Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

zw.com.pl

Warszawa, Wiadomości z Warszawy - rp.pl - informacje o korkach, wypadkach i wydareniach w Warszawie | zyciewarszawy.pl

Page Load Speed

24 sec in total

First Response

487 ms

Resources Loaded

23.2 sec

Page Rendered

260 ms

zw.com.pl screenshot

About Website

Visit zw.com.pl now to see the best up-to-date Zw Com content and also check out these interesting facts you probably never knew about zw.com.pl

Warszawa | Stolica - wiadomości z Warszawy, informacje, wydarzenia, newsy. Raport na gorąco, wypadki, korki, komunikacja. Kultura, sztuka, eventy.

Visit zw.com.pl

Key Findings

We analyzed Zw.com.pl page load time and found that the first response time was 487 ms and then it took 23.5 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. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zw.com.pl performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.073

96/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

zw.com.pl

487 ms

glowna_nowa.css

232 ms

zw_common.css

329 ms

prototype.js

332 ms

zw_common.js

330 ms

Our browser made a total of 188 requests to load all elements on the main page. We found that 14% of them (27 requests) were addressed to the original Zw.com.pl, 7% (14 requests) were made to Static.presspublica.pl and 6% (11 requests) were made to Rtb-csync.smartadserver.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Webservices.cafenews.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 944.4 kB (59%)

Content Size

1.6 MB

After Optimization

665.9 kB

In fact, the total size of Zw.com.pl main page is 1.6 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. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 91.3 kB

  • Original 104.0 kB
  • After minification 65.0 kB
  • After compression 12.7 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. This page needs HTML code to be minified as it can gain 39.0 kB, which is 38% 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 91.3 kB or 88% of the original size.

Image Optimization

-3%

Potential reduce by 9.1 kB

  • Original 293.6 kB
  • After minification 284.6 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. Zw Com images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 757.3 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 353.3 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 757.3 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 86.7 kB

  • Original 102.1 kB
  • After minification 78.2 kB
  • After compression 15.3 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. Zw.com.pl needs all CSS files to be minified and compressed as it can save up to 86.7 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 126 (73%)

Requests Now

172

After Optimization

46

The browser has sent 172 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zw Com. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 58 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zw.com.pl accessibility score

43

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

zw.com.pl best practices score

50

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

Displays images with incorrect aspect ratio

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

zw.com.pl SEO score

62

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zw.com.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Zw.com.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 data is detected on the main page of Zw Com. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: