Tools & Wizards About Us
colorizer.org screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

colorizer.org

Colorizer - Color picker and converter (RGB HSL HSB/HSV CMYK HEX LAB)

Page Load Speed

4.7 sec in total

First Response

46 ms

Resources Loaded

4 sec

Page Rendered

660 ms

colorizer.org screenshot

About Website

Visit colorizer.org now to see the best up-to-date Colorizer content for United States and also check out these interesting facts you probably never knew about colorizer.org

Color picker, calculator and generator with high precision and contrast test. Converts also RGB, HEX, HSL, HSV/HSB, CMYK and CIE-LAB colors and lots of other formats.

Visit colorizer.org

Key Findings

We analyzed Colorizer.org page load time and found that the first response time was 46 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

colorizer.org performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value800 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

colorizer.org

46 ms

normalize.css

21 ms

jquery-ui.css

39 ms

ui.normal.css

43 ms

jquery.js

42 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 90% of them (26 requests) were addressed to the original Colorizer.org, 7% (2 requests) were made to Paypalobjects.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Colorizer.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 188.2 kB (32%)

Content Size

595.5 kB

After Optimization

407.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Colorizer.org main page is 595.5 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. 45% of websites need less resources to load. Images take 280.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 19.2 kB

  • Original 25.0 kB
  • After minification 17.4 kB
  • After compression 5.8 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 7.6 kB, which is 30% 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 19.2 kB or 77% of the original size.

Image Optimization

-56%

Potential reduce by 157.0 kB

  • Original 280.2 kB
  • After minification 123.3 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, Colorizer needs image optimization as it can save up to 157.0 kB or 56% 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 8.2 kB

  • Original 275.8 kB
  • After minification 275.6 kB
  • After compression 267.6 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

-27%

Potential reduce by 3.8 kB

  • Original 14.5 kB
  • After minification 14.2 kB
  • After compression 10.6 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. Colorizer.org needs all CSS files to be minified and compressed as it can save up to 3.8 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (50%)

Requests Now

28

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Colorizer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

colorizer.org

colorizer.org

46 ms

normalize.css

normalize.css

21 ms

jquery-ui.css

jquery-ui.css

39 ms

ui.normal.css

ui.normal.css

43 ms

jquery.js

jquery.js

42 ms

jquery.cookie.js

jquery.cookie.js

36 ms

lab.js

lab.js

60 ms

loader.js

loader.js

60 ms

js

js

73 ms

btn_donate_SM.gif

btn_donate_SM.gif

41 ms

rgb.png

rgb.png

27 ms

hsv.png

hsv.png

702 ms

hsl.png

hsl.png

28 ms

cmyk.png

cmyk.png

27 ms

yuv.png

yuv.png

583 ms

jquery-ui.js

jquery-ui.js

1724 ms

jquery.scrollTo.js

jquery.scrollTo.js

2704 ms

jquery.cookie.js

jquery.cookie.js

2704 ms

jquery.mousewheel.js

jquery.mousewheel.js

1700 ms

math.uuid.js

math.uuid.js

2707 ms

stacktrace.js

stacktrace.js

2708 ms

jsclr.js

jsclr.js

1740 ms

munsell.js

munsell.js

3727 ms

delegates.js

delegates.js

3707 ms

common.js

common.js

2727 ms

pixel.gif

pixel.gif

3 ms

ui-icons_888888_256x240.png

ui-icons_888888_256x240.png

1938 ms

pbar-ani.gif

pbar-ani.gif

1937 ms

ui-icons_454545_256x240.png

ui-icons_454545_256x240.png

957 ms

Accessibility Review

colorizer.org accessibility score

86

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

colorizer.org best practices score

58

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

colorizer.org SEO score

99

Search Engine Optimization Advices

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 Colorizer.org 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 Colorizer.org 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

colorizer.org

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