LinkByLink

A platform-independent link checker and HTML validator Checking websites for broken links internal and external links and
invalid email addresses is an indispensable means to ensure professional
website.
LinkByLink is a useful application which solves these and other tasks, be it under Windows, UNIX/Linux or Mac OS X (PowerPC and Intel). Any platform for which Java 5 is available can
run LinkByLink. The software and the user\'s manual are available in English
and in German.

The results of a website check executed by LinkByLink can be exported in
several formats and can be filtered by regular expressions. The integrated
HTML source code browser helps finding the exact location of an error in
the HTML sources.
Accessing secure websites is supported by a certificate and authentication
manager. The number of parallel connections can be configured globally and
on a per-host basis. Multi-threading ensures an optimum of performance and
makes use of the additional power provided by the new multi-core processors.
A more detailed feature list is available on the LinkByLink homepage.

LinkByLink is available as Standard Edition and as Pro Edition.
The Pro Edition offers numerous additional features. A validating parser
is included, which verifies the structure of your HTML. The console mode
without a graphical user interface is ideal for automated tests.
Additionally results can be stored in an SQL database or can automatically
be forwarded by email. The HTTP communication can be recorded in order to
analyze general communication problems.

Here are some key features of "LinkByLink":