Report Summary

  • 0

    Performance

  • 33

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

cja.upol.cz

Centrum pro výuku cizích jazyků

Page Load Speed

5.9 sec in total

First Response

1.9 sec

Resources Loaded

3.5 sec

Page Rendered

435 ms

cja.upol.cz screenshot

About Website

Welcome to cja.upol.cz homepage info - get ready to check Cja Upol best content for Czech Republic right away, or after learning these important things about cja.upol.cz

Hlavní webové stránky Lékařské fakulty Univerzity Palackého v Olomouci

Visit cja.upol.cz

Key Findings

We analyzed Cja.upol.cz page load time and found that the first response time was 1.9 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

cja.upol.cz performance score

0

Network Requests Diagram

cja.upol.cz

1945 ms

navbar_ver.html

132 ms

domu.htm

258 ms

count.asp

307 ms

navbar_ver_B1.gif

128 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 98% of them (54 requests) were addressed to the original Cja.upol.cz, 2% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Cja.upol.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.7 kB (10%)

Content Size

48.1 kB

After Optimization

43.5 kB

In fact, the total size of Cja.upol.cz main page is 48.1 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. 15% of websites need less resources to load. Images take 47.5 kB which makes up the majority of the site volume.

HTML Optimization

-42%

Potential reduce by 290 B

  • Original 695 B
  • After minification 658 B
  • After compression 405 B

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 290 B or 42% of the original size.

Image Optimization

-9%

Potential reduce by 4.4 kB

  • Original 47.5 kB
  • After minification 43.1 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. Cja Upol images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 18 (33%)

Requests Now

54

After Optimization

36

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cja Upol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

cja.upol.cz accessibility score

33

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

<frame> or <iframe> elements do not have a title

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

cja.upol.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

cja.upol.cz SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cja.upol.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 Cja.upol.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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