Cookie & Social-Plugin
The General Data Protection Regulation (GDPR)  does not contain any explicit regulations on cookies. However, it is pointed out in the considerations that under certain circumstances online identifiers such as IP addresses and cookies can be assigned to natural persons. Cookies are therefore also considered “personal data” within the meaning of the GDPR. The concrete application of the GDPR to cookies is not always quite simple, since the legislator usually had other application areas of data collections in mind.
Cookies as personal data
 Directive 2009/136/EC; http://data.europa.eu/eli/dir/2009/136/oj.
 As a website operator in Switzerland, it can be assumed that the EU DSGVO will also apply due to the website calls by users from the EU and the associated observation of behaviour (through tracking cookies). One way of not subjecting your website to the EU DSGVO is to restrict access only to Swiss IP addresses. However, since data protection will also be tightened in Switzerland in the coming years, implementation in conformity with the EU DSGVO is already recommended today.
 information commissioner’s office (data protection authority United Kingdom).