Report Summary

  • 1

    Performance

    Renders faster than
    19% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

polon.nauka.gov.pl

POL-on – zintegrowany system informacji o nauce polskiej i szkolnictwie wyższym

Page Load Speed

3.7 sec in total

First Response

525 ms

Resources Loaded

2.7 sec

Page Rendered

434 ms

polon.nauka.gov.pl screenshot

About Website

Visit polon.nauka.gov.pl now to see the best up-to-date POL On Nauka content for Poland and also check out these interesting facts you probably never knew about polon.nauka.gov.pl

Pol-on to najbardziej obszerne repozytorium danych o polskiej nauce i szkolnictwie wyższym. Jest największym z punktu widzenia zakresu zbieranych danych działającym systemem publicznym.

Visit polon.nauka.gov.pl

Key Findings

We analyzed Polon.nauka.gov.pl page load time and found that the first response time was 525 ms and then it took 3.2 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

polon.nauka.gov.pl performance score

1

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value5,580 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.986

2/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

Network Requests Diagram

polon.nauka.gov.pl

525 ms

jquery-1.8.2.min.js

242 ms

jquery.bxslider.min.js

231 ms

script.js

228 ms

flowplayer-3.2.12.min.js

233 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 86% of them (55 requests) were addressed to the original Polon.nauka.gov.pl, 6% (4 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Polon.nauka.gov.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 742.3 kB (29%)

Content Size

2.5 MB

After Optimization

1.8 MB

In fact, the total size of Polon.nauka.gov.pl main page is 2.5 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. 45% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 31.6 kB

  • Original 39.7 kB
  • After minification 39.3 kB
  • After compression 8.1 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 31.6 kB or 80% of the original size.

Image Optimization

-14%

Potential reduce by 254.1 kB

  • Original 1.8 MB
  • After minification 1.6 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. Obviously, POL On Nauka needs image optimization as it can save up to 254.1 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-66%

Potential reduce by 319.0 kB

  • Original 485.4 kB
  • After minification 479.1 kB
  • After compression 166.3 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 319.0 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 137.5 kB

  • Original 166.2 kB
  • After minification 163.9 kB
  • After compression 28.7 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. Polon.nauka.gov.pl needs all CSS files to be minified and compressed as it can save up to 137.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (23%)

Requests Now

57

After Optimization

44

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of POL On Nauka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

polon.nauka.gov.pl accessibility score

100

Accessibility Issues

Best Practices

polon.nauka.gov.pl 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

polon.nauka.gov.pl SEO score

79

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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Polon.nauka.gov.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Polon.nauka.gov.pl 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 POL On Nauka. 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: