Tools & Wizards About Us

Report Summary

  • 91

    Performance

    Renders faster than
    91% 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

  • 97

    SEO

    Google-friendlier than
    91% of websites

spsejecna.cz

SPŠE Ječná - Novinky

Page Load Speed

2.9 sec in total

First Response

312 ms

Resources Loaded

2.3 sec

Page Rendered

256 ms

About Website

Click here to check amazing Spsejecna content for Czech Republic. Otherwise, check out these important facts you probably never knew about spsejecna.cz

Škola patří mezi průmyslové školy s dlouholetou tradicí a má v rámci pražských odborných škol velmi dobrý zvuk. Založena byla v roce 1949. Výuka probíhá v budově Ječná 30, která je v blízkosti stanice...

Visit spsejecna.cz

Key Findings

We analyzed Spsejecna.cz page load time and found that the first response time was 312 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

spsejecna.cz performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value3.2 s

92/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

spsejecna.cz

312 ms

www.spsejecna.cz

364 ms

sprite-icon-1.6.css

106 ms

screen-1.21.css

210 ms

prettyPhoto.css

208 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 97% of them (35 requests) were addressed to the original Spsejecna.cz, 3% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Spsejecna.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 114.5 kB (17%)

Content Size

682.6 kB

After Optimization

568.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Spsejecna.cz main page is 682.6 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. 35% of websites need less resources to load. Images take 628.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.0 kB

  • Original 31.0 kB
  • After minification 24.9 kB
  • After compression 7.0 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 6.1 kB, which is 20% 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 24.0 kB or 77% of the original size.

Image Optimization

-14%

Potential reduce by 89.5 kB

  • Original 628.6 kB
  • After minification 539.1 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, Spsejecna needs image optimization as it can save up to 89.5 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 126 B

  • Original 6.5 kB
  • After minification 6.5 kB
  • After compression 6.4 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

-5%

Potential reduce by 808 B

  • Original 16.4 kB
  • After minification 16.4 kB
  • After compression 15.6 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. Spsejecna.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 3 (9%)

Requests Now

33

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spsejecna. 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

Accessibility Review

spsejecna.cz 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

Links do not have a discernible name

Best Practices

spsejecna.cz 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

spsejecna.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

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Spsejecna.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Spsejecna.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

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