Tools & Wizards About Us
dnc4u.com screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

dnc4u.com

DNC software : dead easy to use : RS232 transfer between CNC and PC

Page Load Speed

2.6 sec in total

First Response

404 ms

Resources Loaded

1.8 sec

Page Rendered

379 ms

dnc4u.com screenshot

About Website

Welcome to dnc4u.com homepage info - get ready to check DNC 4u best content right away, or after learning these important things about dnc4u.com

DNC software for easy RS232 transfer and dripfeeding to CNC machines, using real or virtual serial ports, USB to RS232 adapters, direct TCP/IP wireless RS232 and FTP. Includes code editor, file compar...

Visit dnc4u.com

Key Findings

We analyzed Dnc4u.com page load time and found that the first response time was 404 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

dnc4u.com performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

87/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

dnc4u.com

404 ms

gen_style.css

199 ms

jquery.cookiebar.css

202 ms

jquery.min.js

25 ms

jquery.cookiebar.js

201 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 83% of them (19 requests) were addressed to the original Dnc4u.com, 9% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (940 ms) belongs to the original domain Dnc4u.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 54.7 kB (45%)

Content Size

122.6 kB

After Optimization

67.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dnc4u.com main page is 122.6 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 60.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 12.9 kB

  • Original 16.6 kB
  • After minification 12.4 kB
  • After compression 3.7 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 4.2 kB, which is 26% 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 12.9 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 369 B

  • Original 41.5 kB
  • After minification 41.1 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. DNC 4u images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 38.2 kB

  • Original 60.3 kB
  • After minification 57.2 kB
  • After compression 22.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 38.2 kB or 63% of the original size.

CSS Optimization

-79%

Potential reduce by 3.3 kB

  • Original 4.2 kB
  • After minification 3.5 kB
  • After compression 885 B

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. Dnc4u.com needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (33%)

Requests Now

21

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DNC 4u. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

dnc4u.com

dnc4u.com

404 ms

gen_style.css

gen_style.css

199 ms

jquery.cookiebar.css

jquery.cookiebar.css

202 ms

jquery.min.js

jquery.min.js

25 ms

jquery.cookiebar.js

jquery.cookiebar.js

201 ms

analytics.js

analytics.js

264 ms

1_btts.jpg

1_btts.jpg

248 ms

pen-gif.gif

pen-gif.gif

417 ms

1_flashtest.gif

1_flashtest.gif

249 ms

1_bg.gif

1_bg.gif

253 ms

front_cnc.jpg

front_cnc.jpg

247 ms

1.gif

1.gif

250 ms

fdownload.jpg

fdownload.jpg

275 ms

fplatestnews.gif

fplatestnews.gif

260 ms

1welcome.gif

1welcome.gif

261 ms

trans.gif

trans.gif

220 ms

searchbar.gif

searchbar.gif

225 ms

searchicon.gif

searchicon.gif

221 ms

top.gif

top.gif

224 ms

tl_logo2.jpg

tl_logo2.jpg

245 ms

1_bg.jpg

1_bg.jpg

940 ms

1pattern.gif

1pattern.gif

936 ms

collect

collect

55 ms

Accessibility Review

dnc4u.com accessibility score

61

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.

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

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

Image elements do not have [alt] attributes

Best Practices

dnc4u.com best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dnc4u.com SEO score

62

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dnc4u.com 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 Dnc4u.com main page’s claimed encoding is . 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

dnc4u.com

Open Graph description is not detected on the main page of DNC 4u. 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: