Textual content still dominates the Web. The linguistic quality of textual content—correct spelling, terminology, grammar and style—is of the utmost importance for various content-related processes. Search engines and Machine Translation systems, for example, become more accurate if they operate on high-quality content. Given the volume of content on the Web, automation is important for linguistic quality management. The presentation will address LanguageTool, an adaptable open-source tool that has implemented support for the currently drafted ITS 2.0 specification. It will focus on the experience of adapting LanguageTool in a real-world scenario (examples will be drawn from Russian and English) and using it for checking compliance with governmental regulations like the German BITV2.