What a Retainer Model Actually Costs You
A typical CRO retainer runs $500 to $2,000 per month. Some agencies charge $5,000 or more. Before they run a single test or fix a single element, you have paid the first month.
Here is what you get for that money: a kick-off call, a discovery phase, and a recommendations document. The actual implementation often costs extra. The results, if any, take 60 to 90 days to measure because A/B tests require statistical significance.
The math on this is brutal for early-stage paid traffic. If you are spending $3,000 per month on ads and converting at 1%, a $1,500 retainer adds 50% to your acquisition cost before you see a single improvement.
Retainer contracts lock you in whether or not results materialize. Month two starts regardless of whether month one produced any measurable change. You are paying for access to expertise, not for verified outcomes.
What Per-Fix Pricing Looks Like
The Nebula model inverts this entirely. The diagnostic is free. You paste your URL, Nebula checks 9 structural conversion signals, and you receive a prioritized findings report without signing anything or paying anything.
If you want one of those findings fixed, you purchase a Repair Sprint for $97. Nebula delivers a tailored implementation pack within 48 hours. You or your developer implements it. No ongoing relationship. No second invoice unless you choose to buy another sprint.
- Audit: $0. No signup required.
- Repair Sprint: $97. One prioritized finding. 48-hour delivery.
- Monthly commitment: None.
- Sales call required: No.
Retainer Model vs Per-Fix Model
| Retainer Model | Per-Fix Model (Nebula) | |
|---|---|---|
| Cost | $500--$5,000/month minimum | $0 diagnostic + $97 per repair sprint |
| Commitment | 3--6 month contract common | None. Buy one sprint, stop any time. |
| Time to first finding | 2--4 weeks (discovery + kick-off) | Under 2 minutes (automated audit) |
| Time to first fix | 4--8 weeks | 48 hours after purchase |
| What you get | Monthly reports + strategy sessions | Prioritized findings + implementation pack |
| Results guarantee | None (conversion depends on many variables) | None (same reason, but you pay per result, not per month) |
When a Retainer Makes Sense (and When It Doesn't)
Retainers are not universally bad. They make sense when:
- You have high traffic volume (100,000+ monthly visitors) and need ongoing A/B testing at scale.
- You have an internal team that needs strategic direction from senior practitioners.
- You are running a large ecommerce operation where even a 0.1% lift is worth $50k+ in revenue.
- You need ongoing custom analytics instrumentation across multiple landing pages.
Retainers do not make sense when:
- You are spending under $10,000 per month on ads and need to improve a single landing page.
- You have not yet identified which specific signals are failing on your page.
- You need a fast answer (not a 4-week discovery process).
- Your budget does not absorb a monthly fee before seeing any improvement.
Honest framing: Nebula is not the right tool if you need strategic direction across 12 landing pages with ongoing testing and analytics support. Nebula is the right tool if you need to know exactly what is wrong with a specific page right now, without paying before the diagnosis.
Get a free diagnostic. No retainer required.
Paste your URL. Nebula checks 9 structural conversion signals and returns a prioritized findings report. Free. No signup. No sales call.
$0 for the diagnostic. $97 per Repair Sprint. No monthly commitment.