Tools & Wizards About Us
dc-contactor.net screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

dc-contactor.net

Dc Contactor,12V/24v dc contactor - China Nanfeng Electric

Page Load Speed

2.5 sec in total

First Response

405 ms

Resources Loaded

1.7 sec

Page Rendered

385 ms

dc-contactor.net screenshot

About Website

Click here to check amazing Dc Contactor content. Otherwise, check out these important facts you probably never knew about dc-contactor.net

China Nanfeng Electric is one of the leading Electric Appliance manufacturers in China, specialized in designing and manufacturing of high quality DC contactors, power connectors, emergency disconnect...

Visit dc-contactor.net

Key Findings

We analyzed Dc-contactor.net page load time and found that the first response time was 405 ms and then it took 2.1 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

dc-contactor.net performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value4.6 s

71/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

dc-contactor.net

405 ms

www.dc-contactor.com

538 ms

css

43 ms

shared.min.css

184 ms

style.css

258 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dc-contactor.net, 84% (36 requests) were made to Dc-contactor.com and 7% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (755 ms) relates to the external source Dc-contactor.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 85.8 kB (5%)

Content Size

1.6 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dc-contactor.net main page is 1.6 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. 50% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 22.3 kB

  • Original 29.1 kB
  • After minification 25.4 kB
  • After compression 6.8 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 3.7 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 22.3 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 13.4 kB

  • Original 1.3 MB
  • After minification 1.3 MB

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. Dc Contactor images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 36.7 kB

  • Original 171.9 kB
  • After minification 171.9 kB
  • After compression 135.1 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 36.7 kB or 21% of the original size.

CSS Optimization

-27%

Potential reduce by 13.4 kB

  • Original 48.9 kB
  • After minification 48.9 kB
  • After compression 35.6 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. Dc-contactor.net needs all CSS files to be minified and compressed as it can save up to 13.4 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (14%)

Requests Now

36

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dc Contactor. 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

dc-contactor.net

dc-contactor.net

405 ms

www.dc-contactor.com

www.dc-contactor.com

538 ms

css

css

43 ms

shared.min.css

shared.min.css

184 ms

style.css

style.css

258 ms

shared.min.js

shared.min.js

502 ms

site.js

site.js

299 ms

logo.png

logo.png

298 ms

25101638118.jpg

25101638118.jpg

475 ms

nf-banner3.jpg

nf-banner3.jpg

408 ms

nf-banner2.jpg

nf-banner2.jpg

448 ms

DC-Contactor.jpg

DC-Contactor.jpg

391 ms

Emergency-Switch.jpg

Emergency-Switch.jpg

405 ms

POWER-CONNECTOR.jpg

POWER-CONNECTOR.jpg

522 ms

home-company.jpg

home-company.jpg

540 ms

p1.jpg

p1.jpg

478 ms

p2.jpg

p2.jpg

513 ms

p3.jpg

p3.jpg

543 ms

p4.jpg

p4.jpg

547 ms

p5.jpg

p5.jpg

563 ms

p6.jpg

p6.jpg

578 ms

p7.jpg

p7.jpg

588 ms

p8.jpg

p8.jpg

609 ms

jquery.min.js

jquery.min.js

644 ms

moblenav.js

moblenav.js

615 ms

js

js

46 ms

js

js

95 ms

p9.jpg

p9.jpg

625 ms

p10.jpg

p10.jpg

640 ms

p11.jpg

p11.jpg

654 ms

p12.jpg

p12.jpg

710 ms

22141440119.jpg

22141440119.jpg

755 ms

What_is_a_DC_Contactor.jpg

What_is_a_DC_Contactor.jpg

711 ms

development-history-of-high-voltage-dc-relay-contactor.jpg

development-history-of-high-voltage-dc-relay-contactor.jpg

711 ms

what-is-the-resistance-of-the-contactor-coil.jpg

what-is-the-resistance-of-the-contactor-coil.jpg

737 ms

company-bg.png

company-bg.png

481 ms

captcha

captcha

497 ms

logo-sm.jpg

logo-sm.jpg

497 ms

weixin.jpg

weixin.jpg

513 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

15 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

20 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

25 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

486 ms

Accessibility Review

dc-contactor.net accessibility score

80

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

[aria-*] attributes do not match their roles

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

Buttons do not have an accessible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

dc-contactor.net best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dc-contactor.net SEO score

86

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dc-contactor.net 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 Dc-contactor.net 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

dc-contactor.net

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