Tools & Wizards About Us
kolagen.biz screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

kolagen.biz

Kolagen Naturalny - AQUA ZDRÓJ

Page Load Speed

2.6 sec in total

First Response

305 ms

Resources Loaded

1.9 sec

Page Rendered

368 ms

kolagen.biz screenshot

About Website

Welcome to kolagen.biz homepage info - get ready to check Kolagen best content right away, or after learning these important things about kolagen.biz

Kolagen naturalny to podstawa zdrowia i urody. Dzięki polskiej biotechnologii możemy Państwu zaoferować kosmetyki z biologicznie czynnym kolagenem naturalnym. Wysoka zawartość naturalnego kolagenu w k...

Visit kolagen.biz

Key Findings

We analyzed Kolagen.biz page load time and found that the first response time was 305 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

kolagen.biz performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value3.5 s

87/100

10%

TBT (Total Blocking Time)

Value170 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.095

91/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

kolagen.biz

305 ms

www.kolagen.biz

597 ms

skype-uri.js

9 ms

pix.gif

187 ms

kolagen22.jpg

303 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 69% of them (51 requests) were addressed to the original Kolagen.biz, 9% (7 requests) were made to Translate.googleapis.com and 8% (6 requests) were made to Infon.pl. The less responsive or slowest element that took the longest time to load (671 ms) belongs to the original domain Kolagen.biz.

Page Optimization Overview & Recommendations

Page size can be reduced by 139.8 kB (33%)

Content Size

417.7 kB

After Optimization

277.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kolagen.biz main page is 417.7 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 184.4 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 107.5 kB

  • Original 127.1 kB
  • After minification 122.4 kB
  • After compression 19.6 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 107.5 kB or 85% of the original size.

Image Optimization

-16%

Potential reduce by 29.5 kB

  • Original 184.4 kB
  • After minification 155.0 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. Obviously, Kolagen needs image optimization as it can save up to 29.5 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 2.7 kB

  • Original 102.5 kB
  • After minification 102.5 kB
  • After compression 99.8 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

-2%

Potential reduce by 70 B

  • Original 3.6 kB
  • After minification 3.6 kB
  • After compression 3.5 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. Kolagen.biz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (20%)

Requests Now

65

After Optimization

52

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolagen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

kolagen.biz

kolagen.biz

305 ms

www.kolagen.biz

www.kolagen.biz

597 ms

skype-uri.js

skype-uri.js

9 ms

pix.gif

pix.gif

187 ms

kolagen22.jpg

kolagen22.jpg

303 ms

home2.jpg

home2.jpg

194 ms

kolagen2.jpg

kolagen2.jpg

195 ms

kosmetyki2.jpg

kosmetyki2.jpg

199 ms

opinie.jpg

opinie.jpg

199 ms

biznes2.jpg

biznes2.jpg

301 ms

kontakt2.jpg

kontakt2.jpg

302 ms

forum2.jpg

forum2.jpg

302 ms

program-partnerski-colway.jpg

program-partnerski-colway.jpg

304 ms

LOGO2.JPG

LOGO2.JPG

303 ms

lupa.gif

lupa.gif

379 ms

kolagen_naturalny.jpg

kolagen_naturalny.jpg

578 ms

blank.gif

blank.gif

383 ms

szampon-do-wlosow-250-ml_133_k.jpg

szampon-do-wlosow-250-ml_133_k.jpg

386 ms

koszyk.gif

koszyk.gif

401 ms

atelokolagen-50-ml_226_k.jpg

atelokolagen-50-ml_226_k.jpg

401 ms

balsam-do-ciala-kolageno_78_k.jpg

balsam-do-ciala-kolageno_78_k.jpg

473 ms

colamid_71_k.jpg

colamid_71_k.jpg

479 ms

collaceina-60-kapsulek_74_k.jpg

collaceina-60-kapsulek_74_k.jpg

482 ms

colvita-60-kapsulek_153_k.jpg

colvita-60-kapsulek_153_k.jpg

492 ms

skype-analytics.js

skype-analytics.js

18 ms

callbutton_32px.png

callbutton_32px.png

2 ms

colagen.jpg

colagen.jpg

405 ms

element.js

element.js

33 ms

deklaracja-czlonkowsko-r_186_k.jpg

deklaracja-czlonkowsko-r_186_k.jpg

381 ms

intensywnie-nawilzajacy_141_k.jpg

intensywnie-nawilzajacy_141_k.jpg

457 ms

kolagen-naturalny-invent_9_k.jpg

kolagen-naturalny-invent_9_k.jpg

463 ms

kolagen-naturalny-invent_2_k.jpg

kolagen-naturalny-invent_2_k.jpg

468 ms

kolagen-naturalny-invent_4_k.jpg

kolagen-naturalny-invent_4_k.jpg

480 ms

kolagen-naturalny-invent_6_k.jpg

kolagen-naturalny-invent_6_k.jpg

480 ms

kolagen-natywny-gold-50_139_k.jpg

kolagen-natywny-gold-50_139_k.jpg

550 ms

kolagenowa-pomadka-ochro_76_k.jpg

kolagenowa-pomadka-ochro_76_k.jpg

560 ms

krem-do-rak-hand-cream-1_129_k.jpg

krem-do-rak-hand-cream-1_129_k.jpg

562 ms

krem-nawilzajacy-na-dzie_126_k.jpg

krem-nawilzajacy-na-dzie_126_k.jpg

563 ms

krzem-orsi-1000-ml_69_k.jpg

krzem-orsi-1000-ml_69_k.jpg

577 ms

maska-kolagenowa-ze-zlot_77_k.jpg

maska-kolagenowa-ze-zlot_77_k.jpg

579 ms

native-collagen-50-ml_75_k.jpg

native-collagen-50-ml_75_k.jpg

642 ms

odmladzajacy-krem-do-twa_134_k.jpg

odmladzajacy-krem-do-twa_134_k.jpg

654 ms

olej-arganowy-500-ml_79_k.jpg

olej-arganowy-500-ml_79_k.jpg

659 ms

translateelement.css

translateelement.css

55 ms

main.js

main.js

71 ms

oliwa-z-oliwek-500-ml_110_k.jpg

oliwa-z-oliwek-500-ml_110_k.jpg

592 ms

omega-complex-60-szt_130_k.jpg

omega-complex-60-szt_130_k.jpg

602 ms

oryginalny-krzem-orsi-50_70_k.jpg

oryginalny-krzem-orsi-50_70_k.jpg

600 ms

serum-wyszczuplajace-200_122_k.jpg

serum-wyszczuplajace-200_122_k.jpg

658 ms

szampon-zageszczajacy-wl_205_k.jpg

szampon-zageszczajacy-wl_205_k.jpg

671 ms

div_1.jpg

div_1.jpg

302 ms

element_main.js

element_main.js

45 ms

translate_24dp.png

translate_24dp.png

29 ms

l

l

55 ms

googlelogo_color_42x16dp.png

googlelogo_color_42x16dp.png

26 ms

witamina-c-100-kapsulek_128_k.jpg

witamina-c-100-kapsulek_128_k.jpg

574 ms

zel-do-kapieli-dla-dziec_183_k.jpg

zel-do-kapieli-dla-dziec_183_k.jpg

575 ms

zel-do-mycia-twarzy-250_184_k.jpg

zel-do-mycia-twarzy-250_184_k.jpg

590 ms

zestaw-pielegnacyjny-do_84_k.jpg

zestaw-pielegnacyjny-do_84_k.jpg

591 ms

naturalny.gif

naturalny.gif

646 ms

deklaracja-czlonkowsko-r_186_m.jpg

deklaracja-czlonkowsko-r_186_m.jpg

661 ms

googlelogo_color_68x28dp.png

googlelogo_color_68x28dp.png

4 ms

cleardot.gif

cleardot.gif

41 ms

te_ctrl3.gif

te_ctrl3.gif

15 ms

loading.gif

loading.gif

25 ms

zestaw-pielegnacyjny-do_26_m.jpg

zestaw-pielegnacyjny-do_26_m.jpg

591 ms

colway.jpg

colway.jpg

591 ms

te_bk.gif

te_bk.gif

11 ms

colagen.jpg

colagen.jpg

357 ms

home.jpg

home.jpg

93 ms

about.jpg

about.jpg

177 ms

services_2.jpg

services_2.jpg

178 ms

tips_2.jpg

tips_2.jpg

179 ms

contacts_2.jpg

contacts_2.jpg

184 ms

Accessibility Review

kolagen.biz accessibility score

52

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

[role] values are not valid

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

kolagen.biz best practices score

50

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

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

kolagen.biz SEO score

69

Search Engine Optimization Advices

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

    N/A

  • Encoding

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolagen.biz 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 Kolagen.biz main page’s claimed encoding is iso-8859-2. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

kolagen.biz

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