2.5 sec in total
86 ms
1.9 sec
550 ms
Click here to check amazing TEFL Online content for China. Otherwise, check out these important facts you probably never knew about teflonline.com
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Visit teflonline.comWe analyzed Teflonline.com page load time and found that the first response time was 86 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
teflonline.com performance score
name
value
score
weighting
Value2.6 s
63/100
10%
Value5.8 s
15/100
25%
Value5.2 s
60/100
10%
Value1,660 ms
11/100
30%
Value0
100/100
15%
Value13.9 s
10/100
10%
86 ms
199 ms
25 ms
85 ms
79 ms
Our browser made a total of 89 requests to load all elements on the main page. We found that 73% of them (65 requests) were addressed to the original Teflonline.com, 4% (4 requests) were made to Maxcdn.bootstrapcdn.com and 4% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Teflonline.com.
Page size can be reduced by 709.7 kB (23%)
3.0 MB
2.3 MB
In fact, the total size of Teflonline.com main page is 3.0 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. 50% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 85.3 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 19.4 kB, which is 19% 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 85.3 kB or 84% of the original size.
Potential reduce by 44.4 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. TEFL Online images are well optimized though.
Potential reduce by 247.5 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 247.5 kB or 65% of the original size.
Potential reduce by 332.5 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. Teflonline.com needs all CSS files to be minified and compressed as it can save up to 332.5 kB or 83% of the original size.
Number of requests can be reduced by 27 (33%)
81
54
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TEFL Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
teflonline.com
86 ms
www.teflonline.com
199 ms
bootstrap.min.css
25 ms
custom.css
85 ms
slick.css
79 ms
font-awesome.min.css
16 ms
modernizr-latest.js
34 ms
style.css
99 ms
modernizr-latest.js
59 ms
jquery-latest.min.js
7 ms
flip.js
83 ms
bootstrap.min.js
7 ms
request.js
173 ms
jquery-loader.js
81 ms
slick.min.js
179 ms
slick.teflonline.js
177 ms
animatescroll.js
176 ms
jquery.matchHeight.js
250 ms
teflonline_blue.png
290 ms
tollfree_can.png
271 ms
tollfree_usa.png
270 ms
tollfree_uk.png
270 ms
badge_promo_02.png
289 ms
v04_certification.png
315 ms
v04_student.png
363 ms
v04_teacher.png
314 ms
v04_jobs.png
313 ms
courses_40.png
363 ms
courses_60.png
393 ms
courses_100.png
396 ms
courses_120.png
532 ms
courses_idelt.png
529 ms
icon_compare.png
531 ms
teach-english-in-colombia.jpg
632 ms
teach-english-in-thailand.jpg
649 ms
teach-english-in-brazil.jpg
656 ms
teach-english-in-argentina.jpg
649 ms
teach-english-in-chile.jpg
687 ms
teach-english-in-china.jpg
718 ms
teach-english-in-vietnam.jpg
817 ms
whyus_accreditation.png
723 ms
whyus_offerings.png
725 ms
whyus_details.png
728 ms
whyus_affordability.png
763 ms
whyus_features.png
791 ms
logotable.jpg
798 ms
staff_kimberly-bird.jpg
992 ms
GRpVgpd6zyw
233 ms
staff_alex-hart.jpg
872 ms
analytics.js
78 ms
staff_gabriela-torregiani.jpg
966 ms
fontawesome-webfont.woff
75 ms
staff_erin-melton.jpg
935 ms
staff_amy-pascucci.jpg
982 ms
staff_carsen-ott.jpg
919 ms
ga.js
64 ms
slick.woff
870 ms
b31d56aa-115f-4e76-b318-00cb57a83392.js
305 ms
accet_accreditation.png
874 ms
national_ccrs.png
912 ms
cambridge_english.png
924 ms
www-embed-player-vflZsBgOl.css
65 ms
www-embed-player.js
94 ms
base.js
153 ms
englishusa.png
931 ms
collect
26 ms
iso9001_bureauveritas.png
929 ms
__utm.gif
11 ms
icon_newsletter.png
902 ms
social_facebook.png
904 ms
social_youtube.png
942 ms
social_twitter.png
955 ms
collect
81 ms
social_google.png
916 ms
bridge_tefl.png
934 ms
bg-transp_blue.png
894 ms
hero-macbook.jpg
1111 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
70 ms
ad_status.js
72 ms
bg-transp_white.png
800 ms
bg_hour_tab.png
811 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
108 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
119 ms
save-badge-bcelt.jpg
819 ms
btn-chat.png
124 ms
blank.gif
40 ms
badge-highest.png
731 ms
ajax-loader.gif
746 ms
pd.js
6 ms
teflonline.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
teflonline.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
teflonline.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Document doesn't use legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teflonline.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 Teflonline.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.
teflonline.com
Open Graph description is not detected on the main page of TEFL Online. 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: