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koleston.com screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

koleston.com

Welcome ! Discover the world of Wella - the best products for YOUR hair.

Page Load Speed

1.5 sec in total

First Response

45 ms

Resources Loaded

1.4 sec

Page Rendered

56 ms

koleston.com screenshot

About Website

Welcome to koleston.com homepage info - get ready to check Koleston best content right away, or after learning these important things about koleston.com

Welcome to Wella! Find the best recommended products for YOUR hair needs, get pro tips, latest looks tutorials and explore brands homepage for innovations

Visit koleston.com

Key Findings

We analyzed Koleston.com page load time and found that the first response time was 45 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

koleston.com performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.108

88/100

15%

TTI (Time to Interactive)

Value7.8 s

45/100

10%

Network Requests Diagram

koleston.com

45 ms

en-sa

3 ms

en-arabia

7 ms

otSDKStub.js

35 ms

css_D13drXk1oNKQ02nfVqMOg8S0foBw4_A6CdTezBnstso.css

14 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Koleston.com, 58% (11 requests) were made to Wella.com and 16% (3 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (852 ms) relates to the external source Wella.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.9 kB (13%)

Content Size

471.9 kB

After Optimization

410.0 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Koleston.com main page is 471.9 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. 15% of websites need less resources to load. Javascripts take 392.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 61.4 kB

  • Original 71.6 kB
  • After minification 51.1 kB
  • After compression 10.3 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 20.6 kB, which is 29% 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 61.4 kB or 86% of the original size.

JavaScript Optimization

-0%

Potential reduce by 225 B

  • Original 392.1 kB
  • After minification 392.1 kB
  • After compression 391.9 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

-4%

Potential reduce by 294 B

  • Original 8.2 kB
  • After minification 8.2 kB
  • After compression 7.9 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. Koleston.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (80%)

Requests Now

15

After Optimization

3

  • AJAX
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koleston. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

koleston.com

koleston.com

45 ms

en-sa

en-sa

3 ms

en-arabia

en-arabia

7 ms

otSDKStub.js

otSDKStub.js

35 ms

css_D13drXk1oNKQ02nfVqMOg8S0foBw4_A6CdTezBnstso.css

css_D13drXk1oNKQ02nfVqMOg8S0foBw4_A6CdTezBnstso.css

14 ms

css_c9m7xRE7dEnIUXkbCXNCPndrkoxToWmv2TNoyKzfPuM.css

css_c9m7xRE7dEnIUXkbCXNCPndrkoxToWmv2TNoyKzfPuM.css

14 ms

css_xx3x_9iihJ5aZvI4hc5mfimUuzy5fRw3zUeeZY6r4L8.css

css_xx3x_9iihJ5aZvI4hc5mfimUuzy5fRw3zUeeZY6r4L8.css

15 ms

css_OTnnYLou36tSJmZfDb0TapSIKaZmK485g6B0XN91r-g.css

css_OTnnYLou36tSJmZfDb0TapSIKaZmK485g6B0XN91r-g.css

464 ms

launch-aa81751fb5ec.min.js

launch-aa81751fb5ec.min.js

28 ms

js_NO6JbhczLwcghlYUXF5cvPlyjT9X98HHDjUhKD5VOiM.js

js_NO6JbhczLwcghlYUXF5cvPlyjT9X98HHDjUhKD5VOiM.js

21 ms

js_0Q5EgN1bYTkkPL4kGWYYEFJI6GAhiOlq7vtjvPiZyXA.js

js_0Q5EgN1bYTkkPL4kGWYYEFJI6GAhiOlq7vtjvPiZyXA.js

20 ms

js_QWgmyZchEtbmD7_Fkd-8NWIeh4WBUgSsW3dVmxTe7b0.js

js_QWgmyZchEtbmD7_Fkd-8NWIeh4WBUgSsW3dVmxTe7b0.js

20 ms

js_cwZbR6KMigMxO8RMGo2vu6uNcnN7E5q5prZPfIyAhnQ.js

js_cwZbR6KMigMxO8RMGo2vu6uNcnN7E5q5prZPfIyAhnQ.js

21 ms

e00c3d87-ddaa-469b-bd60-1bbd0fc3e3ce.json

e00c3d87-ddaa-469b-bd60-1bbd0fc3e3ce.json

32 ms

AppMeasurement.min.js

AppMeasurement.min.js

6 ms

AppMeasurement_Module_ActivityMap.min.js

AppMeasurement_Module_ActivityMap.min.js

7 ms

location

location

31 ms

otBannerSdk.js

otBannerSdk.js

29 ms

css_OTnnYLou36tSJmZfDb0TapSIKaZmK485g6B0XN91r-g.css

css_OTnnYLou36tSJmZfDb0TapSIKaZmK485g6B0XN91r-g.css

852 ms

Accessibility Review

koleston.com accessibility score

89

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

koleston.com best practices score

83

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

koleston.com SEO score

83

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

High

Page is blocked from indexing

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

koleston.com

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