This is something like it, though no finished standard exists: https://en.wikipedia.org/wiki/HAR_%28file_format%29 https://en.wikipedia.org/wiki/HAR_%28file_for

This is something like it, though no finished standard exists: https://en.wikipedia.org/wiki/HAR_%28file_format%29 https://en.wikipedia.org/wiki/HAR_%28file_format%29 (An abandoned spec is at https://w3c.github.io/web-performance/specs/HAR/Overview.html https://w3c.github.io/web-performance/specs/HAR/Overview.htm...)