Rmf.fm Radio RMF FM
Radio numer 1 w Polsce! Największa i najpopularniejsza stacja muzyczno-informacyjna. Zawsze najlepsza muzyka i najświeższe fakty. Posłuchaj radio onli...
rmf.fm Desktop Performance
68/100
These metrics represent real-world Chrome users experience viewing rmf.fm web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
First Input Delay
Largest Contentful Paint
Cumulative Layout Shift
First Contentful Paint
Metrics
Largest Contentful Paint21/100 3.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Speed Index62/100 2.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Time to Interactive77/100 3.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint83/100 1.1 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Cumulative Layout Shift91/100 0.094
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Total Blocking Time100/100 20 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Should Fix (20)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Preload key requests
Potential savings of 1,120 ms
1,120 ms
Serve images in next-gen formats
Potential savings of 679 KiB
800 ms
Remove unused JavaScript
Potential savings of 165 KiB
560 ms
Avoid multiple page redirects
Potential savings of 380 ms
380 ms
Efficiently encode images
Potential savings of 278 KiB
320 ms
Eliminate render-blocking resources
Potential savings of 270 ms
272 ms
Remove unused CSS
Potential savings of 27 KiB
160 ms
Defer offscreen images
Potential savings of 154 KiB
80 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Ensure text remains visible during webfont load
Avoid `document.write()`
Does not use passive listeners to improve scrolling performance
Serve static assets with an efficient cache policy
65 resources found
Avoid an excessive DOM size
1,025 elements
Minimizes main-thread work
1.7 s
User Timing marks and measures
7 user timings
Keep request counts low and transfer sizes small
149 requests • 2,200 KiB
Avoid long main-thread tasks
2 long tasks found
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
15 chains found
Largest Contentful Paint element
1 element found
Passed Audits (10)
Minify CSS
Preconnect to required origins
Minify JavaScript
Properly size images
Potential savings of 57 KiB
Minimize third-party usage
Third-party code blocked the main thread for 20 ms
Initial server response time was short
Root document took 180 ms
Enable text compression
JavaScript execution time
0.8 s
Avoids enormous network payloads
Total size was 2,200 KiB
Use video formats for animated content
rmf.fm Desktop SEO
83/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (2)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Passed Audits (10)
Links have descriptive text
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Document has a valid `hreflang`
Page isn’t blocked from indexing
robots.txt is valid
Document avoids plugins
Document has a valid `rel=canonical`
Document has a `<title>` element
Page has successful HTTP status code
Document has a meta description
rmf.fm Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of rmf.fm page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (4)
General
Browser errors were logged to the console
Trust and Safety
Links to cross-origin destinations are unsafe
Includes front-end JavaScript libraries with known security vulnerabilities
3 vulnerabilities detected
Does not use HTTPS
2 insecure requests found
Passed Audits (10)
Displays images with correct aspect ratio
Allows users to paste into password fields
Avoids requesting the notification permission on page load
Avoids deprecated APIs
Properly defines charset
Page has the HTML doctype
Avoids requesting the geolocation permission on page load
Serves images with appropriate resolution
Avoids Application Cache
Detected JavaScript libraries
rmf.fm Desktop Progressive Web App
26/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (8)
Fast and reliable
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 16.8 s
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Installable
Web app manifest does not meet the installability requirements
Does not use HTTPS
2 insecure requests found
PWA Optimized
Does not set a theme color for the address bar.
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Passed Audits (5)
Registers a service worker that controls page and `start_url`
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Provides a valid `apple-touch-icon`
Redirects HTTP traffic to HTTPS
Contains some content when JavaScript is not available
rmf.fm Desktop Accessibility
74/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (4)
Names and labels
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.
`<frame>` or `<iframe>` elements do not have a title
Links do not have a discernible name
Image elements do not have `[alt]` attributes
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (11)
The page contains a heading, skip link, or landmark region
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
`<html>` element has a valid value for its `[lang]` attribute
`[aria-hidden="true"]` is not present on the document `<body>`
`[id]` attributes on active, focusable elements are unique
Buttons have an accessible name
Heading elements appear in a sequentially-descending order
`<html>` element has a `[lang]` attribute
Document has a `<title>` element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Desktop Speed
64/100
These checks analyze the performance of rmf.fm on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (8)
Optimize images
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Avoid landing page redirects
Leverage browser caching
Minify CSS
Minify JavaScript
Enable compression
Minify HTML
Passed Audits (2)
Reduce server response time
Prioritize visible content
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