One bid for a whole campaign is rarely right everywhere. A source that converts well in Germany may be worth twice as much as the same source in another country. The Source Bid Optimizer lets advertisers set separate bids per traffic source and country.
What it adds
- Bids per source and country, so good sources get more and weak ones get less.
- Bid-too-low warnings: advertisers see when a bid is too low to win, and by how much.
- Shadow mode to test before it changes real bids.
- Works with your rules, so automated rules and per-source bids don't fight.
How advertisers use it
- Run the campaign with one base bid for a few days.
- Open the placement or source report and sort by cost per result.
- Raise bids on sources that convert below target; lower them on sources that cost too much.
- Check the bid-too-low warnings and raise bids where a good source is being lost.
- Review weekly. Traffic changes, and bids should follow.
For operators
It costs $1,990 one time and works with the DSP. It also cuts support tickets: much of "why don't I get traffic from this source?" is answered by the bid-too-low warning itself.
Related: Zero-bid alerts and bid recommendations · Blacklists and placement controls
Nov 13, 2026