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ef.edu screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

ef.edu

EF Education First | Educational Tours & Language Programs Abroad

Page Load Speed

3.1 sec in total

First Response

665 ms

Resources Loaded

2.1 sec

Page Rendered

289 ms

ef.edu screenshot

About Website

Visit ef.edu now to see the best up-to-date EF content for United States and also check out these interesting facts you probably never knew about ef.edu

EF, world leader in international education since 1965. Offering educational tours, immersion language learning, cultural exchange and academic programs around the world. Whether you study abroad, lea...

Visit ef.edu

Key Findings

We analyzed Ef.edu page load time and found that the first response time was 665 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.

Performance Metrics

ef.edu performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value4,130 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value19.2 s

2/100

10%

Network Requests Diagram

www.ef.edu

665 ms

fonts.css

388 ms

central-header.min.css

388 ms

centralefcom-global-footer-naked.min.css

395 ms

main-v2.css

403 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 6% of them (3 requests) were addressed to the original Ef.edu, 33% (17 requests) were made to Media.ef.com and 18% (9 requests) were made to Media2.ef.com. The less responsive or slowest element that took the longest time to load (665 ms) belongs to the original domain Ef.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 914.2 kB (54%)

Content Size

1.7 MB

After Optimization

765.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ef.edu main page is 1.7 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 797.2 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 125.1 kB

  • Original 139.0 kB
  • After minification 81.6 kB
  • After compression 13.9 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. This page needs HTML code to be minified as it can gain 57.4 kB, which is 41% 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 125.1 kB or 90% of the original size.

Image Optimization

-4%

Potential reduce by 16.6 kB

  • Original 444.8 kB
  • After minification 428.2 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. EF images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 540.5 kB

  • Original 797.2 kB
  • After minification 773.6 kB
  • After compression 256.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 540.5 kB or 68% of the original size.

CSS Optimization

-78%

Potential reduce by 232.1 kB

  • Original 298.5 kB
  • After minification 296.9 kB
  • After compression 66.3 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. Ef.edu needs all CSS files to be minified and compressed as it can save up to 232.1 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (62%)

Requests Now

47

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 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 21 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.ef.edu

www.ef.edu

665 ms

fonts.css

fonts.css

388 ms

central-header.min.css

central-header.min.css

388 ms

centralefcom-global-footer-naked.min.css

centralefcom-global-footer-naked.min.css

395 ms

main-v2.css

main-v2.css

403 ms

modernizr.min.js

modernizr.min.js

38 ms

VisitorAPI.js

VisitorAPI.js

35 ms

efcomcentral-universal.min.js

efcomcentral-universal.min.js

24 ms

adobe-tnt-mbox.js

adobe-tnt-mbox.js

27 ms

jquery.min.js

jquery.min.js

50 ms

js

js

98 ms

central-header.min.js

central-header.min.js

18 ms

funnelingv2.min.js

funnelingv2.min.js

379 ms

FormAPI3.min.js

FormAPI3.min.js

518 ms

centralefcom-global-footer-naked.min.js

centralefcom-global-footer-naked.min.js

370 ms

id

id

124 ms

00.png

00.png

127 ms

00.svg

00.svg

123 ms

minerva

minerva

140 ms

persona.axd

persona.axd

260 ms

GetOffices

GetOffices

22 ms

gtm.js

gtm.js

41 ms

00.png

00.png

25 ms

id

id

22 ms

satelliteLib-df8be426665be3b041d899e37a242266d6528dd7.js

satelliteLib-df8be426665be3b041d899e37a242266d6528dd7.js

120 ms

conversion_async.js

conversion_async.js

75 ms

9110ydo52557.js

9110ydo52557.js

73 ms

analytics.js

analytics.js

65 ms

fbds.js

fbds.js

61 ms

insight.min.js

insight.min.js

33 ms

activityi;src=4798542;type=pagevist;cat=visits;u1=US;u3=Other;ord=1;num=1114074452780.187

activityi;src=4798542;type=pagevist;cat=visits;u1=US;u3=Other;ord=1;num=1114074452780.187

128 ms

s-code-contents-a7141905be2b2055637b03de24367fdde7046e96.js

s-code-contents-a7141905be2b2055637b03de24367fdde7046e96.js

38 ms

tp

tp

69 ms

127 ms

89 ms

collect

collect

50 ms

collect

collect

84 ms

s52717412861529

s52717412861529

27 ms

40 ms

24 ms

centralheader-sprite.png

centralheader-sprite.png

8 ms

US.jpg

US.jpg

35 ms

US.jpg

US.jpg

34 ms

US.jpg

US.jpg

29 ms

US.jpg

US.jpg

29 ms

funneling-sprite.png

funneling-sprite.png

31 ms

sprite.png

sprite.png

31 ms

US.jpg

US.jpg

32 ms

17 ms

fontello.woff

fontello.woff

4 ms

EF-icons.woff

EF-icons.woff

11 ms

Accessibility Review

ef.edu accessibility score

94

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-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

Best Practices

ef.edu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ef.edu SEO score

86

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Encoding

    UTF-8

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

ef.edu

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: