The Web of Science platform is owned by Clarivate Analytics. Until 2017, the IP&Science department. Thomson Reuters` intellectual property and science are a continuation of scientific citation indices, which were proposed by Eugene Garfield in the 1950s and produced by the Institute for Scientific Information since 1964. Since 1997, three specialised indexes of scientific citation have been combined on a web platform called Web of Science.

Today, the Web of Science platform contains 15 databases created by Clarivate Analytics and its partners. In total, the platform indexes are more than 33,000 publications, since 1864, from all disciplines.

The main part of the collection is the scientometric database Web of Science Core Collection (WoSCC), which consists of indices of scientific citations of periodicals in natural and technical sciences- Science Citation Index Expanded (SCIE), of social- Social Sciences Citation Index (SSCI) and humanitarian- Art and Humanities Citation Index (AHCI). Since 2015, WoSCC has been expanded by the multidisciplinary Emerging Source Citation Index (ESCI) the archive is deepened by 2005.

WoSCC also presents citation indices of the best conferences Conference Proceedings Citation Index (CPCI) and the monograph Book Citation Index BkCI and two chemical indices: Current Chemical Reactions (CCR-EXPANDED) and Index Chemicus (IC).

Selection for up to three main journal indexes SCIE, SSCI, AHCI is carried out by four parameters:

1. Content;
2. Publishing standards;
3. International composition;
4. Citation analysis.

Criteria and procedure for selecting journals for the Web of Science Core Collection.

The publication selected for the collection is indexed in full, for each publication Title, authors, institutions, source data of the publication, resume, place of work, financial support and a list of references. Full indexing of all authors, all affiliations and bibliographies allows you to correctly calculate the citation of each publication, each author, each institution and determine the priority areas of research, the most influential publications of scientists, institutions. For SCIE and SSCI publications, the Impact factor is calculated which is an indicator of the publications influence. WoSCC indexes more than 20 thousand journals, the impact factor has more than 11 thousand publications.

The extended version of the reference manager EndNote Online allows scientists to create their own file of articles and design a publication in the format of almost 4,000 publications, including 11 styles that are recommended for the list of references in dissertations.