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har.fyi 🧪

HAR blob

Appears in: pages table

JSON-encoded blob of HAR data for the page. See payload.json, for example.

The actual schema of the HAR object is liable to change, depending on a number of factors including the output from WebPageTest, custom metrics, Wappalyzer, Lighthouse, and more.

Schema

startedDateTime

The date and time the test started, in ISO 8601 format

title

The title of the page

id

The ID of the test

testID

The WebPageTest ID of the test

pageTimings

The page load timings

_loadTime

The time it took to load the page, in milliseconds

_docTime

The time it took to load the page content, in milliseconds

_fullyLoaded

The time it took for the page to load and network activity to go quiet, in milliseconds

_bytesOut

The number of bytes sent by the browser

_bytesOutDoc

The number of bytes sent by the browser at the time of the DOMContentLoaded event

_bytesIn

The number of bytes received by the browser

_bytesInDoc

The number of bytes received by the browser at the time of the DOMContentLoaded event

_requests

The number of requests made by the browser

_requestsFull

The number of requests made by the browser at the time of the load event

_requestsDoc

The number of requests made by the browser at the time of the DOMContentLoaded event

_responses_200

The number of responses with a 200 status code

_responses_404

The number of responses with a 404 status code.

_responses_other

The number of responses with a status code other than 200 or 404.

_result

The result of the test.

_testStartOffset

The offset from the test start time, in milliseconds.

_cached

Indicates whether the page was loaded from cache (1 if cached, 0 otherwise).

_optimization_checked

Indicates whether optimization checks were performed (1 if checked, 0 otherwise).

_main_frame

Indicates whether the request was for the main frame (1 if main frame, 0 otherwise).

_loadEventStart

The time when the load event started, in milliseconds.

_loadEventEnd

The time when the load event ended, in milliseconds.

_domContentLoadedEventStart

The time when the DOMContentLoaded event started, in milliseconds.

_domContentLoadedEventEnd

The time when the DOMContentLoaded event ended, in milliseconds.

_URL

The URL of the page.

_connections

The number of open connections made by the browser.

_final_base_page_request

The final base page request ID.

_final_base_page_request_id

The final base page request ID.

_final_url

The final URL of the page.

_domInteractive

The time when the DOM became interactive, in milliseconds.

_firstPaint

The time of the first paint, in milliseconds.

_firstContentfulPaint

The time of the first contentful paint, in milliseconds.

_firstMeaningfulPaint

The time of the first meaningful paint, in milliseconds.

_renderBlockingCSS

The time spent on render-blocking CSS, in milliseconds.

_renderBlockingJS

The time spent on render-blocking JavaScript, in milliseconds.

_metadata

Metadata related to the test.

_TTFB

The time to first byte, in milliseconds.

_basePageSSLTime

The time spent on SSL for the base page, in milliseconds.

_score_cache

The cache score of the page.

_score_cdn

The CDN score of the page.

_score_gzip

The gzip score of the page.

_score_cookies

The cookies score of the page.

_score_keep-alive

The keep-alive score of the page.

_score_minify

The minify score of the page.

_score_combine

The combine score of the page.

_score_compress

The compress score of the page.

_score_etags

The ETags score of the page.

_score_progressive_jpeg

The progressive JPEG score of the page.

_gzip_total

The total size of resources after gzip compression, in bytes.

_gzip_savings

The savings achieved through gzip compression, in bytes.

_minify_total

The total size of minified resources, in bytes.

_minify_savings

The savings achieved through minification, in bytes.

_image_total

The total size of images, in bytes.

_image_savings

The savings achieved through image optimization, in bytes.

_base_page_cdn

The CDN used for the base page.

_cpuTimes

CPU times related to the test.

_cpuTimesDoc

CPU times related to the document.

_v8Stats

V8 engine statistics.

_tester

The tester name.

_start_epoch

The start epoch timestamp.

_osVersion

The operating system version.

_os_version

The operating system version.

_osPlatform

The operating system platform.

_date

The date.

_browserVersion

The browser version.

_browser_version

The browser version.

_fullyLoadedCPUms

The fully loaded CPU time in milliseconds.

_fullyLoadedCPUpct

The fully loaded CPU percentage.

_audit_issues

The number of audit issues.

_document_URL

The URL of the document.

_document_hostname

The hostname of the document.

_document_origin

The origin of the document.

_viewport

The viewport information.

_domElements

The number of DOM elements.

_domComplete

The time taken for the DOM to complete, in milliseconds.

_origin_dns

DNS information about the origin.

_detected

Detected technologies and applications.

_detected_apps

Detected applications.

_detected_technologies

Detected technologies.

_detected_raw

Raw detection data.

_base_page_ip_ptr

The PTR record of the base page IP.

_base_page_cname

The CNAME record of the base page.

_base_page_dns_server

The DNS server of the base page.

_browser_name

The browser name.

_eventName

The event name.

_test_run_time_ms

The test run time in milliseconds.

_testUrl

The test URL.

_custom

Custom properties.

_00_reset

A reset value.

_Colordepth

The color depth of the screen.

_Dpi

The DPI (dots per inch) of the screen.

_Images

The number of images on the page.

_Resolution

The screen resolution.

_a11y

Accessibility information.

_almanac

Almanac information.

_aurora

Aurora information.

_avg_dom_depth

The average depth of the DOM.

_cms

Content Management System (CMS) information.

[description]

_css

[description]

_css-variables

[description]

_doctype

[description]

_document_height

[description]

_document_width

[description]

_ecommerce

[description]

_element_count

[description]

_event-names

[description]

_fugu-apis

[description]

_has_shadow_root

[description]

_img-loading-attr

[description]

_initiators

[description]

_inline_style_bytes

[description]

_javascript

[description]

_lib-detector-version

[description]

_localstorage_size

[description]

_markup

[description]

_media

[description]

_meta_viewport

[description]

_num_iframes

[description]

_num_scripts

[description]

_num_scripts_async

[description]

_num_scripts_sync

[description]

_observers

[description]

_origin-trials

[description]

_performance

[description]

_privacy

[description]

_pwa

[description]

_quirks_mode

[description]

_responsive_images

[description]

_robots_meta

[description]

_robots_txt

[description]

_sass

[description]

_security

[description]

_sessionstorage_size

[description]

_structured-data

[description]

_third-parties

[description]

_usertiming

[description]

_valid-head

[description]

_well-known

[description]

_wpt_bodies

[description]

_interactivePeriods

[description]

_lastVisualChange

[description]

_render

[description]

_visualComplete85

[description]

_visualComplete90

[description]

_visualComplete95

[description]

_visualComplete99

[description]

_visualComplete

[description]

_SpeedIndex

[description]

_largestPaints

[description]

_LargestContentfulPaintType

[description]

_LargestContentfulPaintNodeType

[description]

_chromeUserTiming

[description]

_blinkFeatureFirstUsed

[description]

_TTIMeasurementEnd

[description]

_LastInteractive

[description]

_testID

[description]

_run

[description]

_step

[description]

_effectiveBps

[description]

_domTime

[description]

_aft

[description]

_titleTime

[description]

_domLoading

[description]

_server_rtt

[description]

_CrUX

[description]

_edge-processed

[description]

_consoleLog

[description]