Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

obalcentrum.cz

E-shop a velkoobchod s obaly | Obal Centrum

Page Load Speed

30 sec in total

First Response

1.2 sec

Resources Loaded

15.9 sec

Page Rendered

13 sec

obalcentrum.cz screenshot

About Website

Visit obalcentrum.cz now to see the best up-to-date Obal Centrum content for Czech Republic and also check out these interesting facts you probably never knew about obalcentrum.cz

Nakupte za skvělou cenu obaly na cokoliv. Máme pro vás IBC, sudy, kanystry, lahve a mnoho dalšího.

Visit obalcentrum.cz

Key Findings

We analyzed Obalcentrum.cz page load time and found that the first response time was 1.2 sec and then it took 28.8 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

obalcentrum.cz performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

1/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value980 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value11.7 s

18/100

10%

Network Requests Diagram

www.obalcentrum.cz

1195 ms

hlmrf.css

391 ms

hlmrf.css

516 ms

cookieconsent.latest.min.js

327 ms

retargeting.js

2317 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 54% of them (34 requests) were addressed to the original Obalcentrum.cz, 8% (5 requests) were made to Static.xx.fbcdn.net and 8% (5 requests) were made to Scontent-iad3-1.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (6.6 sec) relates to the external source Heureka.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 597.1 kB (45%)

Content Size

1.3 MB

After Optimization

740.8 kB

In fact, the total size of Obalcentrum.cz main page is 1.3 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. 60% of websites need less resources to load. Images take 554.0 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 224.7 kB

  • Original 319.3 kB
  • After minification 308.0 kB
  • After compression 94.6 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 224.7 kB or 70% of the original size.

Image Optimization

-10%

Potential reduce by 54.2 kB

  • Original 554.0 kB
  • After minification 499.8 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. Obal Centrum images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 228.7 kB

  • Original 370.1 kB
  • After minification 363.3 kB
  • After compression 141.4 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 228.7 kB or 62% of the original size.

CSS Optimization

-95%

Potential reduce by 89.5 kB

  • Original 94.6 kB
  • After minification 23.7 kB
  • After compression 5.0 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. Obalcentrum.cz needs all CSS files to be minified and compressed as it can save up to 89.5 kB or 95% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (30%)

Requests Now

57

After Optimization

40

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Obal Centrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

obalcentrum.cz accessibility score

89

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

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

High

Links do not have a discernible name

Best Practices

obalcentrum.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

obalcentrum.cz SEO score

92

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

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 Obalcentrum.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 Obalcentrum.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 description is not detected on the main page of Obal Centrum. 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: