Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

jinak.cz

JINAK.CZ - v?echno je jinak

Page Load Speed

1.6 sec in total

First Response

371 ms

Resources Loaded

1 sec

Page Rendered

137 ms

jinak.cz screenshot

About Website

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

JINAK.CZ je server, kter? nab?z? student?m, um?lc?m a n?kter?m zaj?mav?m projekt?m prostor pro jejich prezentaci.

Visit jinak.cz

Key Findings

We analyzed Jinak.cz page load time and found that the first response time was 371 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jinak.cz performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

84/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value32,380 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value41.3 s

0/100

10%

Network Requests Diagram

jinak.cz

371 ms

fonti.css

238 ms

adsbygoogle.js

8 ms

ca-pub-7503136952095110.js

53 ms

zrt_lookup.html

75 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 15% of them (2 requests) were addressed to the original Jinak.cz, 31% (4 requests) were made to Pagead2.googlesyndication.com and 23% (3 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (371 ms) belongs to the original domain Jinak.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 6.1 kB (7%)

Content Size

88.8 kB

After Optimization

82.8 kB

In fact, the total size of Jinak.cz main page is 88.8 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. 25% of websites need less resources to load. Javascripts take 79.9 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 4.7 kB

  • Original 7.4 kB
  • After minification 7.2 kB
  • After compression 2.6 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 4.7 kB or 64% of the original size.

JavaScript Optimization

-0%

Potential reduce by 203 B

  • Original 79.9 kB
  • After minification 79.8 kB
  • After compression 79.7 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

-73%

Potential reduce by 1.2 kB

  • Original 1.6 kB
  • After minification 1.3 kB
  • After compression 432 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. Jinak.cz needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (33%)

Requests Now

12

After Optimization

8

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JINAK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

jinak.cz accessibility score

74

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-*] attributes do not match their roles

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

<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

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

jinak.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

jinak.cz SEO score

67

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Jinak.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 Jinak.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 JINAK. 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: