Tools & Wizards About Us
quartiersciences.over-blog.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

quartiersciences.over-blog.com

Le blog du Club Sciences - Expériences faciles à faire à la maison et sans danger !! Des bandes dessinées scientifiques, des films d'animation (stop m...

Page Load Speed

4.3 sec in total

First Response

931 ms

Resources Loaded

2.8 sec

Page Rendered

619 ms

quartiersciences.over-blog.com screenshot

About Website

Welcome to quartiersciences.over-blog.com homepage info - get ready to check Quartier Sciences Over Blog best content for France right away, or after learning these important things about quartiersciences.over-blog.com

Expériences faciles à faire à la maison et sans danger !! Des bandes dessinées scientifiques, des films d'animation (stop motion), des dessins animés, le tout c...

Visit quartiersciences.over-blog.com

Key Findings

We analyzed Quartiersciences.over-blog.com page load time and found that the first response time was 931 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

quartiersciences.over-blog.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value7,600 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value33.7 s

0/100

10%

Network Requests Diagram

quartiersciences.over-blog.com

931 ms

runtime.8cf00bcd.js

419 ms

ads.930ed0c8.js

430 ms

overblog-main.0301d00c.css

589 ms

common-kiwi.css

433 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Quartiersciences.over-blog.com, 19% (20 requests) were made to Fdata.over-blog.net and 16% (17 requests) were made to Assets.over-blog-kiwi.com. The less responsive or slowest element that took the longest time to load (952 ms) relates to the external source Img.over-blog.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 560.7 kB (31%)

Content Size

1.8 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Quartiersciences.over-blog.com main page is 1.8 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. Images take 789.6 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 209.2 kB

  • Original 239.2 kB
  • After minification 207.3 kB
  • After compression 30.0 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 32.0 kB, which is 13% 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 209.2 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 15.7 kB

  • Original 789.6 kB
  • After minification 773.8 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. Quartier Sciences Over Blog images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 287.5 kB

  • Original 637.0 kB
  • After minification 637.0 kB
  • After compression 349.5 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 287.5 kB or 45% of the original size.

CSS Optimization

-37%

Potential reduce by 48.3 kB

  • Original 129.5 kB
  • After minification 128.8 kB
  • After compression 81.2 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. Quartiersciences.over-blog.com needs all CSS files to be minified and compressed as it can save up to 48.3 kB or 37% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (55%)

Requests Now

99

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Quartier Sciences Over Blog. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

quartiersciences.over-blog.com

quartiersciences.over-blog.com

931 ms

runtime.8cf00bcd.js

runtime.8cf00bcd.js

419 ms

ads.930ed0c8.js

ads.930ed0c8.js

430 ms

overblog-main.0301d00c.css

overblog-main.0301d00c.css

589 ms

common-kiwi.css

common-kiwi.css

433 ms

jquery.fancybox.css

jquery.fancybox.css

434 ms

isConnected

isConnected

277 ms

overblog-main.db3f3297.js

overblog-main.db3f3297.js

751 ms

gs.js

gs.js

424 ms

sharebar.db8ff6e0.js

sharebar.db8ff6e0.js

433 ms

jquery.min.js

jquery.min.js

29 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

501 ms

player.js

player.js

36 ms

8.css

8.css

250 ms

8.css

8.css

324 ms

overblogkiwi

overblogkiwi

115 ms

overblog.js

overblog.js

57 ms

html-bg.gif

html-bg.gif

85 ms

ob-print.css

ob-print.css

98 ms

fdata%2F3252581%2Favatar-blog-1117368269-tmpphpecVaiG.jpeg

fdata%2F3252581%2Favatar-blog-1117368269-tmpphpecVaiG.jpeg

898 ms

lascience

lascience

35 ms

1_90x60.gif

1_90x60.gif

320 ms

pinit_fg_en_rect_red_20.png

pinit_fg_en_rect_red_20.png

30 ms

bidoui10.jpg

bidoui10.jpg

29 ms

Il-ne-faut-pas-casser-la-peau-001.jpg

Il-ne-faut-pas-casser-la-peau-001.jpg

418 ms

body-bg.jpg

body-bg.jpg

218 ms

bidoui11.jpg

bidoui11.jpg

37 ms

Il-ne-faut-pas-casser-la-peau-002.jpg

Il-ne-faut-pas-casser-la-peau-002.jpg

480 ms

c-est-pas-possible-001.jpg

c-est-pas-possible-001.jpg

414 ms

c-est-pas-possible-002.jpg

c-est-pas-possible-002.jpg

862 ms

_IMG0001.jpg

_IMG0001.jpg

599 ms

_IMG0002.jpg

_IMG0002.jpg

599 ms

le-pic-et-le-ballon-magique-001.jpg

le-pic-et-le-ballon-magique-001.jpg

598 ms

le-pic-et-le-ballon-magique-002.jpg

le-pic-et-le-ballon-magique-002.jpg

896 ms

la-brochette-dans-le-ballon001.jpg

la-brochette-dans-le-ballon001.jpg

862 ms

la-brochette-dans-le-ballon002.jpg

la-brochette-dans-le-ballon002.jpg

861 ms

l--histoire-de-bryan-et-lea-001.jpg

l--histoire-de-bryan-et-lea-001.jpg

861 ms

l--histoire-de-bryan-et-lea-002.jpg

l--histoire-de-bryan-et-lea-002.jpg

862 ms

Nina-et-Nila-font-une-experience-001.jpg

Nina-et-Nila-font-une-experience-001.jpg

918 ms

Nina-et-Nila-font-une-experience-002.jpg

Nina-et-Nila-font-une-experience-002.jpg

952 ms

_IMG0001.jpg

_IMG0001.jpg

897 ms

_IMG0002.jpg

_IMG0002.jpg

951 ms

shareicon-branding-ob--dark.png

shareicon-branding-ob--dark.png

82 ms

shareicon-facebook--dark.eab4b47e.png

shareicon-facebook--dark.eab4b47e.png

84 ms

shareicon-x--dark.a3683f55.svg

shareicon-x--dark.a3683f55.svg

82 ms

shareicon-pinterest--dark.0b67143a.png

shareicon-pinterest--dark.0b67143a.png

84 ms

shareicon-search.47cbba4f.png

shareicon-search.47cbba4f.png

84 ms

lock-alt-dark.svg

lock-alt-dark.svg

84 ms

shareicon-toggle--up.74008c9f.png

shareicon-toggle--up.74008c9f.png

215 ms

shareicon_email.png

shareicon_email.png

312 ms

printer.png

printer.png

215 ms

media.html

media.html

178 ms

bg-content_8.gif

bg-content_8.gif

88 ms

cl_1_0_8.gif

cl_1_0_8.gif

87 ms

box1-bg-top.gif

box1-bg-top.gif

206 ms

box0-bg-bottom.gif

box0-bg-bottom.gif

205 ms

bg-field.gif

bg-field.gif

306 ms

bg-button.gif

bg-button.gif

307 ms

cl_1_1_8.gif

cl_1_1_8.gif

337 ms

bg-articles8.gif

bg-articles8.gif

308 ms

bidoui10.jpg

bidoui10.jpg

835 ms

sdk.js

sdk.js

19 ms

widgets.js

widgets.js

107 ms

pinit.js

pinit.js

18 ms

bidoui11.jpg

bidoui11.jpg

721 ms

sdk.js

sdk.js

6 ms

62 ms

pinit_main.js

pinit_main.js

12 ms

count.json

count.json

97 ms

count.json

count.json

133 ms

count.json

count.json

132 ms

count.json

count.json

132 ms

count.json

count.json

132 ms

count.json

count.json

131 ms

count.json

count.json

131 ms

bg-articles8-foot.gif

bg-articles8-foot.gif

202 ms

cl_1_2_8.gif

cl_1_2_8.gif

201 ms

box1-bg2-top.gif

box1-bg2-top.gif

268 ms

box0-bg2-bottom.gif

box0-bg2-bottom.gif

268 ms

footerlogo.jpg

footerlogo.jpg

269 ms

footerbg_8.jpg

footerbg_8.jpg

269 ms

fr.png

fr.png

255 ms

iframe_api

iframe_api

117 ms

gtm.js

gtm.js

121 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

57 ms

settings

settings

100 ms

www-widgetapi.js

www-widgetapi.js

11 ms

icon_wink.gif

icon_wink.gif

579 ms

4YgtJZGDbj4

4YgtJZGDbj4

203 ms

button.856debeac157d9669cf51e73a08fbc93.js

button.856debeac157d9669cf51e73a08fbc93.js

18 ms

embeds

embeds

58 ms

embeds

embeds

61 ms

embeds

embeds

69 ms

tweet_button.2f70fb173b9000da126c79afe2098f02.en.html

tweet_button.2f70fb173b9000da126c79afe2098f02.en.html

53 ms

www-player.css

www-player.css

14 ms

www-embed-player.js

www-embed-player.js

31 ms

base.js

base.js

57 ms

ad_status.js

ad_status.js

146 ms

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

141 ms

embed.js

embed.js

40 ms

AIdro_macyMldjCe_ItGamc57EgrOpGJdYCmmmo2YGUPchY=s68-c-k-c0x00ffffff-no-rj

AIdro_macyMldjCe_ItGamc57EgrOpGJdYCmmmo2YGUPchY=s68-c-k-c0x00ffffff-no-rj

190 ms

id

id

53 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

148 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

149 ms

Create

Create

99 ms

Accessibility Review

quartiersciences.over-blog.com accessibility score

79

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-*] attributes are not valid or misspelled

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

Buttons do not have an accessible name

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

quartiersciences.over-blog.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

quartiersciences.over-blog.com SEO score

92

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 Quartiersciences.over-blog.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 Quartiersciences.over-blog.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

quartiersciences.over-blog.com

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