Terms of Service

Last updated: March 30, 2026

1. Acceptance of Terms

By accessing or using CheckSite ("Service"), operated by Nebula Karol Furgol, registered in Poland (NIP: 9542823719), you agree to be bound by these Terms of Service ("Terms"). If you disagree with any part of these Terms, you may not access the Service. These Terms apply to all visitors, users, and others who access or use the Service.

These Terms are governed by Polish and European Union law. Please read them carefully before using our Service.

2. Description of Service

CheckSite is a website monitoring platform that automatically tracks changes on publicly accessible web pages and delivers intelligent notifications. Our service includes:

  • Automated website change detection and monitoring at configurable intervals
  • AI-powered change analysis with summaries, categorization, and significance scoring
  • Action recommendations based on detected changes
  • Multi-channel notifications (Email, Telegram, Slack, Discord, Microsoft Teams, Webhooks)
  • Cross-monitor intelligence that identifies patterns across multiple monitored sites (Pro tier)
  • Predictive patterns including frequency analysis, trend detection, and anomaly detection (Pro tier)
  • Smart triggers with conditional alerting based on specific value thresholds (Pro tier)
  • Monitor groups with configurable digest notification schedules (Pro tier)
  • Viewport screenshots of monitored pages showing before/after state (Pro tier)
  • Custom monitoring prompts for personalized AI analysis (Pro tier)
  • Browser extension for quick monitor creation from any webpage
  • Dashboard with change history, analytics, and monitor management

CheckSite monitors publicly accessible web pages only. We do not currently support monitoring pages that require authentication or login.

3. User Accounts

Account Creation

To use our Service, you must create an account using a valid email address and provide accurate, complete information. You are responsible for maintaining the confidentiality and security of your account credentials.

Account Responsibilities

  • You must be at least 16 years old in the European Economic Area, or at least 13 years old in other jurisdictions, to use our Service
  • You are responsible for all activities that occur under your account
  • You must notify us immediately at support@checksite.app of any unauthorized use of your account or any other security breach
  • You may not share your account credentials with others or create multiple accounts for the purpose of circumventing plan limits

4. Subscription Plans and Billing

Service Tiers

We offer the following service tiers:

Free:

  • 3 monitored websites
  • Daily checks (every 24 hours)
  • Email notifications only
  • AI-powered change summaries (15 summaries per month; changes beyond this limit are still detected and notified but without AI-generated summaries)

Pro ($13.33/month, currently $9.99/month during promotional period):

  • 20 monitored websites
  • Configurable check frequency (hourly, every 2h, 4h, 8h, or daily)
  • All notification channels (Email, Telegram, Slack, Discord, Microsoft Teams, Webhooks)
  • Unlimited AI-powered change summaries
  • Custom monitoring prompts
  • Monitor groups with digest notifications
  • Cross-monitor intelligence and predictive patterns
  • Smart triggers with conditional alerting
  • Viewport screenshots (before/after)
  • Browser extension access
  • Priority support

Enterprise (custom pricing):

  • Custom monitor limits
  • Custom check frequencies
  • Everything in Pro
  • Dedicated support

Paid subscriptions are billed monthly through our payment processor Polar.sh. Displayed prices are inclusive of all applicable taxes — the price you see is the total amount you pay.

Payment Terms

  • Payment is due in advance for each subscription period
  • All payments are processed securely through Polar.sh
  • We may change pricing with at least 30 days' advance notice via email. Price changes take effect at the start of your next billing cycle after the notice period.
  • Failed payments may result in service suspension or downgrade to the Free tier after reasonable notice
  • You may upgrade, downgrade, or cancel your subscription at any time from your account settings
  • Upgrades take effect immediately. Downgrades and cancellations take effect at the end of the current billing cycle.

Refund Policy

We offer a 30-day money-back guarantee for paid subscriptions. If you are not satisfied with our Service, you may request a full refund within 30 days of your most recent subscription payment by contacting us at support@checksite.app. This refund policy applies only to the current billing period and does not cover previous billing cycles.

After 30 days, all payments are final and non-refundable. You may cancel your subscription at any time to prevent future charges.

This refund policy does not affect your statutory rights under applicable consumer protection laws, including the EU Consumer Rights Directive (Directive 2011/83/EU).

5. Acceptable Use Policy

You agree to use our Service only for lawful purposes and in accordance with these Terms. Specifically, you agree not to:

  • Use our Service to access websites you are not legally permitted to view or that require circumventing access controls
  • Violate any applicable local, national, or international laws or regulations
  • Infringe on the intellectual property rights of others
  • Attempt to gain unauthorized access to our systems, other users' accounts, or computer systems connected to our Service
  • Interfere with or disrupt the integrity or performance of our Service or its underlying infrastructure
  • Use our Service to monitor content that is illegal under applicable law
  • Circumvent, disable, or otherwise interfere with any rate limits, usage limits, or other technical measures we implement
  • Use our Service in a way that generates excessive load on our systems disproportionate to your subscription tier
  • Resell, redistribute, or sublicense access to our Service without our written consent

We reserve the right to investigate and take appropriate action against anyone who, in our sole discretion, violates this provision, including without limitation removing content, suspending or terminating accounts, and reporting to law enforcement authorities.

6. User Indemnification

You agree to indemnify, defend, and hold harmless CheckSite and its operator, employees, and agents from and against any claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising out of or in any way connected with:

  • Your use of the Service
  • Your violation of these Terms
  • Your violation of any rights of a third party, including any intellectual property rights or privacy rights
  • Websites or content you choose to monitor using the Service
  • Any claim by a third party that your use of the Service caused damage to that third party

This indemnification obligation will survive the termination of your account and these Terms.

7. Service Limitations

Monitoring Accuracy

Our Service uses automated systems, including AI-powered analysis, to detect and interpret website changes. While we strive for accuracy:

  • We cannot guarantee detection of every change on every monitored page
  • Check timing is approximate and may vary based on system load and page complexity
  • Some websites may block or limit automated access, affecting monitoring reliability
  • Content behind login walls, CAPTCHAs, or geographic restrictions may not be accessible

AI Analysis Disclaimer

CheckSite uses AI models (currently Google Gemini via OpenRouter) to analyze detected changes and generate summaries, categorizations, significance scores, pattern predictions, cross-monitor insights, and action recommendations. This AI-generated content:

  • Is provided for informational purposes only
  • May occasionally be inaccurate, incomplete, or misleading
  • Should not be relied upon as the sole basis for business, financial, legal, or other important decisions
  • Does not constitute professional advice of any kind

You are responsible for independently verifying any information that is important to you.

Service Availability

While we strive for high availability, we do not guarantee uninterrupted access to the Service. Scheduled maintenance, unplanned outages, and force majeure events may affect availability. We will make reasonable efforts to notify users of planned maintenance in advance.

8. Data and Privacy

Your privacy is important to us. Our collection, use, and protection of your information is governed by our Privacy Policy, which is incorporated into these Terms by reference. By using our Service, you acknowledge that you have read and understood our Privacy Policy.

9. Intellectual Property

Our Rights

The CheckSite service, including its software, design, logos, documentation, and original content, is owned by us and is protected by applicable intellectual property laws, including copyright, trademark, and trade secret law. Nothing in these Terms grants you any right to use our trademarks, logos, or branding without our prior written consent.

Your Content

You retain ownership of any content you provide to the Service, including monitoring prompts, notification configurations, and other user-generated settings. By using our Service, you grant us a worldwide, non-exclusive, royalty-free license to use, process, and store this content solely for the purpose of providing, maintaining, and improving our monitoring service.

Monitored Content

Content captured from third-party websites during monitoring checks is the intellectual property of those websites' respective owners. We claim no ownership over monitored content. Such content is processed solely to provide our change detection and analysis service and is handled in accordance with our Privacy Policy.

10. Disclaimers and Limitations

Service Disclaimer

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR MEET YOUR SPECIFIC REQUIREMENTS.

Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WE SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM OR RELATED TO YOUR USE OF THE SERVICE, INCLUDING BUT NOT LIMITED TO:

  • Loss of profits, revenue, data, or business opportunities
  • Damages arising from inaccuracies in automated analysis, AI-generated summaries, or change detection results
  • Damages arising from missed or delayed change notifications
  • Damages arising from service interruptions or unavailability
  • Damages arising from actions taken based on AI-generated recommendations

OUR TOTAL AGGREGATE LIABILITY FOR ALL CLAIMS ARISING FROM OR RELATED TO THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM.

Nothing in these Terms shall exclude or limit liability for death or personal injury caused by negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be excluded or limited under applicable law, including mandatory consumer protection provisions of EU law.

11. Termination

Termination by You

You may terminate your account at any time by using the account deletion feature in your account settings or by contacting us at support@checksite.app. Upon termination, your data will be handled in accordance with the data retention schedule in our Privacy Policy.

Termination by Us

We may suspend or terminate your account immediately and without prior notice if:

  • You materially violate these Terms, including the Acceptable Use Policy
  • Your use of the Service poses a security risk to us or other users
  • We are required to do so by law
  • Your account has been inactive for more than 12 consecutive months (Free tier only; we will attempt to notify you by email before deletion)

For other termination, we will provide at least 14 days' advance notice by email.

Effect of Termination

Upon termination, your right to use the Service ceases immediately. We will delete your account data in accordance with our Privacy Policy. Sections of these Terms that by their nature should survive termination will survive, including: Indemnification, Disclaimers, Limitation of Liability, and Governing Law.

12. Changes to Terms

We reserve the right to modify these Terms at any time. We will notify users of material changes by email to the address associated with your account at least 14 days before the changes take effect. Non-material changes may be posted on this page with an updated "Last updated" date.

Your continued use of the Service after the effective date of revised Terms constitutes your acceptance of the changes. If you do not agree with the changes, you may delete your account before the effective date. If required by applicable law, we will seek your affirmative consent to material changes.

13. Governing Law and Dispute Resolution

These Terms are governed by and construed in accordance with the laws of the Republic of Poland and applicable European Union law, without regard to conflict of law principles.

Any dispute arising from or relating to these Terms or the Service that cannot be resolved amicably shall be submitted to the exclusive jurisdiction of the competent courts in Poland.

If you are a consumer residing in the EU, you retain any mandatory consumer protection rights afforded to you by the laws of your country of residence, and you may bring legal proceedings in the courts of your country of residence. You may also use the European Commission's Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr.

14. Miscellaneous

Severability

If any provision of these Terms is held to be invalid, illegal, or unenforceable by a competent court, the remaining provisions will continue in full force and effect. The invalid provision will be modified to the minimum extent necessary to make it valid and enforceable while preserving its original intent.

Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and CheckSite regarding your use of the Service and supersede all prior or contemporaneous agreements, representations, or understandings.

No Waiver

Our failure to enforce any right or provision of these Terms will not be considered a waiver of that right or provision.

Assignment

You may not assign or transfer your rights or obligations under these Terms without our prior written consent. We may assign our rights and obligations under these Terms without restriction.

15. Contact Information

Questions about these Terms should be directed to:

Important Notice: These Terms constitute a legally binding agreement between you and CheckSite. Please read them carefully. If you have any questions, contact us before using our Service.