",
"boundingRect": {
"top": 367,
"bottom": 3655,
"left": 15,
"right": 345,
"width": 330,
"height": 3288
}
}
}
]
}
},
"layout-shift-elements": {
"id": "layout-shift-elements",
"title": "Avoid large layout shifts",
"description": "These DOM elements contribute most to the CLS of the page.",
"score": null,
"scoreDisplayMode": "notApplicable",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"long-tasks": {
"id": "long-tasks",
"title": "Avoid long main-thread tasks",
"description": "Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. [Learn more](https://web.dev/long-tasks-devtools/)",
"score": null,
"scoreDisplayMode": "notApplicable",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"non-composited-animations": {
"id": "non-composited-animations",
"title": "Avoid non-composited animations",
"description": "Animations which are not composited can be janky and increase CLS. [Learn more](https://web.dev/non-composited-animations)",
"score": null,
"scoreDisplayMode": "notApplicable",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"large-javascript-libraries": {
"id": "large-javascript-libraries",
"title": "Avoids large JavaScript libraries with smaller alternatives",
"description": "Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size. [Learn more](https://developers.google.com/web/fundamentals/performance/webpack/decrease-frontend-size#optimize_dependencies).",
"score": 1,
"scoreDisplayMode": "binary",
"displayValue": "0 large libraries found",
"details": {
"type": "table",
"headings": [],
"items": [],
"summary": {}
}
},
"accesskeys": {
"id": "accesskeys",
"title": "`[accesskey]` values are unique",
"description": "Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. [Learn more](https://web.dev/accesskeys/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-allowed-attr": {
"id": "aria-allowed-attr",
"title": "`[aria-*]` attributes match their roles",
"description": "Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. [Learn more](https://web.dev/aria-allowed-attr/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"aria-hidden-body": {
"id": "aria-hidden-body",
"title": "`[aria-hidden=\"true\"]` is not present on the document ``",
"description": "Assistive technologies, like screen readers, work inconsistently when `aria-hidden=\"true\"` is set on the document ``. [Learn more](https://web.dev/aria-hidden-body/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"aria-hidden-focus": {
"id": "aria-hidden-focus",
"title": "`[aria-hidden=\"true\"]` elements do not contain focusable descendents",
"description": "Focusable descendents within an `[aria-hidden=\"true\"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. [Learn more](https://web.dev/aria-hidden-focus/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"aria-input-field-name": {
"id": "aria-input-field-name",
"title": "ARIA input fields have accessible names",
"description": "When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. [Learn more](https://web.dev/aria-input-field-name/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-required-attr": {
"id": "aria-required-attr",
"title": "`[role]`s have all required `[aria-*]` attributes",
"description": "Some ARIA roles have required attributes that describe the state of the element to screen readers. [Learn more](https://web.dev/aria-required-attr/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-required-children": {
"id": "aria-required-children",
"title": "Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.",
"description": "Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. [Learn more](https://web.dev/aria-required-children/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-required-parent": {
"id": "aria-required-parent",
"title": "`[role]`s are contained by their required parent element",
"description": "Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. [Learn more](https://web.dev/aria-required-parent/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-roles": {
"id": "aria-roles",
"title": "`[role]` values are valid",
"description": "ARIA roles must have valid values in order to perform their intended accessibility functions. [Learn more](https://web.dev/aria-roles/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-toggle-field-name": {
"id": "aria-toggle-field-name",
"title": "ARIA toggle fields have accessible names",
"description": "When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. [Learn more](https://web.dev/aria-toggle-field-name/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"aria-valid-attr-value": {
"id": "aria-valid-attr-value",
"title": "`[aria-*]` attributes have valid values",
"description": "Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. [Learn more](https://web.dev/aria-valid-attr-value/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"aria-valid-attr": {
"id": "aria-valid-attr",
"title": "`[aria-*]` attributes are valid and not misspelled",
"description": "Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. [Learn more](https://web.dev/aria-valid-attr/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"button-name": {
"id": "button-name",
"title": "Buttons have an accessible name",
"description": "When a button doesn't have an accessible name, screen readers announce it as \"button\", making it unusable for users who rely on screen readers. [Learn more](https://web.dev/button-name/).",
"score": null,
"scoreDisplayMode": "notApplicable"
},
"bypass": {
"id": "bypass",
"title": "The page contains a heading, skip link, or landmark region",
"description": "Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. [Learn more](https://web.dev/bypass/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"color-contrast": {
"id": "color-contrast",
"title": "Background and foreground colors have a sufficient contrast ratio",
"description": "Low-contrast text is difficult or impossible for many users to read. [Learn more](https://web.dev/color-contrast/).",
"score": 1,
"scoreDisplayMode": "binary",
"details": {
"type": "table",
"headings": [],
"items": []
}
},
"definition-list": {
"id": "definition-list",
"title": "`
`'s contain only properly-ordered `- ` and `
- ` groups, `