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Plasmonrulers are an emerging concept in which the strong near-field couplingof plasmon nanoantenna elements is employed to obtain structural informationat the nanoscale. Here, we combine nanoplasmonics and nanomagnetismto conceptualize a magnetoplasmonic dimer nanoantenna that would beable to report nanoscale distances while optimizing its own spatialorientation. The latter constitutes an active operation in which adynamically optimized optical response per measured unit length allowsfor the measurement of small and large nanoscale distances with about2 orders of magnitude higher precision than current state-of-the-artplasmon rulers. We further propose a concept to optically measurethe nanoscale response to the controlled application of force witha magnetic field. [ABSTRACT FROM AUTHOR]