Several times Indeed has emailed me "new" job postings I might be interested in only to find they OFTEN don't even apply to my interests. A few times Recruiters contacted me having seen my resume on Indeed, but so far I haven't received anything worth looking into or I've come to find an engaging description has been posted for months and likely filled already.
My recommendation? Sure, look through the jobs posted, but if you really want to know if it's even still open, go to the actual Website of the employer and apply there.