Tools & Wizards About Us
sanofi.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

sanofi.com

A Leading Immunology Healthcare Company | Sanofi

Page Load Speed

7.3 sec in total

First Response

174 ms

Resources Loaded

2.1 sec

Page Rendered

5 sec

sanofi.com screenshot

About Website

Welcome to sanofi.com homepage info - get ready to check Sanofi best content for United States right away, or after learning these important things about sanofi.com

Sanofi pushes scientific boundaries to develop breakthrough medicines and vaccines. We chase the miracles of science to improve people’s lives.

Visit sanofi.com

Key Findings

We analyzed Sanofi.com page load time and found that the first response time was 174 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sanofi.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value4.5 s

72/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

sanofi.com

174 ms

www.sanofi.com

76 ms

common~2022-08-23-17-47-52-000~cache.css

14 ms

otSDKStub.js

184 ms

b23be989-38d4-47d4-b505-521478b70c5e.js

550 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 24% of them (10 requests) were addressed to the original Sanofi.com, 44% (18 requests) were made to Cdn.sociabble.com and 7% (3 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (550 ms) relates to the external source App.bowencraggs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 217.4 kB (61%)

Content Size

357.2 kB

After Optimization

139.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sanofi.com main page is 357.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 239.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 213.3 kB

  • Original 239.9 kB
  • After minification 215.4 kB
  • After compression 26.6 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 213.3 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 1.4 kB

  • Original 99.2 kB
  • After minification 97.7 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. Sanofi images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 669 B

  • Original 9.1 kB
  • After minification 9.1 kB
  • After compression 8.4 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

-22%

Potential reduce by 2.0 kB

  • Original 9.1 kB
  • After minification 9.1 kB
  • After compression 7.1 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. Sanofi.com needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (50%)

Requests Now

32

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sanofi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sanofi.com

sanofi.com

174 ms

www.sanofi.com

www.sanofi.com

76 ms

common~2022-08-23-17-47-52-000~cache.css

common~2022-08-23-17-47-52-000~cache.css

14 ms

otSDKStub.js

otSDKStub.js

184 ms

b23be989-38d4-47d4-b505-521478b70c5e.js

b23be989-38d4-47d4-b505-521478b70c5e.js

550 ms

iframeResizer.min.js

iframeResizer.min.js

301 ms

common~2022-08-23-17-47-52-000~cache.js

common~2022-08-23-17-47-52-000~cache.js

115 ms

DefaultPage~2022-08-23-17-47-52-000~cache.js

DefaultPage~2022-08-23-17-47-52-000~cache.js

124 ms

common~2022-08-23-17-47-52-000~cache.css

common~2022-08-23-17-47-52-000~cache.css

52 ms

0f13e8d0-80cd-46b2-9c59-829e7bd2bd47.json

0f13e8d0-80cd-46b2-9c59-829e7bd2bd47.json

78 ms

gtm.js

gtm.js

206 ms

otBannerSdk.js

otBannerSdk.js

125 ms

logo-header-color-large.png

logo-header-color-large.png

89 ms

Planet%20mob_clean%20up_waterford%20220528-32%3FE.Fohlen-Bambasi%20Prod.jpg

Planet%20mob_clean%20up_waterford%20220528-32%3FE.Fohlen-Bambasi%20Prod.jpg

53 ms

global.svg

global.svg

46 ms

sanofi-logo-footer.png

sanofi-logo-footer.png

43 ms

wall.js

wall.js

39 ms

8e51d15f-8d21-4d1b-86ef-c093dd4dca23

8e51d15f-8d21-4d1b-86ef-c093dd4dca23

67 ms

socialWall.css

socialWall.css

13 ms

sanofi_2_skin.css

sanofi_2_skin.css

18 ms

jquery

jquery

67 ms

libiframerezise

libiframerezise

80 ms

publicchannelsjslibs

publicchannelsjslibs

79 ms

publicchannelsjs

publicchannelsjs

97 ms

css

css

88 ms

preloader-line.gif

preloader-line.gif

89 ms

o-0IIpQlx3QUlC5A4PNr5TRF.ttf

o-0IIpQlx3QUlC5A4PNr5TRF.ttf

233 ms

widgets.js

widgets.js

228 ms

8e51d15f-8d21-4d1b-86ef-c093dd4dca23

8e51d15f-8d21-4d1b-86ef-c093dd4dca23

18 ms

wkaIHRDxNOtL14kC.jpg

wkaIHRDxNOtL14kC.jpg

478 ms

HnfuG7RtMAB78E96.jpg

HnfuG7RtMAB78E96.jpg

322 ms

picture

picture

262 ms

picto_mini_twitter.png

picto_mini_twitter.png

264 ms

play-ig.png

play-ig.png

261 ms

iconfont.ttf

iconfont.ttf

301 ms

SourceSansPro-SemiBold.woff

SourceSansPro-SemiBold.woff

449 ms

SourceSansPro-Regular.woff

SourceSansPro-Regular.woff

521 ms

widget_iframe.c4bdc17e77719578b594d5555bee90db.html

widget_iframe.c4bdc17e77719578b594d5555bee90db.html

177 ms

settings

settings

144 ms

Small

Small

70 ms

bo0NCIlFUX97MaiuL9ka7E1s4oM6Blm2uIIEXF19HUAZqrhClIt5nqPMldK9onNY.jpg

bo0NCIlFUX97MaiuL9ka7E1s4oM6Blm2uIIEXF19HUAZqrhClIt5nqPMldK9onNY.jpg

363 ms

Accessibility Review

sanofi.com accessibility score

88

Accessibility Issues

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

High

<frame> or <iframe> elements do not have a title

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

sanofi.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sanofi.com SEO score

90

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

sanofi.com

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