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libros.com.mx screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

libros.com.mx

Libros - Tienda Oficial México

Page Load Speed

1.6 sec in total

First Response

19 ms

Resources Loaded

995 ms

Page Rendered

587 ms

libros.com.mx screenshot

About Website

Visit libros.com.mx now to see the best up-to-date Libros content and also check out these interesting facts you probably never knew about libros.com.mx

Descubre en ROYCESHOP lo que más te gusta de Libros Físicos con las mejores ofertas. ¡Encuentra promociones y descuentos en toda la tienda!

Visit libros.com.mx

Key Findings

We analyzed Libros.com.mx page load time and found that the first response time was 19 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

libros.com.mx performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value1,230 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

Network Requests Diagram

libros.com.mx

19 ms

www.libros.com.mx

332 ms

navigation.css

52 ms

home.css

154 ms

styles.css

82 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Libros.com.mx, 85% (23 requests) were made to Http2.mlstatic.com and 7% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (406 ms) relates to the external source Http2.mlstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 343.2 kB (59%)

Content Size

586.4 kB

After Optimization

243.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Libros.com.mx main page is 586.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. HTML takes 431.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 342.7 kB

  • Original 431.9 kB
  • After minification 422.0 kB
  • After compression 89.2 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 342.7 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 67.1 kB
  • After minification 67.1 kB

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. Libros images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 34.2 kB
  • After minification 34.2 kB
  • After compression 34.2 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

-1%

Potential reduce by 452 B

  • Original 53.1 kB
  • After minification 53.1 kB
  • After compression 52.7 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. Libros.com.mx has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (24%)

Requests Now

21

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libros. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

libros.com.mx

libros.com.mx

19 ms

www.libros.com.mx

www.libros.com.mx

332 ms

navigation.css

navigation.css

52 ms

home.css

home.css

154 ms

styles.css

styles.css

82 ms

home-electronics-desktop.eb11d4c6.css

home-electronics-desktop.eb11d4c6.css

62 ms

css2

css2

39 ms

css2

css2

25 ms

logo-2023032014081938500.webp

logo-2023032014081938500.webp

154 ms

mlm-mshops-analytics.min.js

mlm-mshops-analytics.min.js

127 ms

melidata.min.js

melidata.min.js

120 ms

D_NQ_NP_777130-MLA54488961412_032023-OO.webp

D_NQ_NP_777130-MLA54488961412_032023-OO.webp

117 ms

credit-card-v1.svg

credit-card-v1.svg

104 ms

payment-logos-mlm-large_v_3784d996dd.png

payment-logos-mlm-large_v_3784d996dd.png

115 ms

view-more-v1.svg

view-more-v1.svg

117 ms

D_NQ_NP_878293-MLA54808743040_042023-F.webp

D_NQ_NP_878293-MLA54808743040_042023-F.webp

118 ms

D_NQ_NP_819439-MLA54804439931_042023-F.webp

D_NQ_NP_819439-MLA54804439931_042023-F.webp

165 ms

D_NQ_NP_664113-MLA54804439953_042023-F.webp

D_NQ_NP_664113-MLA54804439953_042023-F.webp

258 ms

D_NQ_NP_685654-MLA54808743246_042023-F.webp

D_NQ_NP_685654-MLA54808743246_042023-F.webp

125 ms

D_NQ_NP_905637-MLA54804826751_042023-F.webp

D_NQ_NP_905637-MLA54804826751_042023-F.webp

128 ms

D_NQ_NP_716174-MLA54804832745_042023-F.webp

D_NQ_NP_716174-MLA54804832745_042023-F.webp

123 ms

D_NQ_NP_907762-MLA54804519467_042023-F.webp

D_NQ_NP_907762-MLA54804519467_042023-F.webp

154 ms

D_NQ_NP_630399-MLA54804439977_042023-F.webp

D_NQ_NP_630399-MLA54804439977_042023-F.webp

143 ms

D_NQ_NP_973401-MLA54487725619_032023-OO.webp

D_NQ_NP_973401-MLA54487725619_032023-OO.webp

406 ms

proximanova-regular.woff

proximanova-regular.woff

203 ms

proximanova-light.woff

proximanova-light.woff

219 ms

proximanova-semibold.woff

proximanova-semibold.woff

220 ms

Accessibility Review

libros.com.mx accessibility score

87

Accessibility Issues

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

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

libros.com.mx 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

libros.com.mx SEO score

93

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

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

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 Libros.com.mx 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 Libros.com.mx 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

libros.com.mx

Open Graph description is not detected on the main page of Libros. 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: