Which is better at verifying that a conference is reliable: Scopus, IEEE Xplore or DBLP?
Anyone who is reasonably experienced in your field (i.e., anyone who might hire you) will know which venues are "relevant".  They won't base this on IEEE Xplore, Scopus, or DBLP, but on their own knowledge of the field.

Hopefully, anyone who would hire you will also know enough to evaluate your work directly to some extent, rather than relying on the reputation of the venue as a proxy for the value of the work itself.