diff --git a/.github/workflows/size-limit.yml b/.github/workflows/size-limit.yml
new file mode 100644
index 0000000000..c0ec536857
--- /dev/null
+++ b/.github/workflows/size-limit.yml
@@ -0,0 +1,37 @@
+name: Performance
+
+on:
+  pull_request:
+    paths: ['dist/**']
+
+  workflow_dispatch:
+
+jobs:
+  install:
+    name: Install
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Install dependencies
+        uses: ./.github/workflows/actions/install-node
+
+  size:
+    name: Size Limit
+    runs-on: ubuntu-latest
+    needs: [install]
+
+    strategy:
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Restore dependencies
+        uses: ./.github/workflows/actions/install-node
+
+      - name: Run size-limit
+        run: npm run size
diff --git a/package-lock.json b/package-lock.json
index 64f07e68d5..3d77c67b46 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -55,6 +55,7 @@
         "@percy/cli": "^1.16.0",
         "@percy/puppeteer": "^2.0.2",
         "@percy/sdk-utils": "^1.16.0",
+        "@size-limit/preset-big-lib": "^8.1.0",
         "babel-jest": "^29.3.1",
         "cheerio": "^1.0.0-rc.12",
         "eslint": "^8.29.0",
@@ -76,6 +77,7 @@
         "outdent": "^0.8.0",
         "puppeteer": "^19.3.0",
         "sass-color-helpers": "^2.1.1",
+        "size-limit": "^8.1.0",
         "standard": "^17.0.0",
         "stylelint": "^14.16.0",
         "stylelint-config-gds": "^0.2.0",
@@ -3188,6 +3190,107 @@
         "@sinonjs/commons": "^1.7.0"
       }
     },
+    "node_modules/@sitespeed.io/tracium": {
+      "version": "0.3.3",
+      "resolved": "https://registry.npmjs.org/@sitespeed.io/tracium/-/tracium-0.3.3.tgz",
+      "integrity": "sha512-dNZafjM93Y+F+sfwTO5gTpsGXlnc/0Q+c2+62ViqP3gkMWvHEMSKkaEHgVJLcLg3i/g19GSIPziiKpgyne07Bw==",
+      "dev": true,
+      "dependencies": {
+        "debug": "^4.1.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/@size-limit/file": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@size-limit/file/-/file-8.1.0.tgz",
+      "integrity": "sha512-Ur+NgJSRHBnbQBrD8X2doxXYdBcVJsMxe2KfWrUmnZ6wYz09YKhQ1iYLqNztjf2yf/JEp00zp1vyhmimUQfUHQ==",
+      "dev": true,
+      "dependencies": {
+        "semver": "7.3.7"
+      },
+      "engines": {
+        "node": "^14.0.0 || ^16.0.0 || >=18.0.0"
+      },
+      "peerDependencies": {
+        "size-limit": "8.1.0"
+      }
+    },
+    "node_modules/@size-limit/file/node_modules/semver": {
+      "version": "7.3.7",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.3.7.tgz",
+      "integrity": "sha512-QlYTucUYOews+WeEujDoEGziz4K6c47V/Bd+LjSSYcA94p+DmINdf7ncaUinThfvZyu13lN9OY1XDxt8C0Tw0g==",
+      "dev": true,
+      "dependencies": {
+        "lru-cache": "^6.0.0"
+      },
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@size-limit/preset-big-lib": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@size-limit/preset-big-lib/-/preset-big-lib-8.1.0.tgz",
+      "integrity": "sha512-onkwmJt+gXzoRXOkcmvAX2mGyAoS6vXltqZsQHKpqYENJDghi5o4XuIZhYoEdsAYeP/vrM7u9jGGB7a0PGXR+Q==",
+      "dev": true,
+      "dependencies": {
+        "@size-limit/file": "8.1.0",
+        "@size-limit/time": "8.1.0",
+        "@size-limit/webpack": "8.1.0"
+      },
+      "peerDependencies": {
+        "size-limit": "8.1.0"
+      }
+    },
+    "node_modules/@size-limit/time": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@size-limit/time/-/time-8.1.0.tgz",
+      "integrity": "sha512-rOfIqpq8RSjKUnByJcWr2qw8XBTo3DAL16lmzjILvzQBkKi1kgDHU4QVa9K/BehYqH+Lx3rA3pVFMrQ5aJsOkg==",
+      "dev": true,
+      "dependencies": {
+        "estimo": "^2.3.6",
+        "react": "^17.0.2"
+      },
+      "engines": {
+        "node": "^14.0.0 || ^16.0.0 || >=18.0.0"
+      },
+      "peerDependencies": {
+        "size-limit": "8.1.0"
+      }
+    },
+    "node_modules/@size-limit/webpack": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/@size-limit/webpack/-/webpack-8.1.0.tgz",
+      "integrity": "sha512-TLego57hQbR0dmYZzIa9KZecebGMJoxZaqJTx9v3NDllxt6kJTljVXWghEvsGLpdKQfZTqraZ6nRm38+lG3sNw==",
+      "dev": true,
+      "dependencies": {
+        "escape-string-regexp": "^4.0.0",
+        "nanoid": "^3.3.4",
+        "webpack": "^5.74.0"
+      },
+      "engines": {
+        "node": "^14.0.0 || ^16.0.0 || >=18.0.0"
+      },
+      "peerDependencies": {
+        "size-limit": "8.1.0"
+      }
+    },
+    "node_modules/@size-limit/webpack/node_modules/escape-string-regexp": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
+      "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==",
+      "dev": true,
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/@szmarczak/http-timer": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-1.1.2.tgz",
@@ -5280,6 +5383,15 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/bytes-iec": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/bytes-iec/-/bytes-iec-3.1.1.tgz",
+      "integrity": "sha512-fey6+4jDK7TFtFg/klGSvNKJctyU7n2aQdnM+CO0ruLPbqqMOM8Tio0Pc+deqUeVKX1tL5DQep1zQ7+37aTAsA==",
+      "dev": true,
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
     "node_modules/cacache": {
       "version": "15.3.0",
       "resolved": "https://registry.npmjs.org/cacache/-/cacache-15.3.0.tgz",
@@ -5727,6 +5839,12 @@
       "integrity": "sha512-yH4RezKOGlOhxkmhbeNuC4eYZKAUsEaGtBuBzDDP1eFUKiccDWzBABxBfOx31IDwDIXMTxWuwAxUGModvkbuVw==",
       "dev": true
     },
+    "node_modules/ci-job-number": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/ci-job-number/-/ci-job-number-1.2.2.tgz",
+      "integrity": "sha512-CLOGsVDrVamzv8sXJGaILUVI6dsuAkouJP/n6t+OxLPeeA4DDby7zn9SB6EUpa1H7oIKoE+rMmkW80zYsFfUjA==",
+      "dev": true
+    },
     "node_modules/cjs-module-lexer": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/cjs-module-lexer/-/cjs-module-lexer-1.2.2.tgz",
@@ -8829,6 +8947,84 @@
         "node": ">=4.0"
       }
     },
+    "node_modules/estimo": {
+      "version": "2.3.6",
+      "resolved": "https://registry.npmjs.org/estimo/-/estimo-2.3.6.tgz",
+      "integrity": "sha512-aPd3VTQAL1TyDyhFfn6fqBTJ9WvbRZVN4Z29Buk6+P6xsI0DuF5Mh3dGv6kYCUxWnZkB4Jt3aYglUxOtuwtxoA==",
+      "dev": true,
+      "dependencies": {
+        "@sitespeed.io/tracium": "^0.3.3",
+        "commander": "^9.1.0",
+        "find-chrome-bin": "0.1.0",
+        "nanoid": "^3.3.2",
+        "puppeteer-core": "^13.5.1"
+      },
+      "bin": {
+        "estimo": "scripts/cli.js"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/estimo/node_modules/commander": {
+      "version": "9.4.1",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-9.4.1.tgz",
+      "integrity": "sha512-5EEkTNyHNGFPD2H+c/dXXfQZYa/scCKasxWcXJaWnNJ99pnQN9Vnmqow+p+PlFPE63Q6mThaZws1T+HxfpgtPw==",
+      "dev": true,
+      "engines": {
+        "node": "^12.20.0 || >=14"
+      }
+    },
+    "node_modules/estimo/node_modules/devtools-protocol": {
+      "version": "0.0.981744",
+      "resolved": "https://registry.npmjs.org/devtools-protocol/-/devtools-protocol-0.0.981744.tgz",
+      "integrity": "sha512-0cuGS8+jhR67Fy7qG3i3Pc7Aw494sb9yG9QgpG97SFVWwolgYjlhJg7n+UaHxOQT30d1TYu/EYe9k01ivLErIg==",
+      "dev": true
+    },
+    "node_modules/estimo/node_modules/puppeteer-core": {
+      "version": "13.7.0",
+      "resolved": "https://registry.npmjs.org/puppeteer-core/-/puppeteer-core-13.7.0.tgz",
+      "integrity": "sha512-rXja4vcnAzFAP1OVLq/5dWNfwBGuzcOARJ6qGV7oAZhnLmVRU8G5MsdeQEAOy332ZhkIOnn9jp15R89LKHyp2Q==",
+      "dev": true,
+      "dependencies": {
+        "cross-fetch": "3.1.5",
+        "debug": "4.3.4",
+        "devtools-protocol": "0.0.981744",
+        "extract-zip": "2.0.1",
+        "https-proxy-agent": "5.0.1",
+        "pkg-dir": "4.2.0",
+        "progress": "2.0.3",
+        "proxy-from-env": "1.1.0",
+        "rimraf": "3.0.2",
+        "tar-fs": "2.1.1",
+        "unbzip2-stream": "1.4.3",
+        "ws": "8.5.0"
+      },
+      "engines": {
+        "node": ">=10.18.1"
+      }
+    },
+    "node_modules/estimo/node_modules/ws": {
+      "version": "8.5.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.5.0.tgz",
+      "integrity": "sha512-BWX0SWVgLPzYwF8lTzEy1egjhS4S4OEAHfsO8o65WOVsrnSRGaSiUaa9e0ggGlkMTtBlmOpEXiie9RUcBO86qg==",
+      "dev": true,
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/estraverse": {
       "version": "5.3.0",
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
@@ -9445,6 +9641,15 @@
         "url": "https://github.com/avajs/find-cache-dir?sponsor=1"
       }
     },
+    "node_modules/find-chrome-bin": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/find-chrome-bin/-/find-chrome-bin-0.1.0.tgz",
+      "integrity": "sha512-XoFZwaEn1R3pE6zNG8kH64l2e093hgB9+78eEKPmJK0o1EXEou+25cEWdtu2qq4DBQPDSe90VJAWVI2Sz9pX6Q==",
+      "dev": true,
+      "engines": {
+        "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
+      }
+    },
     "node_modules/find-file-up": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/find-file-up/-/find-file-up-0.1.3.tgz",
@@ -17175,6 +17380,21 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/nanospinner": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/nanospinner/-/nanospinner-1.1.0.tgz",
+      "integrity": "sha512-yFvNYMig4AthKYfHFl1sLj7B2nkHL4lzdig4osvl9/LdGbXwrdFRoqBS98gsEsOakr0yH+r5NZ/1Y9gdVB8trA==",
+      "dev": true,
+      "dependencies": {
+        "picocolors": "^1.0.0"
+      }
+    },
+    "node_modules/nanospinner/node_modules/picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "node_modules/natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
@@ -20582,6 +20802,19 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react": {
+      "version": "17.0.2",
+      "resolved": "https://registry.npmjs.org/react/-/react-17.0.2.tgz",
+      "integrity": "sha512-gnhPt75i/dq/z3/6q/0asP78D0u592D5L1pd7M8P+dck6Fu/jJeL6iVVK23fptSUZj8Vjf++7wXA8UNclGQcbA==",
+      "dev": true,
+      "dependencies": {
+        "loose-envify": "^1.1.0",
+        "object-assign": "^4.1.1"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/react-is": {
       "version": "18.2.0",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-18.2.0.tgz",
@@ -22156,6 +22389,34 @@
       "integrity": "sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==",
       "dev": true
     },
+    "node_modules/size-limit": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/size-limit/-/size-limit-8.1.0.tgz",
+      "integrity": "sha512-bUL+Uyyt/G+a1XzKlI2WKHVDepmXtqMDhF65pdtjccheiQTNjExWW4nFefgbRL2QgNTzRfK6ayFKjO3o4ER4gg==",
+      "dev": true,
+      "dependencies": {
+        "bytes-iec": "^3.1.1",
+        "chokidar": "^3.5.3",
+        "ci-job-number": "^1.2.2",
+        "globby": "^11.1.0",
+        "lilconfig": "^2.0.6",
+        "mkdirp": "^1.0.4",
+        "nanospinner": "^1.1.0",
+        "picocolors": "^1.0.0"
+      },
+      "bin": {
+        "size-limit": "bin.js"
+      },
+      "engines": {
+        "node": "^14.0.0 || ^16.0.0 || >=18.0.0"
+      }
+    },
+    "node_modules/size-limit/node_modules/picocolors": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ==",
+      "dev": true
+    },
     "node_modules/slash": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-5.0.0.tgz",
diff --git a/package.json b/package.json
index d17a2d5d5f..2a0c4ddf88 100644
--- a/package.json
+++ b/package.json
@@ -28,14 +28,15 @@
     "postbuild:package": "jest --color --selectProjects \"Gulp tasks\" --testMatch \"**/*build-package*\"",
     "postbuild:dist": "jest --color --selectProjects \"Gulp tasks\" --testMatch \"**/*build-dist*\"",
     "pretest": "npm run build:compile",
-    "test": "jest --color --ignoreProjects \"Gulp tasks\" --maxWorkers=50%",
+    "test": "jest --color --ignoreProjects \"Gulp tasks\" --maxWorkers=50% && size-limit",
     "test:screenshots": "node ./tasks/screenshot-components.mjs",
     "lint": "npm run lint:js && npm run lint:scss",
     "lint:js": "npm run lint:js:cli -- \"**/*.{cjs,js,mjs}\"",
     "lint:js:cli": "eslint --cache --cache-location .cache/eslint --cache-strategy content --color --ignore-path .gitignore --max-warnings 0",
     "lint:scss": "npm run lint:scss:cli -- \"{app,src}/**/*.scss\"",
     "lint:scss:cli": "stylelint --cache --cache-location .cache/stylelint --cache-strategy content --color --ignore-path .gitignore --max-warnings 0",
-    "prepare": "node -e \"try { require('husky').install() } catch (e) {if (e.code !== 'MODULE_NOT_FOUND') throw e}\""
+    "prepare": "node -e \"try { require('husky').install() } catch (e) {if (e.code !== 'MODULE_NOT_FOUND') throw e}\"",
+    "size": "npm run build:dist && size-limit"
   },
   "dependencies": {
     "@babel/core": "^7.20.5",
@@ -80,6 +81,7 @@
     "@percy/cli": "^1.16.0",
     "@percy/puppeteer": "^2.0.2",
     "@percy/sdk-utils": "^1.16.0",
+    "@size-limit/preset-big-lib": "^8.1.0",
     "babel-jest": "^29.3.1",
     "cheerio": "^1.0.0-rc.12",
     "eslint": "^8.29.0",
@@ -101,11 +103,18 @@
     "outdent": "^0.8.0",
     "puppeteer": "^19.3.0",
     "sass-color-helpers": "^2.1.1",
+    "size-limit": "^8.1.0",
     "standard": "^17.0.0",
     "stylelint": "^14.16.0",
     "stylelint-config-gds": "^0.2.0",
     "stylelint-order": "^5.0.0",
     "vinyl": "^3.0.0",
     "wait-on": "^6.0.1"
-  }
+  },
+  "size-limit": [
+    {
+      "limit": "500ms",
+      "path": "dist/govuk-frontend-4.4.0.min.js"
+    }
+  ]
 }