Tools & Wizards About Us
sms.t-zones.cz screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

sms.t-zones.cz

Spolehlivý operátor pro mobilní i pevné služby - T-Mobile.cz

Page Load Speed

52.9 sec in total

First Response

809 ms

Resources Loaded

51.7 sec

Page Rendered

418 ms

sms.t-zones.cz screenshot

About Website

Welcome to sms.t-zones.cz homepage info - get ready to check Sms T Zones best content right away, or after learning these important things about sms.t-zones.cz

U nás pořídíte tarifní řešení pro celou domácnost - neomezené volání, mobilní data, domácí internet i digitální TV. Výhodně v Magentě 1.

Visit sms.t-zones.cz

Key Findings

We analyzed Sms.t-zones.cz page load time and found that the first response time was 809 ms and then it took 52.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

sms.t-zones.cz performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.2 s

0/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value3,810 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value24.7 s

0/100

10%

Network Requests Diagram

osobni

809 ms

custom.css

941 ms

critical.css

1060 ms

cookies-blocker.min.js

527 ms

cookies-checker.min.js

534 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Sms.t-zones.cz, 22% (13 requests) were made to T-mobile.cz and 14% (8 requests) were made to Cdn.t-mobile.cz. The less responsive or slowest element that took the longest time to load (14 sec) relates to the external source Static2.t-mobile.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 594.2 kB (42%)

Content Size

1.4 MB

After Optimization

814.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sms.t-zones.cz main page is 1.4 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. 65% of websites need less resources to load. CSS take 636.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 147.6 kB

  • Original 181.7 kB
  • After minification 154.7 kB
  • After compression 34.2 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. This page needs HTML code to be minified as it can gain 27.0 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 147.6 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 1.6 kB

  • Original 240.5 kB
  • After minification 238.9 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. Sms T Zones images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 6.2 kB

  • Original 349.9 kB
  • After minification 349.9 kB
  • After compression 343.7 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

-69%

Potential reduce by 438.9 kB

  • Original 636.2 kB
  • After minification 630.0 kB
  • After compression 197.3 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. Sms.t-zones.cz needs all CSS files to be minified and compressed as it can save up to 438.9 kB or 69% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (79%)

Requests Now

52

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sms T Zones. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

osobni

osobni

809 ms

custom.css

custom.css

941 ms

critical.css

critical.css

1060 ms

cookies-blocker.min.js

cookies-blocker.min.js

527 ms

cookies-checker.min.js

cookies-checker.min.js

534 ms

jquery-1.11.2.js

jquery-1.11.2.js

1177 ms

libs.js

libs.js

1570 ms

barebone.jsp

barebone.jsp

11862 ms

lead-api.min.js

lead-api.min.js

536 ms

vue-axios.min.js

vue-axios.min.js

751 ms

polyfill-functions.js

polyfill-functions.js

1261 ms

ajaxUI.js

ajaxUI.js

1261 ms

main.js

main.js

11490 ms

navigation.js

navigation.js

1294 ms

custom-child.css

custom-child.css

1337 ms

lcp-style.css

lcp-style.css

162 ms

lcp-script.js

lcp-script.js

275 ms

lcp-float-style.css

lcp-float-style.css

331 ms

lcp-float-script.js

lcp-float-script.js

286 ms

portletStore.js

portletStore.js

11266 ms

minicart.js

minicart.js

1227 ms

ext.js

ext.js

1261 ms

main.js

main.js

1344 ms

main.js

main.js

1379 ms

main.js

main.js

1462 ms

upload.js

upload.js

1497 ms

main.js

main.js

1538 ms

main-child.js

main-child.js

1226 ms

useberryScript.js

useberryScript.js

491 ms

gtm.js

gtm.js

148 ms

Samsung-Galaxy-A05s-64GB-cerny-detail-big01.jpg

Samsung-Galaxy-A05s-64GB-cerny-detail-big01.jpg

406 ms

Xiaomi-Redmi-13C-5G-128GB-cerny-detail-big01.jpg

Xiaomi-Redmi-13C-5G-128GB-cerny-detail-big01.jpg

477 ms

Motorola-Moto-G54-5G-Power-Edition-tmavomodry-detail-big01.jpg

Motorola-Moto-G54-5G-Power-Edition-tmavomodry-detail-big01.jpg

407 ms

iPhone-13-SE-sedy-detail-big01.jpg

iPhone-13-SE-sedy-detail-big01.jpg

407 ms

iPhone_15_Plus_Pink-detail-big01.jpg

iPhone_15_Plus_Pink-detail-big01.jpg

776 ms

main.css

main.css

137 ms

teleneo-regular.woff

teleneo-regular.woff

137 ms

teleneo-regular.woff

teleneo-regular.woff

384 ms

teleneo-extrabold.woff

teleneo-extrabold.woff

384 ms

teleneo-extrabold.woff

teleneo-extrabold.woff

759 ms

teleneo-bold.woff

teleneo-bold.woff

377 ms

teleneo-bold.woff

teleneo-bold.woff

480 ms

vue.css

vue.css

249 ms

loadNumberOfItems

loadNumberOfItems

224 ms

12802 ms

osobni

osobni

131 ms

bounce

bounce

16 ms

sbounce

sbounce

19 ms

116 ms

available_languages.jsp

available_languages.jsp

121 ms

116 ms

main.css

main.css

120 ms

ext.css

ext.css

120 ms

main.css

main.css

120 ms

main.css

main.css

120 ms

main.css

main.css

9837 ms

main.css

main.css

130 ms

main.css

main.css

119 ms

main.css

main.css

13965 ms

Accessibility Review

sms.t-zones.cz accessibility score

61

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

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.

High

[aria-*] attributes do not have valid values

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

sms.t-zones.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sms.t-zones.cz SEO score

84

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 Sms.t-zones.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 Sms.t-zones.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

sms.t-zones.cz

Open Graph description is not detected on the main page of Sms T Zones. 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: