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Por que las imagenes sobredimensionadas o infradimensionadas en una web son preocupantes, a que afectan y a partir de que ratio se deben optimizar para mejorar posicionamiento y experiencia de usuarios. Infradimensionadas se ven pixeladas y dan mala imagen. Sobredimensionadas aumentan la carga y ralentizan la web tanto por tráfico como por consumo de memoria en el navegador
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