Tools & Wizards About Us
lidel.pt screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

lidel.pt

LIDEL - Livros de Medicina, Ciências, PLE, Gestão, Hotelaria - Grupo LIDEL

Page Load Speed

5 sec in total

First Response

402 ms

Resources Loaded

4.3 sec

Page Rendered

294 ms

lidel.pt screenshot

About Website

Welcome to lidel.pt homepage info - get ready to check LIDEL best content for Russia right away, or after learning these important things about lidel.pt

O Grupo LIDEL é o principal grupo editorial português de livros técnicos e universitários. Apresenta em catálogo mais de 1.000 obras em português.

Visit lidel.pt

Key Findings

We analyzed Lidel.pt page load time and found that the first response time was 402 ms and then it took 4.5 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

lidel.pt performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.135

80/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

lidel.pt

402 ms

991 ms

js

75 ms

select2.css

96 ms

jquery.mCustomScrollbar.css

183 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 77% of them (101 requests) were addressed to the original Lidel.pt, 9% (12 requests) were made to Static.xx.fbcdn.net and 7% (9 requests) were made to Cookie-cdn.cookiepro.com. The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain Lidel.pt.

Page Optimization Overview & Recommendations

Page size can be reduced by 331.5 kB (14%)

Content Size

2.3 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lidel.pt main page is 2.3 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 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 154.5 kB

  • Original 188.1 kB
  • After minification 178.1 kB
  • After compression 33.5 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 154.5 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 38.8 kB

  • Original 1.7 MB
  • After minification 1.7 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. LIDEL images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 133.6 kB

  • Original 381.5 kB
  • After minification 317.3 kB
  • After compression 247.9 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 133.6 kB or 35% of the original size.

CSS Optimization

-14%

Potential reduce by 4.5 kB

  • Original 32.6 kB
  • After minification 32.6 kB
  • After compression 28.1 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. Lidel.pt needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (53%)

Requests Now

127

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LIDEL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lidel.pt

lidel.pt

402 ms

991 ms

js

js

75 ms

select2.css

select2.css

96 ms

jquery.mCustomScrollbar.css

jquery.mCustomScrollbar.css

183 ms

geral_lidel.css

geral_lidel.css

354 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

272 ms

jquery-ui-1.10.2.custom.min.css

jquery-ui-1.10.2.custom.min.css

269 ms

formbuilder3.css

formbuilder3.css

270 ms

estilos.php

estilos.php

271 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

361 ms

jquery-migrate-1.4.1.min.js

jquery-migrate-1.4.1.min.js

360 ms

jquery-migrate-3.3.2.min.js

jquery-migrate-3.3.2.min.js

360 ms

jquery-ui-1.10.2.custom.min.js

jquery-ui-1.10.2.custom.min.js

528 ms

formbuilder3.js

formbuilder3.js

361 ms

select2.js

select2.js

442 ms

jquery.cycle.all.js

jquery.cycle.all.js

523 ms

jquery.easytabs.js

jquery.easytabs.js

440 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

442 ms

jquery.caroufredsel.js

jquery.caroufredsel.js

444 ms

placeholder.js

placeholder.js

525 ms

jquery.mCustomScrollbar.js

jquery.mCustomScrollbar.js

577 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

576 ms

script.js

script.js

578 ms

customFile.js

customFile.js

610 ms

addthis_widget.js

addthis_widget.js

148 ms

otSDKStub.js

otSDKStub.js

55 ms

js

js

61 ms

fbevents.js

fbevents.js

66 ms

f4153435-80ca-4e57-b3f5-d6cb5b0c09a9-test.json

f4153435-80ca-4e57-b3f5-d6cb5b0c09a9-test.json

145 ms

logo-lidel-print.png

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103 ms

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102 ms

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104 ms

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106 ms

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377 ms

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289 ms

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211 ms

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287 ms

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287 ms

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211 ms

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292 ms

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291 ms

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373 ms

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377 ms

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378 ms

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380 ms

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382 ms

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460 ms

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546 ms

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808 ms

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549 ms

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464 ms

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463 ms

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547 ms

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550 ms

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549 ms

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656 ms

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656 ms

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657 ms

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657 ms

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657 ms

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745 ms

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743 ms

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746 ms

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logo-seara.png

747 ms

sdk.js

sdk.js

42 ms

i006574.png

i006574.png

727 ms

sdk.js

sdk.js

35 ms

din-medium-webfont.woff

din-medium-webfont.woff

731 ms

din-regular-webfont.woff

din-regular-webfont.woff

730 ms

din-bold-webfont.woff

din-bold-webfont.woff

731 ms

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logo-Lisboa-2020.png

694 ms

location

location

95 ms

logo-2020.png

logo-2020.png

647 ms

logo-ue.png

logo-ue.png

685 ms

otBannerSdk.js

otBannerSdk.js

20 ms

pt.json

pt.json

135 ms

bg-header.gif

bg-header.gif

632 ms

seta-menu-topo.png

seta-menu-topo.png

632 ms

seta-siganos.png

seta-siganos.png

632 ms

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629 ms

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629 ms

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607 ms

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627 ms

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627 ms

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627 ms

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623 ms

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622 ms

otFloatingRoundedCorner.json

otFloatingRoundedCorner.json

125 ms

otPcPanel.json

otPcPanel.json

154 ms

otCommonStyles.css

otCommonStyles.css

137 ms

icon-login-topo.png

icon-login-topo.png

608 ms

icon-carrinho-topo.png

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626 ms

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625 ms

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544 ms

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544 ms

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543 ms

Livros_Azul.svg

Livros_Azul.svg

604 ms

Digital_cinza.svg

Digital_cinza.svg

624 ms

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59 ms

poweredBy_cp_logo.svg

poweredBy_cp_logo.svg

16 ms

bg-newsletter-left.png

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521 ms

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521 ms

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522 ms

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524 ms

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522 ms

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522 ms

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522 ms

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522 ms

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519 ms

select2.png

select2.png

516 ms

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516 ms

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88 ms

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87 ms

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Accessibility Review

lidel.pt accessibility score

79

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

lidel.pt best practices score

58

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

lidel.pt SEO score

76

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

    PT

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lidel.pt can be misinterpreted by Google and other search engines. Our service has detected that Portuguese is used on the page, and it matches the claimed language. Our system also found out that Lidel.pt 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

lidel.pt

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