Troubleshoot blackbox exporter errors

I had a frustrating issue where prometheus blackbox exporter wasn’t able to check one of my websites and I couldn’t figure out why. I finally found this site which explained you can append &debug=true to the end of your probe in a URL string talking directly to blackbox. For example: http://prometheus:9115/probe?module=http_2xx&target=http://customsite.com:8096/web/&debug=true That finally got me…