Tools & Wizards About Us
swistak-ksiazki.pl screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

swistak-ksiazki.pl

Świstak Książki - Podręczniki Nowe i Używane - Kiermasz - Lubin, Legnica, Głogów, Wałbrzych, Świdnica, Złotoryja, Nowa Sól, Dzierżoniów, Zielona Góra,...

Page Load Speed

1.5 sec in total

First Response

211 ms

Resources Loaded

1.1 sec

Page Rendered

131 ms

swistak-ksiazki.pl screenshot

About Website

Visit swistak-ksiazki.pl now to see the best up-to-date Swistak Ksiazki content and also check out these interesting facts you probably never knew about swistak-ksiazki.pl

Świstak Książki - Podręczniki Nowe i Używane - Kiermasz - Lubin, Legnica, Głogów, Wałbrzych, Świdnica, Złotoryja, Nowa Sól, Dzierżoniów, Zielona Góra, Leszno, Jelenia Góra, Żary, Żagań, Poznań

Visit swistak-ksiazki.pl

Key Findings

We analyzed Swistak-ksiazki.pl page load time and found that the first response time was 211 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

swistak-ksiazki.pl performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value190 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

swistak-ksiazki.pl

211 ms

main.css

83 ms

lytebox.js

166 ms

lytebox.css

164 ms

jquery.min.js

251 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 88% of them (21 requests) were addressed to the original Swistak-ksiazki.pl, 8% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (642 ms) belongs to the original domain Swistak-ksiazki.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 86.8 kB (9%)

Content Size

935.5 kB

After Optimization

848.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Swistak-ksiazki.pl main page is 935.5 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. 25% of websites need less resources to load. Images take 865.1 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 8.0 kB

  • Original 11.2 kB
  • After minification 10.1 kB
  • After compression 3.2 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 8.0 kB or 71% of the original size.

Image Optimization

-9%

Potential reduce by 76.0 kB

  • Original 865.1 kB
  • After minification 789.1 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. Swistak Ksiazki images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 2.4 kB

  • Original 55.4 kB
  • After minification 55.4 kB
  • After compression 53.0 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

-11%

Potential reduce by 406 B

  • Original 3.8 kB
  • After minification 3.8 kB
  • After compression 3.3 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. Swistak-ksiazki.pl needs all CSS files to be minified and compressed as it can save up to 406 B or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (26%)

Requests Now

23

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Swistak Ksiazki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

swistak-ksiazki.pl

swistak-ksiazki.pl

211 ms

main.css

main.css

83 ms

lytebox.js

lytebox.js

166 ms

lytebox.css

lytebox.css

164 ms

jquery.min.js

jquery.min.js

251 ms

menu.js

menu.js

167 ms

all_scripts.js

all_scripts.js

167 ms

fla.js

fla.js

167 ms

bg.jpg

bg.jpg

161 ms

swistak-shop.jpg

swistak-shop.jpg

410 ms

bg_submit.png

bg_submit.png

85 ms

logo.png

logo.png

84 ms

266_info.elblag.pl-26150-Uzywane-podreczniki-moga-ad.jpg

266_info.elblag.pl-26150-Uzywane-podreczniki-moga-ad.jpg

82 ms

263_powody-dla-ktorychy-nie-trawie-kurierow.jpg

263_powody-dla-ktorychy-nie-trawie-kurierow.jpg

83 ms

bg_middle.png

bg_middle.png

164 ms

swinka.png

swinka.png

243 ms

przesylka.png

przesylka.png

248 ms

doplaty.png

doplaty.png

168 ms

gry.jpg

gry.jpg

642 ms

bg_footer.jpg

bg_footer.jpg

246 ms

facebook.png

facebook.png

250 ms

analytics.js

analytics.js

20 ms

collect

collect

13 ms

js

js

64 ms

Accessibility Review

swistak-ksiazki.pl accessibility score

68

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

Form elements do not have associated labels

Best Practices

swistak-ksiazki.pl best practices score

58

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

SEO Factors

swistak-ksiazki.pl SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Swistak-ksiazki.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Swistak-ksiazki.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

swistak-ksiazki.pl

Open Graph description is not detected on the main page of Swistak Ksiazki. 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: