Tools & Wizards About Us
tefllondon.com screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

tefllondon.com

【TEFL中国总部官网】TEFL证书考试报名官方网站!TEFL国际英语教师资格证官网!TEFL in China.

Page Load Speed

11.5 sec in total

First Response

1.7 sec

Resources Loaded

8.6 sec

Page Rendered

1.2 sec

tefllondon.com screenshot

About Website

Welcome to tefllondon.com homepage info - get ready to check TEFL London best content right away, or after learning these important things about tefllondon.com

【TEFL中国总部官网】TEFL中国区唯一总部机构和首席代表官网。TEFL in China 提供中国地区学员考试报名认证服务以及推荐就业。TEFL/TESOL国际英语教师资格证书成就国际英语教师梦想。TEFL证书国际认可,全球通用。Get tefl/tesol certification and teach english Globally.

Visit tefllondon.com

Key Findings

We analyzed Tefllondon.com page load time and found that the first response time was 1.7 sec and then it took 9.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

tefllondon.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value29.3 s

0/100

25%

SI (Speed Index)

Value22.6 s

0/100

10%

TBT (Total Blocking Time)

Value1,780 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.17

70/100

15%

TTI (Time to Interactive)

Value36.4 s

0/100

10%

Network Requests Diagram

tefllondon.com

1687 ms

outerChain.jsp

1246 ms

siteBase2.min.css

419 ms

base2.min.css

502 ms

module.min.css

482 ms

Our browser made a total of 154 requests to load all elements on the main page. We found that 8% of them (13 requests) were addressed to the original Tefllondon.com, 16% (24 requests) were made to 2.ss.faisys.com and 13% (20 requests) were made to 13329166.s21i.faiusr.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Aff-im.cdn.bcebos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 909.1 kB (9%)

Content Size

10.1 MB

After Optimization

9.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tefllondon.com main page is 10.1 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 8.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 380.4 kB

  • Original 451.3 kB
  • After minification 447.6 kB
  • After compression 70.9 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 380.4 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 522.2 kB

  • Original 8.4 MB
  • After minification 7.9 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. TEFL London images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 6.4 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 1.1 MB

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

-0%

Potential reduce by 169 B

  • Original 146.4 kB
  • After minification 146.4 kB
  • After compression 146.2 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. Tefllondon.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 61 (41%)

Requests Now

148

After Optimization

87

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 148 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TEFL London. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tefllondon.com

tefllondon.com

1687 ms

outerChain.jsp

outerChain.jsp

1246 ms

siteBase2.min.css

siteBase2.min.css

419 ms

base2.min.css

base2.min.css

502 ms

module.min.css

module.min.css

482 ms

fkTheme.min.css

fkTheme.min.css

787 ms

themeMixin.min.css

themeMixin.min.css

483 ms

moduleAnimation.min.css

moduleAnimation.min.css

483 ms

fkNav.min.css

fkNav.min.css

822 ms

fkModule.min.css

fkModule.min.css

828 ms

newSearchBoxStyle.min.css

newSearchBoxStyle.min.css

483 ms

floatBtn1.min.css

floatBtn1.min.css

484 ms

jzcusstyle.jsp

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1390 ms

vue-2.7.14.min.js

vue-2.7.14.min.js

775 ms

comMethods.min.js

comMethods.min.js

807 ms

jzUtils.min.js

jzUtils.min.js

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polyfill.min.js

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jzRequest.min.js

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jzUtils.min.js

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bizShared.min.js

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jquery-core.min.js

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jquery-mousewheel.min.js

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838 ms

frontend.min.js

frontend.min.js

840 ms

jquery-ui-core.min.js

jquery-ui-core.min.js

867 ms

partitionSite.min.js

partitionSite.min.js

977 ms

2052.min.js

2052.min.js

393 ms

site.min.js

site.min.js

906 ms

module.min.js

module.min.js

902 ms

city2.min.js

city2.min.js

878 ms

fontsIco.min.css

fontsIco.min.css

297 ms

hawkEye.min.js

hawkEye.min.js

576 ms

national.png

national.png

74 ms

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813 ms

dot.gif

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803 ms

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807 ms

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961 ms

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752 ms

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754 ms

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ABUIABACGAAgpYGQ9gUooMmHcDCQAziAAg.jpg

752 ms

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ABUIABACGAAgz_Pk9QUo2PGXlgcwpgQ47gI.jpg

753 ms

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ABUIABACGAAg6_Pk9QUo2sT8jAMw4BI4wAw.jpg

788 ms

ABUIABAEGAAglt7u9QUo2K6LnwcwgA843As.png

ABUIABAEGAAglt7u9QUo2K6LnwcwgA843As.png

755 ms

ABUIABACGAAg_qzfkgYo-OWo6QcwxAQ4hQI!400x400.jpg

ABUIABACGAAg_qzfkgYo-OWo6QcwxAQ4hQI!400x400.jpg

753 ms

ABUIABACGAAgkq-fkgYokL-o5AEwxAQ4hQI!400x400.jpg

ABUIABACGAAgkq-fkgYokL-o5AEwxAQ4hQI!400x400.jpg

753 ms

ABUIABACGAAg9bDfkgYo9sStpgUwxAQ4hQI!400x400.jpg

ABUIABACGAAg9bDfkgYo9sStpgUwxAQ4hQI!400x400.jpg

754 ms

ABUIABACGAAg8LHfkgYo9pHWoAQwxAQ4hQI!400x400.jpg

ABUIABACGAAg8LHfkgYo9pHWoAQwxAQ4hQI!400x400.jpg

754 ms

floatimgnot.jpg

floatimgnot.jpg

734 ms

locater_Arrow3.png

locater_Arrow3.png

75 ms

mbg01.png

mbg01.png

650 ms

sound_0_on.gif

sound_0_on.gif

76 ms

vbg01.png

vbg01.png

133 ms

AD0Iw_D2BRACGAAgvLSNwwUosJ3ONDCADzjwBQ.jpg

AD0Iw_D2BRACGAAgvLSNwwUosJ3ONDCADzjwBQ.jpg

739 ms

AD0Iw_D2BRACGAAgq8WNwwUojt3KhwQwgA84rAc.jpg

AD0Iw_D2BRACGAAgq8WNwwUojt3KhwQwgA84rAc.jpg

754 ms

hm.js

hm.js

1093 ms

video-js.min.css

video-js.min.css

66 ms

video.min.css

video.min.css

64 ms

datepicker.min.css

datepicker.min.css

63 ms

icomoon.ttf

icomoon.ttf

598 ms

icomoon.ttf

icomoon.ttf

601 ms

icomoon.ttf

icomoon.ttf

599 ms

icomoon.ttf

icomoon.ttf

615 ms

video.min.js

video.min.js

575 ms

photoSlide.min.js

photoSlide.min.js

497 ms

imageEffect.min.js

imageEffect.min.js

497 ms

ajaxLoadModuleDom_h.jsp

ajaxLoadModuleDom_h.jsp

1006 ms

mail_h.jsp

mail_h.jsp

480 ms

site_h.jsp

site_h.jsp

470 ms

api

api

774 ms

site_h.jsp

site_h.jsp

923 ms

log_h.jsp

log_h.jsp

974 ms

login_h.jsp

login_h.jsp

338 ms

bannerAnimation.min.css

bannerAnimation.min.css

125 ms

ABUIABAEGAAgtb_M_AUohvOJNzCADziKBQ.png

ABUIABAEGAAgtb_M_AUohvOJNzCADziKBQ.png

842 ms

ABUIABAEGAAgqcnu9QUogKWH8wEwgA84igU.png

ABUIABAEGAAgqcnu9QUogKWH8wEwgA84igU.png

313 ms

mbg01.png

mbg01.png

138 ms

left.png

left.png

136 ms

right.png

right.png

134 ms

hm.gif

hm.gif

305 ms

b.js

b.js

1459 ms

getscript

getscript

673 ms

AD0Iw_D2BRACGAAgv5uOwwUoyOSh3wEw6gc4AQ.jpg

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35 ms

ABUIABAEGAAgy_eT_QUoxuyq2wYwsAk4sAk!500x500.png

ABUIABAEGAAgy_eT_QUoxuyq2wYwsAk4sAk!500x500.png

35 ms

ABUIABACGAAgjt3kkgYolJX_7AUw0A84tQo!400x400.jpg

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73 ms

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ABUIABAEGAAg2OCt9gUowIXc8gcwkAM4iQI!160x160.png

53 ms

ABUIABAEGAAguJOF9QUoiLLPkQYwsAk4sAk!60x60.png

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34 ms

ABUIABACGAAgjqP1ggYo3q27IDC1Bji1Bg!160x160.jpg

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33 ms

mgClue_h.jsp

mgClue_h.jsp

740 ms

openhand.cur

openhand.cur

232 ms

close.png

close.png

53 ms

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api.map.baidu.com

api.map.baidu.com

459 ms

abclite-2063-s.js

abclite-2063-s.js

1531 ms

getmodules

getmodules

908 ms

blank.gif

blank.gif

452 ms

mgClue_h.jsp

mgClue_h.jsp

265 ms

mgClue_h.jsp

mgClue_h.jsp

248 ms

affim.js

affim.js

2250 ms

copyright_logo.png

copyright_logo.png

346 ms

multi_only.png

multi_only.png

100 ms

blank.gif

blank.gif

241 ms

close.png

close.png

236 ms

indoor_exit.png

indoor_exit.png

249 ms

mapctrls1d3.gif

mapctrls1d3.gif

450 ms

mapctrls2d0.png

mapctrls2d0.png

453 ms

api.map.baidu.com

api.map.baidu.com

441 ms

getmodules

getmodules

471 ms

api.map.baidu.com

api.map.baidu.com

469 ms

blank.gif

blank.gif

405 ms

api.map.baidu.com

api.map.baidu.com

300 ms

abclite-2063-s.original.js

abclite-2063-s.original.js

217 ms

api.map.baidu.com

api.map.baidu.com

243 ms

setCookie_h.jsp

setCookie_h.jsp

253 ms

siteDomain_h.jsp

siteDomain_h.jsp

546 ms

push.js

push.js

527 ms

svg.min.js

svg.min.js

33 ms

api.map.baidu.com

api.map.baidu.com

236 ms

Accessibility Review

tefllondon.com accessibility score

71

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.

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

tefllondon.com best practices score

75

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

tefllondon.com SEO score

54

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tefllondon.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Tefllondon.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

tefllondon.com

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