productivity saas app:
Frontend: html/css/js (all vanilla)
Backend: windows server, c#, .net
Database: MySQL
Infrastructure: all at AWS (EC2, RDS, S3, Cloudfront, ACM, Route53)
Email: postmark
Blog en marketing website: static (S3+cloudfront), CMS custom build
Monitoring: uptimerobot
Ip to Location lookup: ip2location
User manual: Manula
Payements: FastSpring and 2Checkout
Customer support: Freshdesk