Arch Search Engine: PHP Web Search Script

Key Features

• Arch is an open source extension of Apache Nutch (a popular, highly scalable general purpose search engine) for intranet search.
• Not happy with your corporate search engine?
• No surprise, very few people are.
• Try Arch, blind test evaluation tools are included.
• In addition to excellent search quality, Arch has many features critical for corporate environments, such as document level security.

Technical Specifications

• **Publisher:** https://www.atnf.csiro.au/computing/software/arch/
• **License:** Freeware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Internet / Search Tools