Tools & Wizards About Us
jeromewenger.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jeromewenger.com

Jerome Wenger NanoBioPhotonics - NanoBioPhotonics research at Fresnel Institute Marseille: nanophotonics, biophotonics, plasmonics, single molecule, s...

Page Load Speed

4.5 sec in total

First Response

290 ms

Resources Loaded

3.6 sec

Page Rendered

609 ms

jeromewenger.com screenshot

About Website

Click here to check amazing Jerome Wenger content. Otherwise, check out these important facts you probably never knew about jeromewenger.com

NanoBioPhotonics research at Fresnel Institute Marseille: nanophotonics, biophotonics, plasmonics, single molecule, spectroscopy, optical microscopy.

Visit jeromewenger.com

Key Findings

We analyzed Jeromewenger.com page load time and found that the first response time was 290 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jeromewenger.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value1,190 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.2 s

41/100

10%

Network Requests Diagram

jeromewenger.com

290 ms

www.jeromewenger.com

326 ms

runtime.d5be4c8d.js

454 ms

ads.930ed0c8.js

457 ms

main.90f9cf75.css

582 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Jeromewenger.com, 35% (16 requests) were made to Assets.over-blog.com and 11% (5 requests) were made to Assets.over-blog-kiwi.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Fresnel.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 537.6 kB (35%)

Content Size

1.5 MB

After Optimization

978.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jeromewenger.com main page is 1.5 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. 55% of websites need less resources to load. Images take 736.9 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 143.7 kB

  • Original 171.9 kB
  • After minification 154.6 kB
  • After compression 28.3 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. 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 143.7 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 40.0 kB

  • Original 736.9 kB
  • After minification 696.9 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. Jerome Wenger images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 320.2 kB

  • Original 564.0 kB
  • After minification 563.9 kB
  • After compression 243.8 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 320.2 kB or 57% of the original size.

CSS Optimization

-79%

Potential reduce by 33.8 kB

  • Original 42.8 kB
  • After minification 40.4 kB
  • After compression 9.0 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. Jeromewenger.com needs all CSS files to be minified and compressed as it can save up to 33.8 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (40%)

Requests Now

43

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jerome Wenger. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jeromewenger.com

jeromewenger.com

290 ms

www.jeromewenger.com

www.jeromewenger.com

326 ms

runtime.d5be4c8d.js

runtime.d5be4c8d.js

454 ms

ads.930ed0c8.js

ads.930ed0c8.js

457 ms

main.90f9cf75.css

main.90f9cf75.css

582 ms

nivo-slider.css

nivo-slider.css

464 ms

default.css

default.css

466 ms

jquery.fancybox.css

jquery.fancybox.css

466 ms

isConnected

isConnected

288 ms

main.c15ef79c.js

main.c15ef79c.js

779 ms

jquery.min.js

jquery.min.js

27 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

390 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

509 ms

loader.js

loader.js

24 ms

sdk.2b21b123cd588a1038cfaf45dfee8f205a1b7259.js

sdk.2b21b123cd588a1038cfaf45dfee8f205a1b7259.js

9 ms

overblog.js

overblog.js

61 ms

bg.jpg

bg.jpg

84 ms

image%2F1383851%2F20231116%2Fob_7c6f32_untitled16-figtoc.jpg

image%2F1383851%2F20231116%2Fob_7c6f32_untitled16-figtoc.jpg

883 ms

ob_28ec3c_logo-if-cmjn-copieblog.jpg

ob_28ec3c_logo-if-cmjn-copieblog.jpg

307 ms

logo-cnrs.jpg

logo-cnrs.jpg

1918 ms

bg-header.jpg

bg-header.jpg

86 ms

header.jpg

header.jpg

185 ms

nav.png

nav.png

88 ms

nav-sep.png

nav-sep.png

88 ms

content.png

content.png

180 ms

content-top.png

content-top.png

183 ms

content-bottom.png

content-bottom.png

184 ms

title-sep.png

title-sep.png

183 ms

btn-page.png

btn-page.png

301 ms

gotop.png

gotop.png

301 ms

image%2F1383851%2F20231115%2Fob_6016e9_imagecombo.jpg

image%2F1383851%2F20231115%2Fob_6016e9_imagecombo.jpg

937 ms

image%2F1383851%2F20231107%2Fob_1477ba_photo-hamza.jpg

image%2F1383851%2F20231107%2Fob_1477ba_photo-hamza.jpg

638 ms

image%2F1383851%2F20231013%2Fob_db772f_photo-xy-fang.JPG

image%2F1383851%2F20231013%2Fob_db772f_photo-xy-fang.JPG

816 ms

image%2F1383851%2F20230905%2Fob_6b9b39_42005-2023-1347-fig1-html.png%3Fas%3Dwebp

image%2F1383851%2F20230905%2Fob_6b9b39_42005-2023-1347-fig1-html.png%3Fas%3Dwebp

567 ms

ob_40edc6_mosaiclogo.jpg

ob_40edc6_mosaiclogo.jpg

299 ms

plusone.js

plusone.js

50 ms

widgets.js

widgets.js

30 ms

gtm.js

gtm.js

146 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

33 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

21 ms

settings

settings

162 ms

ui-gdpr-fr-web.2b21b123cd588a1038cfaf45dfee8f205a1b7259.js

ui-gdpr-fr-web.2b21b123cd588a1038cfaf45dfee8f205a1b7259.js

977 ms

logo-cnrs.jpg

logo-cnrs.jpg

390 ms

ob_logo_cmp.png

ob_logo_cmp.png

82 ms

pixel.png

pixel.png

34 ms

pixel.png

pixel.png

34 ms

Accessibility Review

jeromewenger.com accessibility score

94

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

jeromewenger.com best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

jeromewenger.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

    EN

  • Language Claimed

    FR

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jeromewenger.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed French language. Our system also found out that Jeromewenger.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

jeromewenger.com

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