Last updated: 30 August 2026
Tlsinspect is a free tool that inspects TLS certificate chains. You may use it for any lawful purpose. You may not use it to probe systems you do not own or have explicit permission to test.
The tool is provided "as is" without any warranty, express or implied. The certificate data displayed is what the target server presented at the time of inspection. We make no guarantees about accuracy, availability, or completeness.
To the fullest extent permitted by law, Tlsinspect and its operators are not liable for any damages arising from the use or inability to use the service.
The Free tier is provided for individual and small-scale use. Automated or bulk inspection may be rate-limited or blocked without notice.
Payment processor not yet connected. Billing is not operational. The checkout page is a demonstration only — no real payment is taken or processed. The following terms describe the policy that will apply once a payment processor is connected and Pro subscriptions become available.
Free tier. Tlsinspect offers a Free tier at no cost. No payment information is required to use the Free tier.
Pro subscription. A Pro subscription is available at $9 per month (billed monthly in advance). Pro includes unlimited inspections, API access, and raw certificate data export. The current feature set is listed on the pricing page.
Billing period. Pro subscriptions are billed once per month on the subscription date. Each payment covers the following month of access. Subscriptions renew automatically unless cancelled.
Payment method. Payment is collected via a connected payment processor. By subscribing, you authorise the processor to charge the payment method on file at the start of each billing period.
Failed payments. If a payment fails, the processor will retry the charge up to three times over a period of five business days. If no payment is received after the final attempt, access to Pro features will be suspended until the outstanding balance is paid. The account reverts to Free tier access during suspension.
Refunds. Pro subscription charges are non-refundable except in the case of a billing error or extended service outage lasting more than 48 consecutive hours. If you cancel, you retain access to Pro features until the end of the current billing period, after which the account reverts to the Free tier.
Cancellation. You may cancel your Pro subscription at any time. No further charges will be incurred after cancellation. Instructions for cancellation will be provided once subscriber account management is available.
These terms may be updated at any time. Continued use after changes constitutes acceptance of the revised terms.
If you have questions about these terms, please reach out through the Tlsinspect project's issue tracker. Contact details are not yet available.