Analyze

ef.cn: The biggest Online English School with Live Teachers | EF English Live

EF English Live has native-speaking teachers, available for you 24/7. Start learning English now with us! Click for More!

Page load speed analysis

  • 62/100

    Normal result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    1.7 sec

  • Resources loaded

    2.8 sec

  • Page rendered

    428 ms

  • Total page load time

    5 sec

Welcome to ef.cn homepage info - get ready to check EF best content for China right away, or after learning these important things about ef.cn

We analyzed Ef.cn page load time and found that the first response time was 1.7 sec and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Page optimization

  • HTML 128.6 kB
    Images 292.5 kB
    Javascripts 909.8 kB
    CSS 250.7 kB

    In fact, the total size of Ef.cn main page is 1.6 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. 70% of websites need less resources to load. Javascripts take 909.8 kB which makes up the majority of the site volume.

    • Original 128.6 kB
    • After minification 127.4 kB
    • After compression 18.2 kB

    HTML optimization

    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 110.5 kB or 86% of the original size.

    • Original 292.5 kB
    • After optimization 275.2 kB

    Image optimization

    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. EF images are well optimized though.

    • Original 909.8 kB
    • After minification 902.4 kB
    • After compression 283.5 kB

    JavaScript optimization

    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 626.3 kB or 69% of the original size.

    • Original 250.7 kB
    • After minification 248.1 kB
    • After compression 44.9 kB

    CSS optimization

    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. Ef.cn needs all CSS files to be minified and compressed as it can save up to 205.9 kB or 82% of the original size.

Network requests diagram

  • ef.cn
  • clientlibrarymanager.min.js
  • clientlibs.min.css
  • clientlibs.min.css
  • headlibs.min.js
  • headlibs.min.js
  • modernizr-2.6.2.min.js
  • us.en.min.css
  • jquery.min.js
  • utils.min.js
  • granite.min.js
  • jquery.min.js
  • shared.min.js
  • underscore.min.js
  • kernel.min.js
  • salesphonenumber.min.css
  • linkbutton.min.js
  • background-picturefill.min.js
  • additional.min.css
  • spacer.min.css
  • carousel.min.css
  • picturefill.min.js
  • 1454672736043.png
  • 1424694758011.png
  • sprite.png
  • main-bg.png
  • slider.min.css
  • slider.min.js
  • modal-form.min.css
  • youtubevideo.min.css
  • youtubevideo.min.js
  • modal.min.js
  • modal.min.css
  • modal.min.js
  • ActionPanel.min.js
  • trigger.min.js
  • clientlibs.min.js
  • clientlibs-embed-2013-amdmodule.min.js
  • 1447768530136.png
  • 1447758502996.png
  • 1447758497512.png
  • 1440528811057.png
  • Background-Footer-CTA-1170x558.jpg
  • 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
  • RobotoCondensed-Bold-webfont.woff
  • standalone.min.js
  • bundle.js

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Ef.cn, 39% (19 requests) were made to Et.ef-cdn.com and 35% (17 requests) were made to Et1.ef-cdn.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Ef.cn.

Additional info on ef.cn

Requests

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of EF. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

24

Javascripts

9

Images

11

CSS

1

AJAX

45

All

Possible request optimization

1

Javascripts

9

Images

1

CSS

1

AJAX

33

Optimized

12

All

Normal result

Redirects

As for redirects, our browser was forwarded to http://englishlive.ef.com/en-us/ before it reached this domain.

IP address

Ef.cn uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

ef.cn

center.ef.com.cn

dict.englishtown.cn

ef.com.cn

ef-cdn.com

118.89.205.220

DNS records

Type Host Target/ip TTL Other
A

ef.cn

118.89.205.220 600
NS

ef.cn

ns2.domainnetwork.se 86399
NS

ef.cn

ns.domainnetwork.se 86399
SOA

ef.cn

86400 Mname: ns.domainnetwork.se
Rname: hostmaster.cscdns.net
Serial: 2013112415
Refresh: 21600
Retry: 3600
Expire: 2419200
Minimum-ttl: 86400
TXT

ef.cn

600 Txt: 599788569-40174738

Language and encoding

Good result

Language

EN en language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ef.cn 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 Ef.cn 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.

HTTPS certificate

SSL Certificate

Ef.cn has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 99.2% of all visits is China. It’s good for Ef.cn that their server is also located in China, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Normal result

Social Sharing Optimization

Open Graph data is detected on the main page of EF. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

ef.cn

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