Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The HTTP NEL response header is used to configure network request logging.

Header type Response header
Forbidden header name no


Network Error Logging
# nel-response-header
NEL: { "report_to": "name_of_reporting_group", "max_age": 12345, "include_subdomains": false, "success_fraction": 0.0, "failure_fraction": 1.0 }

Browser compatibility

BCD tables only load in the browser

See also