diff --git a/doc/faq.rst b/doc/faq.rst
index 168849e9ac..541c727d22 100644
--- a/doc/faq.rst
+++ b/doc/faq.rst
@@ -932,7 +932,7 @@ official phpMyAdmin-homepage.
 
 When MySQL is running in ANSI-compatibility mode, there are some major
 differences in how :term:`SQL` is structured (see
-<http://dev.mysql.com/doc/mysql/en/ansi-mode.html>). Most important of all, the
+<http://dev.mysql.com/doc/refman/5.7/en/sql-mode.html>). Most important of all, the
 quote-character (") is interpreted as an identifier quote character and not as
 a string quote character, which makes many internal phpMyAdmin operations into
 invalid :term:`SQL` statements. There is no
diff --git a/doc/setup.rst b/doc/setup.rst
index 7f2b2ce4f6..d0e8399ef6 100644
--- a/doc/setup.rst
+++ b/doc/setup.rst
@@ -42,7 +42,7 @@ Ubuntu
 
 Ubuntu ships phpMyAdmin package, however if you want to use recent version, you
 can use packages from
-`PPA for Michal Čihař <https://launchpad.net/~nijel/+archive/phpmyadmin>`_.
+`PPA for Michal Čihař <https://launchpad.net/~nijel/+archive/ubuntu/phpmyadmin>`_.
 
 Gentoo
 ------
@@ -82,7 +82,7 @@ Installing on Windows
 
 The easiest way to get phpMyAdmin on Windows is using third party products
 which include phpMyAdmin together with a database and web server such as
-`XAMPP <http://www.apachefriends.org/en/xampp.html>`_.
+`XAMPP <https://www.apachefriends.org/index.html>`_.
 
 You can find more of such options at `Wikipedia <https://en.wikipedia.org/wiki/List_of_AMP_packages>`_.
 
diff --git a/doc/transformations.rst b/doc/transformations.rst
index 4c3ce46c96..83533a5271 100644
--- a/doc/transformations.rst
+++ b/doc/transformations.rst
@@ -29,7 +29,7 @@ options, you can consult your *<www.your-host.com>/<your-install-
 dir>/transformation\_overview.php* installation.
 
 For a tutorial on how to effectively use transformations, see our
-`Link section <http://www.phpmyadmin.net/home_page/docs.php>`_ on the
+`Link section <https://www.phpmyadmin.net/docs/>`_ on the
 official phpMyAdmin homepage.
 
 .. _transformationshowto:
@@ -128,9 +128,9 @@ The applyTransformation() method always gets passed three variables:
    function as an array.
 #. **$meta** - Contains an object with information about your column. The
    data is drawn from the output of the `mysql\_fetch\_field()
-   <http://www.php.net/mysql_fetch_field>`_ function. This means, all
+   <http://php.net/mysql_fetch_field>`_ function. This means, all
    object properties described on the `manual page
-   <http://www.php.net/mysql_fetch_field>`_ are available in this
+   <http://php.net/mysql_fetch_field>`_ are available in this
    variable and can be used to transform a column accordingly to
    unsigned/zerofill/not\_null/... properties. The $meta->mimetype
    variable contains the original MIME-type of the column (i.e.