Tools & Wizards About Us
chromagen.us screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

chromagen.us

NISGAV - ChromaGen™ Lenses for Color Blindness and Dyslexia | Official Producer and Supplier | chromagen.us

Page Load Speed

1.9 sec in total

First Response

152 ms

Resources Loaded

1.1 sec

Page Rendered

646 ms

chromagen.us screenshot

About Website

Click here to check amazing Chroma Gen content. Otherwise, check out these important facts you probably never knew about chromagen.us

Chromagen Lenses for color blindness & dyslexia. Pass Ishihara, Farnsworth, and Lantern tests for pilots, coast guard, and more. Buy official lenses online.

Visit chromagen.us

Key Findings

We analyzed Chromagen.us page load time and found that the first response time was 152 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

chromagen.us performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

8/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value1,980 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

chromagen.us

152 ms

chromagen.us

330 ms

css

36 ms

jquery-3.5.1.slim.min.js

23 ms

popper.min.js

29 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 38% of them (20 requests) were addressed to the original Chromagen.us, 13% (7 requests) were made to Apis.google.com and 13% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (368 ms) belongs to the original domain Chromagen.us.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.2 kB (9%)

Content Size

1.1 MB

After Optimization

955.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chromagen.us main page is 1.1 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. 45% of websites need less resources to load. Images take 613.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 35.7 kB

  • Original 48.8 kB
  • After minification 42.6 kB
  • After compression 13.1 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 6.2 kB, which is 13% 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 35.7 kB or 73% of the original size.

Image Optimization

-4%

Potential reduce by 23.6 kB

  • Original 613.9 kB
  • After minification 590.3 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. Chroma Gen images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 24.1 kB

  • Original 342.7 kB
  • After minification 342.7 kB
  • After compression 318.6 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

-29%

Potential reduce by 13.8 kB

  • Original 47.6 kB
  • After minification 47.6 kB
  • After compression 33.8 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. Chromagen.us needs all CSS files to be minified and compressed as it can save up to 13.8 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (53%)

Requests Now

49

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chroma Gen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chromagen.us

chromagen.us

152 ms

chromagen.us

chromagen.us

330 ms

css

css

36 ms

jquery-3.5.1.slim.min.js

jquery-3.5.1.slim.min.js

23 ms

popper.min.js

popper.min.js

29 ms

bootstrap.min.css

bootstrap.min.css

191 ms

stylenew.css

stylenew.css

184 ms

bootstrap.min.js

bootstrap.min.js

242 ms

platform.js

platform.js

22 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

6 ms

fbevents.js

fbevents.js

77 ms

BuyCromaGenLenses_Cover.png

BuyCromaGenLenses_Cover.png

245 ms

ChromaGen_512x512px.jpg

ChromaGen_512x512px.jpg

198 ms

Chromagen_Lenses_1_in_bottle_Ishihara_Test_Magenta.JPG

Chromagen_Lenses_1_in_bottle_Ishihara_Test_Magenta.JPG

136 ms

ChromagenGlassesNew.png

ChromagenGlassesNew.png

197 ms

QR-Chromagen-Combined-iOS-Android-Huawei.png

QR-Chromagen-Combined-iOS-Android-Huawei.png

206 ms

QR-Chromagen-iOS-Android-withLogo.jpg

QR-Chromagen-iOS-Android-withLogo.jpg

318 ms

IconAppstore.jpg

IconAppstore.jpg

220 ms

IconHuaweiGallery.jpg

IconHuaweiGallery.jpg

247 ms

IconGooglePlay.jpg

IconGooglePlay.jpg

249 ms

email.gif

email.gif

262 ms

facebook-icon.png

facebook-icon.png

279 ms

twitter-icon.png

twitter-icon.png

315 ms

instagram-icon.png

instagram-icon.png

315 ms

cgenlensesbluelogo.png

cgenlensesbluelogo.png

368 ms

telegramiconsmall.png

telegramiconsmall.png

326 ms

v2.zopim.com

v2.zopim.com

96 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

50 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

69 ms

subscribe_embed

subscribe_embed

102 ms

1840664589489691

1840664589489691

160 ms

postmessageRelay

postmessageRelay

75 ms

btn_paynowCC_LG.gif

btn_paynowCC_LG.gif

35 ms

asset_composer.js

asset_composer.js

85 ms

pixel.gif

pixel.gif

64 ms

www-subscribe-embed_split_v0.css

www-subscribe-embed_split_v0.css

13 ms

www-subscribe-embed_v0.js

www-subscribe-embed_v0.js

23 ms

AIdro_mwF6EzgxZnh8TDcURjBuBMmRLivNvpau0J3PEn3bkE620=s48-c-k-c0x00ffffff-no-rj

AIdro_mwF6EzgxZnh8TDcURjBuBMmRLivNvpau0J3PEn3bkE620=s48-c-k-c0x00ffffff-no-rj

221 ms

subscribe_button_branded_lozenge.png

subscribe_button_branded_lozenge.png

22 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

10 ms

2254111616-postmessagerelay.js

2254111616-postmessagerelay.js

22 ms

rpc:shindig_random.js

rpc:shindig_random.js

17 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

7 ms

cb=gapi.loaded_2

cb=gapi.loaded_2

5 ms

border_3.gif

border_3.gif

5 ms

subscribe_embed

subscribe_embed

38 ms

spacer.gif

spacer.gif

20 ms

bubbleSprite_3.png

bubbleSprite_3.png

4 ms

bubbleDropR_3.png

bubbleDropR_3.png

6 ms

bubbleDropB_3.png

bubbleDropB_3.png

9 ms

www-subscribe-embed-card_v0.css

www-subscribe-embed-card_v0.css

3 ms

www-subscribe-embed-card_v0.js

www-subscribe-embed-card_v0.js

5 ms

Accessibility Review

chromagen.us accessibility score

80

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

<frame> or <iframe> elements do not have a title

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

chromagen.us 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

chromagen.us SEO score

100

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chromagen.us can be misinterpreted by Google and other search engines. Our service has detected that English 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 Chromagen.us main page’s claimed encoding is iso-8859-1. 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

chromagen.us

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