Tools & Wizards About Us
jwconstruction.pl screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jwconstruction.pl

Deweloper Warszawa, nowe mieszkania - J.W. Construction Holding S.A.

Page Load Speed

3.5 sec in total

First Response

516 ms

Resources Loaded

2.4 sec

Page Rendered

518 ms

jwconstruction.pl screenshot

About Website

Welcome to jwconstruction.pl homepage info - get ready to check Jw Construction best content for Poland right away, or after learning these important things about jwconstruction.pl

J.W. Construction to największy polski deweloper. Oferujemy nowe mieszkania w Warszawie i największych miastach kraju.

Visit jwconstruction.pl

Key Findings

We analyzed Jwconstruction.pl page load time and found that the first response time was 516 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

jwconstruction.pl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value1,770 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.059

98/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

jwc.pl

516 ms

css

42 ms

index.php

112 ms

index.php

223 ms

index.php

547 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Jwconstruction.pl, 11% (5 requests) were made to Fonts.gstatic.com and 7% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (952 ms) relates to the external source Jwc.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.1 kB (10%)

Content Size

2.1 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jwconstruction.pl main page is 2.1 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 111.6 kB

  • Original 125.6 kB
  • After minification 63.9 kB
  • After compression 14.0 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 61.8 kB, which is 49% 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 111.6 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.8 MB
  • After minification 1.8 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. Jw Construction images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 87.4 kB

  • Original 135.4 kB
  • After minification 135.4 kB
  • After compression 48.1 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 87.4 kB or 65% of the original size.

CSS Optimization

-15%

Potential reduce by 104 B

  • Original 698 B
  • After minification 698 B
  • After compression 594 B

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. Jwconstruction.pl needs all CSS files to be minified and compressed as it can save up to 104 B or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (42%)

Requests Now

36

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jw Construction. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jwc.pl

jwc.pl

516 ms

css

css

42 ms

index.php

index.php

112 ms

index.php

index.php

223 ms

index.php

index.php

547 ms

uc.js

uc.js

48 ms

js

js

82 ms

conversion.js

conversion.js

96 ms

reset.css

reset.css

219 ms

gtm.js

gtm.js

296 ms

gtm.js

gtm.js

299 ms

fbevents.js

fbevents.js

298 ms

flag.svg

flag.svg

295 ms

logo.png

logo.png

316 ms

menu.svg

menu.svg

314 ms

phone.svg

phone.svg

314 ms

235.jpg

235.jpg

629 ms

c75b82_big.jpg

c75b82_big.jpg

952 ms

search.svg

search.svg

410 ms

e2ef0c_min.jpg

e2ef0c_min.jpg

726 ms

eaa028_min.jpg

eaa028_min.jpg

629 ms

9cee16_min.jpg

9cee16_min.jpg

519 ms

ab7bb7_min.jpg

ab7bb7_min.jpg

520 ms

c75b82_min.jpg

c75b82_min.jpg

734 ms

656dbe_min.jpg

656dbe_min.jpg

629 ms

8ea41d_min.jpg

8ea41d_min.jpg

737 ms

db50ca_min.jpg

db50ca_min.jpg

736 ms

e77a83_min.jpg

e77a83_min.jpg

738 ms

077dc6_min.jpg

077dc6_min.jpg

830 ms

img_03.png

img_03.png

949 ms

drop.svg

drop.svg

843 ms

like-ico.svg

like-ico.svg

845 ms

Oferta-tygodnia.png

Oferta-tygodnia.png

847 ms

fb.svg

fb.svg

934 ms

autentika-logo.svg

autentika-logo.svg

951 ms

236 ms

undefined

undefined

724 ms

select.svg

select.svg

702 ms

KFOmCnqEu92Fr1Mu7GxP.ttf

KFOmCnqEu92Fr1Mu7GxP.ttf

61 ms

KFOlCnqEu92Fr1MmEU9fChc9.ttf

KFOlCnqEu92Fr1MmEU9fChc9.ttf

73 ms

KFOlCnqEu92Fr1MmSU5fChc9.ttf

KFOlCnqEu92Fr1MmSU5fChc9.ttf

118 ms

KFOkCnqEu92Fr1MmgVxGIzc.ttf

KFOkCnqEu92Fr1MmgVxGIzc.ttf

147 ms

KFOlCnqEu92Fr1MmWUlfChc9.ttf

KFOlCnqEu92Fr1MmWUlfChc9.ttf

147 ms

127 ms

Accessibility Review

jwconstruction.pl accessibility score

89

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.

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

jwconstruction.pl best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jwconstruction.pl SEO score

86

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jwconstruction.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 Jwconstruction.pl 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

jwconstruction.pl

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