Right now in terms of cryptocurrency the bitcoin already dominated the whole crypto because this is the first of there is no bitcoin there are no altcoins too just that simple. Before Bitcoin is not really popular but still, there are some people supporting this coin because they see the potential of it to make a lot of improvements by the time goes by it comes to its biggest hit and this is the highest marker price it reaches many people immediately getting rich because they trust and hold those coins some of them ignored the use of it and right now regrets in life that they are one of the millionaires.
Well as new altcoins starts to flourish the dominance of bitcoin will decrease. As long as it continues, dominance on the other hand will decrease but that doesn't matter. What matters is that we all know that bitcoin will continue to increase and it is still the main asset to be held.
Creation of new altcoins won't that be that factor for the bitcoin to decrease its dominance, unless people start selling their bitcoins just to buy a shit, and for the time now? who would sell their bitcoin for new coins? Maybe there will be a decrease in bitcoin dominance when its knights start to show off naming Ethereum, XRP and LTC but I don't know I still think that bitcoin will be on top dominating the market forever 
Nothing to worry about when it is above 50%.
Because of the altcoins, the people get to cut their attention even tho they know the use and profit of the bitcoin that will bring to them still they are supporting other coins. Why? Because some of them trusted the use or the altcoins that could be become the highest market income like the bitcoin too.
as what you said CoinMarketCap and CryptoCompare and many more.
I believe that people here will not need to use or even try your service,also you are a newbie so expect a second thought of believing you.
Anyway let others prove here when they had already use your site.
Even there is no platform we already know that bitcoin already dominated the whole cryptocurrency because this is the first and it has the highest market price right now but still what if sooner or later there is a new competitor no one knows.
Bitcoin's dominance would be probably close to 100% if we were to exclude all the useless shitcoins and tokens from these crypto rankings lists. I'm personally not concerned at all about the % calculated anywhere - whatever happens, we all know BTC is almost always needed in the end.
Right, shitcoin is shitcoin anyways, and one of the problem with these supposedly altcoin that has balloon their marketcap like XRP is that it can affect bitcoin dominance. But no one care, at the end it will still be bitcoin that will remain on the top of the food chain.Well as new altcoins starts to flourish the dominance of bitcoin will decrease. As long as it continues, dominance on the other hand will decrease but that doesn't matter. What matters is that we all know that bitcoin will continue to increase and it is still the main asset to be held.
Nothing to worry about when it is above 50%.
Because of the altcoins, the people get to cut their attention even tho they know the use and profit of the bitcoin that will bring to them still they are supporting other coins. Why? Because some of them trusted the use or the altcoins that could be become the highest market income like the bitcoin too.
Bitcoindominance.com, a new tool that suggests some other factors to contemplate before calculating a cryptocurrency dominance in the market. Presently, Coinmarketcap, the oldest and biggest market capitalization symbol highlights the bitcoin dominance as 62.3 percent whereas, the new tool shows it as 79.18 percent. The Bitcoin dominance tool removes a stable coin from the list while calculating #BTC dominance. To know the actual fact, read more at https://coinpedia.org/news/real-bitcoin-dominance-index-nearly-80-percent-bitcoindominance/
Why do we need to use this tools when there are already too many existing platform like this?as what you said CoinMarketCap and CryptoCompare and many more.
I believe that people here will not need to use or even try your service,also you are a newbie so expect a second thought of believing you.
Anyway let others prove here when they had already use your site.
Even there is no platform we already know that bitcoin already dominated the whole cryptocurrency because this is the first and it has the highest market price right now but still what if sooner or later there is a new competitor no one knows.