Synthetic
Get Lab Vs Field
Compare a CS lab run against RUM field p75, per device. The comparison axis is
the lab-measurable CWV (LCP/FCP/CLS/TTFB); INP is field-only (shown beside the lab
TBT proxy). Also returns the CS lab CommerceScore and our field Experience Score
side by side. Latest run unless a run id is given; field reflects window_days.
bearerAuthheader
AuthorizationBearer <token>API token generated from the fastmon dashboard (Account → API Token) or at organization level (fmo_…, one that outlives its creator). Send as Authorization: Bearer fm_... or paste the full token (including its prefix) into the Authorize dialog.
page_id*Page IdFormat
uuidsite_id*Site IdFormat
uuidwindow_days?Window DaysRange
1 <= value <= 90Default
7commerce_score_analysis_id?|Target a specific run; default latest
Successful Response
application/json- response
page_id*Page IdFormat
uuidurl*Urlwindow_days*Window Daysdevices*array<>GET
curl -X GET 'https://api.fastmon.eu/sites/497f6eca-6276-4993-bfeb-53cbbbba6f08/synthetic/pages/497f6eca-6276-4993-bfeb-53cbbbba6f08/lab-vs-field'{ "page_id": "ef107761-0142-48fe-9dcd-5140d1ae58db", "url": "string", "window_days": 0, "devices": [ { "device_type": "desktop", "lab_score": 0, "experience_score": 0, "experience_grade": "string", "field_samples": 0, "field_sufficient": true, "metrics": [ { "metric": "string", "lab_value": 0, "field_p75": 0, "verdict": "string" } ], "field_inp_p75_ms": 0, "lab_tbt_ms": 0 } ]}