Tools & Wizards About Us
s-lec.nl screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    82% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

s-lec.nl

SEKISUI S-Lec. Leading technology, leading the way.

Page Load Speed

3.1 sec in total

First Response

361 ms

Resources Loaded

2.1 sec

Page Rendered

617 ms

s-lec.nl screenshot

About Website

Visit s-lec.nl now to see the best up-to-date S Lec content and also check out these interesting facts you probably never knew about s-lec.nl

Sixty years of improvement of our glass interlayer technology have made us the leading brand for PVB interlayer film in the automotive industry.

Visit s-lec.nl

Key Findings

We analyzed S-lec.nl page load time and found that the first response time was 361 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

s-lec.nl performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

s-lec.nl

361 ms

www.s-lec.eu

1042 ms

css

37 ms

9c39b8f40c7198a3307f18c8136f3216.css

191 ms

219dabac8f40ef9ebb0c3493670e6a6b.js

487 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 7% of them (1 request) were addressed to the original S-lec.nl, 64% (9 requests) were made to S-lec.eu and 14% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source S-lec.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 94.6 kB (26%)

Content Size

359.3 kB

After Optimization

264.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of S-lec.nl main page is 359.3 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. 15% of websites need less resources to load. Images take 177.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 83.3 kB

  • Original 104.1 kB
  • After minification 96.0 kB
  • After compression 20.8 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 83.3 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 177.2 kB
  • After minification 175.4 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. S Lec images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 39.2 kB
  • After minification 39.2 kB
  • After compression 39.2 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

-25%

Potential reduce by 9.5 kB

  • Original 38.8 kB
  • After minification 38.8 kB
  • After compression 29.2 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. S-lec.nl needs all CSS files to be minified and compressed as it can save up to 9.5 kB or 25% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of S Lec. According to our analytics all requests are already optimized.

Network Requests Diagram

s-lec.nl

s-lec.nl

361 ms

www.s-lec.eu

www.s-lec.eu

1042 ms

css

css

37 ms

9c39b8f40c7198a3307f18c8136f3216.css

9c39b8f40c7198a3307f18c8136f3216.css

191 ms

219dabac8f40ef9ebb0c3493670e6a6b.js

219dabac8f40ef9ebb0c3493670e6a6b.js

487 ms

analytics.js

analytics.js

17 ms

s-lec@2x.png

s-lec@2x.png

97 ms

home-header.jpg

home-header.jpg

403 ms

home-header-520x293.jpg

home-header-520x293.jpg

403 ms

blocks-blue.png

blocks-blue.png

265 ms

blocks-blue-2.png

blocks-blue-2.png

267 ms

sekisui.png

sekisui.png

269 ms

collect

collect

14 ms

nr-spa-1216.min.js

nr-spa-1216.min.js

61 ms

Accessibility Review

s-lec.nl 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

s-lec.nl 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

Page has valid source maps

SEO Factors

s-lec.nl 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

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

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 S-lec.nl 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 S-lec.nl 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

s-lec.nl

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