Tools & Wizards About Us
pcblx.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

pcblx.com

PCB抄板界的中流砥柱/芯片解密专家，资深电路板抄板公司-联邦科技

Page Load Speed

26.8 sec in total

First Response

1.1 sec

Resources Loaded

25.1 sec

Page Rendered

546 ms

pcblx.com screenshot

About Website

Click here to check amazing Pcblx content. Otherwise, check out these important facts you probably never knew about pcblx.com

拥有10年产品仿制开发经验，专业提供PCB抄板、抄板、PCB设计、芯片解密、IC反向设计、软硬件开发、方案开发等技术服务，曾在幕后为国内众多抄板公司解决无数疑难项目，至今，仍未有项目难倒联邦科技。

Visit pcblx.com

Key Findings

We analyzed Pcblx.com page load time and found that the first response time was 1.1 sec and then it took 25.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

pcblx.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.191

64/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

pcblx.com

1095 ms

www.pcblx.com

1028 ms

bootstrap.min.css

623 ms

style.css

527 ms

index.css

536 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 54% of them (36 requests) were addressed to the original Pcblx.com, 39% (26 requests) were made to Www-x-pcblx-x-com.img.addlink.cn and 3% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source V1.cnzz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 248.5 kB (12%)

Content Size

2.0 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pcblx.com main page is 2.0 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. 35% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 19.4 kB

  • Original 26.1 kB
  • After minification 21.5 kB
  • After compression 6.7 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 4.6 kB, which is 18% 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 19.4 kB or 74% of the original size.

Image Optimization

-10%

Potential reduce by 180.0 kB

  • Original 1.8 MB
  • After minification 1.7 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. Pcblx images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 38.6 kB

  • Original 87.2 kB
  • After minification 87.2 kB
  • After compression 48.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 38.6 kB or 44% of the original size.

CSS Optimization

-30%

Potential reduce by 10.5 kB

  • Original 34.7 kB
  • After minification 34.7 kB
  • After compression 24.2 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. Pcblx.com needs all CSS files to be minified and compressed as it can save up to 10.5 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (16%)

Requests Now

37

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pcblx. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pcblx.com

pcblx.com

1095 ms

www.pcblx.com

www.pcblx.com

1028 ms

bootstrap.min.css

bootstrap.min.css

623 ms

style.css

style.css

527 ms

index.css

index.css

536 ms

kefu2021.js

kefu2021.js

541 ms

fun.js

fun.js

544 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

1071 ms

bootstrap.min.js

bootstrap.min.js

849 ms

xss.min.js

xss.min.js

844 ms

20543853.js

20543853.js

340 ms

hm.js

hm.js

1326 ms

lb_logo.png

lb_logo.png

232 ms

banner-1.jpg

banner-1.jpg

227 ms

banner-3.jpg

banner-3.jpg

230 ms

tip.png

tip.png

431 ms

about1.jpg

about1.jpg

433 ms

index_service.jpg

index_service.jpg

458 ms

zixun_jiaotong.png

zixun_jiaotong.png

459 ms

zixun_yiliao.png

zixun_yiliao.png

459 ms

zixun_dianlu.png

zixun_dianlu.png

651 ms

zixun_tongxun.png

zixun_tongxun.png

651 ms

bg1.jpg

bg1.jpg

664 ms

tip.jpg

tip.jpg

680 ms

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686 ms

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687 ms

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868 ms

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876 ms

PCB%E6%B7%B7%E5%8E%8B%E6%9D%BF%E5%9B%BE%E7%89%87.jpg

PCB%E6%B7%B7%E5%8E%8B%E6%9D%BF%E5%9B%BE%E7%89%87.jpg

890 ms

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906 ms

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%811.jpg

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913 ms

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913 ms

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%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8112.jpg

1086 ms

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8117.jpg

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8117.jpg

1096 ms

qq_white.png

qq_white.png

1118 ms

phone_white.png

phone_white.png

1133 ms

phone1_white.png

phone1_white.png

1142 ms

weixin_white.png

weixin_white.png

1142 ms

banner-1.jpg

banner-1.jpg

3951 ms

banner-3.jpg

banner-3.jpg

3130 ms

lb_logo.png

lb_logo.png

1218 ms

tip.png

tip.png

537 ms

about1.jpg

about1.jpg

1060 ms

z_stat.php

z_stat.php

19570 ms

index_service.jpg

index_service.jpg

1012 ms

zixun_jiaotong.png

zixun_jiaotong.png

1244 ms

zixun_yiliao.png

zixun_yiliao.png

1720 ms

zixun_tongxun.png

zixun_tongxun.png

1318 ms

zixun_dianlu.png

zixun_dianlu.png

1337 ms

bg1.jpg

bg1.jpg

1773 ms

tip.jpg

tip.jpg

1540 ms

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1554 ms

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1741 ms

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1603 ms

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1615 ms

PCB%E6%B7%B7%E5%8E%8B%E6%9D%BF%E5%9B%BE%E7%89%87.jpg

PCB%E6%B7%B7%E5%8E%8B%E6%9D%BF%E5%9B%BE%E7%89%87.jpg

3239 ms

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%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8119.jpg

1779 ms

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%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%811.jpg

1820 ms

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8111.jpg

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8111.jpg

1838 ms

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8112.jpg

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8112.jpg

1848 ms

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8117.jpg

%E6%8A%80%E6%9C%AF%E6%94%AF%E6%8C%8117.jpg

1889 ms

qq_white.png

qq_white.png

1883 ms

phone_white.png

phone_white.png

2049 ms

phone1_white.png

phone1_white.png

2096 ms

weixin_white.png

weixin_white.png

2110 ms

hm.gif

hm.gif

304 ms

weixin_han.jpg

weixin_han.jpg

2324 ms

Accessibility Review

pcblx.com accessibility score

59

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Image elements do not have [alt] attributes

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

pcblx.com 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

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

pcblx.com SEO score

90

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

Image elements do not have [alt] attributes

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

    ZH

  • Language Claimed

    EN

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pcblx.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Pcblx.com main page’s claimed encoding is gb2312. 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

pcblx.com

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