Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

osvk.edu.rs

Основна школа "Вук Караџић" Поточац

Page Load Speed

4.3 sec in total

First Response

828 ms

Resources Loaded

2.7 sec

Page Rendered

697 ms

osvk.edu.rs screenshot

About Website

Welcome to osvk.edu.rs homepage info - get ready to check Osvk Edu best content right away, or after learning these important things about osvk.edu.rs

Visit osvk.edu.rs

Key Findings

We analyzed Osvk.edu.rs page load time and found that the first response time was 828 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

osvk.edu.rs performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value7.0 s

52/100

10%

Network Requests Diagram

www.osvk.edu.rs

828 ms

wp-emoji-release.min.js

302 ms

widgets.css

226 ms

style.css

438 ms

genericons.css

304 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 56% of them (35 requests) were addressed to the original Osvk.edu.rs, 19% (12 requests) were made to Scontent.xx.fbcdn.net and 16% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (885 ms) belongs to the original domain Osvk.edu.rs.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.2 kB (14%)

Content Size

1.3 MB

After Optimization

1.1 MB

In fact, the total size of Osvk.edu.rs main page is 1.3 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. 30% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 17.6 kB

  • Original 24.1 kB
  • After minification 23.1 kB
  • After compression 6.5 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 17.6 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 14.7 kB

  • Original 1.0 MB
  • After minification 1.0 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. Osvk Edu images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 129.8 kB

  • Original 198.0 kB
  • After minification 197.2 kB
  • After compression 68.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 129.8 kB or 66% of the original size.

CSS Optimization

-56%

Potential reduce by 25.1 kB

  • Original 45.0 kB
  • After minification 40.5 kB
  • After compression 19.8 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. Osvk.edu.rs needs all CSS files to be minified and compressed as it can save up to 25.1 kB or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (41%)

Requests Now

61

After Optimization

36

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osvk Edu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

osvk.edu.rs accessibility score

92

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

osvk.edu.rs best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

osvk.edu.rs SEO score

92

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

Language and Encoding

  • Language Detected

    SR

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osvk.edu.rs can be misinterpreted by Google and other search engines. Our service has detected that Serbian is used on the page, and it does not match the claimed English language. Our system also found out that Osvk.edu.rs 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

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