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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
# Adding a new metric? We have docs for that!
---
$tags:
- 'Core :: DOM: Core & HTML'
perf:
largest_contentful_paint:
type: timing_distribution
time_unit: millisecond
description: >
Time from navigation start to largest contentful paint.
bugs:
data_reviews:
notification_emails:
- perf-telemetry-alerts@mozilla.com
expires: never
telemetry_mirror: PERF_LARGEST_CONTENTFUL_PAINT_MS
largest_contentful_paint_from_response_start:
type: timing_distribution
time_unit: millisecond
description: >
Time from response start to largest contentful paint.
bugs:
data_reviews:
notification_emails:
- perf-telemetry-alerts@mozilla.com
expires: never
telemetry_mirror: PERF_LARGEST_CONTENTFUL_PAINT_FROM_RESPONSE_START_MS
page_load:
type: event
description: >
Recorded when a top level content document has been loaded.
bugs:
data_reviews:
notification_emails:
- perf-telemetry-alerts@mozilla.com
- dpalmeiro@mozilla.com
expires: never
extra_keys:
load_time:
description:
"Time between loadEventStart and navigationStart, in ms."
type: quantity
unit: ms
dns_lookup_time:
description:
"Time taken to perform dns lookup of the top level document, in ms."
type: quantity
unit: ms
response_time:
description:
"Time between responseStart and navigationStart, in ms."
type: quantity
unit: ms
fcp_time:
description:
"Time between firstContentfulPaint and navigationStart, in ms."
type: quantity
unit: ms
lcp_time:
description:
"Time between largestContentfulPaint and navigationStart, at the point of onLoad firing, in ms. This may differ from the final LCP value as reported through the LCP histogram."
type: quantity
unit: ms
js_exec_time:
description:
"Time spent executing JS during page load, in ms."
type: quantity
unit: ms
redirect_time:
type: quantity
description:
"Time spent in redirections for the top level document."
unit: ms
redirect_count:
description:
"Number of redirections for the top level document."
type: quantity
unit: integer
load_type:
description:
"One of normal,reload,stop,link,history,error or other."
type: string
same_origin_nav:
description:
"If true, a normal navigation was performed on the same origin."
type: boolean
http_ver:
description:
"Version of HTTP protocol used."
type: quantity
unit: integer
trr_domain:
description:
"TRR domain used."
type: string
send_in_pings:
- pageload
bloburl:
resolve_stopped:
type: counter
description: >
Counts how many times we do not resolve a blob URL
because of different partition keys
bugs:
data_reviews:
data_sensitivity:
- technical
notification_emails:
- amadan@mozilla.com
expires: 127
telemetry_mirror: BLOBURL_RESOLVE_STOPPED