diff --git a/.travis.yml b/.travis.yml
index 028ed0b8..e17f3cd0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -26,6 +26,8 @@ matrix:
       env: TOXENV=test-pypy3,codecov
     - python: "2.7"
       env: TOXENV=packaging-py27
+    - python: "3.8"
+      env: TOXENV=docs
 
 
 install:
diff --git a/docs/api.rst b/docs/api.rst
index 47854540..e5473f84 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -61,7 +61,6 @@ URLs have many parts, and URL objects have many attributes to represent them.
 .. autoattribute:: hyperlink.URL.userinfo
 .. autoattribute:: hyperlink.URL.user
 .. autoattribute:: hyperlink.URL.rooted
-.. autoattribute:: hyperlink.URL.family
 
 Low-level functions
 -------------------
@@ -70,6 +69,6 @@ A couple of notable helpers used by the :class:`~hyperlink.URL` type.
 
 .. autoclass:: hyperlink.URLParseError
 .. autofunction:: hyperlink.register_scheme
-.. autofunction:: hyperlink.parse_host
+.. autofunction:: hyperlink.parse
 
 .. TODO: run doctests in docs?
diff --git a/src/hyperlink/__init__.py b/src/hyperlink/__init__.py
index a027d52d..f680b01a 100644
--- a/src/hyperlink/__init__.py
+++ b/src/hyperlink/__init__.py
@@ -1,16 +1,17 @@
+from ._url import (
+    parse,
+    register_scheme,
+    URL,
+    EncodedURL,
+    DecodedURL,
+    URLParseError,
+)
 
-from ._url import (URL,
-                   parse,
-                   EncodedURL,
-                   DecodedURL,
-                   URLParseError,
-                   register_scheme)
-
-__all__ = [
-    "URL",
+__all__ = (
     "parse",
+    "register_scheme",
+    "URL",
     "EncodedURL",
     "DecodedURL",
     "URLParseError",
-    "register_scheme",
-]
+)
diff --git a/tox.ini b/tox.ini
index d8098dd7..4be3fb70 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ envlist =
     test-py{26,27,34,35,36,37,38,py,py3}
     coverage_report
     packaging
+    docs
 
 skip_missing_interpreters = {tty:True:False}
 
@@ -220,11 +221,53 @@ deps =
 commands =
     coverage combine
     coverage xml -o "{env:COVERAGE_XML}"
-    codecov --file="{env:COVERAGE_XML}" --env \
-        GITHUB_REF GITHUB_COMMIT GITHUB_USER GITHUB_WORKFLOW \
-        TRAVIS_BRANCH TRAVIS_BUILD_WEB_URL TRAVIS_COMMIT TRAVIS_COMMIT_MESSAGE \
-        APPVEYOR_REPO_BRANCH APPVEYOR_REPO_COMMIT \
-        APPVEYOR_REPO_COMMIT_AUTHOR_EMAIL APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED
+    codecov --file="{env:COVERAGE_XML}" --env                 \
+        GITHUB_REF GITHUB_COMMIT GITHUB_USER GITHUB_WORKFLOW  \
+        TRAVIS_BRANCH TRAVIS_BUILD_WEB_URL                    \
+        TRAVIS_COMMIT TRAVIS_COMMIT_MESSAGE                   \
+        APPVEYOR_REPO_BRANCH APPVEYOR_REPO_COMMIT             \
+        APPVEYOR_REPO_COMMIT_AUTHOR_EMAIL                     \
+        APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED
+
+
+##
+# Documentation
+##
+
+[testenv:docs]
+
+description = build documentation
+
+basepython = python3.8
+
+deps =
+    Sphinx==2.2.1
+    sphinx-rtd-theme==0.4.3
+
+commands =
+    sphinx-build                           \
+        -b html -d "{envtmpdir}/doctrees"  \
+        "{toxinidir}/docs"                 \
+        "{toxworkdir}/docs/html"
+
+
+[testenv:docs-auto]
+
+description = build documentation and rebuild automatically
+
+basepython = python3.8
+
+deps =
+    Sphinx==2.2.1
+    sphinx-rtd-theme==0.4.3
+    sphinx-autobuild==0.7.1
+
+commands =
+    sphinx-autobuild                       \
+        -b html -d "{envtmpdir}/doctrees"  \
+        --host=localhost                   \
+        "{toxinidir}/docs"                 \
+        "{toxworkdir}/docs/html"
 
 
 ##