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.
v9.3 [Aug 10, 2014]
- Parse and check links in PDF files.
- Parse Refresh and Content-Location: HTTP headers for URLs.
- Plugins: PDF and Word checks are now parser plugins (PdfParser, WordParser). Both plugins are not enabled by default since they require third party modules.
- Print a warning for enabled plugins that could not import needed third party modules.
- Treat empty URLs as same as parent URL.
It is a browser add-on which lets you search via your favorite search engine
The WOT add-on is a crowd-sourced enhancement to your browser protection
