You cannot take it online from home. When people use the term Online DSST Test, that means its online
at the test center. (as opposed to a pen & paper test that first has to be mailed to the scoring center)
oops... The one I gave you says they only give the test to enrolled students.
Check out that link, there are other test centers in NYC (some in Brooklyn). Hope you find one that your comfortable with.
9629
FORDHAM UNIVERSITY
113 WEST 60TH STREET
NEW YORK, NY 10023-7484
212-636-6372
FORDHAM.EDU
Institutions that administer DSSTs 8636
FORDHAM UNIVERSITY
441 FORDHAM RD
BRONX, NY 10458
718-817-4600
FORDHAM.EDU
9092
GAMLA COLLEGE
1213 ELM AVENUE
BROOKLYN, NY 11230
718-339-4747, x114