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j-flex.com screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

j-flex.com

Rubber Products | Rubber Components & Sheetings | J-Flex

Page Load Speed

2.5 sec in total

First Response

184 ms

Resources Loaded

1.6 sec

Page Rendered

775 ms

j-flex.com screenshot

About Website

Visit j-flex.com now to see the best up-to-date J Flex content and also check out these interesting facts you probably never knew about j-flex.com

J-Flex are a leading rubber products provider - high-performance rubber components and sheetings including Viton™, EPDM, and more.

Visit j-flex.com

Key Findings

We analyzed J-flex.com page load time and found that the first response time was 184 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

j-flex.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

www.j-flex.com

184 ms

gb.svg

79 ms

email-decode.min.js

33 ms

wgarrowdown.png

55 ms

J-Flex-Rubber-Products-logo.svg

51 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 99% of them (85 requests) were addressed to the original J-flex.com, 1% (1 request) were made to Cdn.weglot.com. The less responsive or slowest element that took the longest time to load (882 ms) belongs to the original domain J-flex.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 379.5 kB (12%)

Content Size

3.2 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of J-flex.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. 65% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 379.5 kB

  • Original 441.8 kB
  • After minification 427.4 kB
  • After compression 62.4 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 379.5 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 46 B

  • 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. J Flex images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 17 B

  • Original 655 B
  • After minification 655 B
  • After compression 638 B

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.

Requests Breakdown

Number of requests can be reduced by 8 (10%)

Requests Now

78

After Optimization

70

  • Images
  • JavaScript

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Flex. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

www.j-flex.com

www.j-flex.com

184 ms

gb.svg

gb.svg

79 ms

email-decode.min.js

email-decode.min.js

33 ms

wgarrowdown.png

wgarrowdown.png

55 ms

J-Flex-Rubber-Products-logo.svg

J-Flex-Rubber-Products-logo.svg

51 ms

product-and-category-feature-images-specialised-rubber-sheetings.jpg

product-and-category-feature-images-specialised-rubber-sheetings.jpg

53 ms

product-and-category-feature-images-manufactured-rubber-components.jpg

product-and-category-feature-images-manufactured-rubber-components.jpg

165 ms

product-and-category-feature-images-vacuum-forming-consumables-3.jpg

product-and-category-feature-images-vacuum-forming-consumables-3.jpg

54 ms

product-and-category-feature-images-other-products-and-services.jpg

product-and-category-feature-images-other-products-and-services.jpg

59 ms

markets-feature_energy-sector.jpg

markets-feature_energy-sector.jpg

63 ms

markets-feature_manufacturing-engineering.jpg

markets-feature_manufacturing-engineering.jpg

274 ms

markets-feature-image-food-and-drink-1.jpg

markets-feature-image-food-and-drink-1.jpg

64 ms

markets-feature-image-rail-industry-1.jpg

markets-feature-image-rail-industry-1.jpg

65 ms

markets-feature-image-automotive-1.jpg

markets-feature-image-automotive-1.jpg

71 ms

markets-feature-image-pharmaceutical-1.jpg

markets-feature-image-pharmaceutical-1.jpg

73 ms

rail-industry-RISQS-image.jpg

rail-industry-RISQS-image.jpg

273 ms

LOGOs-for-Carousel_AP-Group.png

LOGOs-for-Carousel_AP-Group.png

399 ms

LOGOs-for-Carousel_ATL.png

LOGOs-for-Carousel_ATL.png

91 ms

LOGOs-for-Carousel_Bakkavor.png

LOGOs-for-Carousel_Bakkavor.png

169 ms

LOGOs-for-Carousel_Cosworth.png

LOGOs-for-Carousel_Cosworth.png

103 ms

LOGOs-for-Carousel_Delta-Power-Group.png

LOGOs-for-Carousel_Delta-Power-Group.png

113 ms

LOGOs-for-Carousel_Donaldson.png

LOGOs-for-Carousel_Donaldson.png

137 ms

LOGOs-for-Carousel_Dover-Harbour-Board.png

LOGOs-for-Carousel_Dover-Harbour-Board.png

149 ms

LOGOs-for-Carousel_EDF-Energy.png

LOGOs-for-Carousel_EDF-Energy.png

159 ms

LOGOs-for-Carousel_Emmvee.png

LOGOs-for-Carousel_Emmvee.png

168 ms

LOGOs-for-Carousel_ERIKS.png

LOGOs-for-Carousel_ERIKS.png

275 ms

LOGOs-for-Carousel_Hitachi.png

LOGOs-for-Carousel_Hitachi.png

274 ms

LOGOs-for-Carousel_James-Walker.png

LOGOs-for-Carousel_James-Walker.png

181 ms

LOGOs-for-Carousel_Kimberly-Clark.png

LOGOs-for-Carousel_Kimberly-Clark.png

269 ms

LOGOs-for-Carousel_London-Underground.png

LOGOs-for-Carousel_London-Underground.png

268 ms

LOGOs-for-Carousel_LOreal.png

LOGOs-for-Carousel_LOreal.png

269 ms

LOGOs-for-Carousel_MAYA.png

LOGOs-for-Carousel_MAYA.png

270 ms

LOGOs-for-Carousel_Ministry-of-Defence.png

LOGOs-for-Carousel_Ministry-of-Defence.png

272 ms

LOGOs-for-Carousel_Mugler.png

LOGOs-for-Carousel_Mugler.png

337 ms

LOGOs-for-Carousel_Oerlikon.png

LOGOs-for-Carousel_Oerlikon.png

562 ms

LOGOs-for-Carousel_Pepsico-Brands.png

LOGOs-for-Carousel_Pepsico-Brands.png

276 ms

LOGOs-for-Carousel_Premier-Foods.png

LOGOs-for-Carousel_Premier-Foods.png

360 ms

Roboto-Regular-webfont.woff

Roboto-Regular-webfont.woff

394 ms

Roboto-Medium-webfont.woff

Roboto-Medium-webfont.woff

338 ms

Roboto-Light-webfont.woff

Roboto-Light-webfont.woff

449 ms

Roboto-Bold-webfont.woff

Roboto-Bold-webfont.woff

406 ms

LOGOs-for-Carousel_Renewsys.png

LOGOs-for-Carousel_Renewsys.png

344 ms

LOGOs-for-Carousel_Siemens.png

LOGOs-for-Carousel_Siemens.png

427 ms

LOGOs-for-Carousel_Spirit-Aerosystems.png

LOGOs-for-Carousel_Spirit-Aerosystems.png

339 ms

LOGOs-for-Carousel_TATA.png

LOGOs-for-Carousel_TATA.png

378 ms

LOGOs-for-Carousel_Thermo-Fisher.png

LOGOs-for-Carousel_Thermo-Fisher.png

431 ms

LOGOs-for-Carousel_Veolia-Water.png

LOGOs-for-Carousel_Veolia-Water.png

377 ms

email-2.png

email-2.png

372 ms

quote.png

quote.png

369 ms

ask.png

ask.png

353 ms

Markets-Montage-website-1.jpg

Markets-Montage-website-1.jpg

610 ms

Article-Image-EN45545-400x250.jpg

Article-Image-EN45545-400x250.jpg

440 ms

6-sources-of-rubber-knowledge-400x250.jpg

6-sources-of-rubber-knowledge-400x250.jpg

444 ms

Food-Safe-Products-Post-1-400x250.jpg

Food-Safe-Products-Post-1-400x250.jpg

439 ms

gallery-images-mouldings_02-400x250.jpg

gallery-images-mouldings_02-400x250.jpg

437 ms

strips-of-rubber-400x250.jpg

strips-of-rubber-400x250.jpg

484 ms

10-point-checklist-blog-image-400x250.jpg

10-point-checklist-blog-image-400x250.jpg

497 ms

rubber-tree-plantation-400x250.jpg

rubber-tree-plantation-400x250.jpg

547 ms

SPONGE-SHEETS_8-400x250.jpg

SPONGE-SHEETS_8-400x250.jpg

503 ms

rubber-in-cold-temperatures-blog-image-400x250.jpg

rubber-in-cold-temperatures-blog-image-400x250.jpg

426 ms

sheeting-guide-2022-front-featured-image-400x250.jpg

sheeting-guide-2022-front-featured-image-400x250.jpg

724 ms

Fluoroelastomers-600x900-featured-400x250.jpg

Fluoroelastomers-600x900-featured-400x250.jpg

499 ms

Fire-Resistant-Rubber-400x250.jpg

Fire-Resistant-Rubber-400x250.jpg

529 ms

website-redesign-history-blog-400x250.jpg

website-redesign-history-blog-400x250.jpg

532 ms

Nitrile-Blog-main-image-400x250.jpg

Nitrile-Blog-main-image-400x250.jpg

450 ms

silicon-blog-image-400x250.jpg

silicon-blog-image-400x250.jpg

538 ms

durometer-blog-post-image-1-400x250.jpg

durometer-blog-post-image-1-400x250.jpg

462 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

681 ms

modules.woff

modules.woff

602 ms

Roboto-Italic-webfont.woff

Roboto-Italic-webfont.woff

579 ms

gallery-viton-and-fkm_05-400x250.jpg

gallery-viton-and-fkm_05-400x250.jpg

554 ms

vac-sil-chart-and-samples-400x250.jpg

vac-sil-chart-and-samples-400x250.jpg

560 ms

life-expectancy-silicone-blog-image-400x250.jpg

life-expectancy-silicone-blog-image-400x250.jpg

882 ms

statistics-icons-circular-countries.png

statistics-icons-circular-countries.png

609 ms

statistics-icons-circular-years.png

statistics-icons-circular-years.png

607 ms

statistics-icons-circular-ontime.png

statistics-icons-circular-ontime.png

601 ms

VITON_partner_logo.png

VITON_partner_logo.png

552 ms

J-Flex-Rubber-Products-logo-dark-bgnds.png

J-Flex-Rubber-Products-logo-dark-bgnds.png

552 ms

contact-email-us.svg

contact-email-us.svg

554 ms

request-quote.svg

request-quote.svg

556 ms

ask-the-experts.svg

ask-the-experts.svg

647 ms

icon-share.svg

icon-share.svg

532 ms

icon-email.svg

icon-email.svg

617 ms

icon-linkedin.svg

icon-linkedin.svg

606 ms

twitter-X-logo.svg

twitter-X-logo.svg

498 ms

icon-facebook.svg

icon-facebook.svg

479 ms

Accessibility Review

j-flex.com accessibility score

93

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

j-flex.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

SEO Factors

j-flex.com SEO score

85

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 J-flex.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 J-flex.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

j-flex.com

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