CoinGecko is cryptocurrency ranking and evaluation site that breaks down quantitative and qualitative data for a number of different metrics. The metrics used include items such as Twitter followers, Reddit subscribers, coin community, the cost of a 51% attack, the number of developers working on the coin and much more to provide an overall score of the coin and a rating for each category.
CoinGecko team feels that there is no proper quantitative way in trying to measure the worth of a coin. Current approaches to doing altcoin valuation mostly revolves around using market capitalization, a metric that is very easily manipulated by pre-mined coins.
CoinGecko aims to collect all the data required to quantitatively and qualitatively rank the potential of an altcoin. Service plans to benchmark the coins based on own algorithm to determine how valuable a coin is compared to its peers.
Now a detailed analysis of IMPL coin is also available at CoinGecko: