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Browser metrics

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Metrics available in the Metrics Search menu. Each metric contains the following information. Some metrics may not have tag information.

  • Tags: Information to identify the collection target (agent name, IP, etc.)
  • Fields: Actual measured values (CPU usage, response time, etc.)

rum_page_load_each_page

  • Collects page load time metrics (references Navigation Timing from the Performance API)
  • Page load response time covers up to the loadEventEnd point
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-

Fields

FieldUnitDescriptionRemarks
page_load_backend_timemillisecondAverage processing time in the backend area during page loadTime elapsed from startTime to responseEnd
page_load_frontend_timemillisecondAverage processing time in the frontend area during page loadTime elapsed from domInteractive to loadEventEnd
page_load_redirect_timemillisecondAverage amount of redirection time spent by the browser when loading web pagesTime elapsed from redirectStart to redirectEnd
page_load_cache_timemillisecondAverage time spent by a browser to search cached resources while loading web pagesTime elapsed from fetchStart to domainLookupStart
page_load_dns_timemillisecondAverage time spent by a browser to look up website domains while loading web pagesTime elapsed from domainLookupStart to domainLookupEnd
page_load_connect_timemillisecondAverage amount of network connection time to the server spent by the browserTime elapsed from connectStart to connectEnd
page_load_ssl_timemillisecondAverage TCP handshake time spent by a browser when loading web pagesTime elapsed from secureConnectionStart to connectEnd
page_load_firstbyte_timemillisecondAverage time spent from the browser sending network requests while fetching web pages to the first byte receptions from the serverTime elapsed from requestStart to responseStart
page_load_download_timemillisecondAverage time spent for a browser to download resources from the server while loading web pagesTime elapsed from responseStart to responseEnd
page_load_domcontentloaded_timemillisecondAverage time for a web page to render its initial content and become interactiveTime elapsed from domContentLoadedEventStart to domContentLoadedEventEnd
page_load_domload_timemillisecondAverage time for a web page to load all resources, finish rendering, and become interactiveTime elapsed from loadEventStart to loadEventEnd
page_load_render_timemillisecondAverage time spent rendering resources downloaded from the server to the screen and completing page load eventsTime elapsed from domInteractive to domComplete
page_load_event_timemillisecondAverage time for the load event to complete as measured by the browserTime elapsed from the start to loadEventEnd
page_load_durationmillisecondAverage time taken by the browser to fully load a web pageTime to complete additional interactions after loadEventEnd, page load completion time measured by the browser agent
page_load_countCountPage Load Count-

rum_page_load_browser_each_page

  • Collects page load metrics by browser
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
browser_nameBrowser name-

Fields

FieldUnitDescriptionRemarks
page_load_countCountPage Load Count-
page_load_durationmillisecondAverage time taken by the browser to fully load a web page-

rum_page_load_device_each_page

  • Collects page load metrics by device
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
device_nameDevice name-

Fields

FieldUnitDescriptionRemarks
page_load_countCountPage Load Count-
page_load_durationmillisecondAverage time taken by the browser to fully load a web page-

rum_page_load_os_each_page

  • Collects page load metrics by OS
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
device_nameDevice name-

Fields

FieldUnitDescriptionRemarks
page_load_countCountPage Load Count-
page_load_durationmillisecondAverage time taken by the browser to fully load a web page-

rum_router_change_each_page

  • Collects metrics related to page transition events in single-page applications (SPA)
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
completed_loadingWhether a page change completes or notPage change is not complete and appears as false when switching to another page

Fields

FieldUnitDescriptionRemarks
router_change_countCountSPA page change count-
router_change_timemillisecondAverage time taken to fully change pages-

rum_resource_each_page

  • Collects metrics related to resource response times from web pages
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
is3rdPartyWhether the resource is called from a third partyIf the domain of the web page is different from the domain of the called resource, true is passed.
request_hostURL host of the resource-
request_pathURL path of the resource-
typeResource typecss, image, script, etc.

Fields

FieldUnitDescriptionRemarks
resource_dns_timemillisecondAverage time spent by a browser to look up website domains while loading web pagesTime elapsed from domainLookupStart to domainLookupEnd
resource_connect_timemillisecondAverage amount of network connection time to the server spent by the browserTime elapsed from connectStart to connectEnd
resource_ttfb_timemillisecondAverage time spent from the browser sending network requests while fetching web pages to the first byte receptions from the serverTime elapsed from requestStart to responseStart
resource_download_timemillisecondAverage time spent for a browser to download resources from the server while loading web pagesTime elapsed from responseStart to responseEnd
resource_durationmillisecondAverage time taken by the browser to fully load a web pageTime to complete additional interactions after loadEventEnd, page load completion time measured by the browser agent
page_load_countCountPage Load Count-
resource_sizeByteResource size-

rum_ajax_each_page

  • Collects AJAX response time and status code metrics
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
request_hostHost of the AJAX request URL-
request_pathPath of the AJAX request URL-

Fields

FieldUnitDescriptionRemarks
ajax_1xx_countCountNumber of AJAX cases with the response status code between 100 and 200-
ajax_2xx_countCountNumber of AJAX cases with the response status code between 200 and 300-
ajax_3xx_countCountNumber of AJAX cases with the response status code between 300 and 400-
ajax_4xx_countCountNumber of AJAX cases with the response status code between 400 and 500-
ajax_5xx_countCountNumber of AJAX cases with the response status code of 500 or higher-
ajax_countCountAJAX Count-
ajax_durationmillisecondAverage response time for AJAX requests-
ajax_fail_countCountNumber of failed AJAX requests-

rum_error_total_each_page

  • Collects browser error metrics
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescriptionRemarks
page_groupPage Group-
browserBrowser name-
deviceDevice name-
osOS name-
error_messageError Message-
error_typeError Type-

Fields

FieldUnitDescriptionRemarks
error_countCountError Count-

rum_web_vitals_each_page

  • Collects Core Web Vitals metrics
  • Collection interval: 5 seconds
  • Statistical data: 5 minutes, 1 hour

Tags

TagDescription
page_groupPage Group

Fields

FieldUnitDescription
web_vitals_clsScoreScore that indicates how much the layout shifts during page load (Cumulative Layout Shift)
web_vitals_fidmillisecondAverage time for the browser to respond after the user's first input (First Input Delay)
web_vitals_lcpmillisecondAverage time for the largest content element on the website to load (Largest Contentful Paint)
web_vitals_inpmillisecondAverage time from user interaction to the next screen paint (Interaction to Next Paint)