Build, test, and debug regular expressions
This regex parses CDN node access log lines, capturing fields such as CDN node IP, client IP, timestamp, HTTP verb, request URL components (delivery type code, delivery type, bucket ID, file path), status code, content length, bytes transferred, duration, cache status, user agent, region IDs, download metadata, host, request ID, and cache tier. It is useful for analyzing content delivery performance, caching behavior, and user requests.