Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

spotreby.cz

Spotřeby.cz - výpočet spotřeby paliva auta, ceny benzínu, nafty a LPG na čerpacích stanicích

Page Load Speed

5.3 sec in total

First Response

535 ms

Resources Loaded

4.7 sec

Page Rendered

151 ms

spotreby.cz screenshot

About Website

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

Spotřeba paliva a náklady na provoz vašeho vozidla, výpočty, statistiky, seznam spotřeby paliva automobilů a cenová mapa benzínu, nafty a LPG.

Visit spotreby.cz

Key Findings

We analyzed Spotreby.cz page load time and found that the first response time was 535 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

spotreby.cz performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value2,280 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.835

4/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

spotreby.cz

535 ms

www.spotreby.cz

1127 ms

style.css

532 ms

jquery-1.7.1.min.js

741 ms

jquery-ui.min.js

856 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 64% of them (77 requests) were addressed to the original Spotreby.cz, 5% (6 requests) were made to Tpc.googlesyndication.com and 5% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Spotreby.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 440.6 kB (32%)

Content Size

1.4 MB

After Optimization

931.9 kB

In fact, the total size of Spotreby.cz main page is 1.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 877.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 39.7 kB

  • Original 51.3 kB
  • After minification 47.4 kB
  • After compression 11.6 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 39.7 kB or 77% of the original size.

Image Optimization

-13%

Potential reduce by 47.1 kB

  • Original 371.0 kB
  • After minification 323.9 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, Spotreby needs image optimization as it can save up to 47.1 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-33%

Potential reduce by 292.9 kB

  • Original 877.7 kB
  • After minification 877.1 kB
  • After compression 584.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 292.9 kB or 33% of the original size.

CSS Optimization

-84%

Potential reduce by 60.9 kB

  • Original 72.5 kB
  • After minification 64.4 kB
  • After compression 11.6 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. Spotreby.cz needs all CSS files to be minified and compressed as it can save up to 60.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (42%)

Requests Now

114

After Optimization

66

The browser has sent 114 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spotreby. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

spotreby.cz accessibility score

88

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.

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

High

Links do not have a discernible name

Best Practices

spotreby.cz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

spotreby.cz SEO score

88

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

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Spotreby.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 Spotreby.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

Open Graph data is detected on the main page of Spotreby. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: