Report Summary

  • 60

    Performance

    Renders faster than
    76% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

Page Load Speed

4.6 sec in total

First Response

325 ms

Resources Loaded

4.1 sec

Page Rendered

146 ms

inzertia.cz screenshot

About Website

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

Profesionální řešení internetové reklamy. Vyzkoušejte nejlevnější textovou i bannerovou internetovou reklamu.

Visit inzertia.cz

Key Findings

We analyzed Inzertia.cz page load time and found that the first response time was 325 ms and then it took 4.2 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

inzertia.cz performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

inzertia.cz

325 ms

www.inzertia.cz

891 ms

styles.css

130 ms

javascripts.js

712 ms

FusionCharts.js

722 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 73% of them (11 requests) were addressed to the original Inzertia.cz, 20% (3 requests) were made to Webator.cz and 7% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (891 ms) belongs to the original domain Inzertia.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.6 kB (20%)

Content Size

149.2 kB

After Optimization

118.7 kB

In fact, the total size of Inzertia.cz main page is 149.2 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. Only 5% of websites need less resources to load. Images take 113.4 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 6.9 kB

  • Original 10.5 kB
  • After minification 10.4 kB
  • After compression 3.6 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 6.9 kB or 66% of the original size.

Image Optimization

-3%

Potential reduce by 3.6 kB

  • Original 113.4 kB
  • After minification 109.8 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. Inzertia images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 15.7 kB

  • Original 19.9 kB
  • After minification 13.8 kB
  • After compression 4.2 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 15.7 kB or 79% of the original size.

CSS Optimization

-79%

Potential reduce by 4.3 kB

  • Original 5.5 kB
  • After minification 4.5 kB
  • After compression 1.2 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. Inzertia.cz needs all CSS files to be minified and compressed as it can save up to 4.3 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

13

After Optimization

13

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Inzertia. According to our analytics all requests are already optimized.

Accessibility Review

inzertia.cz accessibility score

84

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

Document doesn't have a <title> element

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

Best Practices

inzertia.cz best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

inzertia.cz SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Document doesn't have a <title> element

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Inzertia.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 Inzertia.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 Inzertia. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: