2.2.6. Website server logfiles: The provider of the website collects and saves automatically data in so called “server logfiles” which the browser transmits automatically, such as:
– Browsertyp and Browserversion – used operating system – Referrer URL – Hostname of the accessing personal computer – time of the server-access – IP-Adress
The use of Twitter and the “Retweet” function links websites visited by you to your Twitter account and makes this known to other users
3. Your rights – You are at all times entitled to have access to these data, to correct correctable data or opt out to their use. You can address your written request in this respect, accompanied by a copy or your identity card, to CITA at the above-mentioned address. We will comply with your request within 30 days. The provision of electronic services is important to us. If you subscribe to an (electronic) newsletter, you give us permission to use your e-mail address to send you the (electronic) newsletter as well as other information, such as events. You can exercise your right to object to direct marketing by clicking to confirm that you no longer wish to be contacted by e-mail upon receipt of a commercial message. You can unsubscribe from our newsletter by clicking on the unsubscribe link provided at the end of the newsletter. You can also email to update your email address, or to request that we delete your email from the newsletter subscription.
4. Data Protection Only authorised persons have access to the data that are relevant for the performance of their services. CITA has taken the required technical and organisational measures in order to ensure the confidentiality of the data provided by you. CITA guarantees that in case of misuse of your personal data caused by proven failures of our protection devices, 
4.1. Data protection policy for the use of Facebook plug-ins (“Like” button) – Our site contains plug-ins for the Facebook social networking site, 1601 South California Avenue, Palo Alto, CA 94304, USA. Please see here for an overview of Facebook plug-ins: When you visit our site, a direct connection is created between your browser and the Facebook server. Facebook is then notified that you have visited our site using your IP address. If you click on the Facebook “Like” button while logged in to your Facebook account, you can link to our site content on your Facebook profile, allowing Facebook to match your visit to our site to your Facebook account. Please be aware that we, as the site provider, receive no notification of the contents of data transmitted or of its use by Facebook. For further information, please see Facebook’s data protection policy: If you do not wish Facebook to match your site visit to your Facebook user account, please log out of your Facebook account.
Facebook plug-ins can be recognized by the presence of the Facebook logo of the “Like” button on the site
4.2. Data protection policy for the use of Twitter – The functions of the Twitter service are integrated into our website. These functions are offered by Twitter Inc., 795 Folsom St., Suite 600, San Francisco, CA 94107, USA. This also entails the transmission of data to Twitter.Please be aware that we, as the site provider, receive no notification of the contents of data transmitted or of its use by Twitter. For further information, please see Twitter’s data protection policy: You can change your Twitter data protection settings in your account settings at: .