LinkChecker is a free, GPL licensed website validator. It checks links in web documents or full websites.
Features:
- Recursive and multithreaded checking and site crawling.
- Output in colored or normal text, HTML, SQL, CSV, XML or a sitemap graph in different formats.
- HTTP/1.1, HTTPS, FTP, mailto:, news:, nntp:, Telnet and local file links support.
- Restriction of link checking with regular expression filters for URLs.
- Proxy support.
- Username/password authorization for HTTP and FTP and Telnet.
- Honors robots.txt exclusion protocol.
- Cookie support.
- HTML5 support.
- Plugin support allowing custom page checks. Currently available are HTML and CSS syntax checks, Antivirus checks, and more.
- Different interfaces: command line, GUI and web interface.
