Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

oxid.cz

Internet, online TV, mobilní služby | Nordic Telecom

Page Load Speed

5.1 sec in total

First Response

679 ms

Resources Loaded

3.7 sec

Page Rendered

707 ms

oxid.cz screenshot

About Website

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

Bez sekání. Bez starostí. Na zelenou. Poskytujeme pevný internet nebo třeba vychytanou IPTV. Objevte všechny naše telekomunikační služby.

Visit oxid.cz

Key Findings

We analyzed Oxid.cz page load time and found that the first response time was 679 ms and then it took 4.4 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

oxid.cz performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

www.nordictelecom.cz

679 ms

nordictelecom.cz

822 ms

main-d271a824c9821fc96c15.css

431 ms

api.js

33 ms

main-d271a824c9821fc96c15.bundle.js

976 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Oxid.cz, 3% (1 request) were made to Google.com and 3% (1 request) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Nordictelecom.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 311.5 kB (16%)

Content Size

1.9 MB

After Optimization

1.6 MB

In fact, the total size of Oxid.cz main page is 1.9 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 276.4 kB

  • Original 303.4 kB
  • After minification 291.2 kB
  • After compression 27.0 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 276.4 kB or 91% of the original size.

Image Optimization

-3%

Potential reduce by 34.0 kB

  • Original 1.3 MB
  • After minification 1.2 MB

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. Oxid images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 209.9 kB
  • After minification 209.9 kB
  • After compression 208.7 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.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 157.9 kB
  • After minification 157.9 kB
  • After compression 157.9 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. Oxid.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (13%)

Requests Now

31

After Optimization

27

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oxid. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

oxid.cz accessibility score

79

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

oxid.cz best practices score

83

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

oxid.cz SEO score

89

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 Oxid.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 Oxid.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 Oxid. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: