Tools & Wizards About Us

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

flesko.cz

Mirek Fle?ko - Index page

Page Load Speed

945 ms in total

First Response

290 ms

Resources Loaded

591 ms

Page Rendered

64 ms

About Website

Visit flesko.cz now to see the best up-to-date Fle S Ko content and also check out these interesting facts you probably never knew about flesko.cz

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Key Findings

We analyzed Flesko.cz page load time and found that the first response time was 290 ms and then it took 655 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

flesko.cz performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value3.2 s

91/100

10%

TBT (Total Blocking Time)

Value1,210 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

flesko.cz

290 ms

default.css

101 ms

adsbygoogle.js

51 ms

branding.css

9 ms

welcome.png

275 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 69% of them (9 requests) were addressed to the original Flesko.cz, 15% (2 requests) were made to Google.com and 8% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (290 ms) belongs to the original domain Flesko.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.9 kB (3%)

Content Size

91.8 kB

After Optimization

88.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Flesko.cz main page is 91.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 63.5 kB which makes up the majority of the site volume.

HTML Optimization

-56%

Potential reduce by 2.6 kB

  • Original 4.7 kB
  • After minification 4.5 kB
  • After compression 2.1 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 2.6 kB or 56% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 22.3 kB
  • After minification 22.3 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. Fle S Ko images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 11 B

  • Original 63.5 kB
  • After minification 63.5 kB
  • After compression 63.4 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

-23%

Potential reduce by 320 B

  • Original 1.4 kB
  • After minification 1.4 kB
  • After compression 1.1 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. Flesko.cz needs all CSS files to be minified and compressed as it can save up to 320 B or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (45%)

Requests Now

11

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Fle S Ko. 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.

Network Requests Diagram

Accessibility Review

flesko.cz accessibility score

72

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Form elements do not have associated labels

Best Practices

flesko.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

flesko.cz SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

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