Tools & Wizards About Us
bigduo.pl screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

bigduo.pl

Informacja Gospodarcza Informacja Medyczna Informacja Telefoniczna BIG-DUO Częstochowa 19434 19439

Page Load Speed

5.2 sec in total

First Response

363 ms

Resources Loaded

4.4 sec

Page Rendered

450 ms

bigduo.pl screenshot

About Website

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

Informacja Gospodarcza BIG DUO Częstochowa ogólopolska informacja telefoniczna i medyczna tel. 34 19439,baza danych firm i produktów,

Visit bigduo.pl

Key Findings

We analyzed Bigduo.pl page load time and found that the first response time was 363 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

bigduo.pl performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.233

53/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

Network Requests Diagram

bigduo.pl

363 ms

www.bigduo.pl

1885 ms

rom.css

354 ms

szukaj.css

366 ms

baner.css

244 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 63% of them (53 requests) were addressed to the original Bigduo.pl, 10% (8 requests) were made to Pagead2.googlesyndication.com and 8% (7 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Bigduo.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (51%)

Content Size

2.3 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bigduo.pl main page is 2.3 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. 50% of websites need less resources to load. Javascripts take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 66.4 kB

  • Original 83.0 kB
  • After minification 65.5 kB
  • After compression 16.6 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 17.5 kB, which is 21% 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 66.4 kB or 80% of the original size.

Image Optimization

-21%

Potential reduce by 125.1 kB

  • Original 602.4 kB
  • After minification 477.3 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, BIG DUO needs image optimization as it can save up to 125.1 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 989.2 kB

  • Original 1.6 MB
  • After minification 1.2 MB
  • After compression 639.8 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 989.2 kB or 61% of the original size.

CSS Optimization

-76%

Potential reduce by 13.0 kB

  • Original 17.1 kB
  • After minification 12.9 kB
  • After compression 4.1 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. Bigduo.pl needs all CSS files to be minified and compressed as it can save up to 13.0 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (50%)

Requests Now

80

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BIG DUO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bigduo.pl

bigduo.pl

363 ms

www.bigduo.pl

www.bigduo.pl

1885 ms

rom.css

rom.css

354 ms

szukaj.css

szukaj.css

366 ms

baner.css

baner.css

244 ms

deltim.css

deltim.css

243 ms

dzwig.css

dzwig.css

248 ms

bsystem.css

bsystem.css

363 ms

ascendo.css

ascendo.css

364 ms

pacak.css

pacak.css

368 ms

jquery-1.10.2.js

jquery-1.10.2.js

1415 ms

jquery-2.1.0.js

jquery-2.1.0.js

1468 ms

jquery-ui-1.10.4.custom.js

jquery-ui-1.10.4.custom.js

1910 ms

skrypt.js

skrypt.js

485 ms

zapisz_kessel.js

zapisz_kessel.js

121 ms

szereg.js

szereg.js

122 ms

bsystem.js

bsystem.js

124 ms

anoda.js

anoda.js

122 ms

show_ads.js

show_ads.js

69 ms

icon

icon

38 ms

naw.css

naw.css

122 ms

js

js

77 ms

tlo.gif

tlo.gif

153 ms

a1.jpg

a1.jpg

149 ms

a2.jpg

a2.jpg

476 ms

p_1.gif

p_1.gif

305 ms

p_2.gif

p_2.gif

146 ms

p_3.gif

p_3.gif

148 ms

p_4.gif

p_4.gif

299 ms

p_5.gif

p_5.gif

304 ms

inf.gif

inf.gif

304 ms

19434.jpg

19434.jpg

305 ms

19439.jpg

19439.jpg

469 ms

kursy_usd.gif

kursy_usd.gif

425 ms

kursy_eur.gif

kursy_eur.gif

426 ms

kursy_chf.jpg

kursy_chf.jpg

423 ms

kursy_gbp.gif

kursy_gbp.gif

424 ms

evopress1.png

evopress1.png

594 ms

pacak.jpg

pacak.jpg

670 ms

deltim_tlo_1.jpg

deltim_tlo_1.jpg

664 ms

kessel.jpg

kessel.jpg

1149 ms

czarny_las.gif

czarny_las.gif

642 ms

semex.jpg

semex.jpg

501 ms

19434_2.png

19434_2.png

559 ms

19439_2.png

19439_2.png

558 ms

epodlasie.gif

epodlasie.gif

623 ms

coit.jpg

coit.jpg

670 ms

lublin.jpg

lublin.jpg

677 ms

rbitrz1.jpg

rbitrz1.jpg

741 ms

renado.gif

renado.gif

745 ms

rf1.gif

rf1.gif

869 ms

oig.gif

oig.gif

788 ms

biglog3a.gif

biglog3a.gif

795 ms

szeregowki.jpg

szeregowki.jpg

1367 ms

logo_04.png

logo_04.png

969 ms

anoda_aku.png

anoda_aku.png

1122 ms

adsbygoogle.js

adsbygoogle.js

158 ms

tlo_d.gif

tlo_d.gif

882 ms

stopka.jpg

stopka.jpg

1079 ms

analytics.js

analytics.js

60 ms

collect

collect

84 ms

show_ads_impl.js

show_ads_impl.js

246 ms

collect

collect

12 ms

ga-audiences

ga-audiences

79 ms

zrt_lookup.html

zrt_lookup.html

52 ms

ads

ads

526 ms

ads

ads

400 ms

reactive_library.js

reactive_library.js

141 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

38 ms

load_preloaded_resource.js

load_preloaded_resource.js

33 ms

icon.png

icon.png

9 ms

abg_lite.js

abg_lite.js

30 ms

window_focus.js

window_focus.js

37 ms

qs_click_protection.js

qs_click_protection.js

37 ms

ufs_web_display.js

ufs_web_display.js

17 ms

bbae3fd3506d8d9338f85d10ea9db8af.js

bbae3fd3506d8d9338f85d10ea9db8af.js

147 ms

8741269557722925928

8741269557722925928

144 ms

css

css

23 ms

sodar

sodar

158 ms

activeview

activeview

128 ms

sa30O7WeJNzu8x7oKdCcujxNj08-gvZudrea3FT7Uzc.js

sa30O7WeJNzu8x7oKdCcujxNj08-gvZudrea3FT7Uzc.js

14 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

127 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

134 ms

sodar2.js

sodar2.js

16 ms

Accessibility Review

bigduo.pl accessibility score

70

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

bigduo.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

High

Page has valid source maps

SEO Factors

bigduo.pl SEO score

69

Search Engine Optimization Advices

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

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bigduo.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 Bigduo.pl main page’s claimed encoding is iso-8859-2. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

bigduo.pl

Open Graph description is not detected on the main page of BIG DUO. 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: