Tools & Wizards About Us
elektronik.lodz.pl screenshot

Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

elektronik.lodz.pl

Zespół Szkół Elektroniczno-Informatycznych w Łodzi - »ELEKTRONIK« (dawne ZSP nr 10)

Page Load Speed

6.3 sec in total

First Response

493 ms

Resources Loaded

5.1 sec

Page Rendered

689 ms

elektronik.lodz.pl screenshot

About Website

Welcome to elektronik.lodz.pl homepage info - get ready to check ELEKTRONIK Lodz best content for Poland right away, or after learning these important things about elektronik.lodz.pl

Zespół Szkół Ponadgimnazjalnych nr 10 w Łodzi - ZSP 10 - dawny Elektronik: Technik elektronik, Technik mechatronik, Technik informatyk, Technik teleinformatyk, Technik telekomunikacji, LO - klasa spor...

Visit elektronik.lodz.pl

Key Findings

We analyzed Elektronik.lodz.pl page load time and found that the first response time was 493 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

elektronik.lodz.pl performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.051

99/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

elektronik.lodz.pl

493 ms

bootstrap.min.css

254 ms

style.css

241 ms

css

33 ms

css

51 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 85% of them (47 requests) were addressed to the original Elektronik.lodz.pl, 7% (4 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (4.1 sec) belongs to the original domain Elektronik.lodz.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 135.0 kB (3%)

Content Size

3.9 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Elektronik.lodz.pl main page is 3.9 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. 35% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 36.9 kB

  • Original 52.8 kB
  • After minification 50.9 kB
  • After compression 15.9 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 36.9 kB or 70% of the original size.

Image Optimization

-3%

Potential reduce by 97.1 kB

  • Original 3.8 MB
  • After minification 3.7 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. ELEKTRONIK Lodz images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 46 B

  • Original 73.6 kB
  • After minification 73.6 kB
  • After compression 73.6 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

-4%

Potential reduce by 913 B

  • Original 24.7 kB
  • After minification 24.7 kB
  • After compression 23.8 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. Elektronik.lodz.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (17%)

Requests Now

36

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ELEKTRONIK Lodz. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

elektronik.lodz.pl

elektronik.lodz.pl

493 ms

bootstrap.min.css

bootstrap.min.css

254 ms

style.css

style.css

241 ms

css

css

33 ms

css

css

51 ms

jquery.min.js

jquery.min.js

495 ms

bootstrap.min.js

bootstrap.min.js

251 ms

panel.js

panel.js

265 ms

3243cde5.jpg

3243cde5.jpg

1602 ms

logo_zsp10.png

logo_zsp10.png

251 ms

godlo.png

godlo.png

490 ms

14

14

194 ms

6

6

276 ms

moodle-logo.png

moodle-logo.png

195 ms

13_s

13_s

372 ms

7_s

7_s

382 ms

6_s

6_s

395 ms

10_s

10_s

377 ms

9_s

9_s

401 ms

8_s

8_s

496 ms

15

15

502 ms

11

11

632 ms

197fa356.png

197fa356.png

771 ms

foot-1.png

foot-1.png

526 ms

foot-3.png

foot-3.png

612 ms

foot-4.png

foot-4.png

750 ms

logo-cke.png

logo-cke.png

626 ms

332616e0.jpg

332616e0.jpg

1445 ms

34a57a4d.jpg

34a57a4d.jpg

1752 ms

31d986b9.jpg

31d986b9.jpg

879 ms

30cb7336.jpg

30cb7336.jpg

1595 ms

2983fc36.jpg

2983fc36.jpg

2592 ms

289ed9e4.jpg

289ed9e4.jpg

1269 ms

277322d4.jpg

277322d4.jpg

1654 ms

2632715f.jpg

2632715f.jpg

1809 ms

22c3577d.jpg

22c3577d.jpg

2210 ms

23d90e97.jpg

23d90e97.jpg

4065 ms

183d2ef5.jpg

183d2ef5.jpg

2047 ms

17d3052e.jpg

17d3052e.jpg

2151 ms

16b2df25.jpg

16b2df25.jpg

2322 ms

1514d4b2.jpg

1514d4b2.jpg

2687 ms

lo.jpg

lo.jpg

858 ms

ti.jpg

ti.jpg

825 ms

tp.jpg

tp.jpg

840 ms

tm.jpg

tm.jpg

843 ms

S6uyw4BMUTPHjxAwWA.woff

S6uyw4BMUTPHjxAwWA.woff

53 ms

S6u9w4BMUTPHh7USSwaPHw.woff

S6u9w4BMUTPHh7USSwaPHw.woff

59 ms

S6u9w4BMUTPHh6UVSwaPHw.woff

S6u9w4BMUTPHh6UVSwaPHw.woff

85 ms

2251

2251

1332 ms

2207

2207

1541 ms

2232

2232

1305 ms

2169

2169

1332 ms

1cXxaUPXBpj2rGoU7C9WhnGD.woff

1cXxaUPXBpj2rGoU7C9WhnGD.woff

49 ms

ga.js

ga.js

35 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

elektronik.lodz.pl accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

elektronik.lodz.pl best practices score

83

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

SEO Factors

elektronik.lodz.pl SEO score

96

Search Engine Optimization Advices

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

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

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

elektronik.lodz.pl

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