Mackerel Website Policy

Acquisition and purpose of use of personal information

On the Mackerel website, we may collect personal information such as names, e-mail addresses, and phone numbers of customers who subscribe to our e-mail newsletter or contact us. The personal information we collect is handled in accordance with the Personal Information Protection Act and company regulations, and is used for the following purposes:

  • To respond to inquiries, send questionnaires, etc.
  • To send information and e-mails regarding our services, events, etc.
  • To analyze the route of inquiries, whether our e-mails have been opened, the Mackerel website access status, etc.
  • To provide functionalities with the aim of improving convenience for our customers, such as recommendations based on access logs

In addition, we may acquire personal information from Mackerel sales activities and seminars held by us or third parties. In this case, in addition to the above purposes, the information will be used for the following purpose:

  • To manage events, etc.

Use of cookies, etc.

1. Regarding the use of cookies, etc.

We use cookies on the Mackerel website and service site (

Personal data such as cookies, URLs of pages viewed, referrers, and access logs are used for purposes such as confirming the login status, user authentication, understanding website usage, studying ways to improve our services, and improving convenience for our customers.

This personal data does not contain information that can identify individuals. However, if information such as access logs is used in conjunction with personal information, it is handled appropriately in accordance with the Personal Information Protection Act and company regulations.

2. Use of cookies, etc. by third-party companies

In order to use the services provided by the following third-party companies, we use cookies, web beacons, and mobile advertising IDs by third-party companies to transmit personal data.

For more information on how personal data is used by these services, please refer to the privacy policy of each service from 3. below.

If you wish to disable these services, please see the disable (opt-out) page of each service.

3. Purpose of use of personal data, service name, and privacy policy of each third-party company

  1. Purpose of use: to understand website usage, study ways to improve the service, and improve convenience for customers
  2. Purpose of use: Distribution of behaviorally-targeted advertisements

4. Disabling cookies, etc.

Cookies stored on your device will remain on the device until you delete them or until their respective expiration dates expire.

If you wish to disable all cookies, you can do so in your browser settings. Please note that if you disable cookies, you may not be able to use some of the functionalities of this website, and the services of third-party companies may be affected.


*For inquiries about this policy, contact us at

*We may provide a translated version of this policy, but it is provided for the purpose of improving convenience for customers, and only the Japanese version of this policy is effective.

Established on July 5, 2021