Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

portal.sinteza.singidunum.ac.rs

International Scientific Conference on Information Technology and Data Related Research

Page Load Speed

4.9 sec in total

First Response

526 ms

Resources Loaded

3.2 sec

Page Rendered

1.2 sec

portal.sinteza.singidunum.ac.rs screenshot

About Website

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Key Findings

We analyzed Portal.sinteza.singidunum.ac.rs page load time and found that the first response time was 526 ms and then it took 4.4 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

portal.sinteza.singidunum.ac.rs performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.312

37/100

15%

TTI (Time to Interactive)

Value5.3 s

72/100

10%

Network Requests Diagram

portal.sinteza.singidunum.ac.rs

526 ms

portal.sinteza.singidunum.ac.rs

604 ms

css

25 ms

bootstrap.css

230 ms

bootstrap-responsive.css

329 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 81% of them (42 requests) were addressed to the original Portal.sinteza.singidunum.ac.rs, 8% (4 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Portal.sinteza.singidunum.ac.rs.

Page Optimization Overview & Recommendations

Page size can be reduced by 357.9 kB (11%)

Content Size

3.3 MB

After Optimization

2.9 MB

In fact, the total size of Portal.sinteza.singidunum.ac.rs main page is 3.3 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. 65% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 22.7 kB

  • Original 26.6 kB
  • After minification 24.7 kB
  • After compression 3.9 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 85% of the original size.

Image Optimization

-10%

Potential reduce by 331.2 kB

  • Original 3.2 MB
  • After minification 2.8 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. Portal Sinteza Singidunum Ac images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 2.1 kB

  • Original 59.7 kB
  • After minification 59.7 kB
  • After compression 57.5 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

-6%

Potential reduce by 1.9 kB

  • Original 28.9 kB
  • After minification 28.9 kB
  • After compression 27.1 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. Portal.sinteza.singidunum.ac.rs has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (16%)

Requests Now

45

After Optimization

38

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Portal Sinteza Singidunum Ac. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

portal.sinteza.singidunum.ac.rs accessibility score

68

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

portal.sinteza.singidunum.ac.rs best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

portal.sinteza.singidunum.ac.rs SEO score

79

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

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

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

    SR

  • Encoding

    UTF-8

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