformanceMark": {
        "__compat": {
          "description": "`PerformanceMark()` constructor",
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark/PerformanceMark",
          "spec_url": "https://w3c.github.io/user-timing/#dom-performancemark-constructor",
          "tags": [
            "web-features:performance"
          ],
          "support": {
            "chrome": {
              "version_added": "76"
            },
            "chrome_android": "mirror",
            "deno": {
              "version_added": "1.2"
            },
            "edge": "mirror",
            "firefox": {
              "version_added": "101"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "nodejs": {
              "version_added": "16.0.0"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "14.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "79"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      },
      "detail": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceMark/detail",
          "spec_url": "https://w3c.github.io/user-timing/#dom-performancemark-detail",
          "tags": [
            "web-features:performance"
          ],
          "support": {
            "chrome": {
              "version_added": "78"
            },
            "chrome_android": "mirror",
            "deno": {
              "version_added": "1.2"
            },
            "edge": "mirror",
            "firefox": {
              "version_added": "101"
            },
            "firefox_android": "mirror",
            "ie": {
              "version_added": false
            },
            "nodejs": {
              "version_added": "16.0.0"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "14.1"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": {
              "version_added": "79"
            },
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}