Tools & Wizards About Us
51.ca screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

51.ca

加国无忧 - 加拿大华人网上家园

Page Load Speed

3.4 sec in total

First Response

70 ms

Resources Loaded

2.5 sec

Page Rendered

877 ms

51.ca screenshot

About Website

Visit 51.ca now to see the best up-to-date 51 content for Canada and also check out these interesting facts you probably never knew about 51.ca

加国无忧 51.CA，面向加拿大华人的生活信息网站，旨在为新老移民、留学生提供自由交流的平台。突出互动、实用和免费的特性，服务内容涵盖华人生活的各个方面。

Visit 51.ca

Key Findings

We analyzed 51.ca page load time and found that the first response time was 70 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

51.ca performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value36.6 s

0/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value600 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

51.ca

70 ms

www.51.ca

210 ms

global.min.css

29 ms

topnav.css

40 ms

jquery-1.8.3.min.js

52 ms

Our browser made a total of 252 requests to load all elements on the main page. We found that 17% of them (42 requests) were addressed to the original 51.ca, 40% (100 requests) were made to Engine.wuyou.ca and 17% (44 requests) were made to Cdn.wuyou.ca. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source S3.51img.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 969.1 kB (9%)

Content Size

10.4 MB

After Optimization

9.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51.ca main page is 10.4 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. Only a small number of websites need less resources to load. Images take 10.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 196.9 kB

  • Original 235.9 kB
  • After minification 214.3 kB
  • After compression 39.0 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. 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 196.9 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 765.7 kB

  • Original 10.0 MB
  • After minification 9.2 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. 51 images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 4.5 kB

  • Original 90.4 kB
  • After minification 90.3 kB
  • After compression 85.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-11%

Potential reduce by 1.9 kB

  • Original 17.7 kB
  • After minification 17.7 kB
  • After compression 15.8 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. 51.ca needs all CSS files to be minified and compressed as it can save up to 1.9 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 141 (57%)

Requests Now

248

After Optimization

107

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 248 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51. 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 from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

51.ca

51.ca

70 ms

www.51.ca

www.51.ca

210 ms

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29 ms

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40 ms

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33 ms

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Accessibility Review

51.ca accessibility score

57

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

51.ca best practices score

42

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

51.ca SEO score

62

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

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51.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 51.ca main page’s claimed encoding is gb2312. 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

51.ca

Open Graph description is not detected on the main page of 51. 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: