I, the author of this blog, have no interest in your data and I’m sorry we live in a world where you have to worry about that kind of thing.
HOWEVER, I use WordPress and their associated services so read below for information about what they do.
Activity
This feature only records activities of a site’s registered users, and the retention duration of activity data will depend on the site’s plan and activity type.
Data Used: To deliver this functionality and record activities around site management, the following information is captured: user email address, user role, user login, user display name, WordPress.com and local user IDs, the activity to be recorded, the WordPress.com-connected site ID of the site on which the activity takes place, the site’s Jetpack version, and the timestamp of the activity. Some activities may also include the actor’s IP address (login attempts, for example) and user agent.
Activity Tracked: Login attempts/actions, post and page update and publish actions, comment/pingback submission and management actions, plugin and theme management actions, widget updates, user management actions, and the modification of other various site settings and options. Retention duration of activity data depends on the site’s plan and activity type. See the complete list of currently-recorded activities (along with retention information).
Data Synced (?): Successful and failed login attempts, which will include the actor’s IP address and user agent.
Comment Likes
This feature is only accessible to users logged in to WordPress.com.
Data Used: In order to process a comment like, the following information is used: WordPress.com user ID/username (you must be logged in to use this feature), the local site-specific user ID (if the user is signed in to the site on which the like occurred), and a true/false data point that tells us if the user liked a specific comment. If you perform a like action from one of our mobile apps, some additional information is used to track the activity: IP address, user agent, timestamp of event, blog ID, browser language, country code, and device info.
Activity Tracked: Comment likes.
Contact Form
Data Used: If Akismet is enabled on the site, the contact form submission data — IP address, user agent, name, email address, website, and message — is submitted to the Akismet service (also owned by Automattic) for the sole purpose of spam checking. The actual submission data is stored in the database of the site on which it was submitted and is emailed directly to the owner of the form (i.e. the site author who published the page on which the contact form resides). This email will include the submitter’s IP address, timestamp, name, email address, website, and message.
Data Synced (?): Post and post meta data associated with a user’s contact form submission. If Akismet is enabled on the site, the IP address and user agent originally submitted with the comment are synced, as well, as they are stored in post meta.
Gravatar Hovercards
Data Used: This feature will send a hash of the user’s email address (if logged in to the site or WordPress.com — or if they submitted a comment on the site using their email address that is attached to an active Gravatar profile) to the Gravatar service (also owned by Automattic) in order to retrieve their profile image.
Jetpack Comments
Data Used: Commenter’s name, email address, and site URL (if provided via the comment form), timestamp, and IP address. Additionally, a jetpack.wordpress.com IFrame receives the following data: WordPress.com blog ID attached to the site, ID of the post on which the comment is being submitted, commenter’s local user ID (if available), commenter’s local username (if available), commenter’s site URL (if available), MD5 hash of the commenter’s email address (if available), and the comment content. If Akismet (also owned by Automattic) is enabled on the site, the following information is sent to the service for the sole purpose of spam checking: commenter’s name, email address, site URL, IP address, and user agent.
Activity Tracked: The comment author’s name, email address, and site URL (if provided during the comment submission) are stored in cookies. Learn more about these cookies.
Data Synced (?): All data and metadata (see above) associated with comments. This includes the status of the comment and, if Akismet is enabled on the site, whether or not it was classified as spam by Akismet.
Likes
This feature is only accessible to users logged in to WordPress.com.
Data Used: In order to process a post like action, the following information is used: IP address, WordPress.com user ID, WordPress.com username, WordPress.com-connected site ID (on which the post was liked), post ID (of the post that was liked), user agent, timestamp of event, browser language, country code.
Activity Tracked: Post likes.
Mobile Theme
Data Used: A visitor’s preference on viewing the mobile version of a site.
Activity Tracked: A cookie (akm_mobile) is stored for 3.5 days to remember whether or not a visitor of the site wishes to view its mobile version. Learn more about this cookie.
Notifications
This feature is only accessible to registered users of the site who are logged in to WordPress.com.
Data Used: IP address, WordPress.com user ID, WordPress.com username, WordPress.com-connected site ID and URL, Jetpack version, user agent, visiting URL, referring URL, timestamp of event, browser language, country code. Some visitor-related information or activity may be sent to the site owner via this feature. This may include: email address, WordPress.com username, site URL, email address, comment content, follow actions, etc.
Activity Tracked: Sending notifications (i.e. when we send a notification to a particular user), opening notifications (i.e. when a user opens a notification that they receive), performing an action from within the notification panel (e.g. liking a comment or marking a comment as spam), and clicking on any link from within the notification panel/interface.
Protect
Data Used: In order to check login activity and potentially block fraudulent attempts, the following information is used: attempting user’s IP address, attempting user’s email address/username (i.e. according to the value they were attempting to use during the login process), and all IP-related HTTP headers attached to the attempting user.
Activity Tracked: Failed login attempts (these include IP address and user agent). We also set a cookie (jpp_math_pass) for 1 day to remember if/when a user has successfully completed a math captcha to prove that they’re a real human. Learn more about this cookie.
Data Synced (?): Failed login attempts, which contain the user’s IP address, attempted username or email address, and user agent information.
Sharing
Data Used: When official sharing buttons are active on the site, each button loads content directly from its service in order to display the button as well as information and tools for the sharing party. As a result, each service can in turn collect information about the sharing party. When a non-official Facebook or a Pinterest sharing button is active on the site, information such as the sharing party’s IP address as well as the page URL will be available for each service, so sharing counts can be displayed next to the button. When sharing content via email (this option is only available if Akismet is active on the site), the following information is used: sharing party’s name and email address (if the user is logged in, this information will be pulled directly from their account), IP address (for spam checking), user agent (for spam checking), and email body/content. This content will be sent to Akismet (also owned by Automattic) so that a spam check can be performed. Additionally, if reCAPTCHA (by Google) is enabled by the site owner, the sharing party’s IP address will be shared with that service. You can find Google’s privacy policy here.
Subscriptions
Data Used: To initiate and process subscriptions, the following information is used: subscriber’s email address and the ID of the post or comment (depending on the specific subscription being processed). In the event of a new subscription being initiated, we also collect some basic server data, including all of the subscribing user’s HTTP request headers, the IP address from which the subscribing user is viewing the page, and the URI which was given in order to access the page (REQUEST_URI and DOCUMENT_URI). This server data used for the exclusive purpose of monitoring and preventing abuse and spam.
Activity Tracked: Functionality cookies are set for a duration of 347 days to remember a visitor’s blog and post subscription choices if, in fact, they have an active subscription.