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[Learn how to make command elements more accessible](https://dequeuniversity.com/rules/axe/4.8/aria-command-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-dialog-name": { "id": "aria-dialog-name", "title": "Elements with `role=\"dialog\"` or `role=\"alertdialog\"` have accessible names.", "description": "ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. [Learn how to make ARIA dialog elements more accessible](https://dequeuniversity.com/rules/axe/4.8/aria-dialog-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "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 ``. 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[Learn how to reduce Javascript execution time](https://developer.chrome.com/docs/lighthouse/performance/bootup-time/).", "score": 1, "scoreDisplayMode": "informative", "displayValue": "0.0 s", "details": { "headings": [ { "key": "url", "label": "URL", "valueType": "url" }, { "granularity": 1, "key": "total", "label": "Total CPU Time", "valueType": "ms" }, { "granularity": 1, "key": "scripting", "label": "Script Evaluation", "valueType": "ms" }, { "granularity": 1, "key": "scriptParseCompile", "label": "Script Parse", "valueType": "ms" } ], "items": [ { "scriptParseCompile": 1.012, "scripting": 8.643999999999998, "total": 299.21200000000005, "url": "https://bau.com/text/120301_ytong-2.php" }, { "scriptParseCompile": 0, "scripting": 5.712, "total": 95.448, "url": "Unattributable" } ], "sortedBy": [ "total" ], "summary": { "wastedMs": 15.367999999999999 }, "type": "table" }, "numericValue": 15.367999999999999, "numericUnit": "millisecond", "metricSavings": { "TBT": 0 }, "guidanceLevel": 1 }, "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 how to make buttons more accessible](https://dequeuniversity.com/rules/axe/4.8/button-name).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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 about bypass blocks](https://dequeuniversity.com/rules/axe/4.8/bypass).", "score": null, "scoreDisplayMode": "notApplicable" }, "canonical": { "id": "canonical", "title": "Document does not have a valid `rel=canonical`", "description": "Canonical links suggest which URL to show in search results. [Learn more about canonical links](https://developer.chrome.com/docs/lighthouse/seo/canonical/).", "score": 0, "scoreDisplayMode": "binary", "explanation": "Is not an absolute URL (/text/120301_ytong-2.php)" }, "charset": { "id": "charset", "title": "Properly defines charset", "description": "A character encoding declaration is required. It can be done with a `` tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. [Learn more about declaring the character encoding](https://developer.chrome.com/docs/lighthouse/best-practices/charset/).", "score": 1, "scoreDisplayMode": "binary" }, "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. 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Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. [Learn how to avoid chaining critical requests](https://developer.chrome.com/docs/lighthouse/performance/critical-request-chains/).", "score": 1, "scoreDisplayMode": "informative", "displayValue": "1 chain found", "details": { "chains": { "C7206096F9B32AF231D8770DFD9B858E": { "children": { "42.2": { "request": { "endTime": 656347.705617, "responseReceivedTime": 656347.705613, "startTime": 656347.60567, "transferSize": 8947, "url": "https://bau.com/css/std.css" } } }, "request": { "endTime": 656347.591823, "responseReceivedTime": 656347.591818, "startTime": 656347.253744, "transferSize": 18836, "url": "https://bau.com/text/120301_ytong-2.php" } } }, "longestChain": { "duration": 451.8730000257492, "length": 2, "transferSize": 8947 }, "type": "criticalrequestchain" }, "guidanceLevel": 1 }, "csp-xss": { "id": "csp-xss", "title": "Ensure CSP is effective against XSS attacks", "description": "A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. [Learn how to use a CSP to prevent XSS](https://developer.chrome.com/docs/lighthouse/best-practices/csp-xss/)", "score": 1, "scoreDisplayMode": "informative", "details": { "headings": [ { "key": "description", "label": "Description", "subItemsHeading": { "key": "description" }, "valueType": "text" }, { "key": "directive", "label": "Directive", "subItemsHeading": { "key": "directive" }, "valueType": "code" }, { "key": "severity", "label": "Severity", "subItemsHeading": { "key": "severity" }, "valueType": "text" } ], "items": [ { "description": "No CSP found in enforcement mode", "severity": "High" } ], "type": "table" } }, "cumulative-layout-shift": { "id": "cumulative-layout-shift", "title": "Cumulative Layout Shift", "description": "Cumulative Layout Shift measures the movement of visible elements within the viewport. [Learn more about the Cumulative Layout Shift metric](https://web.dev/articles/cls).", "score": 1, "scoreDisplayMode": "numeric", "displayValue": "0", "details": { "items": [ { "cumulativeLayoutShiftMainFrame": 0, "newEngineResult": { "cumulativeLayoutShift": 0, "cumulativeLayoutShiftMainFrame": 0 }, "newEngineResultDiffered": false } ], "type": "debugdata" }, "numericValue": 0, "numericUnit": "unitless", "scoringOptions": { "p10": 0.1, "median": 0.25 } }, "custom-controls-labels": { "id": "custom-controls-labels", "title": "Custom controls have associated labels", "description": "Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. [Learn more about custom controls and labels](https://developer.chrome.com/docs/lighthouse/accessibility/custom-controls-labels/).", "score": null, "scoreDisplayMode": "manual" }, "custom-controls-roles": { "id": "custom-controls-roles", "title": "Custom controls have ARIA roles", "description": "Custom interactive controls have appropriate ARIA roles. [Learn how to add roles to custom controls](https://developer.chrome.com/docs/lighthouse/accessibility/custom-control-roles/).", "score": null, "scoreDisplayMode": "manual" }, "definition-list": { "id": "definition-list", "title": "`

` and `: ` groups, `