Tools & Wizards About Us
portal.sirava.cz screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

portal.sirava.cz

SŠGS, Přerov, Šířava 7 - portál pro podporu výuky

Page Load Speed

2.2 sec in total

First Response

718 ms

Resources Loaded

1.3 sec

Page Rendered

150 ms

portal.sirava.cz screenshot

About Website

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

Visit portal.sirava.cz

Key Findings

We analyzed Portal.sirava.cz page load time and found that the first response time was 718 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

portal.sirava.cz performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

portal.sirava.cz

718 ms

portal2.css

110 ms

background1.png

466 ms

but_baka_2.png

324 ms

but_moodle1_2.png

217 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Portal.sirava.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (718 ms) belongs to the original domain Portal.sirava.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.6 kB (23%)

Content Size

51.0 kB

After Optimization

39.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Portal.sirava.cz main page is 51.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 47.8 kB which makes up the majority of the site volume.

HTML Optimization

-58%

Potential reduce by 1.4 kB

  • Original 2.5 kB
  • After minification 2.4 kB
  • After compression 1.1 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 1.4 kB or 58% of the original size.

Image Optimization

-21%

Potential reduce by 9.8 kB

  • Original 47.8 kB
  • After minification 38.0 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, Portal Sirava needs image optimization as it can save up to 9.8 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-54%

Potential reduce by 362 B

  • Original 665 B
  • After minification 514 B
  • After compression 303 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. Portal.sirava.cz needs all CSS files to be minified and compressed as it can save up to 362 B or 54% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Portal Sirava. According to our analytics all requests are already optimized.

Network Requests Diagram

portal.sirava.cz

portal.sirava.cz

718 ms

portal2.css

portal2.css

110 ms

background1.png

background1.png

466 ms

but_baka_2.png

but_baka_2.png

324 ms

but_moodle1_2.png

but_moodle1_2.png

217 ms

but_moodle2_2.png

but_moodle2_2.png

216 ms

but_mail_2.png

but_mail_2.png

324 ms

but_data_2.png

but_data_2.png

338 ms

Accessibility Review

portal.sirava.cz accessibility score

91

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.

Best Practices

portal.sirava.cz 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

SEO Factors

portal.sirava.cz SEO score

64

Search Engine Optimization Advices

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 Portal.sirava.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 Portal.sirava.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

portal.sirava.cz

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