Cookie policy
ver. 1.0 Last Updated: October 15, 2023
Usage about Cookie & other storage technologies
Cookie is a short texts that used by website to save some information into web browser. It include identifier of user, setting information. We will take and use it if it needed.
This policy explain about usage of Cookies, kind of Cookies and how control Cookies yourself on Class.mu.
Except separately stated in this policy, Classii.mu process the information that obtained through Cookies and our Data Management and Privacy Policy is applied to the processes.
Purpose of use
Cookies is useful to personalize content, customize and measure advertising, and improve the overall experience of our Services.
There are two types of Cookie. One is a session cookie, which is deleted when you close your browser, and the other is a persistent cookie which remains until it expores or you deleted it.
Classii.mu uses cookies for purposes bellow. Please note that the cookies we use may change as Classii.mu updates.
Cookie consent information (required)
Classii.mu ask you for the consent to handle the following information when using the service and save in to the cookie. The confirmation of consent will be omitted the next time the user accesses the service. All certificates will expired in one year.
The relevant cookies are:
- Consent information for language selection cookie usage "_ca_use_lang"
- Consent information regarding Google Analytics is "_ca_use_ga"
- Consent information regarding Apple Music Player is "_cl_use_applemusic_player"
- Consent information regarding Spotify Player is "_cl_use_spotify_player"
- Consent information regarding YouTubePlayer is "_cl_use_youtube_player"
Authentication (required)
Classii.mu uses cookies to authenticate your account and determine if you are logged in. This will make it easier for users to access Classii's services. If you do not wish to use cookies for such functions, they will be deleted by logging out. The token used for login is valid for 1 hour. These information are stored in the browser's indexedDB.
Example: We use cookies to keep you logged in even if you switch pages within Classii.mu. Cookies also help us remember your browser. Therefore, users do not need to log in to Classii.mu repeatedly.
Language Selection (required)
Cookies are utilized to provide content that is highly relevant to the user's locale. The corresponding key is "_cl_lang," and its expiration period is 1 year.
Example: Users can choose their preferred display language, and by storing this information in a cookie, the site can be displayed in the user's selected language even when they access it next time.
Apple Music Player and Spotify Player (Recommended)
Classii.mu allows playback of music content by embedding Apple Music Player and Spotify Player within the website. This functionality is implemented using the Apple Music Player provided by Apple or the Spotify Player provided by Spotify. Each of these utilizes several cookies. For more details, please refer to "About Apple Music web player & Privacy" and "Spotify Cookie Policy". Playing music content is a crucial feature on Classii.mu, and while the use of Apple Music Player and Spotify Player is recommended, users have the option to decline this usage based on their preferences.
YouTube Player (Recommended)
You can play embedded YouTube videos on the Classii.mu website using the YouTube Player. This feature is implemented using the YouTube Player provided by YouTube. The YouTube Player uses several cookies. For more details, please refer to "How GOOGLE Uses Cookies". While Classii.mu considers videos to be important content and recommends using the YouTube Player, users have the option to refuse this usage based on their preferences.
Google Analytics
There are two purposes for using Google Analytics on Classii.mu. Firstly, it investigates user behavior within the site (accessed pages, search keywords, reactions such as likes, etc.). By analyzing the research results, it contributes to improving the service.
Google Advertising
The second purpose is ad optimization. This involves displaying tailored content and advertisements to users, providing social media features, and measuring the frequency of ad displays and clicks. Such information is shared with data analysis partners. These partners may combine the information collected here with other information users have provided to them, as well as other information collected when users use their respective services.
The cookies used by Google are as follows.
| Cookie names | Default expiration periods | Descriptions |
|---|---|---|
_ga | 2 years | Used to distinguish between users. |
_gid | 24 hours | Used to distinguish between users. |
_gat | 1 minut | Used to throttle request rate. |
AMP_TOKEN | 30 sec ～ 1 year | Contains a token that can be used to retrieve the client ID from the AMP Client ID service. Different valid values indicate opt-out, in-progress requests, or errors in obtaining the client ID from the AMP Client ID service. |
_gac_<property-id> | 90 days | Contains campaign-related information about the user. If you have linked Google Analytics and Google Ads accounts, unless opted out, this cookie's information will be read by the conversion tag of Google Ads websites. |
Using a Web Browser in Private Browsing Mode
For enhanced privacy while using Classii.mu and for long-term restriction of cookie storage, we recommend utilizing a web browser with the "Private" browsing option. Information about this possibility can be found on the help pages of the most common browsers.
| Browser | Private Browsing Feature | Information Reference Links |
|---|---|---|
| Internet Explorer 8 and later, Microsoft Edge | InPrivate | Explorer Microsoft Edge |
| Safari 2 and later | Private Browsing | https://support.apple.com/ja-jp/HT203036 |
| Opera 10.5 and later | Private Window | https://blogs.opera.com/japan/2014/10/opera-for-computers-private-window/ |
| FireFox 3.5 and later | Private Browsing | https://support.mozilla.org/ja/kb/private-browsing-use-firefox-without-history |
| Google Chrome 10 and later | Incognito Mode | https://support.google.com/chrome/answer/95464?co=GENIE.Platform%3DDesktop&hl=ja |
How to Manage Cookies in Your Browser
Depending on your browser, you can enable or delete cookies through the settings. The management settings vary by browser, and the available options and features may be subject to changes by the manufacturer over time. As of Octber 10, 2023, you can find detailed information about the management settings provided by popular browsers through the following links.