Tools & Wizards About Us
blog.openclassrooms.com screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

blog.openclassrooms.com

WorkBetter par OpenClassrooms : le blog pour s'épanouir au travail

Page Load Speed

1.9 sec in total

First Response

74 ms

Resources Loaded

1.4 sec

Page Rendered

421 ms

blog.openclassrooms.com screenshot

About Website

Visit blog.openclassrooms.com now to see the best up-to-date Blog Open Classrooms content for France and also check out these interesting facts you probably never knew about blog.openclassrooms.com

Chez OpenClassrooms, nous pensons que chacun peut être épanoui au travail. Formation, management, outils... Voici un blog pour vous aider à y parvenir.

Visit blog.openclassrooms.com

Key Findings

We analyzed Blog.openclassrooms.com page load time and found that the first response time was 74 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

blog.openclassrooms.com performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.821

4/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

blog.openclassrooms.com

74 ms

blog.openclassrooms.com

242 ms

style.min.css

44 ms

styles.css

34 ms

dashicons.min.css

60 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 89% of them (78 requests) were addressed to the original Blog.openclassrooms.com, 5% (4 requests) were made to Fonts.googleapis.com and 2% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (736 ms) belongs to the original domain Blog.openclassrooms.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.7 kB (4%)

Content Size

3.2 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blog.openclassrooms.com main page is 3.2 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 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 73.7 kB

  • Original 90.9 kB
  • After minification 90.8 kB
  • After compression 17.2 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 73.7 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 30.4 kB

  • Original 2.8 MB
  • After minification 2.8 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. Blog Open Classrooms images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 2.5 kB

  • Original 134.1 kB
  • After minification 133.4 kB
  • After compression 131.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 6.1 kB

  • Original 146.7 kB
  • After minification 146.3 kB
  • After compression 140.6 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. Blog.openclassrooms.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 42 (70%)

Requests Now

60

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blog Open Classrooms. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blog.openclassrooms.com

blog.openclassrooms.com

74 ms

blog.openclassrooms.com

blog.openclassrooms.com

242 ms

style.min.css

style.min.css

44 ms

styles.css

styles.css

34 ms

dashicons.min.css

dashicons.min.css

60 ms

frontend.min.css

frontend.min.css

31 ms

base.css

base.css

52 ms

twentyfifteen.css

twentyfifteen.css

49 ms

font-awesome.min.css

font-awesome.min.css

32 ms

fontawesome.css

fontawesome.css

61 ms

bootstrap-custom.css

bootstrap-custom.css

53 ms

theme.css

theme.css

71 ms

owl.carousel.min.css

owl.carousel.min.css

81 ms

css

css

47 ms

genericons.css

genericons.css

69 ms

jquery.min.js

jquery.min.js

87 ms

jquery-migrate.min.js

jquery-migrate.min.js

87 ms

wp-hide-post-public.js

wp-hide-post-public.js

86 ms

jspullquotes-core.css

jspullquotes-core.css

100 ms

Plain.css

Plain.css

99 ms

jspullquotes.js

jspullquotes.js

101 ms

panopress.js

panopress.js

98 ms

panopress.css

panopress.css

100 ms

mailpoet-public.438bfe36.css

mailpoet-public.438bfe36.css

79 ms

css

css

43 ms

css

css

42 ms

css

css

43 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

109 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

111 ms

wp-polyfill.min.js

wp-polyfill.min.js

112 ms

hooks.min.js

hooks.min.js

114 ms

i18n.min.js

i18n.min.js

149 ms

index.js

index.js

115 ms

index.js

index.js

115 ms

iframe-buster.js

iframe-buster.js

115 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

118 ms

popper.min.js

popper.min.js

40 ms

bootstrap.min.js

bootstrap.min.js

24 ms

script.js

script.js

118 ms

verifyform.js

verifyform.js

117 ms

owl.carousel.min.js

owl.carousel.min.js

117 ms

theia-sticky-sidebar.min.js

theia-sticky-sidebar.min.js

117 ms

public.js

public.js

136 ms

front.css

front.css

133 ms

vcd15cbe7772f49c399c6a5babf22c1241717689176015

vcd15cbe7772f49c399c6a5babf22c1241717689176015

109 ms

fSelect.css

fSelect.css

135 ms

front.min.js

front.min.js

131 ms

fSelect.js

fSelect.js

127 ms

analytics.min.js

analytics.min.js

336 ms

36 ms

logo_letter_v2.png

logo_letter_v2.png

39 ms

header_title_v2.png

header_title_v2.png

159 ms

1024x512_blogheader_tableau-1.png

1024x512_blogheader_tableau-1.png

161 ms

Blog_header_SCA.png

Blog_header_SCA.png

501 ms

blog-expertdevops.jpg

blog-expertdevops.jpg

159 ms

Blog-header-1024x512-2.png

Blog-header-1024x512-2.png

161 ms

Blog_header_UX_designer.png

Blog_header_UX_designer.png

164 ms

Blog_header_DI-1.png

Blog_header_DI-1.png

166 ms

Blog_header_metiers_futur.png

Blog_header_metiers_futur.png

164 ms

Blog_header_personas_teletravailleur.png

Blog_header_personas_teletravailleur.png

166 ms

Blog_header_upskilling_B2C.png

Blog_header_upskilling_B2C.png

165 ms

Blog_header_transfo_numerique.png

Blog_header_transfo_numerique.png

168 ms

Blog_header_outils_full_remote.png

Blog_header_outils_full_remote.png

167 ms

Blog_header_remote_B2C.png

Blog_header_remote_B2C.png

168 ms

1024-%C3%97-512_blog-header-2.png

1024-%C3%97-512_blog-header-2.png

168 ms

Frame-2-2.png

Frame-2-2.png

169 ms

Montserrat-Regular.woff

Montserrat-Regular.woff

495 ms

Montserrat-Medium.woff

Montserrat-Medium.woff

165 ms

Montserrat-Light.woff

Montserrat-Light.woff

164 ms

Montserrat-ExtraLight.woff

Montserrat-ExtraLight.woff

481 ms

Montserrat-Thin.woff

Montserrat-Thin.woff

527 ms

Montserrat-SemiBold.woff

Montserrat-SemiBold.woff

164 ms

Montserrat-Bold.woff

Montserrat-Bold.woff

558 ms

Montserrat-ExtraBold.woff

Montserrat-ExtraBold.woff

164 ms

Montserrat-Black.woff

Montserrat-Black.woff

492 ms

fa-solid-900.woff

fa-solid-900.woff

299 ms

fa-regular-400.woff

fa-regular-400.woff

680 ms

fa-light-300.woff

fa-light-300.woff

680 ms

fa-brands-400.woff

fa-brands-400.woff

299 ms

Montserrat-Italic.woff

Montserrat-Italic.woff

300 ms

Montserrat-MediumItalic.woff

Montserrat-MediumItalic.woff

299 ms

Montserrat-LightItalic.woff

Montserrat-LightItalic.woff

333 ms

Montserrat-ExtraLightItalic.woff

Montserrat-ExtraLightItalic.woff

646 ms

Montserrat-ThinItalic.woff

Montserrat-ThinItalic.woff

729 ms

Montserrat-SemiBoldItalic.woff

Montserrat-SemiBoldItalic.woff

364 ms

Montserrat-BoldItalic.woff

Montserrat-BoldItalic.woff

333 ms

Montserrat-ExtraBoldItalic.woff

Montserrat-ExtraBoldItalic.woff

364 ms

Montserrat-BlackItalic.woff

Montserrat-BlackItalic.woff

736 ms

Accessibility Review

blog.openclassrooms.com accessibility score

97

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.

Best Practices

blog.openclassrooms.com 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

blog.openclassrooms.com SEO score

93

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

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blog.openclassrooms.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Blog.openclassrooms.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

blog.openclassrooms.com

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