Tools & Wizards About Us
centerbbs.com screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

centerbbs.com

中央論壇 - CENTER BBS

Page Load Speed

4.9 sec in total

First Response

487 ms

Resources Loaded

4.2 sec

Page Rendered

165 ms

centerbbs.com screenshot

About Website

Click here to check amazing CENTER BBS content for Taiwan. Otherwise, check out these important facts you probably never knew about centerbbs.com

全方位的公共論壇。提供網友互相討論與交流，以繁體中文為主的網路平台。擁有優秀管理團隊，人性化的互動，最佳選擇的優質論壇！ ,中央論壇 - CENTER BBS

Visit centerbbs.com

Key Findings

We analyzed Centerbbs.com page load time and found that the first response time was 487 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

centerbbs.com performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value4.8 s

66/100

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

centerbbs.com

487 ms

forum.php

256 ms

adsbygoogle.js

102 ms

style_2_common.css

234 ms

style_2_forum_index.css

466 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 81% of them (48 requests) were addressed to the original Centerbbs.com, 3% (2 requests) were made to Pagead2.googlesyndication.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Centerbbs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 74.4 kB (17%)

Content Size

445.3 kB

After Optimization

370.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centerbbs.com main page is 445.3 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. Javascripts take 351.5 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 32.3 kB

  • Original 42.8 kB
  • After minification 42.4 kB
  • After compression 10.6 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 32.3 kB or 75% of the original size.

Image Optimization

-20%

Potential reduce by 6.5 kB

  • Original 32.3 kB
  • After minification 25.8 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, CENTER BBS needs image optimization as it can save up to 6.5 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 35.4 kB

  • Original 351.5 kB
  • After minification 351.5 kB
  • After compression 316.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 173 B

  • Original 18.6 kB
  • After minification 18.6 kB
  • After compression 18.5 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. Centerbbs.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

54

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CENTER BBS. 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

centerbbs.com

centerbbs.com

487 ms

forum.php

forum.php

256 ms

adsbygoogle.js

adsbygoogle.js

102 ms

style_2_common.css

style_2_common.css

234 ms

style_2_forum_index.css

style_2_forum_index.css

466 ms

jquery.min.js

jquery.min.js

25 ms

common.js

common.js

698 ms

forum.js

forum.js

714 ms

logging.js

logging.js

761 ms

init.js

init.js

760 ms

show_ads_impl.js

show_ads_impl.js

231 ms

4.gif

4.gif

910 ms

smalllogo.gif

smalllogo.gif

111 ms

getpr.php

getpr.php

137 ms

switch_width.png

switch_width.png

264 ms

logo.png

logo.png

384 ms

ad468-60.gif

ad468-60.gif

322 ms

collapsed_no.gif

collapsed_no.gif

264 ms

forum.gif

forum.gif

279 ms

collapsed_yes.gif

collapsed_yes.gif

280 ms

50.gif

50.gif

909 ms

51.gif

51.gif

986 ms

68.gif

68.gif

987 ms

79.gif

79.gif

1000 ms

46.gif

46.gif

1017 ms

52.gif

52.gif

1131 ms

226.gif

226.gif

1132 ms

96.gif

96.gif

1229 ms

323.gif

323.gif

1230 ms

126.gif

126.gif

1246 ms

15.gif

15.gif

1267 ms

506.gif

506.gif

1354 ms

17.gif

17.gif

1355 ms

540.png

540.png

1471 ms

541.png

541.png

1473 ms

22.gif

22.gif

1491 ms

56.gif

56.gif

1517 ms

176.gif

176.gif

1577 ms

119.gif

119.gif

1578 ms

93.gif

93.gif

470 ms

356.gif

356.gif

484 ms

64.gif

64.gif

487 ms

504.gif

504.gif

1713 ms

facebook.gif

facebook.gif

1714 ms

zrt_lookup.html

zrt_lookup.html

48 ms

newarow.gif

newarow.gif

421 ms

bg.menu.png

bg.menu.png

429 ms

delimiter.bg.menu.png

delimiter.bg.menu.png

478 ms

search.png

search.png

477 ms

pt_item.png

pt_item.png

497 ms

chart.png

chart.png

575 ms

analytics.js

analytics.js

15 ms

scrolltop.png

scrolltop.png

595 ms

collect

collect

13 ms

collect

collect

24 ms

js

js

58 ms

93.gif

93.gif

1269 ms

356.gif

356.gif

1285 ms

64.gif

64.gif

1314 ms

Accessibility Review

centerbbs.com 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

centerbbs.com 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

centerbbs.com 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

    BIG5

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centerbbs.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 Centerbbs.com main page’s claimed encoding is big5. 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

centerbbs.com

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