Riddle

Traverse my Web, choose a man

To do your job, fit your need.

All laid out, in tidy files;

All await your command.

Caution choose him carefully:

Note his kin, his kind, his king,

His accent heard, see his sense;

Good in one place, not the rest.

Chart his change, your final foot

Falls at my command, it does.

I hold his history in my hand,

As a lingual lord of background checks.

Answer: Dictionary