VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
logit.io - Logit.io provides complete observability of logs, metrics and traces. The platform also offers alerting & monitoring, as well as Prometheus, OpenSearch & Grafana. Ingest any type of data to see real-time insights about your applications and services
Optimizely - A/B testing you'll actually use.
AppOptics - Application performance management and infrastructure monitoring.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.
Plumbr - Plumbr is an application performance platform that provides insights to users on the performance of their applications.