AWS Route 53 health-check probes from Amazon's monitoring fleet.
Official: docs.aws.amazon.com/Route53/latest/DeveloperGuide/health-checks-creating-values.html·Vendor: Amazon
Send the User-Agent to the API, device, OS, browser, and bot detection come back in one response. Amazon Route53 Health Check is identified by name when the string matches.
curl -s "https://api.parseapi.com/useragent" \ -H "User-Agent: Amazon Route 53 Health Check Service; ref:a7d9cf75-3fa5-4d36-914c-ef344ec9b297; report http://amzn.to/1vsZADi" \ -H "X-Api-Key: $PARSEAPI_KEY"
Real strings from our archive that resolve to Amazon Route53 Health Check. Each opens a full breakdown.