Yaystack

Yaystack scores a client site against 60+ Answer Engine Optimization factors in under 60 seconds and returns a 0-100 score with prioritized fixes, which means an agency can sell an AEO diagnostic before it has built any AEO delivery capacity. At CHF 25/mo Standard (200 credits, 10 tracked URLs, 10 competitors per domain) or CHF 39/mo Max (800 credits, unlimited URLs), the tool cost sits far below the $499/mo productized audit fee, so the margin question is delivery time, not software spend. The strategic risk is score variance: the pricing data flags a 67 ± 10 range, so agencies that promise a fixed number will churn clients the model itself cannot hold steady.

Yaystack's own pricing notes a 67 ± 10 variance range, so the same client URL can return materially different scores between runs. Agencies that sell AEO retainers on a fixed number ("we will get you to 80") inherit that variance as a delivery risk. The buffer model reframes the deliverable: sell the direction of travel across the six categories (structured data, content clarity, E-E-A-T, entity authority, citation potential, conversational queries) rather than a single target score. A practical setup: run the free audit first to baseline, then on Standard at CHF 25/mo track up to 10 URLs and 10 competitors per domain, and report a 90-day rolling average instead of a point-in-time figure. The Yaystack AEO Starter Audit at $499/mo with 8h setup and 2h/mo maintenance only holds margin if the monthly deliverable is a trend summary, not a re-audit scramble every time the score dips.

Answer Surface Displacement is the gap between where a client ranks and whether an AI answer engine names them. Rankings can climb while the answer layer routes discovery elsewhere, so the two metrics move independently and sometimes in opposite directions. For agencies, this reframes the retainer: a monthly position report no longer proves value, and clients who see stronger rankings alongside flat or falling inquiries will question the contract before renewal. The practical response is to report citation frequency inside AI-generated answers next to classic rank tracking, then price the work that earns citations (entity coverage, structured data, comparison-ready pages) as its own line item. Near Media documented local businesses gaining AI-driven search visibility while losing phone call conversions, which is exactly the displacement pattern. Search Engine Journal's Q2 2026 data adds a second layer: desktop click-through rates fell while mobile CTR rose at top positions, so device-level traffic forecasts need the same scrutiny. Tools such as AthenaHQ, SE Ranking, and Alli AI now surface AI visibility signals, but the judgment about which surfaces matter for a given client stays with the agency.

Retainer Scope Drift is the tendency for SEO tool output to expand what a client expects without expanding what they pay. A rank tracker, an audit crawler, and an AI visibility checker each produce artifacts that look like deliverables, so clients begin treating every generated report as work owed under the existing retainer. The category is mature and margin-compressed, which makes this drift expensive: the tools cost the same whether an agency sells strategy or sells title-tag edits. Consider the pattern documented in September 2026, where local businesses gained AI-driven search visibility while phone call conversions fell. An agency reporting only improved positions invites a renewal conversation it cannot win, because the client sees rankings rise and revenue stay flat. Agencies that hold margin define the deliverable list before the tool list, then price AEO citation tracking, programmatic page builds, and entity work as separate scopes rather than inclusions.

Adopt Yaystack when you can bill an AEO audit as a retainer add-on to SMB clients and your tracked domain count stays inside the 10-URL Standard ceiling; move to Max at CHF 39/mo only when unlimited URLs and 800 credits are genuinely needed.

Buy SEO tooling only where it feeds a defensible offer (AI content production at scale, programmatic SEO, or entity authority), and price the strategic layer separately from the license cost.

IF your agency already sells SEO or visibility retainers to SMB clients and needs a fast, low-cost way to justify an AEO add-on, THEN Yaystack's CHF 25/mo Standard tier (200 credits, up to 10 tracked URLs, 10 competitors per domain) covers a small book of clients and the sub-60-second audit plus PDF export makes the deliverable cheap to produce. IF you need branded client portals, unlimited competitor benchmarking, or a stable score you can promise in a contract, THEN defer: the Max tier at CHF 39/mo lifts credits to 800 and removes the URL cap but still caps competitors at 10 per domain, and the 67 ± 10 variance range means the same site can score differently across runs.

A productized Answer Engine Optimization retainer that uses Yaystack's 0-100 citation-likelihood scoring to sell and deliver monthly AEO work for SMB clients, priced at $499/mo against a CHF 25/mo tool cost.