Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

lacentral.cat

La Central, librería online - Librerías en Madrid y Barcelona – Atril

Page Load Speed

99.6 sec in total

First Response

645 ms

Resources Loaded

26.8 sec

Page Rendered

72.2 sec

lacentral.cat screenshot

About Website

Visit lacentral.cat now to see the best up-to-date La Central content and also check out these interesting facts you probably never knew about lacentral.cat

Compra tus libros online en La Central o visita nuestras librerías en Madrid y Barcelona. Descubre los libros más vendidos en España y el extranjero

Visit lacentral.cat

Key Findings

We analyzed Lacentral.cat page load time and found that the first response time was 645 ms and then it took 98.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

lacentral.cat performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value2,700 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.242

51/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

lacentral.cat

645 ms

www.lacentral.com

2083 ms

css2

1729 ms

all.min.css

2425 ms

slick.min.css

2723 ms

Our browser made a total of 161 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lacentral.cat, 88% (141 requests) were made to Lacentral.com and 6% (9 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (6.4 sec) relates to the external source Lacentral.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 145.7 kB (3%)

Content Size

5.4 MB

After Optimization

5.3 MB

In fact, the total size of Lacentral.cat main page is 5.4 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 145.4 kB

  • Original 170.2 kB
  • After minification 159.8 kB
  • After compression 24.7 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 145.4 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 5.2 MB
  • After minification 5.2 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. La Central images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 233 B

  • Original 13.0 kB
  • After minification 13.0 kB
  • After compression 12.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 48.6 kB
  • After minification 48.6 kB
  • After compression 48.6 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. Lacentral.cat has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (9%)

Requests Now

148

After Optimization

134

The browser has sent 148 CSS, Javascripts, AJAX and image requests in order to completely render the main page of La Central. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

lacentral.cat accessibility score

96

Accessibility Issues

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.

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

Links do not have a discernible name

Best Practices

lacentral.cat best practices score

92

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

Page has valid source maps

SEO Factors

lacentral.cat SEO score

94

Search Engine Optimization Advices

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 Lacentral.cat 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 Lacentral.cat 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 description is not detected on the main page of La Central. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: