Tools & Wizards About Us
nostis.org screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nostis.org

Nostis | Všechny online kurzy zdarma

Page Load Speed

4.9 sec in total

First Response

331 ms

Resources Loaded

3.7 sec

Page Rendered

859 ms

nostis.org screenshot

About Website

Visit nostis.org now to see the best up-to-date Nostis content for Czech Republic and also check out these interesting facts you probably never knew about nostis.org

Takové know how zdarma a průměrně v 8 minutách denně jinde nenajdeš. Vyzkoušet můžete třeba kurzy zaštítěné univerzitou Palackého.

Visit nostis.org

Key Findings

We analyzed Nostis.org page load time and found that the first response time was 331 ms and then it took 4.5 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

nostis.org performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value1,340 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

nostis.org

331 ms

nostis.org

670 ms

gtm.js

139 ms

baseModule.29bf363bcc5f1a1b069f.css

391 ms

baseModule.29bf363bcc5f1a1b069f.bundle.js

930 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 82% of them (47 requests) were addressed to the original Nostis.org, 4% (2 requests) were made to Google-analytics.com and 4% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Nostis.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 574.0 kB (14%)

Content Size

4.1 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nostis.org main page is 4.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 22.7 kB

  • Original 28.6 kB
  • After minification 25.7 kB
  • After compression 5.9 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 22.7 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 237.5 kB

  • Original 3.7 MB
  • After minification 3.5 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. Nostis images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 32.0 kB

  • Original 53.8 kB
  • After minification 53.8 kB
  • After compression 21.7 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 32.0 kB or 60% of the original size.

CSS Optimization

-86%

Potential reduce by 281.7 kB

  • Original 327.7 kB
  • After minification 327.3 kB
  • After compression 45.9 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. Nostis.org needs all CSS files to be minified and compressed as it can save up to 281.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (26%)

Requests Now

50

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nostis. 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

nostis.org

nostis.org

331 ms

nostis.org

nostis.org

670 ms

gtm.js

gtm.js

139 ms

baseModule.29bf363bcc5f1a1b069f.css

baseModule.29bf363bcc5f1a1b069f.css

391 ms

baseModule.29bf363bcc5f1a1b069f.bundle.js

baseModule.29bf363bcc5f1a1b069f.bundle.js

930 ms

api.js

api.js

164 ms

logoB.png

logoB.png

635 ms

thumbnail.jpg

thumbnail.jpg

1451 ms

thumbnailTile.jpg

thumbnailTile.jpg

866 ms

thumbnailTile.jpg

thumbnailTile.jpg

632 ms

thumbnailTile.jpg

thumbnailTile.jpg

632 ms

thumbnailTile.jpg

thumbnailTile.jpg

866 ms

thumbnailTile.jpg

thumbnailTile.jpg

874 ms

thumbnailTile.jpg

thumbnailTile.jpg

873 ms

thumbnailTile.jpg

thumbnailTile.jpg

875 ms

certifikat.png

certifikat.png

1699 ms

img_1.jpg

img_1.jpg

1437 ms

img_2.jpg

img_2.jpg

1649 ms

arrow-small-l.png

arrow-small-l.png

1257 ms

arrow-small-r.png

arrow-small-r.png

1257 ms

thumbnail.jpg

thumbnail.jpg

1446 ms

thumbnail.jpg

thumbnail.jpg

1436 ms

thumbnail.jpg

thumbnail.jpg

1650 ms

thumbnail.jpg

thumbnail.jpg

1644 ms

thumbnail.jpg

thumbnail.jpg

1650 ms

thumbnail.jpg

thumbnail.jpg

2036 ms

thumbnail.jpg

thumbnail.jpg

1677 ms

thumbnail.jpg

thumbnail.jpg

1961 ms

thumbnail.jpg

thumbnail.jpg

2035 ms

thumbnail.jpg

thumbnail.jpg

2051 ms

thumbnail.jpg

thumbnail.jpg

2050 ms

thumbnail.jpg

thumbnail.jpg

2054 ms

thumbnail.jpg

thumbnail.jpg

2049 ms

miller.jpg

miller.jpg

2260 ms

farsky.jpg

farsky.jpg

2262 ms

fb_1.png

fb_1.png

2259 ms

insta_1.png

insta_1.png

2258 ms

red_1.png

red_1.png

2261 ms

analytics.js

analytics.js

325 ms

fbevents.js

fbevents.js

322 ms

collect

collect

104 ms

980955451976208

980955451976208

386 ms

collect

collect

367 ms

blue_1.png

blue_1.png

1042 ms

img_5.jpg

img_5.jpg

1310 ms

arrow-l-grey.png

arrow-l-grey.png

1042 ms

arrow-r-grey.png

arrow-r-grey.png

1043 ms

e30cbd9cd0d1c60a963dde0e38de7bbb.woff

e30cbd9cd0d1c60a963dde0e38de7bbb.woff

1308 ms

62774140eea2cfee57c624f818f693dd.woff

62774140eea2cfee57c624f818f693dd.woff

1309 ms

5380db52605adc9ebefdb3f832d62c21.woff

5380db52605adc9ebefdb3f832d62c21.woff

1306 ms

e736e8abbf8dc80346e69e734f139533.woff

e736e8abbf8dc80346e69e734f139533.woff

1310 ms

433 ms

ef72cd87c5b9345d79460a1693ffb611.woff

ef72cd87c5b9345d79460a1693ffb611.woff

860 ms

recaptcha__en.js

recaptcha__en.js

277 ms

cookies.png

cookies.png

276 ms

close.png

close.png

277 ms

246 ms

Accessibility Review

nostis.org accessibility score

95

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.

Best Practices

nostis.org 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nostis.org SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nostis.org can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Nostis.org 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

nostis.org

Open Graph data is detected on the main page of Nostis. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: