UI Telemetry Resource Timing Event

UI Telemetry Resource Timing events capture network performance metrics related to loading an application’s resources. The event includes requests initiated with either the Fetch API or the XMLHttpRequest API. This object is available in API version 61.0 and later.

For details about event monitoring, see the Trailhead Event Monitoring module or REST API Developer’s Guide.

For information about resource timing attributes, including a diagram of the order that attributes follow, see section 4.6 of the W3 Standards on Resource Timing.

Fields 

APP_NAME 
  • Type: String
  • Description: The name of the application that the user accessed.

BROWSER_NAME 
  • Type: String
  • Description: The name of the browser that the user accessed.
  • Examples: Chrome, Safari

BROWSER_VERSION 
  • Type: String
  • Description: The version of the browser that the user accessed in major.minor version format. Some browsers don’t provide a minor version.

CLIENT_GEO 
  • Type: String
  • Description: The geolocation of the client in the form of <Country>/<State|Province>.
  • Example: United States/California

CLIENT_ID 
  • Type: String
  • Description: The API client ID.

CLIENT_IP 
  • Type: String
  • Description: The IP address of the client that’s using Salesforce services. A Salesforce internal IP, such as a login from AppExchange, is shown as “Salesforce.com IP.”
  • Example: 96.43.144.26

CONNECT_END 

  • Type: Number

  • Description: The time in milliseconds when the browser establishes a connection to a server so that it can retrieve a resource.

    To calculate the Transport Control Protocol (TCP) handshake time, subtract the CONNECT_START time from the CONNECT_END time.

CONNECT_START 

  • Type: Number

  • Description: The time in milliseconds after the browser completes the Domain Name System (DNS) lookup and begins connecting to a server so that it can retrieve a resource.

    To calculate the Transport Control Protocol (TCP) handshake time, subtract the CONNECT_START time from the CONNECT_END time.

CONNECTION_TYPE 

  • Type: String

  • Description: The type of connection.

  • Possible values:

    • CDMA1x
    • CDMA
    • EDGE
    • EVDO0
    • EVDOA
    • EVDOB
    • GPRS
    • HRPD
    • HSDPA
    • HSUPA
    • LTE
    • WIFI

DECODED_BODY_SIZE 
  • Type: Number
  • Description: The size in octets of the HTTP message body after the removal of any applied content encoding.

DEVICE_MODEL 
  • Type: String
  • Description: The name of the device model.
  • Examples: iPad, iPhone

DEVICE_PLATFORM 

  • Type: String

  • Description: The type of application experience in name:experience:form format.

  • Possible values:

    • name - APP_BUILDER, CUSTOM, S1, SFX
    • experience - BROWSER, HYBRID
    • form - DESKTOP, PHONE, TABLET

DEVICE_SESSION_ID 
  • Type: String
  • Description: The unique identifier of the user’s session based on page load time. When the user reloads a page, a new session is started.
  • Example: 321a1ddfaf924803a075f1e69fc87bc06f53ccd0

DOMAIN_LOOKUP_END 

  • Type: Number

  • Description: The time in milliseconds when the browser completes a DNS lookup for a resource.

    To calculate the DNS lookup time, subtract the DOMAIN_LOOKUP_START time from the DOMAIN_LOOKUP_END time.

DOMAIN_LOOKUP_START 

  • Type: Number

  • Description: The time in milliseconds when the browser starts a DNS lookup for a resource.

    To calculate the DNS lookup time, subtract the DOMAIN_LOOKUP_START time from the DOMAIN_LOOKUP_END time.

DURATION 
  • Type: Number
  • Description: The total duration in milliseconds of the event from the START_TIME to the RESPONSE_END time.

ENCODED_BODY_SIZE 
  • Type: Number
  • Description: The size in octets of the HTTP message body before the removal of any applied content encoding.

EVENT_TYPE 
  • Type: String
  • Description: The type of event. The value is always UITelemetryResourceTiming.

FETCH_START 

  • Type: Number

  • Description: The time in milliseconds when the browser starts to fetch a resource from the server, not including redirects. Occurs before the DNS lookup and the connection to the server is established.

    To calculate the total time used to fetch a resource without redirects, subtract the FETCH_START time from the RESPONSE_END time.

FIRST_INTERIM_RESPONSE_START 

  • Type: Number

  • Description: The time in milliseconds when the browser receives the first byte of the interim 1xx response from the server.

    To calculate the time from when the browser sends a request to when it starts to receive an interim response, subtract the REQUEST_START time from the FIRST_INTERIM_RESPONSE_START time.

INITIATOR_TYPE 
  • Type: String
  • Description: The HTML element that initiates the resource load.
  • Examples: css, image, link

LOGIN_KEY 
  • Type: String
  • Description: The string that ties together all events in a user’s login session. It starts with a login event and ends with either a logout event or the user session expiring.
  • Example: GeJCsym5eyvtEK2I

NEXT_HOP_PROTOCOL 
  • Type: String
  • Description: The Application-Layer Protocol Negotiation (ALPN) Protocol ID that fetches the resource.
  • Examples: http/0.9, http/1.0, h2, h2c, h3

ORGANIZATION_ID 
  • Type: String
  • Description: The 15-character ID of the org.
  • Example: 00D000000000123

OS_NAME 
  • Type: String
  • Description: The operating system name, derived from USER_AGENT.
  • Examples: Android, iOS, OSX, Window

OS_VERSION 
  • Type: String
  • Description: The operating system version, derived from USER_AGENT.

PAGE_CONTEXT 
  • Type: String
  • Description: The name of the component hosting the main content of the page.
  • Example: clients:cardsContainer

PAGE_ENTITY_ID 
  • Type: String
  • Description: The unique entity identifier of the event.
  • Example: 0013000000I3zJAAAZ

PAGE_ENTITY_TYPE 
  • Type: String
  • Description: The entity type of the event.
  • Examples: task, contacts

PAGE_URL 
  • Type: String
  • Description: Relative URL of the top-level Lightning Experience page that the user opened. The page can contain one or more Lightning components. Multiple record IDs can be associated with PAGE_URL.
  • Example: /sObject/0064100000JXITSAA5/view

REDIRECT_END 

  • Type: Number

  • Description: The time in milliseconds when the browser receives the last byte of the response of the final redirect.

    To calculate the total redirection time, subtract the REDIRECT_START time from the REDIRECT_END time.

REDIRECT_START 

  • Type: Number

  • Description: The time in milliseconds when the browser starts to fetch a resource that initiates a redirect.

    To calculate the total redirection time, subtract the REDIRECT_START time from the REDIRECT_END time.

RENDER_BLOCKING_STATUS 

  • Type: String

  • Description: The status that indicates whether the resource can block or delay the browser from rendering page content.

  • Possible values:

    • blocking - The resource can block rendering.
    • non-blocking - The resource doesn’t block rendering.

REQUEST_ID 
  • Type: String
  • Description: The unique ID of a single transaction. A transaction can contain one or more events. Each event in a given transaction has the same REQUEST_ID.
  • Example: 3nWgxWbDKWWDIk0FKfF5DV

REQUEST_START 

  • Type: Number

  • Description: The time in milliseconds when the browser starts to request the resource from the server.

    To calculate the total request time, subtract the REQUEST_START time from the RESPONSE_START time.

RESPONSE_END 

  • Type: Number

  • Description: The time in milliseconds when the browser receives the resource’s last byte or when the transport connection closes, whichever comes first.

    To calculate the total time used to fetch a resource without redirects, subtract the FETCH_START time from the RESPONSE_END time.

RESPONSE_START 

  • Type: Number

  • Description: The time in milliseconds when the browser receives the first byte of the response from the server.

    To calculate the total request time, subtract the REQUEST_START time from the RESPONSE_START time.

RESPONSE_STATUS 
  • Type: Number
  • Description: The HTTP response status code.
  • Example: 200

SDK_APP_TYPE 

  • Type: String

  • Description: The mobile SDK application type.

  • Possible values:

    • HYBRID
    • HYBRIDLOCAL
    • HYBRIDREMOTE
    • NATIVE
    • REACTNATIVE

SDK_APP_VERSION 
  • Type: String
  • Description: The mobile SDK application version number.
  • Example: 5.0

SDK_VERSION 
  • Type: String
  • Description: The mobile SDK version number.
  • Example: 2.1.0

SECURE_CONNECT_START 

  • Type: Number

  • Description: The time in milliseconds when the browser begins the handshake process that secures the connection.

    To calculate the Transport Layer Security (TLS) time, subtract the SECURE_CONNECT_START time from the REQUEST_START time.

SERVER_REQUEST_ID 
  • Type: String
  • Description: The requestId for the server request that’s used to find associated server logs.
  • Example: 346000000087551ecb

SESSION_KEY 
  • Type: String
  • Description: The user’s unique session ID. You can use this value to identify all events in Lightning Experience within a session. When the user logs out and logs in again, a new session starts.
  • Example: cdd09305cb6babf34059e27f70e47f1b11dec868

START_TIME 
  • Type: Number
  • Description: The time in milliseconds when the browser starts to fetch the resource, including redirects.

TIMESTAMP 
  • Type: String
  • Description: The access time of Salesforce services in GMT.
  • Example: 20130715233322.670

TIMESTAMP_DERIVED 
  • Type: DateTime
  • Description: The access time of Salesforce services in ISO8601-compatible format (YYYY-MM-DDTHH:MM:SS.sssZ). The timezone is GMT.
  • Example: 2015-07-27T11:32:59.555Z

TRANSFER_SIZE 
  • Type: Number
  • Description: The size in octets of the resource, including the response header and the response payload body.

UI_EVENT_RELATIVE_TIMESTAMP 
  • Type: Number
  • Description: The difference in milliseconds between when the event is logged and when the browser tab is opened.
  • Example: 29322.23

UI_EVENT_TIMESTAMP 
  • Type: Number
  • Description: The time at which this event occurs, measured in milliseconds.
  • Example: 1479769912796

UI_ROOT_ACTIVITY_ID 
  • Type: String
  • Description: The ID of the root activity when the event occurs.

UI_THREAD_RESPONSE_DELAY 
  • Type: Number
  • Description: The time in milliseconds from when the browser receives the response to when it executes the callback. This delay occurs if the main Javascript thread is busy when the response is received.

URL 
  • Type: String
  • Description: The URL of the request.

USER_ID 
  • Type: String
  • Description: The 15-character ID of the user accessing Salesforce services through the UI or API.
  • Example: 00530000009M943

USER_ID_DERIVED 
  • Type: Id
  • Description: The 18-character case-insensitive ID of the user who’s using Salesforce services through the UI or the API.
  • Example: 00590000000I1SNIA0

USER_TYPE 

  • Type: String

  • Description: The category of user license of the user accessing Salesforce services through the UI or API.

  • Possible values:

    • A - Automated Process
    • b - High Volume Portal
    • C - Customer Portal User
    • D - External Who
    • F - Self-Service
    • G - Guest
    • L - Package License Manager
    • N - Salesforce to Salesforce
    • n - CSN Only
    • O - Power Custom
    • o - Custom
    • P - Partner
    • p - Customer Portal Manager
    • S - Standard
    • X - Salesforce Administrator

WORKER_START 

  • Type: Number

  • Description: The time in milliseconds when the active service worker receives the fetch event, if a service worker is installed.

    To measure the service worker processing time, subtract the WORKER_START time from the FETCH_START time.

Standard Objects
Custom Objects
Object Interfaces
Associated Objects
EventLogfile Supported Event Types
EventLogFile Supported Event Types
Apex Callout Event Type
Apex Execution Event Type
Apex Inline Event Type
Apex REST API Event Type
Apex SOAP Event Type
Apex Trigger Event Type
Apex Unexpected Exception Event Type
API Total Usage
Asynchronous Report Run Event Type
Aura Request Event Type
Blocked Redirect Event Type
Bulk API Event Type
Bulk API 2.0 Event Type
Bulk API Request Event Type
Change Set Operation Event Type
Composite API Event Type
Composite API Subrequest Event Type
Concurrent Long-Running Apex Limit Event Type
Console Event Type
Content Distribution Event Type
Content Document Link Event Type
Content Transfer Event Type
Continuation Callout Summary Event Type
CORS Violation Record Event Type
CSP Violation Event Type
Dashboard Event Type
Database Save Event Type
Document Attachment Downloads Event Type
External Cross-Org Callout Event Type
External Custom Apex Callout Event Type
External Data Source Callout Event Type
External OData Callout Event Type
Flow Execution Event Type
GraphQL Query Event Type
Group Membership Event Type
Hostname Redirects Event Type
Insecure External Assets Event Type
Insufficient Access Event Type
Invocable Action Event Type
Knowledge Article View Event Type
Lightning Error Event Type
Lightning Interaction Event Type
Lightning Logger Event Type
Lightning Page View Event Type
Lightning Performance Event Type
Login Event Type
Login As Event Type
Logout Event Type
Metadata API Operation Event Type
Multiblock Report Event Type
Named Credential Event Type
One Commerce Usage Event Type
Package Install Event Type
Permission Update Event Type
Platform Encryption Event Type
Pricing Event Type
Queued Execution Event Type
Report Event Type
Report Export Event Type
REST API Event Type
Sandbox Event Type
Search Event Type
Search Click Event Type
Sites Event Type
SOAP API Event Type
Time-Based Workflow Event Type
Transaction Security Event Type
UI Telemetry Navigation Timing Event Type
UI Telemetry Resource Timing Event
Unique Query Event Type
URI Event Type
Visualforce Request Event Type
Wave Change Event Type
Wave Download Event Type
Wave Interaction Event Type
Wave Performance Event Type

DID THIS ARTICLE SOLVE YOUR ISSUE?
Let us know so we can improve!