DEF delivery with the diesel drop
Modern diesel aftertreatment needs DEF. Fleets lose time when the diesel vendor does not handle DEF and the truck goes hunting for jugs.

Keep it on the same stop when you can
A distributor who lists DEF can often bring totes or a metered drop with the diesel. Ask the package size and the storage they expect on site. DEF has its own handling limits in heat and cold, and the distributor should say what they will deliver.
Search DEF when that is the product you are short. If you need diesel too, write the gallons of each in the notes.
What the rank is checking
Coverage of the ZIP, the DEF flag on the listing, distance, and the quality of the profile. A featured label does not move the numbered list.
Questions
Is DEF a fuel?
It is a diesel exhaust fluid, not a combustible fuel. Fleets buy it beside diesel, so Bulk Fueling lists it as a product distributors deliver.
Can I store a tote outside?
Ask the distributor. Temperature and shelf life are part of their delivery advice, and they vary by product and season.