Terms of Service

Last updated: October 9, 2026

CertObserver is operated by Kodhaj AB, a company registered in Sweden under company registration number 559537-4868. Our contact details are on the Contact page.

By creating an account or using CertObserver, you agree to these terms. If you accept them on behalf of an organization, you must have authority to do so, and “you” means that organization.

Our Privacy Policy explains how we process personal data.

The service

CertObserver provides monitoring of certificates used by hosts, Certificate Transparency monitoring, and Certificate Transparency search.

You remain responsible for your systems, certificates, and security, including your monitoring settings and acting on alerts.

Your account and use of the service

Provide accurate account and billing information. Keep your sign-in codes and email account secure. You are responsible for activity under your account.

You may search and monitor public CT records for any domain. You must have permission from the host’s owner or operator for direct host checks. Only add notification recipients and destinations you are authorized to use.

Do not use CertObserver unlawfully, infringe others’ rights, or interfere with or damage systems. We may suspend or terminate access for material breaches of these terms or security threats.

Billing, free trial, and cancellation

These terms govern your use of CertObserver. Our billing partner FastSpring has its own purchase terms.

We offer one 14-day free trial per customer, with no payment details required. Subscribing starts the paid plan immediately and ends the trial. Otherwise, monitoring stops when the trial expires.

Monitors are organized into projects. Each paid project has its own monthly subscription that renews automatically until canceled.

Plan prices and limits are listed on our website. Prices are listed in USD excluding tax, and the total is shown at checkout. Upgrades are charged proportionally for the remaining billing period. Downgrade prices apply at the next renewal.

Project owners can cancel from the project’s Billing page. Monitoring continues until the end of the paid period and then stops. We may suspend monitoring if payment is overdue.

Payments are generally non-refundable, except when a charge is incorrect or a refund is required by law. If we discontinue the service or your paid plan, we’ll stop future charges and arrange a refund through FastSpring for the unused prepaid period.

Consumers in the EU generally have 14 days from entering into a paid subscription to withdraw. This right is separate from the free trial. If you expressly requested service to start during that period, a proportionate charge may apply where permitted by law. FastSpring’s purchase terms include withdrawal instructions.

For existing subscriptions, price increases apply only to renewals at least 30 days after we email you notice.

Changes to the service and these terms

We may change the service to improve functionality or reliability, address security risks, or meet legal requirements. We’ll give affected customers reasonable advance email notice of significant reductions in paid service, including any cancellation and refund rights required by law.

We may update these terms to reflect changes to the service or legal requirements. If a material change adversely affects account holders, we’ll email them at least 30 days before it takes effect. Urgent legal or security changes may take effect sooner where permitted by law.

If a change materially reduces your paid service or your rights under these terms, you may end the affected subscription and receive a refund for the unused prepaid period.

Intellectual property

We retain the rights to our software, branding, and documentation. Third-party components remain subject to their own licenses. You retain any rights you have in the data you provide.

You may use CertObserver in accordance with these terms. You may not copy, modify, resell, or reverse engineer our software, except where permitted by law.

Liability and disclaimers

We provide the service “as is” and “as available” to the extent permitted by law. We do not guarantee uninterrupted or error-free service, complete CT coverage, or that every certificate issue will be detected or every alert will be delivered.

The service is not designed for use where failure could cause death, personal injury, or severe environmental or property damage.

To the extent permitted by law:

• We are not liable for indirect or consequential loss, loss of profits, or loss of data.
• Our total liability for all claims relating to the service is limited to the fees you paid for CertObserver during the 12 months before the event giving rise to the claim.

Governing law and disputes

Swedish law governs these terms, and disputes are handled by Swedish courts. Consumers may also bring claims before courts or use dispute resolution bodies available to them under applicable law in their home country.

Nothing in these terms limits your mandatory consumer rights, including protections that apply in your country of residence.