WikiTree will connect your autosomal test information to all your blood relatives out to eight degrees of separation—up to sixth great grandparents and out to third cousins. Y-DNA and mtDNA information will be connected to all relatives who might share the DNA with you. DNA information is updated once a day, so you will need to wait a day after posting your test information before it shows up on your ancestors' and relatives' profiles.
See the DNA Features help page.
Another useful page is the DNA Test Connections help page.