Tools & Wizards About Us
libroteca.net screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 70

    SEO

    Google-friendlier than
    30% of websites

libroteca.net

Descarga Libros gratis. Literatura universal. Libros de idiomas. Grandes autores

Page Load Speed

4.7 sec in total

First Response

140 ms

Resources Loaded

4.1 sec

Page Rendered

420 ms

libroteca.net screenshot

About Website

Visit libroteca.net now to see the best up-to-date Libroteca content for Spain and also check out these interesting facts you probably never knew about libroteca.net

Miles de libros gratuitos. Descarga de libros. Obras y autores universales

Visit libroteca.net

Key Findings

We analyzed Libroteca.net page load time and found that the first response time was 140 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

libroteca.net performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value2,120 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value16.2 s

5/100

10%

Network Requests Diagram

libroteca.net

140 ms

estilos.css

32 ms

adsbygoogle.js

6 ms

getad.php

381 ms

Titulo-azul.gif

48 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 20% of them (16 requests) were addressed to the original Libroteca.net, 17% (14 requests) were made to A.tribalfusion.com and 9% (7 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (662 ms) relates to the external source T.adonly.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 378.7 kB (51%)

Content Size

738.1 kB

After Optimization

359.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Libroteca.net main page is 738.1 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. Javascripts take 612.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 66.1 kB

  • Original 87.1 kB
  • After minification 79.3 kB
  • After compression 21.1 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 66.1 kB or 76% of the original size.

Image Optimization

-28%

Potential reduce by 10.7 kB

  • Original 37.7 kB
  • After minification 27.0 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. Obviously, Libroteca needs image optimization as it can save up to 10.7 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-49%

Potential reduce by 301.0 kB

  • Original 612.0 kB
  • After minification 611.5 kB
  • After compression 311.1 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 301.0 kB or 49% of the original size.

CSS Optimization

-79%

Potential reduce by 958 B

  • Original 1.2 kB
  • After minification 1.0 kB
  • After compression 259 B

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. Libroteca.net needs all CSS files to be minified and compressed as it can save up to 958 B or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (51%)

Requests Now

76

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libroteca. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

libroteca.net

libroteca.net

140 ms

estilos.css

estilos.css

32 ms

adsbygoogle.js

adsbygoogle.js

6 ms

getad.php

getad.php

381 ms

Titulo-azul.gif

Titulo-azul.gif

48 ms

Borde.jpg

Borde.jpg

50 ms

Borde2.jpg

Borde2.jpg

87 ms

addthis_widget.js

addthis_widget.js

86 ms

show_ads.js

show_ads.js

9 ms

home.jpg

home.jpg

22 ms

buscar.jpg

buscar.jpg

55 ms

contacto.jpg

contacto.jpg

48 ms

Libromenu3.jpg

Libromenu3.jpg

49 ms

Ayuda2.gif

Ayuda2.gif

58 ms

Libromenu.jpg

Libromenu.jpg

84 ms

Titulo.jpg

Titulo.jpg

84 ms

Libromenu2.jpg

Libromenu2.jpg

119 ms

donacion.gif

donacion.gif

122 ms

Autor.jpg

Autor.jpg

83 ms

ca-pub-1099570448046620.js

ca-pub-1099570448046620.js

90 ms

zrt_lookup.html

zrt_lookup.html

86 ms

show_ads_impl.js

show_ads_impl.js

44 ms

analytics.js

analytics.js

16 ms

collect

collect

48 ms

pla

pla

17 ms

getad-.php

getad-.php

327 ms

pop.js

pop.js

32 ms

display.php

display.php

63 ms

ga.js

ga.js

3 ms

173016

173016

220 ms

2a56bb67d9b8f7cd0ee306826b1b2fae.gif

2a56bb67d9b8f7cd0ee306826b1b2fae.gif

483 ms

__utm.gif

__utm.gif

11 ms

display.php

display.php

199 ms

pix.html

pix.html

103 ms

Actualizaciones.asp

Actualizaciones.asp

81 ms

ads

ads

289 ms

osd.js

osd.js

42 ms

ads

ads

189 ms

ads

ads

205 ms

m_js_controller.js

m_js_controller.js

28 ms

abg.js

abg.js

54 ms

_TF336x280.asp

_TF336x280.asp

102 ms

favicon

favicon

83 ms

favicon

favicon

84 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

64 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

54 ms

s

s

39 ms

x_button_blue2.png

x_button_blue2.png

11 ms

tags.js

tags.js

310 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

6 ms

displayAd.js

displayAd.js

172 ms

j.ad

j.ad

99 ms

_PublicidadesC.asp

_PublicidadesC.asp

51 ms

p.media

p.media

78 ms

p.media

p.media

152 ms

p.media

p.media

178 ms

p.media

p.media

152 ms

p.media

p.media

152 ms

p.media

p.media

153 ms

p.media

p.media

155 ms

tag.js

tag.js

137 ms

i.match

i.match

143 ms

pixel

pixel

19 ms

i.match

i.match

98 ms

i.match

i.match

92 ms

hmac-sha1.js

hmac-sha1.js

20 ms

adsNew.php

adsNew.php

335 ms

i.match

i.match

96 ms

i.match

i.match

87 ms

m

m

37 ms

ifrCore.php

ifrCore.php

331 ms

clkJS_min.js

clkJS_min.js

330 ms

300x250.js

300x250.js

662 ms

rtbpopd.com

rtbpopd.com

184 ms

ajs.php

ajs.php

98 ms

15b6e5f0e66a7b49357d519aafa7259a.png

15b6e5f0e66a7b49357d519aafa7259a.png

85 ms

lg.php

lg.php

181 ms

collect

collect

11 ms

static.html

static.html

95 ms

ui

ui

48 ms

atrk.gif

atrk.gif

47 ms

collect

collect

21 ms

Accessibility Review

libroteca.net accessibility score

62

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-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

libroteca.net best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

libroteca.net SEO score

70

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    ES

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Libroteca.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 Libroteca.net main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

libroteca.net

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