Tools & Wizards About Us
rong-chang.com screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

rong-chang.com

ESL: English as a Second Language - Free English learning resources

Page Load Speed

1.5 sec in total

First Response

87 ms

Resources Loaded

1.2 sec

Page Rendered

199 ms

rong-chang.com screenshot

About Website

Click here to check amazing Rong Chang content for United States. Otherwise, check out these important facts you probably never knew about rong-chang.com

A huge free online English learning resource, with over 2,500 conversations and 3,000 short stories, essays, with audio and exercises for listening, speaking, reading, and writing.

Visit rong-chang.com

Key Findings

We analyzed Rong-chang.com page load time and found that the first response time was 87 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

rong-chang.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value2,620 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.077

95/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

rong-chang.com

87 ms

analytics.js

40 ms

buttons.js

5 ms

adsbygoogle.js

22 ms

mike.jpg

86 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 10% of them (6 requests) were addressed to the original Rong-chang.com, 16% (10 requests) were made to Googleads.g.doubleclick.net and 11% (7 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (647 ms) relates to the external source Static.xx.fbcdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 191.6 kB (51%)

Content Size

375.4 kB

After Optimization

183.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Rong-chang.com main page is 375.4 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. 55% of websites need less resources to load. Javascripts take 236.4 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 25.3 kB

  • Original 33.5 kB
  • After minification 33.3 kB
  • After compression 8.2 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 25.3 kB or 75% of the original size.

Image Optimization

-8%

Potential reduce by 8.6 kB

  • Original 105.5 kB
  • After minification 96.8 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. Rong Chang images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 157.7 kB

  • Original 236.4 kB
  • After minification 236.1 kB
  • After compression 78.7 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 157.7 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (59%)

Requests Now

56

After Optimization

23

  • AJAX
  • Images
  • JavaScript

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rong Chang. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rong-chang.com

rong-chang.com

87 ms

analytics.js

analytics.js

40 ms

buttons.js

buttons.js

5 ms

adsbygoogle.js

adsbygoogle.js

22 ms

mike.jpg

mike.jpg

86 ms

show_ads.js

show_ads.js

23 ms

tm18475.js

tm18475.js

91 ms

android_tutor.png

android_tutor.png

105 ms

eslbar1.gif

eslbar1.gif

105 ms

proverb.gif

proverb.gif

105 ms

brand

brand

64 ms

s.png

s.png

63 ms

ca-pub-7363809219244122.js

ca-pub-7363809219244122.js

79 ms

zrt_lookup.html

zrt_lookup.html

138 ms

show_ads_impl.js

show_ads_impl.js

74 ms

beacon.js

beacon.js

72 ms

ca-pub-4240992229388079.js

ca-pub-4240992229388079.js

123 ms

collect

collect

85 ms

brand

brand

133 ms

usr

usr

208 ms

ads

ads

257 ms

osd.js

osd.js

17 ms

ads

ads

172 ms

ads

ads

287 ms

ads

ads

316 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

133 ms

getAllAppDefault.esi

getAllAppDefault.esi

103 ms

ads

ads

270 ms

req

req

86 ms

pixel

pixel

53 ms

ads

ads

283 ms

ads

ads

167 ms

ads

ads

185 ms

abg.js

abg.js

59 ms

pixel

pixel

30 ms

follow

follow

140 ms

sync

sync

145 ms

getSegment.php

getSegment.php

30 ms

checkOAuth.esi

checkOAuth.esi

94 ms

sync

sync

129 ms

m_js_controller.js

m_js_controller.js

18 ms

t.dhj

t.dhj

104 ms

favicon

favicon

123 ms

s

s

48 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

116 ms

nessie_icon_thin_arrow_big_white.png

nessie_icon_thin_arrow_big_white.png

74 ms

x_button_blue2.png

x_button_blue2.png

81 ms

17398691934042603831

17398691934042603831

61 ms

vpc6VNjRPXV.js

vpc6VNjRPXV.js

581 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

647 ms

favicon

favicon

143 ms

t.dhj

t.dhj

97 ms

favicon

favicon

212 ms

favicon

favicon

141 ms

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

28 ms

cm

cm

117 ms

s-3271.xgi

s-3271.xgi

101 ms

hbpix

hbpix

59 ms

34 ms

27 ms

pixel

pixel

20 ms

xrefid.xgi

xrefid.xgi

6 ms

2981

2981

30 ms

Accessibility Review

rong-chang.com accessibility score

50

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

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

rong-chang.com best practices score

75

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

Page has valid source maps

SEO Factors

rong-chang.com SEO score

85

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

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

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rong-chang.com 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 Rong-chang.com main page’s claimed encoding is windows-1252. 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

rong-chang.com

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