Tools & Wizards About Us
bobo.cz screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

bobo.cz

Rodinné blokařství | BOBO BLOK

Page Load Speed

18.4 sec in total

First Response

519 ms

Resources Loaded

11 sec

Page Rendered

6.9 sec

bobo.cz screenshot

About Website

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

Největší výběr poznámkových bloků, skicáků a školních sešitů pro Vaše zápisky.

Visit bobo.cz

Key Findings

We analyzed Bobo.cz page load time and found that the first response time was 519 ms and then it took 17.9 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.

Performance Metrics

bobo.cz performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value21.6 s

0/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value2,010 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.106

88/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

bobo.cz

519 ms

bobo.cz

635 ms

all.css

461 ms

custom.css

333 ms

cookieconsent.css

36 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that 69% of them (77 requests) were addressed to the original Bobo.cz, 4% (4 requests) were made to Google.com and 4% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (7.6 sec) belongs to the original domain Bobo.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 344.1 kB (2%)

Content Size

15.5 MB

After Optimization

15.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bobo.cz main page is 15.5 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. 70% of websites need less resources to load. Images take 14.8 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 139.1 kB

  • Original 167.8 kB
  • After minification 167.4 kB
  • After compression 28.7 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 139.1 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 169.7 kB

  • Original 14.8 MB
  • After minification 14.6 MB

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. BOBO images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 34.8 kB

  • Original 506.0 kB
  • After minification 506.0 kB
  • After compression 471.2 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

-1%

Potential reduce by 540 B

  • Original 40.0 kB
  • After minification 40.0 kB
  • After compression 39.4 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. Bobo.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (23%)

Requests Now

106

After Optimization

82

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BOBO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bobo.cz

bobo.cz

519 ms

bobo.cz

bobo.cz

635 ms

all.css

all.css

461 ms

custom.css

custom.css

333 ms

cookieconsent.css

cookieconsent.css

36 ms

colorbox.css

colorbox.css

50 ms

team.css

team.css

345 ms

js

js

84 ms

recaptcha.js

recaptcha.js

342 ms

all.js

all.js

705 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

35 ms

webfont.js

webfont.js

36 ms

packetaWidget.js

packetaWidget.js

304 ms

cookieconsent.js

cookieconsent.js

18 ms

tracker.js

tracker.js

582 ms

gtm.js

gtm.js

180 ms

v2.zopim.com

v2.zopim.com

211 ms

api.js

api.js

285 ms

fbevents.js

fbevents.js

211 ms

logo.png

logo.png

494 ms

cart.svg

cart.svg

492 ms

czk.png

czk.png

493 ms

icon-down.png

icon-down.png

491 ms

notebook2.png

notebook2.png

721 ms

zapisniky_hp1.png

zapisniky_hp1.png

1591 ms

HP_podbannery_skicaky.jpg

HP_podbannery_skicaky.jpg

1219 ms

bg-overlay.png

bg-overlay.png

810 ms

HP_podbannery_zapisniky.jpg

HP_podbannery_zapisniky.jpg

1030 ms

foto_hp_bobo_3.jpg

foto_hp_bobo_3.jpg

3457 ms

vo.jpg

vo.jpg

1307 ms

zv.jpg

zv.jpg

1304 ms

spiral.png

spiral.png

1366 ms

30535.jpg

30535.jpg

2014 ms

30535_001.jpg

30535_001.jpg

2401 ms

24923.jpg

24923.jpg

2185 ms

24923_001.jpg

24923_001.jpg

2024 ms

28624.jpg

28624.jpg

3567 ms

28624_001.jpg

28624_001.jpg

4073 ms

vlastni_obalka.svg

vlastni_obalka.svg

2354 ms

29898.jpg

29898.jpg

3174 ms

29898_001.jpg

29898_001.jpg

3232 ms

19684.jpg

19684.jpg

3822 ms

19684_001.jpg

19684_001.jpg

3945 ms

26774.jpg

26774.jpg

4224 ms

26774_001.jpg

26774_001.jpg

3981 ms

29430.jpg

29430.jpg

5208 ms

29430_001.jpg

29430_001.jpg

5838 ms

26989.jpg

26989.jpg

5154 ms

26989_001.jpg

26989_001.jpg

4532 ms

31563.jpg

31563.jpg

4958 ms

31563_001.jpg

31563_001.jpg

4884 ms

novinka.svg

novinka.svg

4863 ms

31532.jpg

31532.jpg

6290 ms

31532_001.jpg

31532_001.jpg

5458 ms

asset_composer.js

asset_composer.js

285 ms

recaptcha__de.js

recaptcha__de.js

111 ms

retargeting.js

retargeting.js

759 ms

gjs.php

gjs.php

564 ms

css

css

124 ms

31501.jpg

31501.jpg

5998 ms

31501_001.jpg

31501_001.jpg

5658 ms

31464.jpg

31464.jpg

6798 ms

31464_001.jpg

31464_001.jpg

5936 ms

31433.jpg

31433.jpg

7434 ms

font

font

23 ms

font

font

110 ms

31433_001.jpg

31433_001.jpg

6308 ms

31402.jpg

31402.jpg

7565 ms

31402_001.jpg

31402_001.jpg

6018 ms

webtracking.min.js

webtracking.min.js

132 ms

overlay.png

overlay.png

37 ms

analytics.js

analytics.js

32 ms

destination

destination

53 ms

29232.jpg

29232.jpg

5980 ms

fallback

fallback

76 ms

collect

collect

55 ms

49 ms

fallback__ltr.css

fallback__ltr.css

12 ms

29232_001.jpg

29232_001.jpg

6385 ms

collect

collect

14 ms

29225.jpg

29225.jpg

6835 ms

css

css

19 ms

ga-audiences

ga-audiences

63 ms

logo_48.png

logo_48.png

9 ms

font

font

4 ms

21 ms

29225_001.jpg

29225_001.jpg

6494 ms

mc.png

mc.png

6140 ms

tracking.smartemailing.cz

tracking.smartemailing.cz

253 ms

mc2.png

mc2.png

6114 ms

mc3.png

mc3.png

6036 ms

visa.png

visa.png

6004 ms

visa2.png

visa2.png

5899 ms

visa3.png

visa3.png

5991 ms

icon1.png

icon1.png

5284 ms

icon2.png

icon2.png

5240 ms

icon3.png

icon3.png

5058 ms

icon4.png

icon4.png

5018 ms

bg-napsalionas.jpg

bg-napsalionas.jpg

4990 ms

w287h250_2024-05-20-04-17-04-DSC6923-kopie.jpeg

w287h250_2024-05-20-04-17-04-DSC6923-kopie.jpeg

4993 ms

w287h250_2024-05-03-03-02-37-IMG-9990.jpeg

w287h250_2024-05-03-03-02-37-IMG-9990.jpeg

5137 ms

w287h250_2024-04-23-08-30-18-bobo-offline.jpeg

w287h250_2024-04-23-08-30-18-bobo-offline.jpeg

5056 ms

img0.jpg

img0.jpg

4845 ms

fb.png

fb.png

4383 ms

insta.png

insta.png

4277 ms

yt.png

yt.png

4359 ms

linkedin.png

linkedin.png

4308 ms

logo-footer.png

logo-footer.png

4244 ms

phone.png

phone.png

4240 ms

email.png

email.png

3913 ms

prev-next.png

prev-next.png

3633 ms

Accessibility Review

bobo.cz accessibility score

87

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 input fields do not have accessible names

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.

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

Links do not have a discernible name

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

bobo.cz 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bobo.cz SEO score

98

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bobo.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Bobo.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

bobo.cz

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