Tools & Wizards About Us
korsa.ua screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

korsa.ua

Металопластикові вікна REHAU (вікна рехау) - ТМ ВІКНА КОРСА

Page Load Speed

3.7 sec in total

First Response

337 ms

Resources Loaded

2.8 sec

Page Rendered

580 ms

korsa.ua screenshot

About Website

Click here to check amazing Korsa content for Ukraine. Otherwise, check out these important facts you probably never knew about korsa.ua

Найзручніший сайт для замовлення вікон. Пластикові вікна Rehau. 24 роки досвіду, якості та довіри клієнтів. Безкоштовний виклик замірника 0-800-210-210

Visit korsa.ua

Key Findings

We analyzed Korsa.ua page load time and found that the first response time was 337 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

korsa.ua performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value2,140 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.966

2/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

korsa.ua

337 ms

www.korsa.ua

533 ms

css_lQaZfjVpwP_oGNqdtWCSpJT1EMqXdMiU84ekLLxQnc4.css

101 ms

css_ewh2nuQ8HjJaZwVAFQGdFbutfH3Y74LaQrYTAzijhTo.css

201 ms

css_dLkR6Jj2c6B2_1EGeMzQuJaIvxJAR9r982BM7R31BQ0.css

298 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 97% of them (84 requests) were addressed to the original Korsa.ua, 2% (2 requests) were made to Youtube.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (793 ms) belongs to the original domain Korsa.ua.

Page Optimization Overview & Recommendations

Page size can be reduced by 217.4 kB (15%)

Content Size

1.4 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Korsa.ua main page is 1.4 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. 60% of websites need less resources to load. Images take 978.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 175.2 kB

  • Original 209.8 kB
  • After minification 202.0 kB
  • After compression 34.6 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 175.2 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 41.7 kB

  • Original 978.4 kB
  • After minification 936.7 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. Korsa images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 312 B

  • Original 124.6 kB
  • After minification 124.6 kB
  • After compression 124.3 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

-0%

Potential reduce by 202 B

  • Original 90.8 kB
  • After minification 90.8 kB
  • After compression 90.6 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. Korsa.ua has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (26%)

Requests Now

78

After Optimization

58

  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Korsa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

korsa.ua

korsa.ua

337 ms

www.korsa.ua

www.korsa.ua

533 ms

css_lQaZfjVpwP_oGNqdtWCSpJT1EMqXdMiU84ekLLxQnc4.css

css_lQaZfjVpwP_oGNqdtWCSpJT1EMqXdMiU84ekLLxQnc4.css

101 ms

css_ewh2nuQ8HjJaZwVAFQGdFbutfH3Y74LaQrYTAzijhTo.css

css_ewh2nuQ8HjJaZwVAFQGdFbutfH3Y74LaQrYTAzijhTo.css

201 ms

css_dLkR6Jj2c6B2_1EGeMzQuJaIvxJAR9r982BM7R31BQ0.css

css_dLkR6Jj2c6B2_1EGeMzQuJaIvxJAR9r982BM7R31BQ0.css

298 ms

css_aCNO512EQ2BK1aqqrzwY_DDcrZFQk3UUfLYux04EbPE.css

css_aCNO512EQ2BK1aqqrzwY_DDcrZFQk3UUfLYux04EbPE.css

303 ms

css_jWAt6e3cV9dXSNz1knqnjphgPAHvtdd6vx28ge7tDIg.css

css_jWAt6e3cV9dXSNz1knqnjphgPAHvtdd6vx28ge7tDIg.css

307 ms

css_nLTaxJ06LgOA-KJvt1tttQoBR7M_nQCscLNw23-oZp0.css

css_nLTaxJ06LgOA-KJvt1tttQoBR7M_nQCscLNw23-oZp0.css

507 ms

js_e1oR3bJDTBJOzKzEUN-PHmwEQxAT0E1t0Ajk_OIwZFw.js

js_e1oR3bJDTBJOzKzEUN-PHmwEQxAT0E1t0Ajk_OIwZFw.js

324 ms

js_AJr4qDik34-56QvZH7VEAG8BUBvMU3fbb_8oUW0t22k.js

js_AJr4qDik34-56QvZH7VEAG8BUBvMU3fbb_8oUW0t22k.js

431 ms

js_eEbC3bmFg5b93qr5l_5AOJhHmymaiFATDkcHFl6Jbmw.js

js_eEbC3bmFg5b93qr5l_5AOJhHmymaiFATDkcHFl6Jbmw.js

499 ms

js_jfl2c9VaUNQsBwD42nG9AQrAOFCTTQzOu-ZBaylJNj0.js

js_jfl2c9VaUNQsBwD42nG9AQrAOFCTTQzOu-ZBaylJNj0.js

401 ms

js_7c7VVRakkTasQeTpPUcocXnpprdFXRpOFElgZ20vymw.js

js_7c7VVRakkTasQeTpPUcocXnpprdFXRpOFElgZ20vymw.js

597 ms

js_osrJPp5T179rF8AWGsxAYcLEoCzYi3TDOXwt5OsUd1s.js

js_osrJPp5T179rF8AWGsxAYcLEoCzYi3TDOXwt5OsUd1s.js

420 ms

img-logo-x2.png

img-logo-x2.png

166 ms

korsa-manager-v3.jpg

korsa-manager-v3.jpg

166 ms

evidnovlenya-vikna_0.jpg

evidnovlenya-vikna_0.jpg

396 ms

evidnovlenya-vikna_0.jpg

evidnovlenya-vikna_0.jpg

282 ms

artboard_4.jpg

artboard_4.jpg

281 ms

artboard_4.jpg

artboard_4.jpg

283 ms

slider_korsa_doors_v2.jpg

slider_korsa_doors_v2.jpg

298 ms

slider_korsa_doors_v2.jpg

slider_korsa_doors_v2.jpg

300 ms

zsu-slider-02.jpg

zsu-slider-02.jpg

400 ms

zsu-slider-02.jpg

zsu-slider-02.jpg

402 ms

rehau-ecosol-60-pvc-profile-2.jpg

rehau-ecosol-60-pvc-profile-2.jpg

312 ms

rehau-euro-design-70-pvc-profile-3.jpg

rehau-euro-design-70-pvc-profile-3.jpg

398 ms

rehau-synego-pvc-profile.jpg

rehau-synego-pvc-profile.jpg

399 ms

rehau-brillant-design-pvc-profile-2.jpg

rehau-brillant-design-pvc-profile-2.jpg

415 ms

rehau-korsa-design-70-pvc-profile.jpg

rehau-korsa-design-70-pvc-profile.jpg

495 ms

rehau-geneo-pvc-profile.jpg

rehau-geneo-pvc-profile.jpg

497 ms

rehau-geneo-phz.jpg

rehau-geneo-phz.jpg

500 ms

aluminievye-okna-alutech.jpg

aluminievye-okna-alutech.jpg

501 ms

img-map-ukraine-v2.png

img-map-ukraine-v2.png

502 ms

TAiuUKePZhk.jpg

TAiuUKePZhk.jpg

517 ms

cDv5CDzQiW4.jpg

cDv5CDzQiW4.jpg

593 ms

SQql4YfH0ow.jpg

SQql4YfH0ow.jpg

596 ms

ASm-VUNVuR8.jpg

ASm-VUNVuR8.jpg

598 ms

default-avatar.png

default-avatar.png

598 ms

pexels-expect-best-323780.jpg

pexels-expect-best-323780.jpg

600 ms

pexels-pixabay-277559_0.jpg

pexels-pixabay-277559_0.jpg

621 ms

dizayn_bez_nazvi_7.jpg

dizayn_bez_nazvi_7.jpg

692 ms

5_2.jpg

5_2.jpg

694 ms

pexels-pixabay-269077.jpg

pexels-pixabay-269077.jpg

695 ms

peregorodki.jpg

peregorodki.jpg

695 ms

2_60_1.jpg

2_60_1.jpg

698 ms

dizayn_bez_nazvi_0.jpg

dizayn_bez_nazvi_0.jpg

723 ms

pvhwindows_13_1.jpg

pvhwindows_13_1.jpg

790 ms

rozmiry-dverei.jpg

rozmiry-dverei.jpg

793 ms

gtm.js

gtm.js

161 ms

terasa-zolotuy-dub_1.jpg

terasa-zolotuy-dub_1.jpg

749 ms

balcon.jpg

balcon.jpg

749 ms

tkaninni-roleti.jpg

tkaninni-roleti.jpg

634 ms

ClearSansRegular.woff

ClearSansRegular.woff

663 ms

iframe_api

iframe_api

42 ms

ClearSansLight.woff

ClearSansLight.woff

611 ms

ClearSansBold.woff

ClearSansBold.woff

634 ms

KelsonSansRegular.woff

KelsonSansRegular.woff

634 ms

KelsonSansLight.woff

KelsonSansLight.woff

618 ms

KelsonSansBold.woff

KelsonSansBold.woff

619 ms

www-widgetapi.js

www-widgetapi.js

4 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

723 ms

4_74.jpg

4_74.jpg

596 ms

okna-rehau-geneo-hst-310321-img6_0.jpg

okna-rehau-geneo-hst-310321-img6_0.jpg

596 ms

shtulpovoe-okno.png

shtulpovoe-okno.png

598 ms

evidnovlenya-vikna-sm_1.jpg

evidnovlenya-vikna-sm_1.jpg

597 ms

swisspacer_logo_claim_orange_rgb.jpg

swisspacer_logo_claim_orange_rgb.jpg

598 ms

small.jpg

small.jpg

675 ms

winkhauslogo_0.png

winkhauslogo_0.png

597 ms

logo_guardian_glass.png

logo_guardian_glass.png

597 ms

logo_stuertz-maschinenbau.jpg

logo_stuertz-maschinenbau.jpg

596 ms

lisec.jpg

lisec.jpg

596 ms

elumatec.jpg

elumatec.jpg

636 ms

logo_ferco.png

logo_ferco.png

671 ms

img-social-group-fb-v2.png

img-social-group-fb-v2.png

598 ms

img-social-group-yt-v2.png

img-social-group-yt-v2.png

597 ms

img-social-group-in-v2.png

img-social-group-in-v2.png

597 ms

img-logo-light-v2.png

img-logo-light-v2.png

597 ms

sprite-icons.png

sprite-icons.png

628 ms

bg-main-menu-dropdown.png

bg-main-menu-dropdown.png

667 ms

spinner-orange-64.gif

spinner-orange-64.gif

599 ms

bg-main-front-slider-form.png

bg-main-front-slider-form.png

600 ms

bg-ornament-grey.png

bg-ornament-grey.png

598 ms

bg-ornament-blue.png

bg-ornament-blue.png

600 ms

bg-footer-modal-link.png

bg-footer-modal-link.png

649 ms

img-phone-callback-float.png

img-phone-callback-float.png

664 ms

mobile-search-dark.png

mobile-search-dark.png

599 ms

bx_loader.gif

bx_loader.gif

599 ms

Accessibility Review

korsa.ua accessibility score

94

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

Links do not have a discernible name

Best Practices

korsa.ua 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

SEO Factors

korsa.ua SEO score

90

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

    UK

  • Language Claimed

    UK

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Korsa.ua can be misinterpreted by Google and other search engines. Our service has detected that Ukrainian is used on the page, and it matches the claimed language. Our system also found out that Korsa.ua 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

korsa.ua

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