Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

book.cn411.ca

Web Server's Default Page

Page Load Speed

1.7 sec in total

First Response

563 ms

Resources Loaded

995 ms

Page Rendered

139 ms

book.cn411.ca screenshot

About Website

Click here to check amazing Book Cn 411 content for Canada. Otherwise, check out these important facts you probably never knew about book.cn411.ca

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Visit book.cn411.ca

Key Findings

We analyzed Book.cn411.ca page load time and found that the first response time was 563 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster. This domain responded with an error, which can significantly jeopardize Book.cn411.ca rating and web reputation

Performance Metrics

book.cn411.ca performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value1,190 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.135

80/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

book.cn411.ca

563 ms

WebStyle01.css

323 ms

PopWindow.js

253 ms

WebResource.axd

388 ms

ScriptResource.axd

247 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that all of those requests were addressed to Book.cn411.ca and no external sources were called. The less responsive or slowest element that took the longest time to load (563 ms) belongs to the original domain Book.cn411.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 48.8 kB (53%)

Content Size

91.4 kB

After Optimization

42.6 kB

In fact, the total size of Book.cn411.ca main page is 91.4 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. Only 10% of websites need less resources to load. HTML takes 45.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 37.4 kB

  • Original 45.7 kB
  • After minification 27.8 kB
  • After compression 8.3 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. This page needs HTML code to be minified as it can gain 17.9 kB, which is 39% 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 37.4 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 59 B

  • Original 32.2 kB
  • After minification 32.2 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. Book Cn 411 images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 2.6 kB

  • Original 3.3 kB
  • After minification 2.7 kB
  • After compression 718 B

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 2.6 kB or 78% of the original size.

CSS Optimization

-86%

Potential reduce by 8.8 kB

  • Original 10.2 kB
  • After minification 9.2 kB
  • After compression 1.4 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. Book.cn411.ca needs all CSS files to be minified and compressed as it can save up to 8.8 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (65%)

Requests Now

20

After Optimization

7

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book Cn 411. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

book.cn411.ca accessibility score

53

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

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

Document doesn't have a <title> element

High

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

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

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

book.cn411.ca best practices score

67

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

High

Browser errors were logged to the console

SEO Factors

book.cn411.ca SEO score

62

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Book.cn411.ca can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Book.cn411.ca 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 Book Cn 411. 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: