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Other custom metric

Appears in: custom_metrics struct
As: other

Advertising technology and usage. See the ads custom metric for more information.

Metrics defined in the early versions of Web Almanac crawls.

Project Aurora.

The average DOM depth of a page.

Color depth of a screen.

The links found during a crawl.

CSS usage.

Document type declaration.

Height of the document.

Width of the document.

Dots per inch (DPI) of a screen.

Event names used in JavaScript.

Usage of Fugu APIs.

Client-side generated content.

Presence of shadow DOM roots.

Images usage.

Image loading attributes.

Resource initiators.

Type: integer

Size of inline styles.

Libraries detector version.

Size of local storage.

Meta viewport tag.

Type: integer

Number of iframes on a page.

Type: integer

Number of script tags.

Type: integer

Number of asynchronous scripts.

Type: integer

Number of synchronous scripts.

Metrics related to the usage of observer APIs.

Privacy Sandbox initiative usage.

Progressive Web Apps.

Usage of quirks mode in browsers.

Resolution of a screen.

Robots meta tag.

Usage of Sass.

Size of session storage.

User Timing API.

Validity of the head element.