Report Summary

  • 51

    Performance

    Renders faster than
    70% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

worldlibrary.org

World Public Library

Page Load Speed

5.7 sec in total

First Response

504 ms

Resources Loaded

3.9 sec

Page Rendered

1.2 sec

worldlibrary.org screenshot

About Website

Click here to check amazing World Library content for India. Otherwise, check out these important facts you probably never knew about worldlibrary.org

World Public Library - Publics

Visit worldlibrary.org

Key Findings

We analyzed Worldlibrary.org page load time and found that the first response time was 504 ms and then it took 5.2 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

worldlibrary.org performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

worldlibrary.org

504 ms

bootstrap.css

681 ms

animate.css

565 ms

bannerscollection_zoominout.css

246 ms

modernizr.js

592 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 16% of them (12 requests) were addressed to the original Worldlibrary.org, 64% (48 requests) were made to Read.images.worldlibrary.net and 17% (13 requests) were made to Ebook2.worldlibrary.net. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Read.images.worldlibrary.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (37%)

Content Size

2.7 MB

After Optimization

1.7 MB

In fact, the total size of Worldlibrary.org main page is 2.7 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. 35% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 36.3 kB

  • Original 44.3 kB
  • After minification 38.2 kB
  • After compression 8.0 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. This page needs HTML code to be minified as it can gain 6.0 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 36.3 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 52.0 kB

  • Original 1.5 MB
  • After minification 1.4 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. World Library images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 636.5 kB

  • Original 837.8 kB
  • After minification 660.3 kB
  • After compression 201.3 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 636.5 kB or 76% of the original size.

CSS Optimization

-86%

Potential reduce by 294.6 kB

  • Original 342.2 kB
  • After minification 293.1 kB
  • After compression 47.5 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. Worldlibrary.org needs all CSS files to be minified and compressed as it can save up to 294.6 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (38%)

Requests Now

72

After Optimization

45

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of World Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

worldlibrary.org accessibility score

67

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

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

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

worldlibrary.org 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

worldlibrary.org SEO score

92

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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