Tools & Wizards About Us
lespi.cz screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

lespi.cz

Hlavní stránka - VOŠL a SLŠ Bedřicha Schwarzenberga, Písek

Page Load Speed

4 sec in total

First Response

415 ms

Resources Loaded

3.2 sec

Page Rendered

341 ms

lespi.cz screenshot

About Website

Visit lespi.cz now to see the best up-to-date Lespi content for Czech Republic and also check out these interesting facts you probably never knew about lespi.cz

Jsme školou pro všechny, komu záleží na odpovědné péči o naše lesy a naši krajinu a kdo jsou otevřeni současným i budoucím výzvám - VOŠL a SLŠ Bedřicha Schwarzenberga, Písek

Visit lespi.cz

Key Findings

We analyzed Lespi.cz page load time and found that the first response time was 415 ms and then it took 3.6 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

lespi.cz performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

lespi.cz

415 ms

www.lespi.cz

955 ms

css

104 ms

css

206 ms

css

287 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 89% of them (39 requests) were addressed to the original Lespi.cz, 9% (4 requests) were made to Shared.czechproject.cz and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (955 ms) belongs to the original domain Lespi.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 311.3 kB (16%)

Content Size

1.9 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lespi.cz main page is 1.9 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. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 26.8 kB

  • Original 34.9 kB
  • After minification 34.2 kB
  • After compression 8.1 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 26.8 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 64.7 kB

  • Original 1.5 MB
  • After minification 1.5 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. Lespi images are well optimized though.

JavaScript Optimization

-49%

Potential reduce by 57.2 kB

  • Original 116.5 kB
  • After minification 114.6 kB
  • After compression 59.3 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 57.2 kB or 49% of the original size.

CSS Optimization

-83%

Potential reduce by 162.6 kB

  • Original 197.1 kB
  • After minification 188.7 kB
  • After compression 34.5 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. Lespi.cz needs all CSS files to be minified and compressed as it can save up to 162.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (40%)

Requests Now

40

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lespi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lespi.cz

lespi.cz

415 ms

www.lespi.cz

www.lespi.cz

955 ms

css

css

104 ms

css

css

206 ms

css

css

287 ms

bootstrap.min.css

bootstrap.min.css

570 ms

elegant_ico.css

elegant_ico.css

380 ms

style.min.css

style.min.css

390 ms

jquery.min.js

jquery.min.js

26 ms

bootstrap.min.js

bootstrap.min.js

395 ms

magnific-popup.min.js

magnific-popup.min.js

395 ms

fb-login.js

fb-login.js

379 ms

scripts.min.js

scripts.min.js

473 ms

ie10-viewport-bug-workaround.js

ie10-viewport-bug-workaround.js

476 ms

footer_opt_in.js

footer_opt_in.js

645 ms

magnific-popup.css

magnific-popup.css

484 ms

cprespons.css

cprespons.css

495 ms

slider.css

slider.css

493 ms

logo.png

logo.png

640 ms

facebook_hlavicka.svg

facebook_hlavicka.svg

641 ms

instagram_hlavicka.svg

instagram_hlavicka.svg

642 ms

youtube_hlavicka.svg

youtube_hlavicka.svg

643 ms

6.jpg

6.jpg

893 ms

d.jpg

d.jpg

672 ms

bakalari_logo.png

bakalari_logo.png

672 ms

moodle.png

moodle.png

763 ms

stravacz_logo_alone.png

stravacz_logo_alone.png

690 ms

17.jpg

17.jpg

692 ms

16.jpg

16.jpg

764 ms

15.jpg

15.jpg

764 ms

14.jpg

14.jpg

790 ms

13.jpg

13.jpg

791 ms

8360.jpg

8360.jpg

954 ms

12.jpg

12.jpg

859 ms

8349.jpg

8349.jpg

860 ms

video_skola.jpg

video_skola.jpg

504 ms

Arboretum.jpg

Arboretum.jpg

695 ms

fotogalerie_skola.jpg

fotogalerie_skola.jpg

470 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

318 ms

ElegantIcons.woff

ElegantIcons.woff

351 ms

js.cookie.js

js.cookie.js

97 ms

times.svg

times.svg

98 ms

cookies.svg

cookies.svg

190 ms

print.css

print.css

101 ms

Accessibility Review

lespi.cz accessibility score

78

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.

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

lespi.cz 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

lespi.cz SEO score

97

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

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lespi.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Lespi.cz 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

lespi.cz

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