Data on online job postings represents an important source of information for local labour markets. Many countries lack statistics on labour demand that are sufficiently up-to-date and disaggregated across regions, sectors and occupations. Web-scraped data from online job postings can provide further insights on the trends in labour demand and the skills needed across regions, sectors and occupations. This paper assesses the comparability and validity between Lightcast and other data sources for Austria, Belgium, Bulgaria, Germany, Hungary, the Netherlands, Portugal, Romania, Spain and Sweden, for the years 2019 to 2022 across regions, sectors and occupations. It concludes with some recommendations for labour market analysts that want to use data on online job postings for assessing labour demand trends.