diff --git a/README.rst b/README.rst
index 52dd821e..129c4e38 100644
--- a/README.rst
+++ b/README.rst
@@ -23,7 +23,7 @@ Features
 - Cookie support
 - HTML5 support
 - a command line and web interface
-- various check plugins available, eg. HTML syntax and antivirus checks.
+- various check plugins available
 
 Installation
 -------------
diff --git a/doc/src/index.rst b/doc/src/index.rst
index 5500f83d..8e96597b 100644
--- a/doc/src/index.rst
+++ b/doc/src/index.rst
@@ -56,8 +56,7 @@ Features
 - honors robots.txt exclusion protocol
 - Cookie support
 - HTML5 support
-- :ref:`Plugin support <man/linkchecker:PLUGINS>` allowing custom page checks. Currently available are
-  HTML and CSS syntax checks, Antivirus checks, and more.
+- :ref:`Plugin support <man/linkchecker:PLUGINS>` allowing custom page checks
 - Different interfaces: command line and web interface
 
 Screenshots
diff --git a/doc/src/man/linkchecker.rst b/doc/src/man/linkchecker.rst
index 2da89abe..f1efcb01 100644
--- a/doc/src/man/linkchecker.rst
+++ b/doc/src/man/linkchecker.rst
@@ -24,7 +24,6 @@ LinkChecker features
 -  support for robots.txt exclusion protocol
 -  support for Cookies
 -  support for HTML5
--  HTML and CSS syntax check
 -  Antivirus check
 -  a command line and web interface
 
diff --git a/doc/src/man/linkcheckerrc.rst b/doc/src/man/linkcheckerrc.rst
index 9fc09282..8eb49328 100644
--- a/doc/src/man/linkcheckerrc.rst
+++ b/doc/src/man/linkcheckerrc.rst
@@ -434,6 +434,10 @@ AnchorCheck
 
 Checks validity of HTML anchors.
 
+.. note::
+
+    The AnchorCheck plugin is currently broken and is disabled.
+
 LocationInfo
 ^^^^^^^^^^^^
 
@@ -471,6 +475,10 @@ HtmlSyntaxCheck
 Check the syntax of HTML pages with the online W3C HTML validator. See
 https://validator.w3.org/docs/api.html.
 
+.. note::
+
+    The HtmlSyntaxCheck plugin is currently broken and is disabled.
+
 HttpHeaderInfo
 ^^^^^^^^^^^^^^