# Sample HAR file for testing network tools, free and CC0 1 HAR test file of 3.6 KB. A direct URL, the file's SHA-256 and CC0, so curl and CI can fetch it with no signup and no keys. The page: . A HAR file is the JSON a browser's network panel exports: a log of requests, responses, timings and headers. Tools that read them include performance dashboards, test harnesses and support pipelines where a user is asked to attach a network trace. `har/simple-3-requests.har` describes one page and three requests (a document, a stylesheet and an image) with fixed start times and timings. Because every timestamp is pinned, the file is the same on every build rather than a record of when it happened to be generated, so it can be committed as a test fixture and compared byte for byte. It is valid JSON, so it doubles as a test of nested-structure handling: a HAR is considerably deeper than the flat objects most JSON fixtures provide, and it is served as `application/json`, which is worth checking against tools that expect a `.har` extension to mean something else. Related formats: [JSON](https://loremfile.dev/json) and the [web app manifest](https://loremfile.dev/webmanifest). ## Files | Path | Size | MIME | Properties | |---|---|---|---| | [`har/simple-3-requests.har`](https://loremfile.dev/har/simple-3-requests.har) | 3.6 KB (3,636 bytes) | `application/json; charset=utf-8` | 3 entries | The same list as JSON: .