terms / proxycheck.io

Terms of Service Agreement

When you perform a query to any of our API endpoints or signup for our service with your email address you are automatically agreeing to all the terms set out on this page. If you do not agree with the terms you should immediately stop querying our API and if you've already registered for an account you should stop using it.

You will not attempt to harm our service in any way

This could mean hacking attempts, brute force login attempts, credential stuffing, Distributed Denial of Service (DDoS) attacks and so forth.

However there are exceptions, if you're testing our security with an aim to disclose what you find to us and not for malicious exploitation then you're welcome to do so. We're receptive to all security reports and you will not be penalised in any way for disclosing vulnerabilities.

You will not circumvent our free plan limits by creating multiple accounts

If you're found creating more than one free account you will lose access to every account you create. Each customer is allowed one free account in addition to any paid accounts they have. Do not make multiple free accounts for different websites you own, they can all be managed from a single account. There are no limits to how many paid accounts you may have.

You will not signup for service using temporary or disposable email addresses

Using disposable email addresses makes it impossible for us to contact you if we need to and it also jeopardises the security of your account as disposable addresses are often shared amongst multiple users of the websites which provide them.

You may want to look at our privacy policy which goes into detail about how we handle your email address.

You will keep your email address up to date

Sometimes customers change email providers, have their email accounts terminated or lose the domain name associated with their email address. It is up to you to keep your email address up to date with us at all times as if we can't contact you when it's needed we may have to close your account..

You may want to look at our privacy policy which goes into detail about how we handle your email address.

You will not use fraudulent payment information when purchasing a paid subscription

Payment fraud costs merchants like ourselves billions of dollars a year in lost revenue and bank fees. We take a hard stance on this, all suspicious payments are refunded and in all instances of confirmed payment fraud your account will be terminated.

You may want to look at our GDPR compliance page which goes into detail about how we securely store your payment information.

Permitted use of our data within your own services

You may use our data to enrich, enhance or support information that you present within your own service to your users. However, you may not make our entire data available verbatim, resell it, or operate a service whose primary purpose or value is providing access to our data.

Exceptions may be granted on a case-by-case basis. If you wish to request an exception, please contact us with a clear and concise explanation of your intended use and justification.

This restriction does not apply to third-party software that integrates with our API directly. We encourage the development of applications, libraries, plugins, add-ons, and widgets that query our API directly, provided end users supply their own API key issued by us.

You will not share your API Key with anyone outside of your organisation

This applies to your private API Key found within the customer dashboard. Any API Keys we find which are being shared either semi-privately or publicly will be deactivated. Sharing accounts is a big security issue for any site or service you protect with our API due to the power of the Custom Rules feature.


Back
Last update: 26th of January 2026
26th of January 2026
The section regarding how our API data may be used in your own products and services was updated and renamed. It is now more clear about the ways you can integrate and display our data.
17th of August 2020
A new section detailing that customers must keep their email address up to date was added.
16th of June 2020
The terms of service page was completely rewritten. All the previous terms remain but were expanded on with improved descriptions.