Tools & Wizards About Us
serwisdj.pl screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    84% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

serwisdj.pl

SerwisDJ.pl - Skup i sprzedaż sprzętu dla DJ, klubów oraz dyskotek

Page Load Speed

3.8 sec in total

First Response

489 ms

Resources Loaded

3.2 sec

Page Rendered

137 ms

serwisdj.pl screenshot

About Website

Click here to check amazing SerwisDJ content. Otherwise, check out these important facts you probably never knew about serwisdj.pl

Najlepsze ceny, ekspresowe naprawy i usługi obięte gwarancją. To tylko niektóre z naszych atututów. Sprawdź to!

Visit serwisdj.pl

Key Findings

We analyzed Serwisdj.pl page load time and found that the first response time was 489 ms and then it took 3.4 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

serwisdj.pl performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

serwisdj.pl

489 ms

style.css

349 ms

index_creation.php

127 ms

bg.gif

225 ms

logo.gif

333 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 8% of them (1 request) were addressed to the original Serwisdj.pl, 42% (5 requests) were made to Kf.nazwa.pl and 25% (3 requests) were made to Content.netart.pl. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Dm.netart.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 555.0 kB (78%)

Content Size

708.1 kB

After Optimization

153.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Serwisdj.pl main page is 708.1 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. Only 10% of websites need less resources to load. Images take 673.8 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 3.9 kB

  • Original 5.9 kB
  • After minification 5.1 kB
  • After compression 2.0 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 800 B, which is 13% 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 3.9 kB or 66% of the original size.

Image Optimization

-81%

Potential reduce by 543.2 kB

  • Original 673.8 kB
  • After minification 130.6 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, SerwisDJ needs image optimization as it can save up to 543.2 kB or 81% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-24%

Potential reduce by 6.3 kB

  • Original 26.2 kB
  • After minification 25.7 kB
  • After compression 19.8 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 6.3 kB or 24% of the original size.

CSS Optimization

-67%

Potential reduce by 1.5 kB

  • Original 2.3 kB
  • After minification 1.9 kB
  • After compression 745 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. Serwisdj.pl needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (27%)

Requests Now

11

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SerwisDJ. 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 JavaScripts and as a result speed up the page load time.

Network Requests Diagram

serwisdj.pl

serwisdj.pl

489 ms

style.css

style.css

349 ms

index_creation.php

index_creation.php

127 ms

bg.gif

bg.gif

225 ms

logo.gif

logo.gif

333 ms

bg_head.gif

bg_head.gif

224 ms

ga.js

ga.js

7 ms

__utm.gif

__utm.gif

13 ms

spcjs.php

spcjs.php

362 ms

spc.php

spc.php

161 ms

fl.js

fl.js

233 ms

domeny_blackdown.jpg

domeny_blackdown.jpg

1761 ms

Accessibility Review

serwisdj.pl accessibility score

70

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

serwisdj.pl best practices score

83

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

SEO Factors

serwisdj.pl SEO score

67

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serwisdj.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Serwisdj.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

serwisdj.pl

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