# Zuko — Conversion Optimization

Zuko by Zuko Analytics Ltd holds a panel rating of 2/5 from 6 AI judges (category median 2/5), as of 2026-10-21. Provenance: provenance unknown; sovereignty: not determined.

- Vendor: Zuko Analytics Ltd (https://zuko.io)
- Category: [Conversion Optimization](https://whats-best.ai/software/conversion-optimization.md)
- Provenance (editorial classification): provenance unknown
- Canonical page: https://whats-best.ai/software/conversion-optimization/zuko
- Alternatives: https://whats-best.ai/software/conversion-optimization/zuko/alternatives ([markdown](https://whats-best.ai/software/conversion-optimization/zuko/alternatives.md))
- Data as of: 2026-10-21 · evaluated 2026-10-21 · oldest source captured 2026-10-20

**AI-generated.** Every score, rationale and verdict here is written by a panel of AI judges from public evidence — an analysis, not a hands-on test. Every fact quotes the vendor page it was read from. No score can be bought. How scores are made: https://whats-best.ai/methodology

## At a glance

- Vendor: Zuko Analytics Ltd
- Headquarters: Not stated on the vendor’s pages as of 20 Oct 2026
- Data hosting: Default not stated; pages mention Ireland [S3]
- Free plan: Not stated on the vendor’s pages as of 20 Oct 2026

## The panel's verdict

Zuko Analytics, a form analytics and session replay platform operated by Formisimo Ltd, is strongest on measurement: data and integrations scored a uniform 7, with a Sessions API returning raw, unaggregated visitor sessions, and performance impact scored 5-6 on published figures — a 15 kb script with 6 kb transferred from an AWS CDN. It is weakest as an experiment engine: experimentation scope ranged 0-2 because the only documented experiment-related capability is the ABlyft integration, which measures tests delivered by another product, and statistical rigour ranged 0-1, as published benchmark relationships carry named dataset sizes but we found no public information on the method behind them. Consent and tracking scored 2-3: the first-party cookie is documented, but securing consents rests on the client as data controller. Sovereignty scored a uniform 4, pairing AWS hosting in the Republic of Ireland with a contracting entity in England and Wales. Scores sat close together on every criterion, and we found no public information on plan prices.

**Speaks for it:**
- A Sessions API returns raw, unaggregated visitor sessions including custom attributes and events, with Python example code published
- Data export paths include a data warehouse, a dedicated Google Data Studio connector, and Power BI, Domo, Tableau and Segment connectors
- The tracking script is published at 15 kb with 6 kb transferred from an AWS CDN, written in vanilla JavaScript, with self-hosting available
- Data is hosted on AWS in the Republic of Ireland, encrypted with AES-256, with a Data Processing Agreement available
- The cookies statement documents one first-party cookie, zukoVisitorId, stored on the client's own domain holding an anonymised visitor ID

**Held against it:**
- The only experiment-related capability documented is the ABlyft integration, which measures tests delivered by another product
- We found no public information on a statistical method, intervals or sample-size guidance behind the published benchmark relationships
- Securing cookie consents sits with the client as data controller, and we found no public information on what the script does before consent or on consent management platform integrations
- The terms permit subcontractors, and we found no published list of who they are
- The API key is provisioned by contacting support, and we found no public information on API rate limits

**Best for:**
- You need field-level form analytics with raw session data flowing into your own warehouse or BI tools
- You run experiments in ABlyft and want a measurement layer comparing form behaviour across test variants
- You deploy compliance-sensitive tracking and value a documented small first-party script, a self-hosting option, AWS hosting in the Republic of Ireland and an available DPA
- You operate forms on Shopify, Jotform, Hubspot or similar providers and want benchmark context with stated dataset sizes

**Avoid if:**
- You need a single platform that builds and delivers the experiments themselves
- Your test read-outs must rest on documented statistical methods, intervals and sample-size guidance
- You expect the vendor, rather than your own compliance setup as data controller, to carry cookie-consent enforcement
- You require an EU contracting entity or a published subprocessor list as a procurement condition

## Scores by judge and criterion

Scores out of 5, each judge scoring independently against the published rubric (v1). "n/r" = not rated: the vendor publishes no price.

| Criterion | The Growth Lead | The E-Commerce Manager | The Product Engineer | The CRO Consultant | The Data Protection Officer | The Skeptic |
| --- | --- | --- | --- | --- | --- | --- |
| Experiment types & delivery | 0.5/5 | 0.5/5 | 0.5/5 | 0/5 | 1/5 | 0.5/5 |
| Statistical method & guardrails | 0.5/5 | 0/5 | 0.5/5 | 0/5 | 0.5/5 | 0.5/5 |
| Consent & visitor tracking | 1/5 | 1/5 | 1/5 | 1/5 | 1.5/5 | 1/5 |
| Snippet performance & flicker | 2.5/5 | 3/5 | 3/5 | 3/5 | 3/5 | 3/5 |
| Analytics, data export & integrations | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 | 3.5/5 |
| European sovereignty | 2/5 | 2/5 | 2/5 | 2/5 | 2/5 | 2/5 |
| Pricing transparency | n/r | n/r | n/r | n/r | n/r | n/r |
| **Weighted verdict** | **1.5/5** | **2/5** | **2/5** | **1.5/5** | **2/5** | **2/5** |

### The judges

- **The Growth Lead** (v1.0): Runs the testing programme for a German marketing team and reports uplift to the board. Wants a visual editor the team can use without a developer, targeting that goes beyond the URL, and results she can defend when finance asks where the promised revenue went.
- **The E-Commerce Manager** (v1.0): Owns a shop where a tenth of a second of load time shows up in the conversion rate. Wants personalisation that can be tested against a control, a snippet that does not flicker the product page, and a traffic-based price that does not jump a tier every December.
- **The Product Engineer** (v1.0): Ships experiments behind feature flags and would rather not ship a third-party script at all. Wants server-side SDKs for the stack in use, edge delivery, metrics computed in the warehouse the team already trusts, and an API good enough to build internal tooling on.
- **The CRO Consultant** (v1.0): Sets up testing programmes for several clients and has to recommend a platform each can afford and defend. Reads for multi-project management, clean analytics integration, a consent setup a client's DPO will sign off, and a traffic metric she can estimate before the contract.
- **The Data Protection Officer** (v1.0): Has to answer whether the test script may run before the consent banner is answered, and usually finds the vendor has not said. Wants the storage keys listed, a documented consent-pending mode, visitor data processed in the EU, and a published subprocessor list that includes the CDN.
- **The Skeptic** (v1.0): A statistician who has watched too many "winners" regress to zero. Reads for the method by name, what stops a team from peeking, sample ratio mismatch checks and multiple-comparison corrections — and treats a "probability to beat" without documented assumptions as marketing.

## European sovereignty — proven facts

Built only from facts on the vendor's own pages; a dimension we could not prove is left open, never scored as zero. Headline: not determined.

| Dimension | Finding | Points | Source |
|---|---|---|---|
| Legal entity | Not determined | — | — |
| Ownership | Not determined | — | — |
| Data residency | Not determined | — | — |
| Subprocessors | Not determined | — | — |

## Key facts

Each fact is the vendor's own statement, cited to the source page it was read from ([S*n*] → Sources).

**Compliance**
- Breach notification: yes [S3]
- Confidentiality: yes [S2]
- Consent responsibility: client as data controller [S7]
- Data details on request: yes [S2]
- DPA: yes [S3]
- DPA: processor · controller · yes [S2]
- Encryption: yes · yes [S3]
- Encryption: yes · yes [S2]
- GDPR: UK GDPR [S2]
- Incident response: yes [S3]
- MFA access control: yes · yes [S3]
- Patent: US-10198415-B2 [S1]
- Patent: US-10198415-B2 [S8]
- Patent: US-10198415-B2 [S9]
- Pii identifiers: yes · no [S2]
- Security docs: Security & Privacy Overview page linked in footer [S6]
- Subprocessors: yes [S2]
- US patent: US-10198415-B2 [S10]
- Vendor staff access: /c product support · audit · maintenance · enhancement [S2]
- Vpc encryption standard: AES-256 · secure VPC within AWS [S3]

**Data**
- Post cancellation availability: 30 [S2]
- Retention after termination: 12 · yes [S3]

**Hosting**
- Provider region: EEA - Republic of Ireland · AWS [S3]

**Integrations**
- Ablyft data: filter data · comparative reports · custom attributes [S4]
- Ablyft native: native integration · ablyft [S4]
- Ablyft requirements: ABlyft account · Zuko account [S4]
- Ablyft setup: toggle in ABlyft Integration section, Zuko section [S4]
- API documentation: yes [S10]
- API key via support: API key obtained by contacting support@zuko.io [S10]
- Bi tools: Google Data Studio · Power BI · Domo · Tableau [S10]
- Data warehouse export: yes [S10]
- Example code python: Python · yes [S10]
- Google data studio guide: yes [S10]
- Implementation: JavaScript_code_snippets [S2]
- Segment connector: Segment.io · yes [S10]
- Works with: Jotform · Shopify · Hubspot · Magento · Pardot · Wordpress · BigCommerce [S1]

**Legal**
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S1]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S5]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S7]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S4]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S6]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S8]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S9]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S10]
- Address: Colony, 5 Piccadilly Place, Manchester, M1 3BR [S11]
- Applicable law: England and Wales · yes [S2]
- Company: Formisimo Ltd · England and Wales · 08859680 [S6]
- Company: England and Wales · Formisimo Ltd · 08859680 [S10]
- Company name: Formisimo Ltd · England and Wales · 08859680 [S7]
- Entity: Formisimo Ltd · England and Wales · 08859680 [S1]
- Entity: England and Wales · Formisimo Ltd · 08859680 [S5]
- Entity: Formisimo Ltd · England and Wales · 08859680 [S4]
- Entity: Formisimo Ltd · England and Wales · 08859680 [S8]
- Entity: England and Wales · Formisimo Ltd · 08859680 [S11]
- Legal entity: Formisimo Ltd · England and Wales · 08859680 [S9]
- Patent: US-10198415-B2 [S2]
- Patent: US-10198415-B2 [S7]
- Patent: US-10198415-B2 [S4]
- Patent: US-10198415-B2 [S6]
- Patent: US-10198415-B2 [S11]
- Provider: Colony, 5 Piccadilly Place, Manchester, M1 3BR · Formisimo Ltd · England and Wales · 08859680 [S2]
- Role controller: information directly supplied by the client [S3]
- Role processor: processor · end-user behavioural data on client forms [S3]
- VAT number: GB181252425 [S1]
- VAT number: GB181252425 [S2]
- VAT number: GB181252425 [S5]
- VAT number: GB181252425 [S7]
- VAT number: GB181252425 [S4]
- VAT number: GB181252425 [S6]
- VAT number: GB181252425 [S8]
- VAT number: GB181252425 [S9]
- VAT number: GB181252425 [S10]
- VAT number: GB181252425 [S11]

**Pricing**
- Billing periods: monthly_rolling · annual [S2]
- Free healthcheck: free form healthcheck [S6]
- Free trial: yes · no [S1]
- Free trial: yes · yes [S5]
- Free trial: all features · yes [S4]
- Free trial: free trial includes all features [S8]
- Free trial all features: yes · yes [S11]
- Paid plan: yes [S2]
- Price change notice: next_billing_date · yes [S2]

**Product**
- Ablyft capabilities: View ABlyft test variant form behaviour data in Zuko and analyse variant impact on performance [S5]
- Ablyft integration: yes [S5]
- Ablyft setup: one click in ABlyft · yes [S5]
- Activity tracking code: Activity Tracking Code tracks form views and field interactions [S8]
- Agent score: Zuko Agent Score for AI agents completing forms [S1]
- Aggregated data use: yes [S2]
- AI summaries: AI-powered summaries of form abandonment [S1]
- Analytics data collection: /c keypresses · mouse clicks · key_type · no [S2]
- API data scope: yes · yes [S10]
- Autofill completion: 30.2 · 62.2 [S6]
- Benchmark dataset scale: 739 · 93 · 60 · 38 [S6]
- Benchmark period: Form Benchmarking Research · January 2022 - April 2025 [S6]
- Benchmarking form types: Benchmarking covers application, purchase and registration form types [S9]
- Benchmarking sections: About the Data · Industry Benchmarking · Form Type Benchmarking [S9]
- Capabilities: field-level abandonment, corrections, validation errors, interaction times and user journeys [S6]
- Checkout duration: 159 · 239 · 227 · 299 [S6]
- Checkout field abandonment: 1.2 · 3.5 · 3.1 · 3.5 · 3.7 · 3.4 · 2 · 7.9 [S6]
- Completion metrics correlation: starter to completion · view to completion · positive [S9]
- Completion tracking code: Completion Tracking Code tracks successful form completions [S8]
- Cookie client domain: yes [S3]
- Customer support access: /c code snippets · username_password_web_app_access [S2]
- Description: Form analytics and session replay platform [S1]
- Device conversion: 47.53 · 49.31 · 54.48 [S6]
- Discount code completion: 35 · 64 · 94 [S6]
- Field count correlation: More fields on a form correlate with longer completion time [S9]
- Field level data: yes [S1]
- Field level metrics: 3.5 · 0.28 · 5.27 · 6.5 · 0.34 · 6.41 · 5 · 0.31 · 6.28 · name · email · password · phone · postcode · address · 7.4 · 0.39 · 4.32 · 7.2 · 0.65 · 10.5 · 3.8 · 0.28 · 4.82 [S6]
- Field research period: 1362 · Field-Level Research · May 2023 - April 2024 [S6]
- Field returns abandonment: suspended/abandoned session duration · field returns · positive [S9]
- Field returns completion: completion rate · field returns · negative [S9]
- First party cookie: zukoVisitorId · first-party [S3]
- Form analytics: Analyses impact of test variants on form user behaviour and conversion [S4]
- Form builder hosting: /c embed_on_own_website · hosted_URL [S2]
- Form statistics page: Online Form Statistics: Conversion, Abandonment and UX Benchmarks [S6]
- Formtype benchmarks: 14.5 · 47.4 · 40 · 54.4 · 28.6 · 46.4 · 37.7 · 51.6 · 46.6 · 60.7 [S6]
- Free trial: yes [S7]
- Free trial all features: yes · yes [S10]
- Gds audience segments: GDS reports can filter by Zuko custom audience segments [S11]
- Gds connector: dedicated Google Data Studio connector [S11]
- Gds custom events: Custom event data such as error messages viewable in GDS [S11]
- Gds multiple forms: yes [S11]
- Gds reporting flexibility: Users can replicate Zuko dashboard reports or create custom reports in Google Data Studio [S11]
- Gtm support: yes [S8]
- Industry benchmarks: 16.1 · 36.3 · 29.7 · 56.9 · 35.8 · 51 · 41.3 · 55.8 · 35.7 · 58.4 [S6]
- Lazy firing: yes [S8]
- Licence scope: no [S2]
- Multi step forms: multi-step forms across URLs tracked as chained forms with different slugs [S8]
- Narrow targeting: yes [S8]
- No pii collection: no [S3]
- No third party libraries: no [S3]
- Products: /c Zuko Analytics · Zuko Form Builder [S2]
- Publicity rights: yes [S2]
- Questions completion rate: completion rate · number of questions · negative [S9]
- Questions starter completion: starter to completion rate · number of questions · negative [S9]
- Self hosting: yes [S3]
- Session replay: anonymised_session_replay · yes · yes [S2]
- Sessions API: Sessions API lets you extract and analyse form analytics data outside the Zuko app [S10]
- Setup tags: 2 [S1]
- Shopify: yes [S4]
- Shopify app: yes [S1]
- Shopify checkout app: dedicated Shopify Checkout Analytics App [S6]
- Shopify checkout completion: 37.9 · 56.5 · 39.1 · 53.5 · 38.5 · 56.1 [S6]
- Shopify research period: Shopify Checkout Research · July 2025 - March 2026 [S6]
- Slug domain identification: data is identified by slug and domain, not URL [S8]
- Spa support: yes [S8]
- Starter to completion benchmark: 51.7 · all forms · starter_to_completion [S6]
- Time completion correlation: completion rate · time to complete · negative [S9]
- Tracked events: field focus and blur · anonymized keystroke events · interaction timing and submission rates [S3]
- Tracking code size: AWS · 15 · 6 [S3]
- Tracking codes: 2 [S8]
- Tracking cookie purpose: store unique anonymised visitor ID, track form completions and returning visitors [S7]
- Tracking cookie type: first_party [S7]
- Tracking method: lightweight optimized vanilla JavaScript tracking of form interactions (field clicks, keypresses, form submissions) [S3]
- Trial: yes · yes [S2]
- View to completion benchmark: 34.6 · all forms · view_to_completion [S6]
- Visit allowance: monthly visit allowance exists; loading Zuko counts towards it [S8]

**Support**
- Documentation: Documentation · Technical Information · Security & Privacy Overview [S1]
- Documentation: integrations.shopify · Zuko for Shopify · ], : null , [S5]
- Gds setup guide: Setup guide available for Zuko GDS connector [S11]
- Sales email: sales@zuko.io [S4]
- Support email: support@zuko.io [S4]

## Questions

### Is Zuko European?

Not determined: the vendor’s pages as captured do not say where Zuko is based.

### Where does Zuko store data?

The default storage location for customer data is not stated on the vendor’s pages as of 20 Oct 2026. The vendor’s pages mention Ireland as hosting location, per [the vendor’s page captured 20 Oct 2026](https://whats-best.ai/evidence/9231).

### Does Zuko have a free plan?

Not stated on the vendor’s pages as of 20 Oct 2026.

### What are the best alternatives to Zuko?

As of 21 Oct 2026, the panel rates [GrowthBook (3.5/5)](https://whats-best.ai/software/conversion-optimization/growthbook), [Convert Experiences (3.5/5)](https://whats-best.ai/software/conversion-optimization/convert-experiences) and [Webtrends Optimize (3/5)](https://whats-best.ai/software/conversion-optimization/webtrends-optimize) highest among the other 31 Conversion Optimization products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [Webtrends Optimize](https://whats-best.ai/software/conversion-optimization/webtrends-optimize) (UK / wider Europe). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). The full list, with European products first: [Zuko alternatives](https://whats-best.ai/software/conversion-optimization/zuko/alternatives).

## What this page leaves out

- 11 compliance facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 7 pricing facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 6 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 5 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material.
- 1 hosting fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 1 support fact could not be confirmed on the vendor’s page as captured and was left out of this page and of the panel’s material.
- 3 sovereignty dimensions could not be confirmed on the vendor’s own pages and are shown as unknown.

## Sources

- [S1] Vendor page: https://zuko.io (checked 2026-10-20)
- [S2] Terms of service — found from the homepage: https://www.zuko.io/terms-and-conditions (checked 2026-10-20)
- [S3] Privacy policy — found from the homepage: https://www.zuko.io/zuko-analytics-data-privacy-and-security-overview (checked 2026-10-20)
- [S4] Experiment types & delivery — found from sitemap: https://www.zuko.io/guides/track-your-ablyft-experiments-in-zuko (checked 2026-10-20)
- [S5] Experiment types & delivery — found from sitemap: https://www.zuko.io/zuko-integrations/integrate-your-ablyft-experiments-with-zuko (checked 2026-10-20)
- [S6] Statistical method & guardrails — found from sitemap: https://www.zuko.io/form-statistics (checked 2026-10-20)
- [S7] Consent & visitor tracking — found from sitemap: https://www.zuko.io/zuko-cookies-statement (checked 2026-10-20)
- [S8] Consent & visitor tracking — found from sitemap: https://www.zuko.io/guides/introduction-to-the-zuko-tracking-codes (checked 2026-10-20)
- [S9] Snippet performance & flicker — found from sitemap: https://www.zuko.io/benchmarking/form-performance (checked 2026-10-20)
- [S10] Analytics, data export & integrations — found from sitemap: https://www.zuko.io/guides/export-data-using-zukos-api (checked 2026-10-20)
- [S11] Analytics, data export & integrations — found from sitemap: https://www.zuko.io/zuko-integrations/visualize-zuko-data-in-google-data-studio (checked 2026-10-20)

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Cite as: whats-best.ai, "Zuko — Conversion Optimization", AI panel analysis, as of 2026-10-21. https://whats-best.ai/software/conversion-optimization/zuko

Corrections: https://whats-best.ai/correct/875?target=page