Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

tranbbs.com

交通规划 | 城市规划 | 交通设计 | 行之道 - 聚合交通研究与实践新技术、新观点公益性学术交流自媒体平台

Page Load Speed

60.7 sec in total

First Response

9.5 sec

Resources Loaded

50.6 sec

Page Rendered

688 ms

tranbbs.com screenshot

About Website

Visit tranbbs.com now to see the best up-to-date Tranbbs content for China and also check out these interesting facts you probably never knew about tranbbs.com

聚合交通研究与实践新技术,新观点公益性学术交流自媒体平台

Visit tranbbs.com

Key Findings

We analyzed Tranbbs.com page load time and found that the first response time was 9.5 sec and then it took 51.3 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 were 6 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

tranbbs.com performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value670 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

tranbbs.com

9456 ms

reset.css

1217 ms

default_blue.css

2662 ms

jquery.min.js

9885 ms

jquery.sgallery.js

1243 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 76% of them (104 requests) were addressed to the original Tranbbs.com, 5% (7 requests) were made to Ubmcmm.baidustatic.com and 3% (4 requests) were made to Pos.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Tranbbs.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 517.2 kB (34%)

Content Size

1.5 MB

After Optimization

1.0 MB

In fact, the total size of Tranbbs.com main page is 1.5 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. 40% of websites need less resources to load. Images take 897.4 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 97.8 kB

  • Original 120.4 kB
  • After minification 111.2 kB
  • After compression 22.6 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 97.8 kB or 81% of the original size.

Image Optimization

-10%

Potential reduce by 86.0 kB

  • Original 897.4 kB
  • After minification 811.3 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. Tranbbs images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 284.7 kB

  • Original 443.1 kB
  • After minification 436.4 kB
  • After compression 158.3 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 284.7 kB or 64% of the original size.

CSS Optimization

-81%

Potential reduce by 48.6 kB

  • Original 60.3 kB
  • After minification 54.5 kB
  • After compression 11.7 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. Tranbbs.com needs all CSS files to be minified and compressed as it can save up to 48.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (30%)

Requests Now

127

After Optimization

89

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tranbbs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

tranbbs.com accessibility score

45

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

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

tranbbs.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tranbbs.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

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tranbbs.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 Tranbbs.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

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