Report Summary

  • 17

    Performance

    Renders faster than
    36% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 82

    SEO

    Google-friendlier than
    52% of websites

poslatsms.cz

SMS ZDARMA - PoslatSMS.cz

Page Load Speed

2.5 sec in total

First Response

528 ms

Resources Loaded

1.8 sec

Page Rendered

151 ms

poslatsms.cz screenshot

About Website

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

SMS ZDARMA do všech sítí, bez omezení počtu znaků a bez opisování kódů. Odesílejte SMS zprávy zdarma jednoduše.

Visit poslatsms.cz

Key Findings

We analyzed Poslatsms.cz page load time and found that the first response time was 528 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

poslatsms.cz performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.5 s

0/100

25%

SI (Speed Index)

Value28.6 s

0/100

10%

TBT (Total Blocking Time)

Value2,070 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value18.9 s

3/100

10%

Network Requests Diagram

www.poslatsms.cz

528 ms

style.css

215 ms

conversion.js

45 ms

jquery.min.js

315 ms

ui.core.min.js

209 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 32% of them (9 requests) were addressed to the original Poslatsms.cz, 14% (4 requests) were made to Pagead2.googlesyndication.com and 14% (4 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (680 ms) relates to the external source Ssl.toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 201.8 kB (60%)

Content Size

334.8 kB

After Optimization

133.0 kB

In fact, the total size of Poslatsms.cz main page is 334.8 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. 30% of websites need less resources to load. Javascripts take 267.1 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 12.6 kB

  • Original 18.3 kB
  • After minification 16.6 kB
  • After compression 5.7 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 12.6 kB or 69% of the original size.

Image Optimization

-6%

Potential reduce by 319 B

  • Original 5.5 kB
  • After minification 5.2 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. PoslatSMS images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 152.7 kB

  • Original 267.1 kB
  • After minification 259.4 kB
  • After compression 114.4 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 152.7 kB or 57% of the original size.

CSS Optimization

-82%

Potential reduce by 36.1 kB

  • Original 43.9 kB
  • After minification 36.5 kB
  • After compression 7.7 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. Poslatsms.cz needs all CSS files to be minified and compressed as it can save up to 36.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (52%)

Requests Now

25

After Optimization

12

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PoslatSMS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

poslatsms.cz accessibility score

65

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

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

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

poslatsms.cz best practices score

83

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

SEO Factors

poslatsms.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

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 Poslatsms.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 Poslatsms.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 PoslatSMS. 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: