Tools & Wizards About Us

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

cerpadla-ivt.cz

Tepelná čerpadla IVT – švédská kvalita pro vaše pohodlí

Page Load Speed

3.8 sec in total

First Response

398 ms

Resources Loaded

3.2 sec

Page Rendered

190 ms

About Website

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

Pořiďte si tepelné čerpadlo od jedničky na trhu. IVT tepelná čerpadla za sebou mají už více než 20 000 instalací, díky tomu pomohou vybrat to nejvhodnější.

Visit cerpadla-ivt.cz

Key Findings

We analyzed Cerpadla-ivt.cz page load time and found that the first response time was 398 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

cerpadla-ivt.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

3/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0.275

44/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

cerpadla-ivt.cz

398 ms

www.cerpadla-ivt.cz

856 ms

jquery.fancybox.min.css

95 ms

jquery.fancybox-buttons.min.css

192 ms

jquery.fancybox-thumbs.min.css

285 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 70% of them (35 requests) were addressed to the original Cerpadla-ivt.cz, 10% (5 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (856 ms) belongs to the original domain Cerpadla-ivt.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.1 kB (7%)

Content Size

584.1 kB

After Optimization

542.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cerpadla-ivt.cz main page is 584.1 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. 55% of websites need less resources to load. Images take 478.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.1 kB

  • Original 28.5 kB
  • After minification 27.7 kB
  • After compression 7.3 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 21.1 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 19.8 kB

  • Original 478.3 kB
  • After minification 458.5 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. Cerpadla IVT images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.1 kB

  • Original 77.3 kB
  • After minification 77.3 kB
  • After compression 76.2 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 20 (50%)

Requests Now

40

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cerpadla IVT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

cerpadla-ivt.cz accessibility score

87

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 input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

cerpadla-ivt.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cerpadla-ivt.cz SEO score

82

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 doesn't use 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 Cerpadla-ivt.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 Cerpadla-ivt.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 Cerpadla IVT. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: