Lite, flexible and efficient crawling software which can find broken links, audit redirects, analyze meta data, discover duplicate content, and extract data. The free version can crawl up to 500 pages while the paid version costs £99.00 per year.
Search news website founded in June of 1997 by Danny Sullivan after a positive response to a guide he published in April of 1996 titled A Webmaster's Guide To Search Engines.
German enterprise software company founded in 2005 by Marcus Tober. It provides interactive tools to see search ranking trends, linking information and social media metrics.
Bill Slawski's blog which analyzes search and information retrieval patents in an attempt to better understand search technology and the future of web search.
Informational guide about how search spider programs interact with publisher websites. The guide was initially hosted by WebCrawler in 1995 but moved to the current domain in 2000.