Dashbird is described as 'Deliver world-class serverless applications. Log based AWS Lambda monitoring, tracing, error alerting and debugging for agile businesses. 2-minute setup, no code changes!'. There are three alternatives to Dashbird, not only websites but also apps for SaaS. The best alternative is AWS CloudWatch. It's not free, so if you're looking for a free alternative, you could try IOpipe or Thundra.
Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications running on AWS. It collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in AWS resources.
Built for zero-overhead debugging, monitoring, and observability of AWS Lambda environments, Thundra makes solving difficult serverless performance problems straightforward with correlated metrics, logs, and traces.