Tools & Wizards About Us
rcoi.pl screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

rcoi.pl

Coming soon

Page Load Speed

2.9 sec in total

First Response

848 ms

Resources Loaded

1.8 sec

Page Rendered

256 ms

rcoi.pl screenshot

About Website

Click here to check amazing Rcoi content. Otherwise, check out these important facts you probably never knew about rcoi.pl

RCOI jest miejscem kontaktu dla osób zainteresowanych takimi tematami jak inwestowanie na Śląsku oraz oferty inwestycyjne Śląsk. Inwestowanie i obsługa inwestora to nasza specjalność.

Visit rcoi.pl

Key Findings

We analyzed Rcoi.pl page load time and found that the first response time was 848 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

rcoi.pl performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.324

35/100

15%

TTI (Time to Interactive)

Value5.7 s

67/100

10%

Network Requests Diagram

rcoi.pl

848 ms

funkcje.js

344 ms

style.css

233 ms

bg_l.gif

115 ms

top_spacer.gif

119 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Rcoi.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (848 ms) belongs to the original domain Rcoi.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 56.5 kB (16%)

Content Size

357.4 kB

After Optimization

300.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rcoi.pl main page is 357.4 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. Only 10% of websites need less resources to load. Images take 298.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 24.7 kB

  • Original 30.3 kB
  • After minification 29.6 kB
  • After compression 5.6 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 24.7 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 8.4 kB

  • Original 298.4 kB
  • After minification 290.0 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. Rcoi images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 11.8 kB

  • Original 14.9 kB
  • After minification 11.7 kB
  • After compression 3.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 11.8 kB or 79% of the original size.

CSS Optimization

-84%

Potential reduce by 11.6 kB

  • Original 13.8 kB
  • After minification 11.2 kB
  • After compression 2.2 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. Rcoi.pl needs all CSS files to be minified and compressed as it can save up to 11.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (44%)

Requests Now

27

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rcoi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

rcoi.pl

rcoi.pl

848 ms

funkcje.js

funkcje.js

344 ms

style.css

style.css

233 ms

bg_l.gif

bg_l.gif

115 ms

top_spacer.gif

top_spacer.gif

119 ms

logo.gif

logo.gif

117 ms

ue.gif

ue.gif

225 ms

woj_slaskie.jpg

woj_slaskie.jpg

231 ms

menu_tytul.gif

menu_tytul.gif

235 ms

menu_point.gif

menu_point.gif

235 ms

tytul_l.gif

tytul_l.gif

229 ms

logo-net-pl.jpg

logo-net-pl.jpg

818 ms

baner_oznakowanie_ce.jpg

baner_oznakowanie_ce.jpg

338 ms

top_logo.png

top_logo.png

342 ms

skf-logo.jpg

skf-logo.jpg

459 ms

cordis_logo.2.jpg

cordis_logo.2.jpg

346 ms

scs_kolor_kopia.gif

scs_kolor_kopia.gif

463 ms

your_europe.jpg

your_europe.jpg

451 ms

fg_kolor.png

fg_kolor.png

685 ms

krzyz.gif

krzyz.gif

462 ms

arrow_white.gif

arrow_white.gif

563 ms

baza_bg.gif

baza_bg.gif

562 ms

tytul_l2.gif

tytul_l2.gif

567 ms

arrow_black.gif

arrow_black.gif

568 ms

bg_p.gif

bg_p.gif

667 ms

rog_d_l.gif

rog_d_l.gif

676 ms

bg_d.gif

bg_d.gif

682 ms

rog_d_p.gif

rog_d_p.gif

683 ms

Accessibility Review

rcoi.pl accessibility score

66

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

rcoi.pl best practices score

67

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

High

Serves images with low resolution

SEO Factors

rcoi.pl SEO score

69

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rcoi.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Rcoi.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

rcoi.pl

Open Graph description is not detected on the main page of Rcoi. 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: