How is the data retrieved?
This data is scraped from Indeed. The area you choose is within a 25KM radius and goes through 30 pages of Job postings (400+ Jobs).
How accurate is this?
The accuracy is quite high as all we do is look at each job posting. If a technology in our list is present we up a counter. The only issue is some job postings list multiple programming languages/technologies so it can't always be completely accurate. If a technology is the highest on the chart, this means it was the most mentioned across all job posting in your area.