I use Apache Benchmarks as a simple load tester from Windows 10 Bash (WSL). To get up and running run Bash from your Start Menu (I’m using Ubuntu but there are now other variants possible)

apt-get update
apt-get install apache2-utils

-- run 1000 requests at 100 concunnrent connections
-- remember the final / on the url
ab -n 1000 -c 100

-- dont look at Content-Length. Useful if caching or adverts or dynamic content
ab -n 1000 -c 100 -l http://