Can someone please tell me whats the stratum I should use for the antminers D3 and L3 ? I searched all over the website of mining pool , but just find the ports of the coins or algos!

This is a PPLNS pool - you don't get anything until the pool finds a block, because we don't have a huge hash rate this was about every 8 hours, but with the new difficulty it should be around every 15 hours. Variance (pool luck) means that the 15 hours is an AVERAGE - at present we are having poor luck, but if you look at the last found blocks you will see that the intervals were 4+ hours, 10 hours, 19 hours and 2 hours all when the 'expected interval was 7-8 hours.