Skip to content
https://rcf-community.com

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

71

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.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
Welcome To -RCF- Community Fleets “Nos Unum Inter Astra” body > div.cn
rcf-community.com/images/222.jpg703.2 KiB347.0 KiB
rcf-community.com/images/renegade1.jpg678.3 KiB303.3 KiB
RCF Seal div.divNews > div.logo > div > img
rcf-community.com/images/RCF-anim-test1.gif226.3 KiB210.8 KiB
/widget-avatars/iU7bF64LE3KZKK4jXGNH-onp4pnVemyT8bi7Oe7M1...44.2 KiB44.1 KiB
/widget-avatars/LxBLCEjccXONlUj2VXguxCE6c7_Nvm5BJ3AZUUvdd...42.4 KiB42.4 KiB
/widget-avatars/daCme0lNhxNTF7KMjfHPvqHIZ4b2oIRu8ZdTbuKDp...42.3 KiB42.3 KiB
ARMADA TIME body > div.divFleetTime
/widget-avatars/uME2mbcMwPdntN4so31IaLnoHEvL4fQZnycxAHTH8...41.1 KiB41.1 KiB
/widget-avatars/XH19sKh6d971NMim1ggvaT1cYBWYoFLslR6DuSHHV...40.9 KiB40.9 KiB
/widget-avatars/yoKmXZ6WoUi1Hnrinsq6faPg5Thse9rb8_4u9GqSu...40.7 KiB40.6 KiB
/widget-avatars/7pryRtEZkxRoGpCCA2Q6DB6745p_m7KZuSPLeRgDa...40.5 KiB40.4 KiB
/widget-avatars/MSscxbvCFWpFbixZ0vCAX-Gsyjqd3ya6a250mdDgK...40.2 KiB40.1 KiB
/widget-avatars/1MHGItGJVLyC_LMY94SeSQFCd2vYmqiuogmeBJKg9...40.1 KiB40.0 KiB
/widget-avatars/KgpsWLz1tEfJDjbLOx2f5g_DTyUjjpKDDPdSHziHr...39.8 KiB39.8 KiB
/widget-avatars/fwrgfZym2vdFdOYhl-hEaqabNSvaa6GmjzOPUUjnk...39.2 KiB39.1 KiB
/widget-avatars/ZEQEyae5bNZuI_YgVmPNIq-vlcYfYYJ2Hl1LE9Rxk...39.0 KiB39.0 KiB
/widget-avatars/fWa3xAa7DF_MHIBpTB18kR2674qY6eo5b1i8Hwpjs...38.4 KiB38.4 KiB
/widget-avatars/aR--55bem-kE1_vshRR2oNyaZ0WY3shjogoHmWGgZ...37.9 KiB37.8 KiB
/widget-avatars/Yx_E0QJ0H8ZVpUbCoVpbiBQsDqlpMUz_lgcieKFUy...36.7 KiB36.7 KiB
/widget-avatars/HIBkpkDeOgwTa3iNnEXyeHPx2amDpMhlLnbBPrclg...36.7 KiB36.7 KiB
/widget-avatars/0VAhS-vwn54R_Y1RBo5KKa9Acxp_EBFJSKdsTRjPN...36.7 KiB36.6 KiB
/widget-avatars/ZwbSkadImgGNZ5iptZxUYB1d51kU-v1JkjXfnu2vI...36.3 KiB36.3 KiB
/widget-avatars/3bfz7trfI1kGZAuqRW1fF3Ggm8VDynKuSM4yIHw--...35.2 KiB35.2 KiB
/widget-avatars/YySO-ao7_nEURLm6nAczxPovf8VJedxWZuDSIWzVp...35.1 KiB35.0 KiB
/widget-avatars/hJAMVJh1RCEzvWIC6AfrJOyuPXWY8d2az_GYch7DS...34.8 KiB34.8 KiB
/widget-avatars/ymMw3mkoth9LtjInKLvJzkra73-j6P0hv16OCtYB0...34.6 KiB34.5 KiB
/widget-avatars/AOCuUmAFIt7lzLmuRebr5rZlsAI9ORKRSiK7Q9Bg0...34.4 KiB34.4 KiB
/widget-avatars/Ctp0FzGOn_nwuzbNUeih1qtIV1ENa55kGrrSAfLa9...34.1 KiB34.1 KiB
/widget-avatars/rhqBFrgHIR_aIyga8lKz861O0NdJoSZDNRNBvdCw7...33.9 KiB33.8 KiB
/widget-avatars/Ij0-HIAxX3rvgr2PETcfE22zgH9xbOrZk6JQ1Cgy6...33.3 KiB33.3 KiB
/widget-avatars/lNgZ-2asRZT1W0ZcRdy3hseHMd62FUjvqkilKAz46...33.2 KiB33.2 KiB
/widget-avatars/nese-gwdh0bqZlr2Crh2_gyb9FKq-Xp1txM90ddfv...33.2 KiB33.2 KiB
/widget-avatars/XY979IAWCyaApl3w6loPcbcERoHDm73HTHRryuyky...33.1 KiB33.0 KiB
/widget-avatars/TO1OD7HoPdTcf7FHXJDJByoIsB7j3T6DAsCMRM0WI...32.9 KiB32.9 KiB
/widget-avatars/BwjnTvjJSZyiLm4YrslbOIoPtRkgcwc0NJR0a_Ji4...32.1 KiB32.1 KiB
/widget-avatars/BuxSddX4dYyxhTkDbx3mcgcoW7dp8co2nMnS7muCe...32.1 KiB32.1 KiB
/widget-avatars/v48VISpjdC_PUh-ZbmDRaZ6UzAieIOvQoZqvQaLMP...31.9 KiB31.9 KiB
/widget-avatars/aCk9BSIcMPK2o3Fvf64jKkSngk496KWzzeSb2Fxla...31.9 KiB31.8 KiB
/widget-avatars/GXMlvCJ7paJPpBZ8o4xGLQWjbkaAYZwCMP69j26Fy...31.6 KiB31.5 KiB
/widget-avatars/npaicmKL3njpz7xR4eYWyDw3Mlcu_kiuos-9zEIV3...31.5 KiB31.4 KiB
/widget-avatars/2HmU_BgBSqjR9k3OKHAlMBxCaoSFjmKt6NQmrR7Ld...31.4 KiB31.4 KiB
/widget-avatars/Y1K_UCdvt38QwEIAReT6D6CZ5IMd_lnihr-6_Q_d4...31.4 KiB31.3 KiB
/widget-avatars/fHtFyuDnTa4F4YsCHu6QeGQSkD2AMWXpdD837s65G...31.3 KiB31.3 KiB
/widget-avatars/LgjpqW_isSTP_vAJyYalY0a2P602MRJzgTQQyhRPv...31.3 KiB31.3 KiB
/widget-avatars/fqNB8cycTnzPLcMxH4L3vZp7fvK7CgQE-mBDNjHeZ...31.0 KiB31.0 KiB
/widget-avatars/DTJv6fG9377ejQh9TtblW1zY8LInh5cNydWRzuMFf...31.0 KiB30.9 KiB
/widget-avatars/hF93IhGG7IEpSeJTomDW29diqnXzCOdEX1ALtjnKS...30.5 KiB30.5 KiB
/widget-avatars/2_vKwElu40YjxsNxjfT86WDiMX35_KlaEA_dT79Gi...30.1 KiB30.1 KiB
/widget-avatars/7C05-1yUDYcIly0otlUmjhbZBiw9tc24zh5EJ-s_y...30.1 KiB30.0 KiB
/widget-avatars/pv9jGO68Rp_KWZtGdLKInzyc6MUQex2wMJc52NAHl...30.0 KiB29.9 KiB
/widget-avatars/5lm1uFRMg17nUYznfClvoNIQzsxdpXeH6Yotoo6xG...29.8 KiB29.8 KiB
/widget-avatars/4rU1uGWMtvEbGhZk5XPZnCJjjbhhBh69U0Vx4WsaO...29.7 KiB29.6 KiB
/widget-avatars/1qQUKoiI_raqRxMvxh50zxQcDUtxBjArGOZ4qVx4n...29.6 KiB29.5 KiB
/widget-avatars/T4_V8Yt69ZlACLN_lMXCeVvmbSw3o7NC4gfY9AX8c...29.5 KiB29.4 KiB
/widget-avatars/NKlFSp-PobFG7AWxad2xuOUMPd903dAb6I8g6kLtC...29.4 KiB29.3 KiB
/widget-avatars/2pF90GqPD92oFqSflwvHuU6Mve9ITPoNM2H6klq-N...29.1 KiB29.1 KiB
/widget-avatars/GVI7Ngt7hZjxT0ZtnRTuLrWDmU2EAT583K2DqXeLb...28.8 KiB28.8 KiB
/widget-avatars/u0zDLIiWaxWY7EPVz3xFOd8NTeM0-McOXsqha-Nma...28.6 KiB28.5 KiB
/widget-avatars/njCY68OfURP6nsJzusin1oZ5cYF3dtKW8IqKI3pA_...28.3 KiB28.2 KiB
/widget-avatars/kcgOSnt7nTrNKcD_EAMTEzCkKM0Z4cLPO_T6Oipte...28.0 KiB27.9 KiB
/widget-avatars/cfogDtOFjf0P-HDEY2jvrBCz0E98Gq7QkSnHuhp4q...27.9 KiB27.8 KiB
/widget-avatars/1nv7o9JAYYJhxvh7TbbwRzrOmbT4BGyY7K-v4Elpc...27.7 KiB27.7 KiB
/widget-avatars/VWQExR3d04zxNlNMJnVvu0Za6XbKcIh_FzrdAYbwI...27.7 KiB27.7 KiB
/widget-avatars/WiN85fSkI4H5fGeK3i1KZYvOTjkeAjCevwce-Nfim...27.2 KiB27.2 KiB
/widget-avatars/7MBZaNJs29wKxSFfkLTzrzRVCc5cPNQ6kkJZArGQE...27.1 KiB27.1 KiB
/widget-avatars/ZtSDcPOeuXPezaIjfoCyW3gUCb5FSAO4M9Exo8BQR...26.7 KiB26.6 KiB
/widget-avatars/B_fmEkMh2OEPRiW0Z9DuR1vAOPbqtVUTAyikLZ9jx...26.5 KiB26.5 KiB
/widget-avatars/enLj5_VjyUafPKp75wfTUbleCcP5NENnEp01pQqS9...26.0 KiB25.9 KiB
/widget-avatars/cU0jdKjDMemfp6qaDUxnjBBIkvyn56k8aG9tSec5m...25.2 KiB25.2 KiB
/widget-avatars/jjUxB-UPBJMLNBCAjB6G1NPsjols2FQqlP-pB6Xdu...25.0 KiB24.9 KiB
/widget-avatars/DW41vDlMyAdSmpYFW-YeTG3HInpCYYespC6m-5p5p...24.7 KiB24.7 KiB
/widget-avatars/2aXPm3l2K5rfilZZPBzBuWg1ZpdhPNiqw-Ov2ovf3...24.6 KiB24.6 KiB
/widget-avatars/8J0TBCQOVW_l02GvPpWAH5oaqP6RSbUGH5kfgK2aO...24.4 KiB24.4 KiB
/widget-avatars/W8QTi5V5XW_emUbHCmpycYRP7IsSTJoPFZTmqsyMQ...24.3 KiB24.3 KiB
/widget-avatars/HpTzxc2KATWZGHNu7Pijk06Pt0Eld5WtJxrhQ6rNH...24.0 KiB24.0 KiB
/widget-avatars/b0xI7C5Ne4lqjhE1ro_aL9jAuMk6OsNH3UrYA-emy...20.5 KiB20.5 KiB
/widget-avatars/pnmMmnCETr2W_K9K9SzxisBvalDJ72bGnxDRMrgWj...20.4 KiB20.3 KiB
div.logo > p.invite > a > img div.logo > p.invite > a > img
rcf-community.com/images/discord_invite.jpg32.8 KiB20.2 KiB
/widget-avatars/y3mTIfu5jhxhUKy6iP59oXjaxJ3iSADcSCJUntDzO...20.1 KiB20.1 KiB
/widget-avatars/7MHvs_CnztU8SHFrm1AuSwf2-6XewlkeQYIzaJQns...17.6 KiB17.5 KiB
/widget-avatars/h5stz90Zp98_RaOasU_N6N90km5E630UiQk13SLs2...16.5 KiB16.4 KiB
/widget-avatars/yJt68m_VnVp0_IsHLbOYrAtgnft7qROFNqAS_J1Nd...15.5 KiB15.5 KiB
/widget-avatars/w-VJS9lGIFkelDL7ov0lq_ov54yxR8goyPK2FQPwU...15.3 KiB15.3 KiB
/widget-avatars/srWZjwsIaiIyqWJk39tFAwGflrkS2bUsK45PuNqjU...15.1 KiB15.1 KiB
/widget-avatars/QxzX6x_hbil2aGlB0e_EuWXUGgoRfV82U-2-Dq63r...14.7 KiB14.6 KiB
/widget-avatars/81Wremw7JOqPlgSf6WHdjSoJW9ESFt6IExORsoqau...14.5 KiB14.5 KiB
/widget-avatars/LW42nFPc9DP9ZEDIbQoDYFsgBLSP8pc3lLGDGuRtT...12.8 KiB12.8 KiB
/widget-avatars/8rWvZC5wvoo4HsvyRe-Zyjjuo_eOtVrwg8daaJuyb...11.6 KiB11.5 KiB
/widget-avatars/P6mG7fjU3hImhFHGhW4r18lInxdAHOCvWTcSHID02...10.4 KiB10.3 KiB
/widget-avatars/NGkzSjjT56Zo_8qfg9FsSgpi1fo21UzVv6OazmrA4...10.3 KiB10.3 KiB
/widget-avatars/amjVl1b7oW4Ox7zdsapRruJxLN89Be-xo8iM_n8cw...7.1 KiB7.1 KiB
/widget-avatars/VCq82Te0p5xXd3ECJuMoph1ZlFNqj-AWtRH2_hJrH...6.4 KiB6.4 KiB
/widget-avatars/adYOErEcUqYDXI5w7qc9ydM9PJr5h2DtKrCVvqc10...4.7 KiB4.7 KiB
/widget-avatars/Oj1b2MCdN6cw4FskEh_zlGCMaZvhqEo2HSjqLHlii...4.7 KiB4.7 KiB

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-DIV
nodeLabel: Welcome To -RCF- Community Fleets “Nos Unum Inter Astra”
path: 1,HTML,1,BODY,0,DIV
selector: body > div.cn
snippet: <div class="cn" style="background-image: url(&quot;images/222.jpg&quot;); background-repeat: no-repeat;">

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
value: no origins were preconnected
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.

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

Diagnostics

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.

Estimated savings: 0.0 ms 22.0 KiB
URLTransfer SizeEst Savings
rcf-community.com/js/jquery-3.6.0.min.js30.2 KiB22.0 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
RCF Seal div.divNews > div.logo > div > img
rcf-community.com/images/RCF-anim-test1.gif

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

Layout shift culprits
Document request latency
Optimize DOM size
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Max Potential First Input Delay 20 ms
Minify CSS
Minify JavaScript
Reduce unused CSS
JavaScript execution time 0.0 s
Minimizes main-thread work 0.2 s
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 160 ms
Server Backend Latencies 130 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Avoid multiple page redirects
Initial server response time was short Root document took 190 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
User Timing marks and measures
Avoid long main-thread tasks
Avoid non-composited animations
53

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.

Names and labels

When an image is being used as an `<input>` button, providing alternative text can help screen reader users understand the purpose of the button. Learn about input image alt text.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
body > div.divProfileLogin > a > input body > div.divProfileLogin > a > input

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div > div > div > iframe div > div > div > iframe
body > div.divFleetTime > iframe body > div.divFleetTime > iframe

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.divNews > div.logo > p.invite > a div.divNews > div.logo > p.invite > a

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.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Active Discord: 30+ fleet channels, active voice chats, patch notes, build supp… div.default_page_container > div.divNews > div.logo > li
Fleet Projects: Constantly slotted holdings across multiple fleets div.default_page_container > div.divNews > div.logo > li
Weekly Events: TFOs, patrols, colony raids, and lore-based missions div.default_page_container > div.divNews > div.logo > li
Experienced Leadership: Veteran players with years of STO experience div.default_page_container > div.divNews > div.logo > li
Flexible Playstyles: Whether you’re casual or competitive, there’s a place for … div.default_page_container > div.divNews > div.logo > li

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div.divProfileLogin > a body > div.divProfileLogin > a

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

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-hidden="true"]` is not present on the document `<body>`
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
Links are distinguishable without relying on color.
Heading elements appear in a sequentially-descending order
`[accesskey]` values are unique
`[aria-*]` attributes match their roles
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Deprecated ARIA roles were not used
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements use only permitted ARIA attributes
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
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
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
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
ARIA IDs are unique
No form fields have multiple labels
`<html>` element has a valid value for its `[lang]` attribute
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
Form elements have associated labels
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
No element has a `[tabindex]` value greater than 0
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>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
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

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
ReferenceError: S is not defined at https://rcf-community.com/js/html.js:1:1
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
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
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 clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
100

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.

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 have descriptive text
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Send Feedback