diff --git a/source/specifications/schemas/build-details-v1.0.schema.json b/extra/specifications/schemas/build-details-v1.0.schema.json
similarity index 100%
rename from source/specifications/schemas/build-details-v1.0.schema.json
rename to extra/specifications/schemas/build-details-v1.0.schema.json
diff --git a/source/specifications/schemas/direct-url.schema.json b/extra/specifications/schemas/direct-url.schema.json
similarity index 100%
rename from source/specifications/schemas/direct-url.schema.json
rename to extra/specifications/schemas/direct-url.schema.json
diff --git a/source/specifications/schemas/pylock.schema.json b/extra/specifications/schemas/pylock.schema.json
similarity index 100%
rename from source/specifications/schemas/pylock.schema.json
rename to extra/specifications/schemas/pylock.schema.json
diff --git a/noxfile.py b/noxfile.py
index 698e82f9d..484a8d39a 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -89,6 +89,7 @@ def linkcheck(session):
         "--keep-going",  # be strict
         "source",  # where the rst files are located
         "build",  # where to put the check output
+        *session.posargs,
     )
 
 
diff --git a/source/conf.py b/source/conf.py
index 030a167e4..d18faf662 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -83,6 +83,10 @@
     # https://plausible.io/packaging.python.org
     html_js_files.extend(_metrics_js_files)
 
+html_extra_path = [
+    "../extra",
+]
+
 # -- Options for HTML help output ------------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-help-output
 
@@ -158,6 +162,9 @@
     # https://github.com/pypa/packaging.python.org/issues/1744
     r"https://pypi\.org/",
 ]
+linkcheck_exclude_documents = [
+    "specifications/schemas/index",
+]
 
 # -- Options for extlinks ----------------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/extensions/extlinks.html#configuration
diff --git a/source/specifications/build-details/v1.0.rst b/source/specifications/build-details/v1.0.rst
index cfe902e1e..3a8cfe277 100644
--- a/source/specifications/build-details/v1.0.rst
+++ b/source/specifications/build-details/v1.0.rst
@@ -8,7 +8,7 @@
 Specification
 -------------
 
-.. jsonschema:: ../schemas/build-details-v1.0.schema.json
+.. jsonschema:: ../../../extra/specifications/schemas/build-details-v1.0.schema.json
     :lift_title: false
 
 
diff --git a/source/specifications/direct-url-data-structure.rst b/source/specifications/direct-url-data-structure.rst
index 5f3af0fae..a82537f0a 100644
--- a/source/specifications/direct-url-data-structure.rst
+++ b/source/specifications/direct-url-data-structure.rst
@@ -236,7 +236,7 @@ JSON Schema
 
 The following JSON Schema can be used to validate the contents of ``direct_url.json``:
 
-.. literalinclude:: schemas/direct-url.schema.json
+.. literalinclude:: ../../extra/specifications/schemas/direct-url.schema.json
 
 Examples
 ========