Tools & Wizards About Us
nb5.cn screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    95% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

nb5.cn

牛站长论坛

Page Load Speed

14.7 sec in total

First Response

1.7 sec

Resources Loaded

12.9 sec

Page Rendered

171 ms

nb5.cn screenshot

About Website

Click here to check amazing Nb 5 content for China. Otherwise, check out these important facts you probably never knew about nb5.cn

国内知名站长论坛,提供草根站长的网络安全防范,网站建设技术培训,计算机软件工具应用和网络推广方面的SEO技术交流

Visit nb5.cn

Key Findings

We analyzed Nb5.cn page load time and found that the first response time was 1.7 sec and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

nb5.cn performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

forum.php

1667 ms

style_1_common.css

4205 ms

style_1_forum_index.css

1391 ms

common.js

3302 ms

forum.js

3038 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 71% of them (25 requests) were addressed to the original Nb5.cn, 6% (2 requests) were made to Hm.baidu.com and 3% (1 request) were made to Discuz.gtimg.cn. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Nb5.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 317.0 kB (61%)

Content Size

519.7 kB

After Optimization

202.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nb5.cn main page is 519.7 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 241.7 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 24.6 kB

  • Original 33.6 kB
  • After minification 33.6 kB
  • After compression 9.0 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 24.6 kB or 73% of the original size.

Image Optimization

-6%

Potential reduce by 5.6 kB

  • Original 97.2 kB
  • After minification 91.5 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. Nb 5 images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 172.2 kB

  • Original 241.7 kB
  • After minification 234.5 kB
  • After compression 69.5 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 172.2 kB or 71% of the original size.

CSS Optimization

-78%

Potential reduce by 114.6 kB

  • Original 147.3 kB
  • After minification 144.2 kB
  • After compression 32.6 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. Nb5.cn needs all CSS files to be minified and compressed as it can save up to 114.6 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (55%)

Requests Now

33

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb 5. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

forum.php

forum.php

1667 ms

style_1_common.css

style_1_common.css

4205 ms

style_1_forum_index.css

style_1_forum_index.css

1391 ms

common.js

common.js

3302 ms

forum.js

forum.js

3038 ms

logging.js

logging.js

1402 ms

md5.js

md5.js

1028 ms

discuz_tips.js

discuz_tips.js

618 ms

db5d48fd-ea0d-4816-91b3-e80fb41ffe7b.js

db5d48fd-ea0d-4816-91b3-e80fb41ffe7b.js

3605 ms

background.png

background.png

413 ms

switch_width.png

switch_width.png

415 ms

logo.png

logo.png

819 ms

qq_login.gif

qq_login.gif

406 ms

collapsed_no.gif

collapsed_no.gif

398 ms

forum.gif

forum.gif

797 ms

forum_new.gif

forum_new.gif

804 ms

security.png

security.png

809 ms

px.png

px.png

807 ms

pn.png

pn.png

813 ms

nv.png

nv.png

1170 ms

qmenu.png

qmenu.png

1188 ms

nv_a.png

nv_a.png

1194 ms

search.png

search.png

1222 ms

pt_item.png

pt_item.png

1188 ms

chart.png

chart.png

1197 ms

titlebg.png

titlebg.png

1527 ms

h.js

h.js

939 ms

hm.gif

hm.gif

453 ms

stat.php

stat.php

1017 ms

stat.htm

stat.htm

209 ms

core.php

core.php

1250 ms

9.gif

9.gif

1014 ms

pic1.gif

pic1.gif

1285 ms

scrolltop.png

scrolltop.png

405 ms

app.gif

app.gif

901 ms

Accessibility Review

nb5.cn accessibility score

51

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

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

nb5.cn 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

nb5.cn SEO score

92

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

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 Nb5.cn 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 Nb5.cn 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

nb5.cn

Open Graph description is not detected on the main page of Nb 5. 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: