Tools & Wizards About Us
freelibros.net screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

freelibros.net

FreeLibros – Tu Biblioteca Virtual

Page Load Speed

2.8 sec in total

First Response

218 ms

Resources Loaded

1.6 sec

Page Rendered

1 sec

freelibros.net screenshot

About Website

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

FreeLibros es una biblioteca virtual para compartir libros en diferentes formatos para los estudiantes y amantes de la lectura, con descargas desde mega, drive.

Visit freelibros.net

Key Findings

We analyzed Freelibros.net page load time and found that the first response time was 218 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

freelibros.net performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

74/100

25%

SI (Speed Index)

Value4.7 s

69/100

10%

TBT (Total Blocking Time)

Value1,350 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.112

86/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

freelibros.net

218 ms

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50 ms

css

29 ms

LYxBDoAgDAQ_JDSGg-8hBRWkFKEc_L2QcNpNZjIG4tt9_TazjqJwVSteU8jbDtFLsfgAsevJNyg3C-c1gyNnsSjq5ErqgJAxdTe82FZPTzJjPw.js

111 ms

M9RPzs8rSUwu0U3LL8rVNdfPzEvOKU1JLdbPKtYvTi7KLCgpBgA.js

9 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Freelibros.net, 36% (27 requests) were made to Freelibros.org and 27% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (406 ms) relates to the external source Vegacorp.me.

Page Optimization Overview & Recommendations

Page size can be reduced by 567.2 kB (60%)

Content Size

946.6 kB

After Optimization

379.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Freelibros.net main page is 946.6 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. 55% of websites need less resources to load. Javascripts take 418.3 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 102.0 kB

  • Original 123.3 kB
  • After minification 123.2 kB
  • After compression 21.3 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 102.0 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 10.1 kB

  • Original 182.1 kB
  • After minification 172.0 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. Free Libros images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 269.1 kB

  • Original 418.3 kB
  • After minification 418.2 kB
  • After compression 149.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 269.1 kB or 64% of the original size.

CSS Optimization

-83%

Potential reduce by 186.1 kB

  • Original 222.9 kB
  • After minification 221.7 kB
  • After compression 36.9 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. Freelibros.net needs all CSS files to be minified and compressed as it can save up to 186.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (53%)

Requests Now

72

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Free 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 25 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

freelibros.net

freelibros.net

218 ms

jcxBDsMwCATAD4WSnvIeh2CJ1obIYEX9fSOrRx96W61md8XcmIvszRzOZkjumK3rkUJMH1V0WedGA9LFbpX_UyC8zaXHp_D8gLqH1eWJdD8lCsjWKmwoSqUf7AONvd_oxXEmeo_yl78.css

jcxBDsMwCATAD4WSnvIeh2CJ1obIYEX9fSOrRx96W61md8XcmIvszRzOZkjumK3rkUJMH1V0WedGA9LFbpX_UyC8zaXHp_D8gLqH1eWJdD8lCsjWKmwoSqUf7AONvd_oxXEmeo_yl78.css

50 ms

css

css

29 ms

LYxBDoAgDAQ_JDSGg-8hBRWkFKEc_L2QcNpNZjIG4tt9_TazjqJwVSteU8jbDtFLsfgAsevJNyg3C-c1gyNnsSjq5ErqgJAxdTe82FZPTzJjPw.js

LYxBDoAgDAQ_JDSGg-8hBRWkFKEc_L2QcNpNZjIG4tt9_TazjqJwVSteU8jbDtFLsfgAsevJNyg3C-c1gyNnsSjq5ErqgJAxdTe82FZPTzJjPw.js

111 ms

M9RPzs8rSUwu0U3LL8rVNdfPzEvOKU1JLdbPKtYvTi7KLCgpBgA.js

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9 ms

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6 ms

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fY07FoAgDAQvJJ8roQSND5K8BBpPr50NWu_sTAxFASquyuZEOZwWGmdQwkt94UE5dWRa4gTchnVu7oD0HKbEK_AN5xKpY0eyzz2J_MULcwe9AQ.js

17 ms

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7 ms

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Accessibility Review

freelibros.net accessibility score

81

Accessibility Issues

Tables and lists

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

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

freelibros.net best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

freelibros.net 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 Freelibros.net 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 Freelibros.net 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

freelibros.net

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