SISTRIX

SISTRIX is a German software company that provides online marketing analytics tools focused on search engine optimization (SEO). Based in Bonn, it offers the SISTRIX Toolbox, a web-based platform used by SEO professionals to analyze and monitor website performance in organic search results.

The Toolbox centers on the Visibility Index, a composite metric intended to quantify a domain's overall visibility in Google search results over time. The platform includes modules for Keywords, Domains, and Links, to support keyword research, competitive benchmarking, and backlink analysis. Data are collected from Google search results across multiple countries and languages and are complemented by historical data to enable trend analysis. The tool supports SERP feature tracking, competitor comparisons, and regular reporting.

SISTRIX serves a global user base, including SEO agencies, in-house marketing teams, and digital publishers. It is used for keyword research, competitive benchmarking, backlink analysis, site audits, and monitoring changes in search visibility. As a subscription-based service, SISTRIX provides ongoing updates and reporting capabilities to help users optimize their search presence.

Overall, SISTRIX is widely recognized in the SEO community for its visibility index and for providing a long-running, data-driven view of search performance across markets.