diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b4465209..4b1fb392 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,6 +34,7 @@ jobs:
     - run: yarn install --no-ignore-optional --frozen-lockfile
     - run: yarn hugo:version
     - run: yarn build:preview
+    - run: yarn optimize
     - uses: actions/upload-artifact@master
       if: github.event_name == 'pull_request'
       with:
diff --git a/package.json b/package.json
index a8d67f37..70d332ab 100644
--- a/package.json
+++ b/package.json
@@ -23,10 +23,10 @@
     "serve:hugo": "hugo server --buildDrafts --buildFuture --port 1313 --bind 0.0.0.0 --verbose",
     "serve:docker": "docker build -t jarv.is:develop -f Dockerfile . && docker run -v $(pwd):/src -p 1313:1313 jarv.is:develop",
     "serve:netlify": "netlify dev --command 'yarn serve:hugo'",
-    "optimize": "yarn optimize:html && yarn optimize:css && yarn optimize:img",
+    "optimize": "get-folder-size --folder=public; yarn optimize:html && yarn optimize:css && yarn optimize:img; get-folder-size --folder=public",
     "optimize:html": "html-minifier --html5 --collapse-whitespace --preserve-line-breaks --minify-css --file-ext html --input-dir public --output-dir public **/*.html",
     "optimize:css": "cleancss -O0 --format 'keep-breaks' -o public/style.css public/style.css",
-    "optimize:img": "find public/ -type d -exec imagemin {}/* --plugin=jpegoptim --plugin=pngquant --plugin=optipng --plugin=svgo --plugin=gifsicle --out-dir={} \\;",
+    "optimize:img": "find public -type d | xargs -n1 -P8 -I{} imagemin {}/* --plugin=jpegoptim --plugin=pngquant --plugin=optipng --plugin=svgo --plugin=gifsicle --out-dir={}",
     "lint": "yarn lint:markdown; yarn lint:sass",
     "lint:markdown": "markdownlint content/notes/**/*.md",
     "lint:sass": "stylelint assets/sass/**/* --syntax scss",
@@ -36,6 +36,7 @@
   "devDependencies": {
     "clean-css-cli": "~4.3.0",
     "cross-env": "^6.0.3",
+    "get-folder-size": "^2.0.1",
     "html-minifier": "~4.0.0",
     "hugo-bin": "0.48.1",
     "imagemin-cli": "^5.0.0",
@@ -47,6 +48,7 @@
     "markdownlint-cli": "~0.19.0",
     "netlify-cli": "^2.25.0",
     "rimraf": "^3.0.0",
+    "shx": "^0.3.2",
     "stylelint": "~12.0.0",
     "stylelint-config-recommended-scss": "~4.1.0",
     "stylelint-scss": "~3.13.0"
diff --git a/yarn.lock b/yarn.lock
index 0e4c5363..3ec758d2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2374,6 +2374,11 @@ es-to-primitive@^1.2.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.2"
 
+es6-object-assign@^1.0.3:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/es6-object-assign/-/es6-object-assign-1.1.0.tgz#c2c3582656247c39ea107cb1e6652b6f9f24523c"
+  integrity sha1-wsNYJlYkfDnqEHyx5mUrb58kUjw=
+
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -3002,6 +3007,11 @@ fuzzy@^0.1.3:
   resolved "https://registry.yarnpkg.com/fuzzy/-/fuzzy-0.1.3.tgz#4c76ec2ff0ac1a36a9dccf9a00df8623078d4ed8"
   integrity sha1-THbsL/CsGjap3M+aAN+GIweNTtg=
 
+gar@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/gar/-/gar-1.0.4.tgz#f777bc7db425c0572fdeb52676172ca1ae9888b8"
+  integrity sha512-w4n9cPWyP7aHxKxYHFQMegj7WIAsL/YX/C4Bs5Rr8s1H9M1rNtRWRsw+ovYMkXDQ5S4ZbYHsHAPmevPjPgw44w==
+
 get-amd-module-type@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-amd-module-type/-/get-amd-module-type-3.0.0.tgz#bb334662fa04427018c937774570de495845c288"
@@ -3015,6 +3025,14 @@ get-caller-file@^2.0.1:
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
   integrity sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==
 
+get-folder-size@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/get-folder-size/-/get-folder-size-2.0.1.tgz#3fe0524dd3bad05257ef1311331417bcd020a497"
+  integrity sha512-+CEb+GDCM7tkOS2wdMKTn9vU7DgnKUTuDlehkNJKNSovdCOVxs14OfKCk4cvSaR3za4gj+OBdl9opPN9xrJ0zA==
+  dependencies:
+    gar "^1.0.4"
+    tiny-each-async "2.0.3"
+
 get-port@^3.1.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/get-port/-/get-port-3.2.0.tgz#dd7ce7de187c06c8bf353796ac71e099f0980ebc"
@@ -3160,7 +3178,7 @@ glob-to-regexp@^0.3.0:
   resolved "https://registry.yarnpkg.com/glob-to-regexp/-/glob-to-regexp-0.3.0.tgz#8c5a1494d2066c570cc3bfe4496175acc4d502ab"
   integrity sha1-jFoUlNIGbFcMw7/kSWF1rMTVAqs=
 
-glob@7.x, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6, glob@~7.1.2:
+glob@7.x, glob@^7.0.0, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6, glob@~7.1.2:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
@@ -3766,6 +3784,11 @@ inquirer@^6.5.1:
     strip-ansi "^5.1.0"
     through "^2.3.6"
 
+interpret@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.2.0.tgz#d5061a6224be58e8083985f5014d844359576296"
+  integrity sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw==
+
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"
@@ -6399,6 +6422,13 @@ readdirp@~3.2.0:
   dependencies:
     picomatch "^2.0.4"
 
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
+  dependencies:
+    resolve "^1.1.6"
+
 redact-env@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/redact-env/-/redact-env-0.2.0.tgz#f9ad9e63a04a1329a65a02289bbc007db7acc91c"
@@ -6603,7 +6633,7 @@ resolve-url@^0.2.1:
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
   integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
 
-resolve@^1.10.0, resolve@^1.12.0, resolve@^1.3.2:
+resolve@^1.1.6, resolve@^1.10.0, resolve@^1.12.0, resolve@^1.3.2:
   version "1.13.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.13.1.tgz#be0aa4c06acd53083505abb35f4d66932ab35d16"
   integrity sha512-CxqObCX8K8YtAhOBRg+lrcdn+LK+WYOS8tSjqSFbjtrI5PnS63QPhZl4+yKfrU9tdsbMu9Anr/amegT87M9Z6w==
@@ -6816,6 +6846,24 @@ shebang-regex@^3.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-3.0.0.tgz#ae16f1644d873ecad843b0307b143362d4c42172"
   integrity sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==
 
+shelljs@^0.8.1:
+  version "0.8.3"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.3.tgz#a7f3319520ebf09ee81275b2368adb286659b097"
+  integrity sha512-fc0BKlAWiLpwZljmOvAOTE/gXawtCoNrP5oaY7KIaQbbyHeQVg01pSEuEGvGh3HEdBU4baCD7wQBwADmM/7f7A==
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
+shx@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/shx/-/shx-0.3.2.tgz#40501ce14eb5e0cbcac7ddbd4b325563aad8c123"
+  integrity sha512-aS0mWtW3T2sHAenrSrip2XGv39O9dXIFUqxAEWHEOS1ePtGIBavdPJY1kE2IHl14V/4iCbUiNDPGdyYTtmhSoA==
+  dependencies:
+    es6-object-assign "^1.0.3"
+    minimist "^1.2.0"
+    shelljs "^0.8.1"
+
 signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
@@ -7457,6 +7505,11 @@ timed-out@^4.0.0, timed-out@^4.0.1:
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
   integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
 
+tiny-each-async@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/tiny-each-async/-/tiny-each-async-2.0.3.tgz#8ebbbfd6d6295f1370003fbb37162afe5a0a51d1"
+  integrity sha1-jru/1tYpXxNwAD+7NxYq/loKUdE=
+
 tmp@^0.0.33:
   version "0.0.33"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"