Access b3log.org. B3log - 平等•自由•奔放的开源社区。目前 B3log 已经开源了多款产品：Sym、Solo、Pipe、Vditor、Lute、思源笔记等，欢迎大家加入，贡献开源。

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value2,540 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.597

11/100

15%

TTI (Time to Interactive)

Value6.7 s

57/100

10%

b3log.org

4638 ms

css

1494 ms

style.css

314 ms

timeline.css

530 ms

jquery.fancybox.css

532 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 93% of them (65 requests) were addressed to the original B3log.org, 3% (2 requests) were made to Hm.baidu.com and 1% (1 request) were made to Fonts.useso.com. The less responsive or slowest element that took the longest time to load (5.9 sec) belongs to the original domain B3log.org.

Content Size

2.1 MB

After Optimization

1.8 MB

In fact, the total size of B3log.org main page is 2.1 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. 60% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 68.0 kB

Original 79.2 kB
After minification 61.8 kB
After compression 11.2 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 17.3 kB, which is 22% 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 68.0 kB or 86% of the original size.

Image Optimization

-6%

Potential reduce by 107.7 kB

Original 1.9 MB
After minification 1.8 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. B3log images are well optimized though.

JavaScript Optimization

-80%

Potential reduce by 119.3 kB

Original 149.7 kB
After minification 104.3 kB
After compression 30.4 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 119.3 kB or 80% of the original size.

CSS Optimization

-80%

Potential reduce by 32.6 kB

Original 40.7 kB
After minification 36.3 kB
After compression 8.1 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. B3log.org needs all CSS files to be minified and compressed as it can save up to 32.6 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of B3log. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise B3log.org 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 B3log.org main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

b3log.org

Open Graph description is not detected on the main page of B3log. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

B3log - 平等•自由•奔放的开源社区。目前 B3log 已经开源了多款产品：Sym、Solo、Pipe、Vditor、Lute、思源笔记等，欢迎大家加入，贡献开源。

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

b3log.org

css

style.css

timeline.css

jquery.fancybox.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

b3log.org

css

style.css

timeline.css

jquery.fancybox.css

jquery.min.js

timeline-min.js

jquery.fancybox.pack.js

common.js

hm.js

line-s.png

share.png

finding.jpg

metro-hot.jpg

timeline.jpg

ease.png

mobile.png

andrea.jpg

classic.png

community.png

favourite.gif

tree-house.jpg

i-nove.jpg

neoease.png

owmx.png

bruce.gif

bootstyle.jpg

dashu03.jpg

community-bubbles.png

dot-b.jpg

shawn.jpg

coda.jpg

5styles.png

idream.jpg

ajax-loader.gif

RC-QQ.png

getstarted.jpg

logo.png

favicon-90.png

daniel.jpg

vanessa.jpg

lamb.png

dx.jpg