diff --git a/generate.py b/generate.py
index c38bffde2..cf875048d 100644
--- a/generate.py
+++ b/generate.py
@@ -1,4 +1,5 @@
 # /// script
+# requires-python = ">=3.11"
 # dependencies = [
 #     "gitpython",
 #     "potodo",
@@ -16,6 +17,7 @@
 from jinja2 import Template
 
 import repositories
+import switcher
 import visitors
 from completion import branches_from_devguide, get_completion
 
@@ -30,13 +32,23 @@
     )
     subprocess.run(['make', '-C', Path(clones_dir, 'cpython/Doc'), 'venv'], check=True)
     subprocess.run(['make', '-C', Path(clones_dir, 'cpython/Doc'), 'gettext'], check=True)
+    switcher_languages = list(switcher.get_languages())
     for language, repo in repositories.get_languages_and_repos(devguide_dir):
         if repo:
             completion_number, translators_number = get_completion(clones_dir, repo)
             visitors_number = visitors.get_number_of_visitors(language)
         else:
             completion_number, visitors_number = 0.0, 0
-        completion_progress.append((language, repo, completion_number, translators_number, visitors_number))
+        completion_progress.append(
+            (
+                language,
+                repo,
+                completion_number,
+                translators_number,
+                visitors_number,
+                language in switcher_languages,
+            )
+        )
         print(completion_progress[-1])
 
 template = Template(
@@ -52,19 +64,27 @@
 <thead>
 <tr>
   <th>language</th>
+  <th>build</th>
   <th><a href="https://plausible.io/data-policy#how-we-count-unique-users-without-cookies">visitors<a/></th>
   <th>translators</th>
   <th>completion</th>
 </tr>
 </thead>
 <tbody>
-{% for language, repo, completion, translators, visitors in completion_progress | sort(attribute=2) | reverse %}
+{% for language, repo, completion, translators, visitors, in_switcher in completion_progress | sort(attribute=2) | reverse %}
 <tr>
   {% if repo %}
   <td data-label="language">
     <a href="https://github.com/{{ repo }}" target="_blank">
       {{ language }}
     </a>
+  </td>  
+  <td data-label="build">
+    {% if in_switcher %}
+      <a href="https://docs.python.org/{{ language }}/">in switcher</a>
+    {% else %}
+      ✗
+    {% endif %}
   </td>
   <td data-label="visitors">
     <a href="https://plausible.io/docs.python.org?filters=((contains,page,(/{{ language }}/)))" target="_blank">
diff --git a/style.css b/style.css
index 7270d08bb..a92e7514b 100644
--- a/style.css
+++ b/style.css
@@ -25,10 +25,10 @@ th {
   min-width: 50px;
   box-sizing: border-box;
 }
-td:nth-child(2) {
+td[data-label="visitors"] {
   text-align: right;
 }
-td:last-child {
+td[data-label="completion"] {
   width: 100%;
 }
 @media screen and (max-width: 600px) {
@@ -56,7 +56,7 @@ td:last-child {
     left: 10px;
     position: absolute;
   }
-  td:last-child {
+  td[data-label="completion"] {
     width: inherit;
   }
   .progress-bar {
diff --git a/switcher.py b/switcher.py
new file mode 100644
index 000000000..301b54812
--- /dev/null
+++ b/switcher.py
@@ -0,0 +1,37 @@
+"""
+Fetch languages in the https://docs.python.org language switcher.
+
+Return a defaultdict mapping language codes to a Boolean indicating
+whether it is in the language switcher.
+"""
+
+import tomllib
+from collections import defaultdict
+from typing import Generator
+
+import requests
+
+
+def get_languages() -> Generator[str, None, None]:
+    data = requests.get(
+        "https://raw.githubusercontent.com/"
+        "python/docsbuild-scripts/refs/heads/main/config.toml",
+        timeout=10,
+    ).text
+    config = tomllib.loads(data)
+    languages = config["languages"]
+    defaults = config["defaults"]
+    for code, language in languages.items():
+        if language.get("in_prod", defaults["in_prod"]):
+            yield code.lower().replace("_", "-")
+
+
+def main() -> None:
+    languages = list(get_languages())
+    print(languages)
+    for code in ("en", "pl", "ar", "zh-cn"):
+        print(f"{code}: {code in languages}")
+
+
+if __name__ == "__main__":
+    main()