Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

servis.pl

Naukowy.pl - Polski Serwis Naukowy 1999-2022

Page Load Speed

9.9 sec in total

First Response

571 ms

Resources Loaded

8.8 sec

Page Rendered

462 ms

servis.pl screenshot

About Website

Welcome to servis.pl homepage info - get ready to check Servis best content right away, or after learning these important things about servis.pl

wiadomości i ciekawostki ze świata nauki

Visit servis.pl

Key Findings

We analyzed Servis.pl page load time and found that the first response time was 571 ms and then it took 9.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

servis.pl performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value1,080 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

servis.pl

571 ms

www.naukowy.pl

920 ms

www.naukowy.pl

861 ms

tabcontent.js

186 ms

info.js

185 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Servis.pl, 31% (14 requests) were made to Scontent.xx.fbcdn.net and 22% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (6.5 sec) relates to the external source Naukowy.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 70.1 kB (16%)

Content Size

435.5 kB

After Optimization

365.4 kB

In fact, the total size of Servis.pl main page is 435.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 357.7 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 28.2 kB

  • Original 39.1 kB
  • After minification 37.3 kB
  • After compression 10.8 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 28.2 kB or 72% of the original size.

Image Optimization

-6%

Potential reduce by 22.0 kB

  • Original 357.7 kB
  • After minification 335.7 kB

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. Servis images are well optimized though.

JavaScript Optimization

-42%

Potential reduce by 11.8 kB

  • Original 28.2 kB
  • After minification 22.9 kB
  • After compression 16.4 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 11.8 kB or 42% of the original size.

CSS Optimization

-76%

Potential reduce by 8.1 kB

  • Original 10.6 kB
  • After minification 8.2 kB
  • After compression 2.5 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. Servis.pl needs all CSS files to be minified and compressed as it can save up to 8.1 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (36%)

Requests Now

42

After Optimization

27

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Servis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

servis.pl accessibility score

59

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

servis.pl 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

servis.pl SEO score

62

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    EN

  • Encoding

    UTF-8

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