Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

optimalenergy.pl

Porównywarka ofert dla domu i firmy | OptimalEnergy.pl

Page Load Speed

7.2 sec in total

First Response

502 ms

Resources Loaded

3.7 sec

Page Rendered

3 sec

optimalenergy.pl screenshot

About Website

Visit optimalenergy.pl now to see the best up-to-date Optimal Energy content for Poland and also check out these interesting facts you probably never knew about optimalenergy.pl

Wybieraj najlepsze produkty w najniższych cenach. Porównaj prąd, gaz i fotowoltaikę. Sprawdź rankingi aut elektrycznych. Korzystaj z bezpłatnych kalkulatorów.

Visit optimalenergy.pl

Key Findings

We analyzed Optimalenergy.pl page load time and found that the first response time was 502 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

optimalenergy.pl performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value9,710 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.176

68/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

optimalenergy.pl

502 ms

optimalenergy.pl

590 ms

index.min.css

235 ms

lazysizes.min.js

366 ms

gtm.js

205 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 36% of them (13 requests) were addressed to the original Optimalenergy.pl, 8% (3 requests) were made to T.goadservices.com and 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source T.goadservices.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 74.8 kB (39%)

Content Size

191.0 kB

After Optimization

116.2 kB

In fact, the total size of Optimalenergy.pl main page is 191.0 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. 50% of websites need less resources to load. HTML takes 69.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 54.8 kB

  • Original 69.7 kB
  • After minification 59.3 kB
  • After compression 14.9 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. This page needs HTML code to be minified as it can gain 10.4 kB, which is 15% 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 54.8 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 78 B

  • Original 57.3 kB
  • After minification 57.2 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. Optimal Energy images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 801 B

  • Original 39.1 kB
  • After minification 39.1 kB
  • After compression 38.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-77%

Potential reduce by 19.1 kB

  • Original 24.8 kB
  • After minification 24.8 kB
  • After compression 5.7 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. Optimalenergy.pl needs all CSS files to be minified and compressed as it can save up to 19.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (75%)

Requests Now

32

After Optimization

8

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optimal Energy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

optimalenergy.pl accessibility score

95

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.

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

optimalenergy.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

optimalenergy.pl 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

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 Optimalenergy.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 Optimalenergy.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 data is detected on the main page of Optimal Energy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: