{ "fetchTime": "2024-08-18T22:29:34.424Z", "requestedUrl": "https://chrisnager.com/", "finalUrl": "https://chrisnager.com/", "lighthouseVersion": "12.0.0", "environment": { "networkUserAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36", "hostUserAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.6533.99 Safari/537.36", "benchmarkIndex": 278, "credits": { "axe-core": "4.9.0" } }, "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/127.0.6533.99 Safari/537.36", "runWarnings": [], "audits": { "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 about access keys](https://dequeuniversity.com/rules/axe/4.9/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 how to match ARIA attributes to their roles](https://dequeuniversity.com/rules/axe/4.9/aria-allowed-attr).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "aria-allowed-role": { "id": "aria-allowed-role", "title": "Values assigned to `role=\"\"` are valid ARIA roles.", "description": "ARIA `role`s enable assistive technologies to know the role of each element on the web page. If the `role` values are misspelled, not existing ARIA `role` values, or abstract roles, then the purpose of the element will not be communicated to users of assistive technologies. [Learn more about ARIA roles](https://dequeuniversity.com/rules/axe/4.9/aria-allowed-role).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "aria-command-name": { "id": "aria-command-name", "title": "`button`, `link`, and `menuitem` elements have accessible names", "description": "When an element 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 how to make command elements more accessible](https://dequeuniversity.com/rules/axe/4.9/aria-command-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-conditional-attr": { "id": "aria-conditional-attr", "title": "ARIA attributes are used as specified for the element's role", "description": "Some ARIA attributes are only allowed on an element under certain conditions. [Learn more about conditional ARIA attributes](https://dequeuniversity.com/rules/axe/4.9/aria-conditional-attr).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "aria-deprecated-role": { "id": "aria-deprecated-role", "title": "Deprecated ARIA roles were not used", "description": "Deprecated ARIA roles may not be processed correctly by assistive technology. [Learn more about deprecated ARIA roles](https://dequeuniversity.com/rules/axe/4.9/aria-deprecated-role).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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/4.9/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 ``. [Learn how `aria-hidden` affects the document body](https://dequeuniversity.com/rules/axe/4.9/aria-hidden-body).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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 how `aria-hidden` affects focusable elements](https://dequeuniversity.com/rules/axe/4.9/aria-hidden-focus).", "score": null, "scoreDisplayMode": "notApplicable" }, "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 about input field labels](https://dequeuniversity.com/rules/axe/4.9/aria-input-field-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-meter-name": { "id": "aria-meter-name", "title": "ARIA `meter` elements have accessible names", "description": "When a meter element 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 how to name `meter` elements](https://dequeuniversity.com/rules/axe/4.9/aria-meter-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-progressbar-name": { "id": "aria-progressbar-name", "title": "ARIA `progressbar` elements have accessible names", "description": "When a `progressbar` element 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 how to label `progressbar` elements](https://dequeuniversity.com/rules/axe/4.9/aria-progressbar-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-prohibited-attr": { "id": "aria-prohibited-attr", "title": "Elements use only permitted ARIA attributes", "description": "Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. [Learn more about prohibited ARIA roles](https://dequeuniversity.com/rules/axe/4.9/aria-prohibited-attr).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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 about roles and required attributes](https://dequeuniversity.com/rules/axe/4.9/aria-required-attr).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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 about roles and required children elements](https://dequeuniversity.com/rules/axe/4.9/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 about ARIA roles and required parent element](https://dequeuniversity.com/rules/axe/4.9/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 about valid ARIA roles](https://dequeuniversity.com/rules/axe/4.9/aria-roles).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "aria-text": { "id": "aria-text", "title": "Elements with the `role=text` attribute do not have focusable descendents.", "description": "Adding `role=text` around a text node split by markup enables VoiceOver to treat it as one phrase, but the element's focusable descendents will not be announced. [Learn more about the `role=text` attribute](https://dequeuniversity.com/rules/axe/4.9/aria-text).", "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 about toggle fields](https://dequeuniversity.com/rules/axe/4.9/aria-toggle-field-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-tooltip-name": { "id": "aria-tooltip-name", "title": "ARIA `tooltip` elements have accessible names", "description": "When a tooltip element 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 how to name `tooltip` elements](https://dequeuniversity.com/rules/axe/4.9/aria-tooltip-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "aria-treeitem-name": { "id": "aria-treeitem-name", "title": "ARIA `treeitem` elements have accessible names", "description": "When a `treeitem` element 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 about labeling `treeitem` elements](https://dequeuniversity.com/rules/axe/4.9/aria-treeitem-name).", "score": null, "scoreDisplayMode": "notApplicable" }, "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 about valid ARIA attributes](https://dequeuniversity.com/rules/axe/4.9/aria-valid-attr).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "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 about valid values for ARIA attributes](https://dequeuniversity.com/rules/axe/4.9/aria-valid-attr-value).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "bootup-time": { "id": "bootup-time", "title": "JavaScript execution time", "description": "Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. [Learn how to reduce Javascript execution time](https://developer.chrome.com/docs/lighthouse/performance/bootup-time/).", "score": 1, "scoreDisplayMode": "informative", "displayValue": "0.2 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": 0.682, "scripting": 2.3269999999999995, "total": 147.28400000000008, "url": "https://chrisnager.com/" }, { "scriptParseCompile": 2.434, "scripting": 131.89999999999984, "total": 136.17299999999983, "url": "https://chrisnager.com/framework-497841041f14fa3af211.js" }, { "scriptParseCompile": 0, "scripting": 14.769000000000002, "total": 61.69500000000002, "url": "Unattributable" }, { "scriptParseCompile": 5.055, "scripting": 48.712000000000074, "total": 54.02500000000008, "url": "https://www.googletagmanager.com/gtag/js?id=G-CMCC8SJGYL&cx=c&_slc=1" } ], "sortedBy": [ "total" ], "summary": { "wastedMs": 205.8789999999999 }, "type": "table" }, "numericValue": 205.8789999999999, "numericUnit": "millisecond", "metricSavings": { "TBT": 50 }, "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/4.9/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/4.9/bypass).", "score": null, "scoreDisplayMode": "notApplicable" }, "canonical": { "id": "canonical", "title": "Document has 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": 1, "scoreDisplayMode": "binary" }, "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. [Learn how to provide sufficient color contrast](https://dequeuniversity.com/rules/axe/4.9/color-contrast).", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "crawlable-anchors": { "id": "crawlable-anchors", "title": "Links are crawlable", "description": "Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. [Learn how to make links crawlable](https://support.google.com/webmasters/answer/9112205)", "score": 1, "scoreDisplayMode": "binary", "details": { "headings": [], "items": [], "type": "table" } }, "critical-request-chains": { "id": "critical-request-chains", "title": "Avoid chaining critical requests", "description": "The Critical Request Chains below show you what resources are loaded with a high priority. 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": null, "scoreDisplayMode": "notApplicable", "details": { "chains": { "E278A0B6ED1D4AC00E870F68CE9FE9DE": { "request": { "endTime": 3091555.625624, "responseReceivedTime": 3091555.6256150003, "startTime": 3091555.470271, "transferSize": 6027, "url": "https://chrisnager.com/" } } }, "longestChain": { "duration": 155.35299968719482, "length": 1, "transferSize": 6027 }, "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, `