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Terms of Service

Last updated: October 14, 2026

1. Acceptance of Terms

By accessing or using A11yScope ("the Service"), operated by Ryusei Saito ("we," "us," or "our"), you agree to be bound by these Terms of Service. If you do not agree, do not use the Service.

2. Service Description

A11yScope is a web accessibility scanning service that analyzes web pages for automated WCAG 2.1 A/AA findings using axe-core, an open-source accessibility testing engine. The Service provides automated scan results, violation reports, and suggested fixes.

Important: A11yScope provides automated testing only. Automated testing covers only part of WCAG and does not establish conformance. Our scan results are not legal advice or a certification of WCAG or ADA compliance. Review any Needs Review items and complete keyboard and assistive-technology testing, with expert review where needed.

3. Accounts

Some features require an account. You must provide a valid email address and keep your account information accurate. You are responsible for all activity under your account. You must not share your sign-in link with others.

We reserve the right to suspend or terminate accounts that violate these terms or are used for abusive purposes.

4. Plans and Billing

A11yScope offers Free, Starter ($10/month), Pro ($49/month), and Agency ($149/month) plans. Paid plans include a 7-day free trial, available once per eligible customer under the plan-specific terms shown at Checkout. An existing open subscription must be reviewed or managed in Billing; A11yScope does not start a duplicate Checkout. If the account has no open subscription but has prior ended subscription or trial history, no new trial is provided and a new paid Checkout follows the no-trial payment terms. Payment is processed by Stripe.

  • Trial period — Where a trial applies, you will not be charged during the 7-day trial. If you cancel before the trial ends, no payment will be collected.
  • Eligible Starter trial — Stripe Checkout securely collects a payment method when you start a 7-day free trial. Your exact deadline is shown in Dashboard and Billing. Unless you cancel in Billing before the deadline, Starter's paid period begins then at the standard USD 10/month price before any discounts, and Stripe attempts payment. A11yScope does not receive or handle card details.
  • Eligible Pro or Agency trial — For eligible first-time customers, Stripe Checkout securely collects a payment method when you start a 7-day free trial. Eligibility is confirmed at checkout, and your exact deadline is shown in Dashboard and Billing. Unless you cancel in Billing before the deadline, the paid period begins then at the standard USD 49/month for Pro or USD 149/month for Agency before any discounts, and Stripe attempts payment. A11yScope does not receive or handle card details. Previously saved Pro or Agency checkouts keep their original server-confirmed terms shown by Stripe Checkout.
  • Existing Starter cardless trial — A Starter trial that already began without a payment method keeps its original deadline and original terms shown in Billing. To continue Starter, register a default payment method by that deadline. If no default payment method is registered, that Starter subscription is canceled and Starter access ends; any other valid plan remains unaffected.
  • Billing — Once the initial payment is confirmed, a paid subscription renews automatically each month until canceled. Where no trial applies, payment is requested during Checkout. You can review or manage your subscription from Billing and request cancellation at any time; contact support if the portal does not show the control you need. Subscription cancellation takes effect at the end of the current trial or paid billing period, and access continues until then.
  • Refunds — We offer a 30-day money-back guarantee on all paid plans. After 30 days, no prorated refunds are provided for mid-cycle cancellations.
  • Price changes — We will notify you at least 30 days before any price increase.

For detailed billing information, see our Legal Disclosure.

5. Acceptable Use

You agree not to:

  • Scan websites you do not own or have permission to test
  • Use the Service to perform security testing, penetration testing, or vulnerability scanning
  • Attempt to bypass rate limits or abuse the scanning infrastructure
  • Use automated scripts or bots to access the Service beyond its intended API
  • Resell or redistribute scan results as your own product without an Agency plan
  • Submit URLs that contain illegal, malicious, or harmful content
  • Interfere with the Service's operation or other users' access

Rate limits: Scanning without an account is limited to 5 scans per hour. Free accounts include 50 scan attempts in any 30-day period. Attempts that start count toward these limits, including unsuccessful scans. Paid plans include unlimited scans, subject to reasonable use. Excessive automated scanning may be throttled.

6. Intellectual Property

The A11yScope service, website, design, and original content are owned by us. Your scan results belong to you — you may use, share, and distribute your own reports freely.

A11yScope uses axe-core by Deque Systems under the Mozilla Public License 2.0.

7. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

We do not warrant that the Service will be uninterrupted, error-free, or completely accurate. Accessibility scan results are generated by automated tools and may contain false positives or miss certain issues.

8. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS, DATA, OR GOODWILL, ARISING FROM YOUR USE OF THE SERVICE.

OUR TOTAL LIABILITY FOR ANY CLAIM ARISING FROM THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM, OR $100 USD, WHICHEVER IS GREATER.

9. Privacy

Your use of the Service is subject to our Privacy Policy, which describes how we collect, use, and protect your data.

10. Service Availability

We strive to maintain high availability but do not guarantee 100% uptime. We may temporarily suspend the Service for maintenance, updates, or security reasons. We will make reasonable efforts to notify users of planned downtime in advance.

11. Termination

You may stop using the Service and delete your account at any time from your account settings. We may suspend or terminate your account if you violate these terms, with or without notice.

Upon termination, your access to the Service ceases and your data will be deleted in accordance with our Privacy Policy.

12. Changes to These Terms

We may update these Terms from time to time. Material changes will be posted on this page with an updated date. Continued use of the Service after changes constitutes acceptance. If you disagree with updated terms, please stop using the Service.

13. Governing Law and Disputes

These Terms are governed by the laws of Japan. Any disputes arising from these Terms or the Service shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.

14. Contact

If you have questions about these Terms, contact us at:

  • Email: support@a11yscope.com
  • Business: A11yScope (Sole Proprietorship)
  • Location: Musashino City, Tokyo, Japan