diff --git a/.cspell.json b/.cspell.json
new file mode 100644
index 000000000..b1e051de8
--- /dev/null
+++ b/.cspell.json
@@ -0,0 +1,55 @@
+{
+  "version": "0.2",
+  "words": [
+    "adcontainer",
+    "atitle",
+    "attrname",
+    "attrvalue",
+    "bgsound",
+    "blabla",
+    "blankspace",
+    "checkstyle",
+    "clsx",
+    "codecov",
+    "codeql",
+    "commitlint",
+    "enochian",
+    "extlang",
+    "guoyu",
+    "hjid",
+    "hjsv",
+    "Hotjar",
+    "htmlhint",
+    "htmlhintrc",
+    "htmlparser",
+    "Infima",
+    "invision",
+    "langtag",
+    "mingo",
+    "nocolor",
+    "nodir",
+    "nomix",
+    "onttt",
+    "opencollective",
+    "ruleid",
+    "rulesdir",
+    "ruleset",
+    "selfclosing",
+    "sometag",
+    "specialchars",
+    "stylelint",
+    "svgr",
+    "tagend",
+    "tagname",
+    "tagstart",
+    "testhref",
+    "testtitle",
+    "uffff",
+    "unmin",
+    "xiang",
+    "Yanis"
+  ],
+  "language": "en,en-US",
+  "ignorePaths": [".cspell.json"],
+  "useGitignore": true
+}
diff --git a/.github/workflows/spellcheck.yml b/.github/workflows/spellcheck.yml
new file mode 100644
index 000000000..8474788c0
--- /dev/null
+++ b/.github/workflows/spellcheck.yml
@@ -0,0 +1,22 @@
+name: 'Check spelling'
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor != 'dependabot[bot]' }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: streetsidesoftware/cspell-action@v6
+        with:
+          check_dot_files: false
+          incremental_files_only: true
+          inline: warning
+          strict: false
diff --git a/.gitignore b/.gitignore
index b14c4db7c..81de3fa1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,7 +37,7 @@ lib-cov
 .nyc_output
 coverage
 
-# Compiled binary addons (http://nodejs.org/api/addons.html)
+# Compiled binary addons (https://nodejs.org/api/addons.html)
 build/Release
 
 # Dependency directory
diff --git a/.prettierignore b/.prettierignore
index 6c31cb9d0..1d7127100 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -31,3 +31,5 @@ CHANGELOG.md
 
 # Report created by test
 report.html
+
+CODEOWNERS
diff --git a/.prettierrc b/.prettierrc.json
similarity index 100%
rename from .prettierrc
rename to .prettierrc.json
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 1991f93fd..19c7bca5b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -7,7 +7,7 @@ First, thank you for considering contributing to HTMLHint! It's people like you
 We welcome any type of contribution, not only code. You can help with
 
 - **QA**: file bug reports, the more details you can give the better (e.g. screenshots with the console open)
-- **Marketing**: writing blog posts, howto's, printing stickers, ...
+- **Marketing**: writing blog posts, how-to's, printing stickers, ...
 - **Community**: presenting the project at meetups, organizing a dedicated meetup for the local community, ...
 - **Code**: take a look at the [open issues](https://github.com/thedaviddias/HTMLHint/issues). Even if you can't write code, commenting on them, showing that you care about a given issue matters. It helps us triage them.
 
@@ -26,7 +26,7 @@ It is also always helpful to have some context for your pull request. What was t
 
 ## Questions
 
-If you have any questions, create an [issue](issue) (protip: do a quick search first to see if someone else didn't ask the same question before!).
+If you have any questions, create an [issue](issue) (ProTip: do a quick search first to see if someone else didn't ask the same question before!).
 You can also reach us at thedaviddias@gmail.com.
 
 <!-- This `CONTRIBUTING.md` is based on @nayafia's template https://github.com/nayafia/contributing-template -->
diff --git a/commitlint.config.js b/commitlint.config.js
index c95b02700..1bc490af7 100644
--- a/commitlint.config.js
+++ b/commitlint.config.js
@@ -9,7 +9,7 @@ module.exports = {
   extends: ['@commitlint/config-conventional'],
   parserPreset: './parser-preset',
 
-  // Add your own rules. See http://marionebl.github.io/commitlint
+  // Add your own rules. See https://marionebl.github.io/commitlint
   rules: {
     // Apply valid scopes and types
     'scope-enum': [scopeValidationLevel, 'always', validScopes],
diff --git a/docs/user-guide/rules/href-abs-or-rel.md b/docs/user-guide/rules/href-abs-or-rel.md
index dfb7c0f4a..93393a2af 100644
--- a/docs/user-guide/rules/href-abs-or-rel.md
+++ b/docs/user-guide/rules/href-abs-or-rel.md
@@ -17,7 +17,7 @@ The following pattern are **not** considered violations:
 
 <!-- prettier-ignore -->
 ```html
-abs: <a href="http://www.alibaba.com/">test1</a> <a href="https://www.alipay.com/">test2</a>
+abs: <a href="https://www.htmlhint.com/">test1</a> <a href="https://www.github.com/">test2</a>
 rel: <a href="test.html">test1</a> <a href="../test.html">test2</a>
 
 ```
diff --git a/website/docusaurus.config.js b/website/docusaurus.config.js
index 0c4f13ba7..5197a9ff0 100644
--- a/website/docusaurus.config.js
+++ b/website/docusaurus.config.js
@@ -77,8 +77,8 @@ const config = {
                 href: 'https://stackoverflow.com/questions/tagged/htmlhint',
               },
               {
-                label: 'Twitter',
-                href: 'https://twitter.com/HTMLHint',
+                label: 'X (Twitter)',
+                href: 'https://x.com/HTMLHint',
               },
             ],
           },
diff --git a/website/static/img/site.webmanifest b/website/static/img/site.webmanifest
index de65106f4..799bbc8b1 100644
--- a/website/static/img/site.webmanifest
+++ b/website/static/img/site.webmanifest
@@ -1,6 +1,6 @@
 {
-    "name": "",
-    "short_name": "",
+    "name": "HTMLHint",
+    "short_name": "HTMLHint",
     "icons": [
         {
             "src": "/android-chrome-192x192.png",