The 1&1 brand, founded in 1998 (Germany), from 33 sister brands and 3453 competing brands. 1&1's notoriety arose from exemplary management which optimizes product quality and client satisfaction, which in turn generate financial performance, and therefore, stock performance. Being a Popular brand online is assessed based on the evolution of worldwide Web searches over the last five years.

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The following interest graph for 1&1 shows the evolution of worldwide Web searches in the last five years. The graph shows the evolution of 1&1 search rates over time, with a value of 100 indicating the month when it was highest.
Evolution of interest in the search “1&1” (Google Trends)
Sources: Google Trends and Allbrands.markets
Compare the 5-year Web notoriety graph with the 5-year market price graph:
Notoriety -> Market prices