Timeline
Get timeline
Gets a day timeline of the different loading metrics.
GET /{website-id}/pages/{page-id}/timeline?device={device}
The device and date range are set using these querystring parameters:
| Querystring parameter | Description |
|---|---|
| date | The date range in yyyyMMdd-yyyyMMdd format. Defaults to last 90 days. Example: 20230401-20230501 |
| device | Mandatory. Either desktop or mobile |
The result looks like this:
{
"result": [
{
"date": "2023-03-31",
"count": 1,
"lcp": 730,
"fcp": 730,
"speed_index": 792,
"tbt": 0,
"cls": 0,
"ttfb": 504,
"tti": 730,
"dom_elements": 175,
"dom_max_depth": 9,
"dom_ready": 652,
"on_load": 857,
"dns_time": 11,
"connect_time": 28,
"server_time": 463,
"transfer_time": 2
},
{
"date": "2023-04-01",
"count": 1,
"lcp": 383,
"fcp": 383,
"speed_index": 397,
"tbt": 0,
"cls": 0,
"ttfb": 92,
"tti": 383,
"dom_elements": 175,
"dom_max_depth": 9,
"dom_ready": 259,
"on_load": 531,
"dns_time": 10,
"connect_time": 33,
"server_time": 47,
"transfer_time": 9
},
...
]
}The properties in each array item are:
| Property | Data type | Description |
|---|---|---|
| date | yyyyMMdd | The date that the metrics are averaged over |
| fcp | integer | First Contentful Paint (ms) |
| lcp | integer | Largest Contentful Paint (ms) |
| cls | float | Cumulative Layout Shift (unitless) |
| tbt | integer | Total Blocking Time (ms) |
| ttfb | integer | Time To First Byte (ms) |
| tti | integer | Time To Interactive (ms) |
| speed_index | integer | Speed Index (ms) |
| dns_time | integer | DNS lookup time (ms) |
| connect_time | integer | Time to establish HTTPS connection |
| server_time | integer | Time waiting for the server to process the request |
| transfer_time | integer | The time it takes for the response to be transferred over the wire |
| dom_ready | integer | The time it takes for the DOM to render |
| on_load | integer | The time it takes before the page is fully loaded (the "load" event is fired) |
| dom_elements | integer | The number of DOM elements in the rendered page |
| dom_max_depth | integer | The maximum depth of the DOM graph in the rendered page |