Tools & Wizards About Us
zarovka.cz screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

zarovka.cz

Požární technika a hasící přístroje - Žárovka s.r.o.

Page Load Speed

1.8 sec in total

First Response

564 ms

Resources Loaded

963 ms

Page Rendered

277 ms

zarovka.cz screenshot

About Website

Click here to check amazing Zarovka content. Otherwise, check out these important facts you probably never knew about zarovka.cz

Prodej, servis, revize a opravy prostředků požární ochrany - hasící přístroje, hydrantové systémy, požární vodovody

Visit zarovka.cz

Key Findings

We analyzed Zarovka.cz page load time and found that the first response time was 564 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

zarovka.cz performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value2.9 s

94/100

10%

TBT (Total Blocking Time)

Value600 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.333

34/100

15%

TTI (Time to Interactive)

Value6.2 s

61/100

10%

Network Requests Diagram

zarovka.cz

564 ms

adsbygoogle.js

120 ms

cse.js

475 ms

logo2.gif

482 ms

logo2a.gif

482 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 60% of them (3 requests) were addressed to the original Zarovka.cz, 20% (1 request) were made to Pagead2.googlesyndication.com and 20% (1 request) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (564 ms) belongs to the original domain Zarovka.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.7 kB (36%)

Content Size

7.4 kB

After Optimization

4.8 kB

  • HTML
  • JavaScript

In fact, the total size of Zarovka.cz main page is 7.4 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 10% of websites need less resources to load. HTML takes 3.7 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 2.6 kB

  • Original 3.7 kB
  • After minification 3.6 kB
  • After compression 1.2 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 69% of the original size.

JavaScript Optimization

-3%

Potential reduce by 108 B

  • Original 3.7 kB
  • After minification 3.7 kB
  • After compression 3.6 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

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zarovka. According to our analytics all requests are already optimized.

Network Requests Diagram

zarovka.cz

zarovka.cz

564 ms

adsbygoogle.js

adsbygoogle.js

120 ms

cse.js

cse.js

475 ms

logo2.gif

logo2.gif

482 ms

logo2a.gif

logo2a.gif

482 ms

Accessibility Review

zarovka.cz accessibility score

84

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-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

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

zarovka.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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

zarovka.cz SEO score

67

Search Engine Optimization Advices

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 Zarovka.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 Zarovka.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

zarovka.cz

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