Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

rockfon.es

Rockfon | Techos acústicos y paneles foboabsorbentes

Page Load Speed

3.1 sec in total

First Response

228 ms

Resources Loaded

1.6 sec

Page Rendered

1.3 sec

rockfon.es screenshot

About Website

Click here to check amazing Rockfon content. Otherwise, check out these important facts you probably never knew about rockfon.es

Rockfon, empresa líder en las soluciones acústicas de lana de roca. Fabricante de paneles acústicos de techo y pared, bafles y perfilería.

Visit rockfon.es

Key Findings

We analyzed Rockfon.es page load time and found that the first response time was 228 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

rockfon.es performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

rockfon.es

228 ms

www.rockfon.es

1125 ms

style-rockfon.14cd96fdba8029422f0b.css

20 ms

O3-3-home-page-hero-slider.7ec717bf2ac6c3ba313b.css

35 ms

O3-2-new-home-page-hero.cb73be020bf681c46649.css

38 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Rockfon.es, 51% (25 requests) were made to P-cdn.rockfon.com and 43% (21 requests) were made to Img.rockwool.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Rockfon.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 240.5 kB (9%)

Content Size

2.6 MB

After Optimization

2.4 MB

In fact, the total size of Rockfon.es main page is 2.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 236.9 kB

  • Original 277.7 kB
  • After minification 273.2 kB
  • After compression 40.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 236.9 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 1.7 kB

  • Original 2.3 MB
  • After minification 2.3 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Rockfon images are well optimized though.

CSS Optimization

-3%

Potential reduce by 1.9 kB

  • Original 58.6 kB
  • After minification 58.6 kB
  • After compression 56.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Rockfon.es has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (44%)

Requests Now

43

After Optimization

24

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rockfon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rockfon.es accessibility score

67

Accessibility Issues

ARIA

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.

Impact

Issue

High

ARIA input fields do not have accessible names

High

ARIA IDs are not unique

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

rockfon.es best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

rockfon.es SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rockfon.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it matches the claimed language. Our system also found out that Rockfon.es main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph data is detected on the main page of Rockfon. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: