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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

26

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:59.624 source:map[column:59900 line:2 type:source-location url:https://cmp.osano.com/16CTtkTpkevwz37Ll/2d76ede4-75b8-4f8a-9115-6a8e911ef782/osano.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:19.208 source:map[type:text value:[unattributed]]] map[reflowTime:7.367 source:map[column:21642 line:0 type:source-location url:https://www.nationalgeographic.org/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=3.35.7 urlProvider:network]] map[reflowTime:5.293 source:map[column:49615 line:1 type:source-location url:https://www.nationalgeographic.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 urlProvider:network]] map[reflowTime:0.587 source:map[column:51395 line:1 type:source-location url:https://www.nationalgeographic.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 urlProvider:network]] map[reflowTime:0.255 source:map[column:56520 line:1 type:source-location url:https://cdn.jsdelivr.net/npm/@algolia/autocomplete-js@1.5.4/dist/umd/index.production.js?ver=0.1.0 urlProvider:network]] map[reflowTime:3.718 source:map[column:84992 line:1 type:source-location url:https://www.nationalgeographic.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 urlProvider:network]] map[reflowTime:7.298 source:map[column:2757 line:0 type:source-location url:https://www.nationalgeographic.org/wp-content/plugins/elementor-pro/assets/lib/sticky/jquery.sticky.min.js?ver=3.4.1 urlProvider:network]] map[reflowTime:8.442 source:map[column:83946 line:1 type:source-location url:https://www.nationalgeographic.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 urlProvider:network]] map[reflowTime:59.624 source:map[column:59913 line:1 type:source-location url:https://cmp.osano.com/16CTtkTpkevwz37Ll/2d76ede4-75b8-4f8a-9115-6a8e911ef782/osano.js urlProvider:network]] map[reflowTime:1.996 source:map[column:92206 line:1 type:source-location url:https://cmp.osano.com/16CTtkTpkevwz37Ll/2d76ede4-75b8-4f8a-9115-6a8e911ef782/osano.js urlProvider:network]] map[reflowTime:0.174 source:map[column:92565 line:1 type:source-location url:https://cmp.osano.com/16CTtkTpkevwz37Ll/2d76ede4-75b8-4f8a-9115-6a8e911ef782/osano.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
CELEBRATE EARTH MONTH Where Curiosity Meets Passion Meet the National Geograph… div#primary > main#main > div.elementor > section.elementor-section
/wp-content/uploads/2026/03/NS110957996_NGS2023EXPL_SRams...18.7 MiB11.5 MiB
OPENING JUNE 26, 2026 National Geographic Museum of Exploration Spark a lifeti… div#primary > main#main > div.elementor > section.elementor-section
/wp-content/uploads/2024/10/Courtyard_Daytime_1-1-scaled.jpg771.9 KiB171.9 KiB
Image of caribou traversing the snowy heart of Alaska div.elementor-featured-box-meta-inner > div.elementor-featured-box-meta-item > div.elementor-item-box-image > img.attachment-full
/wp-content/uploads/2026/03/Caribou_NS2873957_Caribou_or_...106.6 KiB63.1 KiB
div.elementor-featured-box-meta-inner > div.elementor-featured-box-meta-item > div.elementor-item-box-image > img.attachment-full div.elementor-featured-box-meta-inner > div.elementor-featured-box-meta-item > div.elementor-item-box-image > img.attachment-full
/wp-content/uploads/2026/03/NS2174911_NGSPS2023RMI_RMI-UW...96.6 KiB45.6 KiB
div.sfm-widget > div.ngs-menu-footer-links > a.extra-menu-link > img.alignnone div.sfm-widget > div.ngs-menu-footer-links > a.extra-menu-link > img.alignnone
images.nationalgeographic.org/image/upload/v1761138394/fusion/museum-icon.png8.0 KiB8.0 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:587.471 label:Time to first byte subpart:timeToFirstByte] map[duration:574.276 label:Resource load delay subpart:resourceLoadDelay] map[duration:2549.339 label:Resource load duration subpart:resourceLoadDuration] map[duration:1017.67 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-SECTION
nodeLabel: CELEBRATE EARTH MONTH Where Curiosity Meets Passion Meet the National Geograph…
path: 1,HTML,1,BODY,5,DIV,0,DIV,2,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,0,SECTION
selector: div#primary > main#main > div.elementor > section.elementor-section
snippet: <section class="elementor-section elementor-top-section elementor-element elementor-elemen…" data-id="d77f747" data-element_type="section" data-e-type="section" data-settings="{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;video&quot;,&quot;ba…" style="width: 412px; left: -15px;">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-SECTION
nodeLabel: CELEBRATE EARTH MONTH Where Curiosity Meets Passion Meet the National Geograph…
path: 1,HTML,1,BODY,5,DIV,0,DIV,2,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,0,SECTION
selector: div#primary > main#main > div.elementor > section.elementor-section
snippet: <section class="elementor-section elementor-top-section elementor-element elementor-elemen…" data-id="d77f747" data-element_type="section" data-e-type="section" data-settings="{&quot;stretch_section&quot;:&quot;section-stretched&quot;,&quot;background_background&quot;:&quot;video&quot;,&quot;ba…" style="width: 412px; left: -15px;">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
/wp-content/plugins/premium-addons-for-elementor/assets/f...54.8 KiB604 ms
/wp-content/plugins/elementor/assets/css/widget-heading.m...645 B
/wp-content/plugins/elementor/assets/css/widget-icon-box....928 B
/wp-content/plugins/elementor/assets/lib/animations/style...655 B
www.nationalgeographic.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.131.3 KiB151 ms
/wp-content/plugins/elementor/assets/css/widget-spacer.mi...824 B
/wp-content/plugins/elementor/assets/lib/font-awesome/css...812 B
/wp-content/plugins/elementor/assets/css/widget-divider.m...1.2 KiB
/wp-content/uploads/la_icon_sets/style.min.css?ver=6.9.4427 B
/wp-content/plugins/elementor/assets/css/widget-counter.m...744 B
/wp-content/plugins/superfly-menu/includes/vendor/looks_a...790 B
/wp-content/plugins/superfly-menu/js/public.min.js?ver=5....22.7 KiB151 ms
/wp-content/plugins/ngs-search-with-algolia/css/algolia-t...6.3 KiB
/wp-content/themes/fundor/assets/css/opal-icons.css?ver=6...8.5 KiB
/wp-content/plugins/elementor/assets/lib/eicons/css/eleme...4.7 KiB
www.nationalgeographic.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.15.4 KiB
/wp-content/plugins/superfly-menu/includes/vendor/looks_a...2.6 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...12.9 KiB
/wp-content/plugins/ngs-settings/assets/js/ngs-settings.j...1.5 KiB
/wp-content/themes/fundor/assets/js/libs/owl.carousel.js?...20.7 KiB151 ms
/wp-content/plugins/elementor/assets/lib/font-awesome/js/...4.6 KiB
/wp-content/plugins/fundor-core/assets/js/libs/modernizr....4.4 KiB
/wp-content/plugins/ngs-search-with-algolia/css/algolia-a...1.6 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...4.6 KiB151 ms
/wp-content/uploads/elementor/css/post-1197.css?ver=17750...3.9 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...13.2 KiB
/wp-content/plugins/fundor-core/assets/css/magnific-popup...2.3 KiB
/wp-content/themes/fundor/assets/css/carousel.css?ver=6.9.42.2 KiB151 ms
www.nationalgeographic.org/wp-content/themes/fundor-ngs/style.css?ver=6.9.46.2 KiB
/wp-content/plugins/elementor-pro/assets/css/frontend.min...29.0 KiB453 ms
/wp-content/uploads/elementor/css/post-7.css?ver=17738290951.7 KiB
/wp-content/uploads/elementor/css/post-8740.css?ver=17738...1.9 KiB151 ms
/wp-content/plugins/fundor-core/assets/js/carousel.js?ver...2.1 KiB
/wp-content/plugins/superfly-menu/css/public.min.css?ver=...8.6 KiB151 ms
/wp-content/uploads/elementor/css/post-8753.css?ver=17738...3.2 KiB
www.nationalgeographic.org/wp-content/themes/fundor/style.css?ver=6.9.425.8 KiB302 ms
/wp-content/plugins/elementor/assets/css/frontend.min.css...7.8 KiB
/wp-content/plugins/fundor-core/assets/css/elementor/styl...22.9 KiB302 ms
/wp-content/themes/fundor/assets/css/opal-boostrap.css?ve...17.4 KiB
/css?family=Barlow%3A400%7CBebas+Neue%3A400%7CBarlow%3A50...1.0 KiB825 ms

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Other7.3 s
Script Evaluation2.9 s
Style & Layout1.6 s
Script Parsing & Compilation609 ms
Parse HTML & CSS415 ms
Rendering261 ms
Garbage Collection37 ms

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.2 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 7 animated elements found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 20 ms
●Server Backend Latencies 340 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 220 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○User Timing marks and measures
82

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
OCEAN LAND WILDLIFE HUMAN HISTORIES & CULTURES PLANETARY HEALTH SPACE   Revea… div.elementor-widget-wrap > div.elementor-element > div.elementor-widget-container > div.elementor-tabs

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.home > div.sfm-rollback > div.sfm-navicon-button body.home > div.sfm-rollback > div.sfm-navicon-button

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
LEARN MORE div#elementor-tab-content-2471 > p > a > u

These are opportunities to improve the legibility of your content.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
OCEAN div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2471
LAND div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2472
WILDLIFE div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2473
HUMAN HISTORIES & CULTURES div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2474
PLANETARY HEALTH div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2475
SPACE div.elementor-widget-container > div.elementor-tabs > div.elementor-tabs-wrapper > div#elementor-tab-title-2476

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Using the power of science, exploration, education, and storytelling to illumin… div.elementor-widget-wrap > div.elementor-element > div.elementor-widget-container > h4.elementor-heading-title
Bold Explorers div.elementor-widget-container > div.elementor-icon-box-wrapper > div.elementor-icon-box-content > h5.elementor-icon-box-title
  div.elementor-tabs > div.elementor-tabs-content-wrapper > div#elementor-tab-content-2471 > h5
CONNECT WITH US div.elementor-widget-wrap > div.elementor-element > div.elementor-widget-container > h6.elementor-heading-title

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.elementor-element > div.elementor-widget-container > div.elementor-icon-wrapper > a.elementor-icon div.elementor-element > div.elementor-widget-container > div.elementor-icon-wrapper > a.elementor-icon
div.elementor-widget-wrap > div.elementor-element > div.elementor-widget-container > a div.elementor-widget-wrap > div.elementor-element > div.elementor-widget-container > a
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link
div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link div#opal-img-layers-wrapper > ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
●All heading elements contain content.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
96

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2021/10/Jessica-Cramp-NationalGeograp...134 x 140 (0.96)400 x 400 (1.00)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2019/08/credit-Paul-Nicklen_cc3F_2688...134 x 140 (0.96)400 x 400 (1.00)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2021/10/credit-Ami-Vitale_ccO3C_26550...134 x 140 (0.96)400 x 400 (1.00)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2021/10/credit-Christian-Tryon_ccMS_2...134 x 140 (0.96)400 x 400 (1.00)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2024/05/NS243017_CP-FYP22_21072022_07...134 x 140 (0.96)400 x 400 (1.00)
ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image ul.opal-img-layers-list-wrapper > li.opal-img-layers-list-item > a.opal-img-layers-link > img.opal-img-layers-image
/wp-content/uploads/2024/05/cr-NASA-NationalGeographic_10...134 x 140 (0.96)400 x 400 (1.00)
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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