Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

slovnaft.sk

Slovnaft

Page Load Speed

4.2 sec in total

First Response

302 ms

Resources Loaded

3.7 sec

Page Rendered

187 ms

slovnaft.sk screenshot

About Website

Visit slovnaft.sk now to see the best up-to-date Slovnaft content for Slovakia and also check out these interesting facts you probably never knew about slovnaft.sk

SLOVNAFT, a.s. so sídlom v Bratislave, je rafinérsko-petrochemická spoločnosť s ročným spracovaním 5,5 - 6 miliónov ton ropy. Spoločnosť okrem výroby, skladovania, distribúcie a veľkoobchodného predaj...

Visit slovnaft.sk

Key Findings

We analyzed Slovnaft.sk page load time and found that the first response time was 302 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

slovnaft.sk performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value22.9 s

0/100

25%

SI (Speed Index)

Value17.3 s

0/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.27

45/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

slovnaft.sk

302 ms

696 ms

cookie-consent.css

115 ms

jquery.min.js

21 ms

jquery-migrate-1.4.1.min.js

229 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 96% of them (73 requests) were addressed to the original Slovnaft.sk, 1% (1 request) were made to Ajax.googleapis.com and 1% (1 request) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Slovnaft.sk.

Page Optimization Overview & Recommendations

Page size can be reduced by 779.8 kB (24%)

Content Size

3.2 MB

After Optimization

2.5 MB

In fact, the total size of Slovnaft.sk main page is 3.2 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. 70% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 75.8 kB

  • Original 86.5 kB
  • After minification 48.7 kB
  • After compression 10.7 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. This page needs HTML code to be minified as it can gain 37.8 kB, which is 44% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 75.8 kB or 88% of the original size.

Image Optimization

-27%

Potential reduce by 637.8 kB

  • Original 2.3 MB
  • After minification 1.7 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, Slovnaft needs image optimization as it can save up to 637.8 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 65.2 kB

  • Original 668.3 kB
  • After minification 668.3 kB
  • After compression 603.1 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

-1%

Potential reduce by 994 B

  • Original 167.2 kB
  • After minification 167.2 kB
  • After compression 166.2 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. Slovnaft.sk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 37 (52%)

Requests Now

71

After Optimization

34

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slovnaft. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

slovnaft.sk accessibility score

83

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

slovnaft.sk best practices score

67

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

Browser errors were logged to the console

SEO Factors

slovnaft.sk SEO score

92

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

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

    SK

  • Language Claimed

    SK

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Slovnaft.sk can be misinterpreted by Google and other search engines. Our service has detected that Slovak is used on the page, and it matches the claimed language. Our system also found out that Slovnaft.sk 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 data is detected on the main page of Slovnaft. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: