Tools & Wizards About Us
bbs.ntpcb.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

bbs.ntpcb.com

逆天PCB论坛-逆天电子论坛-电子工程师俱乐部-中国PCB论坛-PCB封装库-NTPCB生活站-全球最大硬件开源网 - Powered by NTpcb

Page Load Speed

65.7 sec in total

First Response

13 sec

Resources Loaded

48.5 sec

Page Rendered

4.2 sec

bbs.ntpcb.com screenshot

About Website

Welcome to bbs.ntpcb.com homepage info - get ready to check Bbs NTpcb best content for China right away, or after learning these important things about bbs.ntpcb.com

电子技术论坛,PCB设计论坛,中国PCB论坛,pcb下载站

Visit bbs.ntpcb.com

Key Findings

We analyzed Bbs.ntpcb.com page load time and found that the first response time was 13 sec and then it took 52.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 22 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

bbs.ntpcb.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

1/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

bbs.ntpcb.com

12962 ms

pw_core.css

6496 ms

core.js

15280 ms

pw_ajax.js

2614 ms

liuv.cn.css

6794 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 76% of them (91 requests) were addressed to the original Bbs.ntpcb.com, 19% (23 requests) were made to Dl.ntpcb.com and 1% (1 request) were made to S95.cnzz.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Dl.ntpcb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 202.8 kB (72%)

Content Size

283.1 kB

After Optimization

80.3 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Bbs.ntpcb.com main page is 283.1 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. 20% of websites need less resources to load. HTML takes 194.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 156.6 kB

  • Original 194.5 kB
  • After minification 194.0 kB
  • After compression 37.9 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 156.6 kB or 80% of the original size.

Image Optimization

-18%

Potential reduce by 5.9 kB

  • Original 32.3 kB
  • After minification 26.5 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, Bbs NTpcb needs image optimization as it can save up to 5.9 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 40.3 kB

  • Original 56.2 kB
  • After minification 46.7 kB
  • After compression 15.9 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 40.3 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 55 (57%)

Requests Now

96

After Optimization

41

  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bbs NTpcb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bbs.ntpcb.com

bbs.ntpcb.com

12962 ms

pw_core.css

pw_core.css

6496 ms

core.js

core.js

15280 ms

pw_ajax.js

pw_ajax.js

2614 ms

liuv.cn.css

liuv.cn.css

6794 ms

ddsliderplayer.js

ddsliderplayer.js

12658 ms

Deploy.js

Deploy.js

578 ms

stat.php

stat.php

570 ms

global.js

global.js

8275 ms

adminview.js

adminview.js

8930 ms

app_global.js

app_global.js

1918 ms

float.js

float.js

1134 ms

zh_cn.js

zh_cn.js

464 ms

14_11267_825b1561148681c.jpg

14_11267_825b1561148681c.jpg

19540 ms

bg.jpg

bg.jpg

1419 ms

topbar.png

topbar.png

19074 ms

style.gif

style.gif

661 ms

logo.png

logo.png

19514 ms

select_arrow.gif

select_arrow.gif

659 ms

button.png

button.png

2302 ms

hot.gif

hot.gif

1151 ms

new.gif

new.gif

1415 ms

bd_logos.png

bd_logos.png

11096 ms

icon_on.gif

icon_on.gif

1846 ms

139sq.gif

139sq.gif

1907 ms

cate_fold.gif

cate_fold.gif

2294 ms

forum_new.gif

forum_new.gif

2381 ms

32.gif

32.gif

2738 ms

98.gif

98.gif

2724 ms

14.gif

14.gif

5337 ms

17.gif

17.gif

4786 ms

15.gif

15.gif

3170 ms

16.gif

16.gif

3619 ms

18.gif

18.gif

4080 ms

99.gif

99.gif

4659 ms

21.gif

21.gif

5113 ms

89.gif

89.gif

5238 ms

22.gif

22.gif

5573 ms

96.gif

96.gif

5663 ms

82.gif

82.gif

8276 ms

64.gif

64.gif

6052 ms

36.gif

36.gif

6083 ms

37.gif

37.gif

6480 ms

38.gif

38.gif

6483 ms

66.gif

66.gif

6919 ms

67.gif

67.gif

6892 ms

71.gif

71.gif

7318 ms

15_24223_311a8ff9215b5fd.jpg

15_24223_311a8ff9215b5fd.jpg

20450 ms

112_58871_2cf25e9171bd698.png

112_58871_2cf25e9171bd698.png

20451 ms

143_49761_2c27ee1a2ac14b0.jpg

143_49761_2c27ee1a2ac14b0.jpg

18588 ms

17_5746_32b41e6271cb0bf.png

17_5746_32b41e6271cb0bf.png

8823 ms

136_25828_bf1173ee9071763.jpg

136_25828_bf1173ee9071763.jpg

13741 ms

22_58017_52e7771f651e899.png

22_58017_52e7771f651e899.png

20422 ms

30_25670_750be5488789fda.png

30_25670_750be5488789fda.png

17546 ms

22_22659_456b1f5e2ab4714.png

22_22659_456b1f5e2ab4714.png

20414 ms

96_58238_0f5230ed02f22dd.png

96_58238_0f5230ed02f22dd.png

20414 ms

22_58568_509528d48ffbc24.png

22_58568_509528d48ffbc24.png

20414 ms

22_58568_ab8c9dc3df34603.png

22_58568_ab8c9dc3df34603.png

20414 ms

22_30558_fc5732e4b1f9c87.png

22_30558_fc5732e4b1f9c87.png

20413 ms

22_58692_b7eb08b1f3a10cc.png

22_58692_b7eb08b1f3a10cc.png

20414 ms

22_58568_9b26904624eca91.png

22_58568_9b26904624eca91.png

20414 ms

22_58568_39d9fc5f01b9c09.png

22_58568_39d9fc5f01b9c09.png

20414 ms

112.gif

112.gif

20414 ms

134.gif

134.gif

20414 ms

123.gif

123.gif

20413 ms

101.gif

101.gif

20402 ms

115.gif

115.gif

20402 ms

122.gif

122.gif

20402 ms

33.gif

33.gif

20402 ms

6.gif

6.gif

7245 ms

12.gif

12.gif

7571 ms

11.gif

11.gif

8226 ms

13.gif

13.gif

7379 ms

14.gif

14.gif

10362 ms

stat.htm

stat.htm

194 ms

core.php

core.php

958 ms

15.gif

15.gif

11520 ms

10.gif

10.gif

7956 ms

9.gif

9.gif

8389 ms

8.gif

8.gif

9200 ms

9.gif

9.gif

854 ms

init.php

init.php

19628 ms

3.gif

3.gif

9552 ms

23.gif

23.gif

9273 ms

21.gif

21.gif

9356 ms

31.gif

31.gif

9670 ms

app.gif

app.gif

2041 ms

5.gif

5.gif

11092 ms

25.gif

25.gif

9358 ms

27.gif

27.gif

9352 ms

29.gif

29.gif

8904 ms

26.gif

26.gif

8909 ms

28.gif

28.gif

8296 ms

30.gif

30.gif

8623 ms

32.gif

32.gif

8290 ms

logo.png

logo.png

15457 ms

qqonline.gif

qqonline.gif

10697 ms

navA.png

navA.png

8225 ms

bg_11.gif

bg_11.gif

8607 ms

bg_12.gif

bg_12.gif

8213 ms

searchA.png

searchA.png

8651 ms

search_input.png

search_input.png

8294 ms

down.png

down.png

8718 ms

search_btn.png

search_btn.png

8425 ms

colon.png

colon.png

8699 ms

anc.gif

anc.gif

9719 ms

hB.png

hB.png

8674 ms

gradual.png

gradual.png

19707 ms

listsNumber.gif

listsNumber.gif

9484 ms

gradual1.png

gradual1.png

9279 ms

icon.png

icon.png

9546 ms

icon.jpg

icon.jpg

9774 ms

bg-header_hd.gif

bg-header_hd.gif

13598 ms

bg-text.gif

bg-text.gif

8569 ms

zhaopin.gif

zhaopin.gif

11163 ms

qiuzhi.gif

qiuzhi.gif

8908 ms

h.png

h.png

9210 ms

old.gif

old.gif

9152 ms

top.png

top.png

9612 ms

close.gif

close.gif

9157 ms

Accessibility Review

bbs.ntpcb.com accessibility score

53

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.

High

Definition list items are not wrapped in <dl> elements

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

bbs.ntpcb.com 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

bbs.ntpcb.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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bbs.ntpcb.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Bbs.ntpcb.com main page’s claimed encoding is gbk. 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

bbs.ntpcb.com

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