Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

prestadev.pl

PrestaShop modules, integrations and online stores

Page Load Speed

4.2 sec in total

First Response

868 ms

Resources Loaded

3.1 sec

Page Rendered

211 ms

prestadev.pl screenshot

About Website

Welcome to prestadev.pl homepage info - get ready to check Presta Dev best content for Poland right away, or after learning these important things about prestadev.pl

Modules, integrations and online stores based on PrestaShop.

Visit prestadev.pl

Key Findings

We analyzed Prestadev.pl page load time and found that the first response time was 868 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

prestadev.pl performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value16,630 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.414

23/100

15%

TTI (Time to Interactive)

Value24.6 s

0/100

10%

Network Requests Diagram

868 ms

2436175bdcb0aeb827cc5a1a63dbf0c4_all.css

435 ms

f7bc442e3f91d9a4324d6094f0041a6e.js

569 ms

element.js

50 ms

analytics.js

37 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 7% of them (6 requests) were addressed to the original Prestadev.pl, 26% (23 requests) were made to Cdn3.prestadev.pl and 25% (22 requests) were made to Cdn2.prestadev.pl. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Transferuj.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 356.9 kB (49%)

Content Size

726.4 kB

After Optimization

369.6 kB

In fact, the total size of Prestadev.pl main page is 726.4 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. 40% of websites need less resources to load. Javascripts take 348.2 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 69.4 kB

  • Original 85.6 kB
  • After minification 79.6 kB
  • After compression 16.2 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 69.4 kB or 81% of the original size.

Image Optimization

-15%

Potential reduce by 28.5 kB

  • Original 196.5 kB
  • After minification 168.0 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. Obviously, Presta Dev needs image optimization as it can save up to 28.5 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-52%

Potential reduce by 181.7 kB

  • Original 348.2 kB
  • After minification 348.2 kB
  • After compression 166.5 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 181.7 kB or 52% of the original size.

CSS Optimization

-80%

Potential reduce by 77.2 kB

  • Original 96.2 kB
  • After minification 93.0 kB
  • After compression 18.9 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. Prestadev.pl needs all CSS files to be minified and compressed as it can save up to 77.2 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (35%)

Requests Now

88

After Optimization

57

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Presta Dev. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

prestadev.pl accessibility score

81

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-hidden="true"] elements contain focusable descendents

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

prestadev.pl best practices score

75

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

Missing source maps for large first-party JavaScript

SEO Factors

prestadev.pl 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

    EN

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prestadev.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Polish language. Our system also found out that Prestadev.pl 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 Presta Dev. 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: