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jw-system.pl screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

jw-system.pl

O Nas Szczecin – Antykorozja Prace antykorozyjne Powłoki ognioochronne i antykorozyjne Antykorozja stali i betonu Konstrukcje stalowe i betonowe Powło...

Page Load Speed

3.9 sec in total

First Response

414 ms

Resources Loaded

3.3 sec

Page Rendered

231 ms

jw-system.pl screenshot

About Website

Visit jw-system.pl now to see the best up-to-date Jw System content and also check out these interesting facts you probably never knew about jw-system.pl

JW SYSTEM Szczecin - Antykorozja w Szczecinie antykorozja ze stali i betonu Szczecin, konstrukcje stalowe i betonowe, zbiorniki betonowe Szczecin, malowanie natryskowe i malowanie przemysłowe w Szczec...

Visit jw-system.pl

Key Findings

We analyzed Jw-system.pl page load time and found that the first response time was 414 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

jw-system.pl performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

jw-system.pl

414 ms

www.jw-system.pl

674 ms

base.css

122 ms

error.css

258 ms

base.css

138 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Jw-system.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Jw-system.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.7 kB (23%)

Content Size

170.5 kB

After Optimization

131.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Jw-system.pl main page is 170.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 161.8 kB which makes up the majority of the site volume.

HTML Optimization

-55%

Potential reduce by 774 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 637 B

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 774 B or 55% of the original size.

Image Optimization

-20%

Potential reduce by 32.4 kB

  • Original 161.8 kB
  • After minification 129.3 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. Obviously, Jw System needs image optimization as it can save up to 32.4 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-75%

Potential reduce by 5.5 kB

  • Original 7.3 kB
  • After minification 4.0 kB
  • After compression 1.9 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. Jw-system.pl needs all CSS files to be minified and compressed as it can save up to 5.5 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (43%)

Requests Now

7

After Optimization

4

  • Images
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jw System. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jw-system.pl

jw-system.pl

414 ms

www.jw-system.pl

www.jw-system.pl

674 ms

base.css

base.css

122 ms

error.css

error.css

258 ms

base.css

base.css

138 ms

error.css

error.css

1293 ms

main.png

main.png

424 ms

error.png

error.png

205 ms

browser_logos.png

browser_logos.png

639 ms

Accessibility Review

jw-system.pl accessibility score

78

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

<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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jw-system.pl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

Browser errors were logged to the console

SEO Factors

jw-system.pl 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

    PL

  • Language Claimed

    PL

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jw-system.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Jw-system.pl main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

jw-system.pl

Open Graph description is not detected on the main page of Jw System. 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: