Tools & Wizards About Us
jst.fr screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

jst.fr

Connectors, terminals, & Toolings

Page Load Speed

4.8 sec in total

First Response

536 ms

Resources Loaded

3.9 sec

Page Rendered

409 ms

jst.fr screenshot

About Website

Click here to check amazing Jst content for India. Otherwise, check out these important facts you probably never knew about jst.fr

JST designs, manufactures and provides connectors for electrical and electronic appliances. JST also provides tools and machines.

Visit jst.fr

Key Findings

We analyzed Jst.fr page load time and found that the first response time was 536 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 65% of websites can load faster.

Performance Metrics

jst.fr performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value5.2 s

60/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

jst.fr

536 ms

www.jst.fr

646 ms

prototype.js

488 ms

kwo.js

391 ms

controller.js

188 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 97% of them (73 requests) were addressed to the original Jst.fr, 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Jst.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 548.6 kB (37%)

Content Size

1.5 MB

After Optimization

942.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jst.fr 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. 40% of websites need less resources to load. Images take 908.9 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 39.6 kB

  • Original 46.6 kB
  • After minification 32.1 kB
  • After compression 6.9 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 14.4 kB, which is 31% 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 39.6 kB or 85% of the original size.

Image Optimization

-9%

Potential reduce by 80.0 kB

  • Original 908.9 kB
  • After minification 828.9 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. Jst images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 353.1 kB

  • Original 448.9 kB
  • After minification 344.4 kB
  • After compression 95.8 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 353.1 kB or 79% of the original size.

CSS Optimization

-88%

Potential reduce by 75.9 kB

  • Original 86.3 kB
  • After minification 74.3 kB
  • After compression 10.5 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. Jst.fr needs all CSS files to be minified and compressed as it can save up to 75.9 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (30%)

Requests Now

73

After Optimization

51

  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jst. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jst.fr

jst.fr

536 ms

www.jst.fr

www.jst.fr

646 ms

prototype.js

prototype.js

488 ms

kwo.js

kwo.js

391 ms

controller.js

controller.js

188 ms

controller.js

controller.js

193 ms

front.js

front.js

312 ms

scriptaculous.js

scriptaculous.js

205 ms

caroussel.js

caroussel.js

289 ms

front.css

front.css

412 ms

effects.js

effects.js

97 ms

dragdrop.js

dragdrop.js

101 ms

controls.js

controls.js

196 ms

slider.js

slider.js

95 ms

reset.css

reset.css

105 ms

stylesheet.css

stylesheet.css

104 ms

slideshowarrow.png

slideshowarrow.png

206 ms

searchbar-background.png

searchbar-background.png

120 ms

arrowsearchbar.png

arrowsearchbar.png

119 ms

searchbarbutton.png

searchbarbutton.png

134 ms

loupe.png

loupe.png

117 ms

logo.png

logo.png

223 ms

close.png

close.png

119 ms

house.png

house.png

193 ms

enteteslideshow1.png

enteteslideshow1.png

193 ms

slideshowgauche.png

slideshowgauche.png

197 ms

slideshowdroite.png

slideshowdroite.png

196 ms

enteteslideshow2.png

enteteslideshow2.png

200 ms

slide4.jpg

slide4.jpg

563 ms

slideshowa.png

slideshowa.png

310 ms

slideshowspan.png

slideshowspan.png

312 ms

img-home-01.jpg

img-home-01.jpg

1043 ms

img-home-04en.jpg

img-home-04en.jpg

470 ms

img-home-02.jpg

img-home-02.jpg

1009 ms

titrecategorie-bg.png

titrecategorie-bg.png

444 ms

mars2016web.pdf.jpg

mars2016web.pdf.jpg

693 ms

sbo2.jpg

sbo2.jpg

572 ms

produitdumois_en.png

produitdumois_en.png

599 ms

carousel-prev.png

carousel-prev.png

671 ms

carousel-puce.png

carousel-puce.png

684 ms

carousel-next.png

carousel-next.png

723 ms

phd.jpg

phd.jpg

802 ms

pad.jpg

pad.jpg

816 ms

as.jpg

as.jpg

933 ms

xawtwgw.jpg

xawtwgw.jpg

956 ms

trz.jpg

trz.jpg

1142 ms

msa1.jpg

msa1.jpg

1059 ms

applicator.jpg

applicator.jpg

1182 ms

msa2.jpg

msa2.jpg

1205 ms

pa.jpg

pa.jpg

1133 ms

sbo.jpg

sbo.jpg

1154 ms

xaf.jpg

xaf.jpg

1113 ms

psst.jpg

psst.jpg

1189 ms

analytics.js

analytics.js

46 ms

fha.jpg

fha.jpg

1255 ms

pcr.jpg

pcr.jpg

1169 ms

wpj.jpg

wpj.jpg

1185 ms

pal.jpg

pal.jpg

1181 ms

cpi.jpg

cpi.jpg

1444 ms

collect

collect

32 ms

bcc.jpg

bcc.jpg

1179 ms

dac.jpg

dac.jpg

1184 ms

vyh.jpg

vyh.jpg

1199 ms

sab.jpg

sab.jpg

1438 ms

sin.jpg

sin.jpg

1277 ms

sqz.jpg

sqz.jpg

1422 ms

RCYp.jpg

RCYp.jpg

1178 ms

iso-9001.png

iso-9001.png

1204 ms

iso-14001.png

iso-14001.png

1153 ms

iso-16949.png

iso-16949.png

1143 ms

header2.png

header2.png

1071 ms

go-up.png

go-up.png

1084 ms

header1.png

header1.png

1090 ms

abecedaire.png

abecedaire.png

1047 ms

carousel-puce-selected.png

carousel-puce-selected.png

135 ms

Accessibility Review

jst.fr accessibility score

76

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

jst.fr 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jst.fr SEO score

54

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Document doesn't have a valid hreflang

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 Jst.fr 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 Jst.fr 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

jst.fr

Open Graph description is not detected on the main page of Jst. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: