| Parameter | Type | Mandatory/Optional | Description | Example |
|---|---|---|---|---|
| lhConfig | object | Optional | Allows you to pass Lighthouse-specific configurations | “lhConfig”:{ |
| extends: “lighthouse:default”, } | ||||
| formFactor | string | Optional | Allows you to include or exclude mobile-specific audits for performance metrics. Possible values for the argument: mobile (default), desktop
|
“formFactor”: “mobile” |
| screenEmulation | object | Optional | Allows you to set the screen emulation parameters | “screenEmulation”: { } |
| mobile | boolean | Optional | Allows you to apply overlay scrollbars and other mobile-specific screen emulation | “mobile”: true |
| width | integer | Optional | Allows you to set the width of the screen | “width”: 412 |
| height | integer | Optional | Allows you to set the height of the screen | “height”: 823 |
| deviceScaleFactor | float | Optional | Allows you to set the device scale factor | “deviceScaleFactor”: 1.75 |
| disabled | boolean | Optional | Allows you to disable the emulation | “disabled”: false |
| emulatedUserAgent | string | Optional | Allows you to pass you agent value | “emulatedUserAgent”: “Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Mobile Safari/537.36” |
| throttlingMethod | string | Optional | Allows you to enable or disable throttling. Valid values for the argument: simulate (default), provided (this disables the lighthouse default throttling) |
“throttlingMethod”: “simulate” |
| throttling | string | Optional | Allows you to set predefined throttling parameters. Possible values for the argument: mobileSlow4G (default), mobileRegular3G, desktopDense4G
|
“throttling”: “mobileRegular3G” |
| lhConfig.throttling | object | Optional | Allows you to set custom throttling parameters | |
| rttMs | integer | Optional | Represents the round-trip time in milliseconds | “rttMs”: 150 |
| throughputKbps | float | Optional | Represents the throughput in kilobits per second | “throughputKbps”: 1638.4 |
| requestLatencyMs | float | Optional | Represents the request latency in milliseconds | “requestLatencyMs”: 562.5 |
| downloadThroughputKbps | float | Optional | Represents the download throughput in kilobits per second | “downloadThroughputKbps”: 1474.5600000000002 |
| uploadThroughputKbps | float | Optional | Represents the upload throughput in kilobits per second | “uploadThroughputKbps”: 675 |
| cpuSlowdownMultiplier | integer | Optional | Represents the CPU slowdown multiplier | “cpuSlowdownMultiplier”: 4 |
| executorOutput | string | Optional | Allows you to get the Lighthouse report as a JSON response from the JavaScript executor | “executorOutput”: “json” |
| sessionFail | boolean | Optional | Allows you to mark the test session “failed” | “assertResult”: {“sessionFail”: true} |
| onlyCategories | array | Optional | Allows you to run specified categories | “lhConfig”:{ |
| extends: “lighthouse:default”,”onlyCategories”:[]} | ||||
| onlyAudits | array | Optional | Allows you to run specified audits | “lhConfig”:{ |
| extends: “lighthouse:default”,”onlyAudits”:[]} |
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