JustCite is now JustisOne.
JustisOne is a multi-source legal search engine and citator. It is provider-neutral and links to content from a range of publishers and includes links to full-text resources in leading online legal resources including BAILII, LexisLibrary, Westlaw, and more.
JustCite and Justis were merged early in 2018. If you have used these resources before then you will see the similarities, and also the differences. Below is an instructional video, as provided by Justis, to learn more: