Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

i2s-bookscanner.com

Systonic : nom de domaine déposé

Page Load Speed

3.2 sec in total

First Response

317 ms

Resources Loaded

2.7 sec

Page Rendered

250 ms

i2s-bookscanner.com screenshot

About Website

Welcome to i2s-bookscanner.com homepage info - get ready to check I 2 S Bookscanner best content right away, or after learning these important things about i2s-bookscanner.com

Nom de domaine reservé par Systonic

Visit i2s-bookscanner.com

Key Findings

We analyzed I2s-bookscanner.com page load time and found that the first response time was 317 ms and then it took 2.9 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

i2s-bookscanner.com performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.109

87/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

i2s-bookscanner.com

317 ms

www.i2s-digibook.com

1481 ms

language-selector.css

158 ms

screen.css

249 ms

screen-tablet.css

168 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original I2s-bookscanner.com, 68% (32 requests) were made to I2s-digibook.com and 11% (5 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source I2s-digibook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 250.4 kB (29%)

Content Size

854.3 kB

After Optimization

603.9 kB

In fact, the total size of I2s-bookscanner.com main page is 854.3 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. 30% of websites need less resources to load. Images take 442.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.2 kB

  • Original 31.5 kB
  • After minification 28.5 kB
  • After compression 7.3 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 24.2 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 15.5 kB

  • Original 442.8 kB
  • After minification 427.3 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. I 2 S Bookscanner images are well optimized though.

JavaScript Optimization

-41%

Potential reduce by 107.3 kB

  • Original 258.7 kB
  • After minification 246.5 kB
  • After compression 151.4 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 107.3 kB or 41% of the original size.

CSS Optimization

-85%

Potential reduce by 103.4 kB

  • Original 121.4 kB
  • After minification 87.4 kB
  • After compression 17.9 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. I2s-bookscanner.com needs all CSS files to be minified and compressed as it can save up to 103.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (52%)

Requests Now

44

After Optimization

21

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I 2 S Bookscanner. 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 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

i2s-bookscanner.com accessibility score

49

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.

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

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

i2s-bookscanner.com 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

i2s-bookscanner.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I2s-bookscanner.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that I2s-bookscanner.com 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 I 2 S Bookscanner. 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: