Tools & Wizards About Us
riversideschool.cz screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    54% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 90% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

riversideschool.cz

Riverside International School in Prague - A unique international education in Prague

Page Load Speed

7.1 sec in total

First Response

1.9 sec

Resources Loaded

4.7 sec

Page Rendered

498 ms

riversideschool.cz screenshot

About Website

Click here to check amazing Riverside School content for Czech Republic. Otherwise, check out these important facts you probably never knew about riversideschool.cz

Riverside International School provides a unique international education in Prague

Visit riversideschool.cz

Key Findings

We analyzed Riversideschool.cz page load time and found that the first response time was 1.9 sec and then it took 5.2 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

riversideschool.cz performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0.04

99/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

www.riversideschool.cz

1898 ms

boilerplate.css

117 ms

style.css

226 ms

css

29 ms

validationEngine.jquery.css

212 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 77% of them (57 requests) were addressed to the original Riversideschool.cz, 5% (4 requests) were made to F.vimeocdn.com and 4% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Riversideschool.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 875.9 kB (20%)

Content Size

4.4 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Riversideschool.cz main page is 4.4 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 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 57.5 kB

  • Original 70.1 kB
  • After minification 68.4 kB
  • After compression 12.6 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. 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 57.5 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 109.1 kB

  • Original 3.3 MB
  • After minification 3.2 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. Riverside School images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 510.4 kB

  • Original 729.2 kB
  • After minification 686.7 kB
  • After compression 218.9 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 510.4 kB or 70% of the original size.

CSS Optimization

-87%

Potential reduce by 199.0 kB

  • Original 228.3 kB
  • After minification 198.8 kB
  • After compression 29.3 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. Riversideschool.cz needs all CSS files to be minified and compressed as it can save up to 199.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (34%)

Requests Now

70

After Optimization

46

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Riverside School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.riversideschool.cz

www.riversideschool.cz

1898 ms

boilerplate.css

boilerplate.css

117 ms

style.css

style.css

226 ms

css

css

29 ms

validationEngine.jquery.css

validationEngine.jquery.css

212 ms

jquery.tosrus.all.css

jquery.tosrus.all.css

249 ms

settings.css

settings.css

251 ms

jquery.sidr.light.css

jquery.sidr.light.css

248 ms

slick.css

slick.css

15 ms

jquery.min.js

jquery.min.js

7 ms

jquery.tosrus.min.all.js

jquery.tosrus.min.all.js

249 ms

front.js

front.js

319 ms

jquery.themepunch.tools.min.js

jquery.themepunch.tools.min.js

548 ms

jquery.themepunch.revolution.min.js

jquery.themepunch.revolution.min.js

454 ms

jquery.sidr.min.js

jquery.sidr.min.js

342 ms

slick.min.js

slick.min.js

16 ms

scripts.js

scripts.js

357 ms

wp-embed.min.js

wp-embed.min.js

348 ms

jquery.validationEngine-en.js

jquery.validationEngine-en.js

426 ms

jquery.validationEngine.js

jquery.validationEngine.js

578 ms

front-subscribers.js

front-subscribers.js

461 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

234 ms

analytics.js

analytics.js

12 ms

icon-twitter.svg

icon-twitter.svg

223 ms

icon-fb.svg

icon-fb.svg

222 ms

icon-youtube.svg

icon-youtube.svg

223 ms

icon-instagram.svg

icon-instagram.svg

220 ms

icon-360.svg

icon-360.svg

224 ms

logo-riverside.png

logo-riverside.png

262 ms

flag-cz.png

flag-cz.png

398 ms

homepage-1.jpg

homepage-1.jpg

821 ms

homepage-3.jpg

homepage-3.jpg

938 ms

SAM_0895.jpg

SAM_0895.jpg

958 ms

Paul-Pacey-Feb-2016-156-1.jpg

Paul-Pacey-Feb-2016-156-1.jpg

876 ms

homepage.jpg

homepage.jpg

713 ms

Riverside-March-2015_416c.jpg

Riverside-March-2015_416c.jpg

1123 ms

aerial-view.jpg

aerial-view.jpg

1059 ms

icon-fb.png

icon-fb.png

1005 ms

icon-twitter.png

icon-twitter.png

1005 ms

preloader.gif

preloader.gif

1054 ms

SH-Open-Day-March-2016-400x300.jpg

SH-Open-Day-March-2016-400x300.jpg

1076 ms

image-3-400x300.png

image-3-400x300.png

1128 ms

image-2-400x300.png

image-2-400x300.png

1129 ms

Lisbon-Tower-of-Belem-400x300.jpg

Lisbon-Tower-of-Belem-400x300.jpg

1195 ms

Tall-ships-2015-95-400x300.jpg

Tall-ships-2015-95-400x300.jpg

1193 ms

MUN-Conference-Denmark-17-400x300.jpg

MUN-Conference-Denmark-17-400x300.jpg

1206 ms

Music-Studio-3-400x300.jpg

Music-Studio-3-400x300.jpg

1245 ms

Winter-Camp-Feb-2016-9-400x300.jpg

Winter-Camp-Feb-2016-9-400x300.jpg

1257 ms

EY-Rock-Climbing-Jan-2016-7-400x300.jpg

EY-Rock-Climbing-Jan-2016-7-400x300.jpg

1253 ms

Riverside-May-2015_186-400x300.jpg

Riverside-May-2015_186-400x300.jpg

1324 ms

Burns-Night-2016-2-400x300.jpg

Burns-Night-2016-2-400x300.jpg

1328 ms

cobis-logo.jpg

cobis-logo.jpg

1325 ms

adventuremark-large.jpg

adventuremark-large.jpg

1368 ms

cis-logo.png

cis-logo.png

1370 ms

ib.jpg

ib.jpg

1391 ms

neasc.jpg

neasc.jpg

1447 ms

isc-logo.jpg

isc-logo.jpg

1439 ms

afPE-Quality-Mark-Logo-470px.jpg

afPE-Quality-Mark-Logo-470px.jpg

1448 ms

DofE-logo.jpg

DofE-logo.jpg

1493 ms

collect

collect

156 ms

132430214

132430214

183 ms

yAwCax9lZJpCW8yKiUNSsw.ttf

yAwCax9lZJpCW8yKiUNSsw.ttf

148 ms

-1odZCVpKpOs9pNLq607fqCWcynf_cDxXwCLxiixG1c.ttf

-1odZCVpKpOs9pNLq607fqCWcynf_cDxXwCLxiixG1c.ttf

148 ms

fSUtikcZd7PHZK0t2hzTeaCWcynf_cDxXwCLxiixG1c.ttf

fSUtikcZd7PHZK0t2hzTeaCWcynf_cDxXwCLxiixG1c.ttf

148 ms

bullet.png

bullet.png

1301 ms

large_left.png

large_left.png

1336 ms

large_right.png

large_right.png

1348 ms

player.js

player.js

109 ms

player.css

player.css

89 ms

ga.js

ga.js

43 ms

vuid.min.js

vuid.min.js

80 ms

__utm.gif

__utm.gif

15 ms

proxy.html

proxy.html

52 ms

525111268.jpg

525111268.jpg

121 ms

Accessibility Review

riversideschool.cz accessibility score

96

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

Links do not have a discernible name

Best Practices

riversideschool.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Page has valid source maps

SEO Factors

riversideschool.cz SEO score

90

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

    N/A

  • Encoding

    UTF-8

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

riversideschool.cz

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