Now in beta — free for early publishers. Join the waitlist
Prebid optimization, managed by experiments

Continuous Prebid optimization without revenue share

BidTune watches your live auction, finds safe revenue tests, and deploys the winners inside your guardrails. No stack migration. No bidder lock-in. No percentage of revenue.

Built by the team behind BuySellAds. Powering ads on developer sites since 2008.
JSONLint live proof
Guardrails on
Active winner

Header floor optimization

+13.0%

Revenue lift observed against holdback traffic. Ready for promotion under current caps.

Confidence97%
Traffic cap25%
StatusPromote
Loser caught: sidebar floor raise would have reduced revenue by 41.7%.
BuySellAdsCarbon AdsJSONLintPrebid.js
Measured on live traffic

JSONLint beta proof from Prebid traffic

The autonomous researcher generated 23 optimization hypotheses, tested them as Bayesian experiments, and only promoted changes with evidence.

23
hypotheses tested
8
winners found
10
losers stopped
317K
sessions measured
ExperimentResultLiftAction
Sonobi/OpenX exclusionWinner+31.5%Promoted
Bid caching for repeat impressionsWinner+17.3%Promoted
Header floor optimizationWinner+13.0%Promoted
Sidebar floor raiseLoser-41.7%Killed
How it works

Autonomous research, constrained execution

BidTune is built around a tight loop: observe the auction, propose a test, measure against holdback traffic, then ship only when the evidence clears your rules.

1

Observe

Bid-level telemetry starts without changing your auction.

2

Research

The AI researcher proposes experiments from live patterns.

3

Experiment

Bayesian tests split traffic and stop when evidence is clear.

4

Deploy

Winners ship inside your caps. Losers never reach full traffic.

Safety model

You choose which changes make it to production

Autonomous does not mean uncontrolled. BidTune keeps each recommendation tied to scope, measurement state, and rollback evidence.

S

Scope

Site, geo, ad unit, and bidder limits are applied before launch.

Pass
D

Decision

Observed, estimated, and projected metrics stay labeled.

Pass
R

Rollback

Every change keeps an audit trail and a fast recovery path.

Pass
Review queue

Ready to promote

GumGum timeout extension

Manual approval mode keeps the final decision with your team.
Flat pricing

$0.03 CPM. No revenue share.

Most managed optimization asks for a percentage of revenue. BidTune charges a fixed CPM because the research loop is automated.

Managed services15-25% of revenue
SaaS tools$0.05-$0.10 CPM
BidTune$0.03 CPM
Common questions

Built for publishers who already run Prebid

Do I have to migrate my stack?

No. BidTune works alongside your existing Prebid.js setup and tests changes against your current demand partners.

What does it cost?

The beta price is a flat $0.03 CPM. No revenue share, no annual commitment, and no percentage of upside.

Can I review changes before they go live?

Yes. Manual approval mode is available, and every experiment keeps a visible diff, result, and rollback path.

Free during beta

Connect your site in minutes. Let experiments find the upside.