Tools & Wizards About Us
skyfly.cz screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

skyfly.cz

SkyFly - paragliding, hanggliding a ultralehké létání

Page Load Speed

3.1 sec in total

First Response

447 ms

Resources Loaded

2.5 sec

Page Rendered

85 ms

skyfly.cz screenshot

About Website

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

skyfly, počasí, adresář pilotů, inzerce, školy výuky létání, letiště, terény pro létání, soutěže, slety a srazy, fotogalerie, Paragliding, články, zprávy, vzkazy, Digifly, letadlo, inzerát, letectví, ...

Visit skyfly.cz

Key Findings

We analyzed Skyfly.cz page load time and found that the first response time was 447 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

skyfly.cz performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

56/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

skyfly.cz

447 ms

skyfly.cz

522 ms

style.css

122 ms

cookieconsent.js

725 ms

cookies-cz.js

726 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that all of those requests were addressed to Skyfly.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (823 ms) belongs to the original domain Skyfly.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.3 kB (30%)

Content Size

54.3 kB

After Optimization

38.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Skyfly.cz main page is 54.3 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. Javascripts take 25.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 15.8 kB

  • Original 19.9 kB
  • After minification 16.3 kB
  • After compression 4.1 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. This page needs HTML code to be minified as it can gain 3.5 kB, which is 18% 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 15.8 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 7.1 kB
  • After minification 7.1 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. Sky Fly images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 117 B

  • Original 25.2 kB
  • After minification 25.2 kB
  • After compression 25.0 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

-14%

Potential reduce by 321 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 1.9 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. Skyfly.cz needs all CSS files to be minified and compressed as it can save up to 321 B or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (48%)

Requests Now

23

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sky Fly. 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

skyfly.cz

skyfly.cz

447 ms

skyfly.cz

skyfly.cz

522 ms

style.css

style.css

122 ms

cookieconsent.js

cookieconsent.js

725 ms

cookies-cz.js

cookies-cz.js

726 ms

cloudsbg.jpg

cloudsbg.jpg

121 ms

emp.gif

emp.gif

237 ms

graf1.gif

graf1.gif

356 ms

mobil1.gif

mobil1.gif

360 ms

fotak1.gif

fotak1.gif

360 ms

pg_mac08a.gif

pg_mac08a.gif

361 ms

ulla.gif

ulla.gif

362 ms

skyfly.gif

skyfly.gif

362 ms

ulli.gif

ulli.gif

476 ms

hg.gif

hg.gif

478 ms

sipkal11.gif

sipkal11.gif

479 ms

sipkar12.gif

sipkar12.gif

480 ms

sipkal13.gif

sipkal13.gif

481 ms

sipkal15.gif

sipkal15.gif

481 ms

sipkar10.gif

sipkar10.gif

595 ms

sipkar14.gif

sipkar14.gif

598 ms

flag_e.gif

flag_e.gif

599 ms

mailik.gif

mailik.gif

598 ms

rukav1.gif

rukav1.gif

600 ms

counter.php3

counter.php3

604 ms

piwik.js

piwik.js

823 ms

Accessibility Review

skyfly.cz accessibility score

93

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

Links do not have a discernible name

Best Practices

skyfly.cz best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

skyfly.cz SEO score

77

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 Skyfly.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 Skyfly.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

skyfly.cz

Open Graph description is not detected on the main page of Sky Fly. 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: