diff --git a/_posts/14-02-01-Opcode-Cache.md b/_posts/14-02-01-Opcode-Cache.md
index c4be0b1..063d54b 100644
--- a/_posts/14-02-01-Opcode-Cache.md
+++ b/_posts/14-02-01-Opcode-Cache.md
@@ -29,6 +29,6 @@ Read more about opcode caches:
 [opcache-book]: http://php.net/book.opcache
 [APC]: http://php.net/book.apc
 [XCache]: http://xcache.lighttpd.net/
-[Zend Optimizer+]: http://www.zend.com/products/server/
+[Zend Optimizer+]: http://www.zend.com/en/products/zend_server
 [WinCache]: http://www.iis.net/download/wincacheforphp
-[PHP_accelerators]: http://en.wikipedia.org/wiki/List_of_PHP_accelerators
\ No newline at end of file
+[PHP_accelerators]: http://en.wikipedia.org/wiki/List_of_PHP_accelerators