Accessibility statement
PAYONE is committed to making its website accessible in accordance with the European Accessibility requirements EN 301 549, following the EU directive 2019/882.
To this end, it implements the strategy and actions detailed in its multi-year plan.
This accessibility statement applies to the website https://developer.payone.com/.
Adherence status
The website https://developer.payone.com/ is partially compliant with WCAG 2.2 Double-A (AA) level due to the non-conformities and exemptions listed below.
This statement focuses on the accessibility of the documentation website. To access the accessibility statements for our other PAYONE products, including the Hosted Checkout Page and Hosted Tokenization Page, please visit their corresponding product pages.
Preparation of this accessibility statement
This statement was prepared on 15.4.2026 and updated on 15.4.2026.
Test results
The tool used for the website accessibility audit was an automated web accessibility checker, DynoMapper.
The audit was performed based on WCAAG 2.2 (AA) criteria. Last date run: 08.04.2026.
The DynoMapper tool uses three types of issue categorisation in its results:
- Known problems
- Likely problems
- Potential problems
The tool calculates the results of the audit based only on the identified number of "Known problems" across all audited pages.
The results flagged as "Likely problems" and "Potential problems" are only treated as "notices" for manual auditors due to how error-prone they are in automated testing.
No manual testing was conducted.
The audit was performed on 131 pages of the site.
The reported result of the automated audit, as estimated by the DynoMapper tool, is 100%.
Subdomains of https://developer.payone.com/ were not subject to the accessibility audit (e.g., https://explorer.payone.com/).
Out of 131 audited pages, 130 pages passed all 55 WCAAG 2.2 (AA) criteria.
Inaccessible content
The content listed below is not accessible for the following reasons.
Non-compliance
Several elements of non-compliance are described in this document because they failed the following criteria:
- https://developer.payone.com/de/api-reference
- 1.3.1 Info and Relationships (A)
- 1.4.3 Contrast (Minimum) (AA)
- 2.4.6 Headings and Labels (AA)
- 3.1.1 Language of Page (A)
Content not subject to accessibility obligations
The API Reference page could not be made WCAAG 2.2 (AA) compliant, as that would impair its usability for regular users due to its highly visual and interactive layout. Instead, a reference to an accessible version of the page was provided: https://developer.payone.com/de/api-reference-accessible.
Preparation of this accessibility statement
This statement was prepared on 15.4.2026 and updated on 15.4.2026.
Technologies used for website development:
- dotCMS (Enterprise Content Management System)
- HTML5
- CSS3
- Java
- JavaScript
- Bootstrap
- Web fonts and SVG graphics
Web page tests were performed using the following combinations of user agents and screen readers:
NVDA (NonVisual Desktop Access) screen reader
Tested with:
- Google Chrome (latest stable version at time of testing)
- Microsoft Edge (latest stable version at time of testing)
Testing included:
- Keyboard-only navigation
- Screen reader announcement accuracy
- Landmark structure verification
- Heading hierarchy validation
- Form field labelling and error messaging
- Focus order and visibility
The following tools were used during the evaluation:
Automated and manual testing tools included:
- Dynomapper Accessibility Testing Tool (full website crawl)
- Silktide Accessibility Checker
- NVDA screen reader (manual assistive technology testing)
- Browser Developer Tools (for ARIA, contrast, semantic structure validation)
Automated scans were supplemented by partial manual verification to identify issues not detectable through automated tools (e.g., contextual meaning, focus management, screen reader behaviour).
Website pages that underwent compliance verification
All publicly accessible pages identified in the sitemap at the moment of crawling.
Pages identified through full-site crawl using Dynomapper:
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/edcc
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/network-tokenisation
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/mastercard-debit
- https://developer.payone.com/de/integration/how-to-integrate/plugins/opencart
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/python
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/objective-c
- https://developer.payone.com/de/integration/how-to-integrate/test-cases/index
- https://developer.payone.com/de/integration/api-developer-guide/maintenance-operations
- https://developer.payone.com/de/integration/basic-integration-methods/server-to-server
- https://developer.payone.com/de/integration/best-practices/mobile
- https://developer.payone.com/de/integration/best-practices/optimise-customer-experience/optimise-hosted-checkout-page
- https://developer.payone.com/de/design-and-test-tools/tools/template-builder
- https://developer.payone.com/de/design-and-test-tools/applications/merchant-portal/e-terminal
- https://developer.payone.com/de/about/contact/internal
- https://developer.payone.com/de/security-and-risk-management/security/dealing-with-carding-attacks
- https://developer.payone.com/de/security-and-risk-management/3d-secure/3-d-secure-statuses
- https://developer.payone.com/de/security-and-risk-management/fraud-prevention/fraud-expert-checklist
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/detokenization
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/visa-debit
- https://developer.payone.com/de/integration/how-to-integrate/plugins/woocommerce3rdparty
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/dotnet
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/index
- https://developer.payone.com/de/integration/index
- https://developer.payone.com/de/integration/api-developer-guide/authorisation-and-directsale
- https://developer.payone.com/de/integration/basic-integration-methods/hosted-checkout-page
- https://developer.payone.com/de/integration/best-practices/display-discount-and-taxes
- https://developer.payone.com/de/integration/best-practices/optimise-customer-experience/index
- https://developer.payone.com/de/design-and-test-tools/applications/merchant-portal/pay-by-link
- https://developer.payone.com/de/design-and-test-tools/applications/my-performance
- https://developer.payone.com/de/about/contact/index
- https://developer.payone.com/de/about/live-environment
- https://developer.payone.com/de/security-and-risk-management/security/firewall-configuration
- https://developer.payone.com/de/security-and-risk-management/3d-secure/index
- https://developer.payone.com/de/security-and-risk-management/fraud-prevention/index
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/cof-framework
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/control-descriptor
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/mastercard-credit
- https://developer.payone.com/de/payment-methods-and-features/index
- https://developer.payone.com/de/integration/how-to-integrate/plugins/shopware
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/php
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/react-native
- https://developer.payone.com/de/integration/api-developer-guide/idempotent-requests
- https://developer.payone.com/de/integration/basic-integration-methods/hosted-tokenization-page
- https://developer.payone.com/de/integration/best-practices/index
- https://developer.payone.com/de/integration/best-practices/optimise-customer-experience/logos
- https://developer.payone.com/de/api-reference
- https://developer.payone.com/de/design-and-test-tools/applications/merchant-portal/user-manager
- https://developer.payone.com/de/design-and-test-tools/index
- https://developer.payone.com/de/about/index
- https://developer.payone.com/de/security-and-risk-management/security/index
- https://developer.payone.com/de/security-and-risk-management/3d-secure/conceal-or-skip-3-d-secure-authentication
- https://developer.payone.com/de/security-and-risk-management/fraud-prevention/fraud-detection
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/api-endpoints-and-jsons-samples
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/payout
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/visa-credit
- https://developer.payone.com/de/integration/how-to-integrate/plugins/sap
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/nodejs
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/android
- https://developer.payone.com/de/integration/api-developer-guide/webhooks
- https://developer.payone.com/de/integration/basic-integration-methods/mobile-integration
- https://developer.payone.com/de/integration/best-practices/optimise-customer-experience/optimise-self-hosted-payment-page
- https://developer.payone.com/de/search
- https://developer.payone.com/de/design-and-test-tools/applications/merchant-portal/login-password-reset
- https://developer.payone.com/de/about/thank-you
- https://developer.payone.com/de/security-and-risk-management/3d-secure/exemption-engine
- https://developer.payone.com/de/security-and-risk-management/fraud-prevention/fraud-expert-scoring
- https://developer.payone.com/de/security-and-risk-management/index
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-o-file/properties
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/brand-ordering-for-co-badged-cards
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/mastercard
- https://developer.payone.com/de/integration/how-to-integrate/plugins/proximis
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/ruby
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/swift
- https://developer.payone.com/de/integration/how-to-integrate/index
- https://developer.payone.com/de/integration/api-developer-guide/api
- https://developer.payone.com/de/api-reference-accessible
- https://developer.payone.com/de/design-and-test-tools/applications/merchant-portal/index
- https://developer.payone.com/de/about/glossary
- https://developer.payone.com/de/security-and-risk-management/3d-secure/implementation
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/use-cases
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/dispute-management
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/ideal
- https://developer.payone.com/de/integration/how-to-integrate/plugins/woocommerce
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/index
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/flutter
- https://developer.payone.com/de/integration/api-developer-guide/api-troubleshooting
- https://developer.payone.com/de/index
- https://developer.payone.com/de/about/release-notes
- https://developer.payone.com/de/security-and-risk-management/3d-secure/decouple-amount
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/card-on-file/index
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/co-badging-and-bin-detection
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/bank-transfer
- https://developer.payone.com/de/integration/how-to-integrate/plugins/shopify
- https://developer.payone.com/de/integration/how-to-integrate/server-sdks/java
- https://developer.payone.com/de/integration/how-to-integrate/client-sdks/javascript
- https://developer.payone.com/de/integration/api-developer-guide/index
- https://developer.payone.com/de/test-uppgrade-24-page
- https://developer.payone.com/de/about/older-releases
- https://developer.payone.com/de/security-and-risk-management/3d-secure/soft-decline
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/avs
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/klarna
- https://developer.payone.com/de/integration/how-to-integrate/plugins/chargebee
- https://developer.payone.com/de/integration/api-developer-guide/statuses
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/cvv
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/blik
- https://developer.payone.com/de/integration/how-to-integrate/plugins/odoo
- https://developer.payone.com/de/integration/api-developer-guide/authentication
- https://developer.payone.com/de/payment-methods-and-features/advanced-features/index
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/google-pay
- https://developer.payone.com/de/integration/how-to-integrate/plugins/commercetools
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/diners
- https://developer.payone.com/de/integration/how-to-integrate/plugins/bigcommerce
- https://developer.payone.com/de/404
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/wero
- https://developer.payone.com/de/integration/how-to-integrate/plugins/prestashop
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/applepay
- https://developer.payone.com/de/integration/how-to-integrate/plugins/magento
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/sepa-direct-debit
- https://developer.payone.com/de/integration/how-to-integrate/plugins/salesforce
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/przelewy24
- https://developer.payone.com/de/integration/how-to-integrate/plugins/aerocommerce
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/paypal
- https://developer.payone.com/de/integration/how-to-integrate/plugins/magento-pwa
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/eps
- https://developer.payone.com/de/integration/how-to-integrate/plugins/index
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/maestro
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/alipay
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/visa
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/wechat
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/index
- https://developer.payone.com/de/payment-methods-and-features/payment-methods/american-xpress
- https://developer.payone.com/de/search
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