Tools & Wizards About Us
jiagulun.com screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

jiagulun.com

甲骨论_大数据技术论坛|Python,Oracle,MySQL免费培训视频教程,MongoDB,Hadoop,Spark,大数据分析,OCP,OCM,DBA论坛,RAC,10g,11g,12c数据库,培训机构点评

Page Load Speed

8.7 sec in total

First Response

658 ms

Resources Loaded

7.8 sec

Page Rendered

205 ms

jiagulun.com screenshot

About Website

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

国内人气最高的数据库技术论坛，为Python开发者、DBA们提供一个自由开放的交流平台。大师级数据库专家在线答疑解惑，最新的Oracle教程、大数据技术，最热最实用的Oracle、MySQL、MongoDB、Hadoop、Spark技术，尽在甲骨论技术论坛。

Visit jiagulun.com

Key Findings

We analyzed Jiagulun.com page load time and found that the first response time was 658 ms and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

jiagulun.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value16.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,480 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

Network Requests Diagram

jiagulun.com

658 ms

www.jiagulun.com

1466 ms

style_7_common.css

1058 ms

style_7_portal_index.css

431 ms

common.js

876 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 78% of them (28 requests) were addressed to the original Jiagulun.com, 14% (5 requests) were made to Bdimg.share.baidu.com and 6% (2 requests) were made to Znsv.baidu.com. The less responsive or slowest element that took the longest time to load (5.3 sec) belongs to the original domain Jiagulun.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 313.0 kB (45%)

Content Size

691.3 kB

After Optimization

378.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jiagulun.com main page is 691.3 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. 30% of websites need less resources to load. Images take 403.8 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 97.7 kB

  • Original 107.6 kB
  • After minification 52.9 kB
  • After compression 9.9 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. This page needs HTML code to be minified as it can gain 54.7 kB, which is 51% 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 97.7 kB or 91% of the original size.

Image Optimization

-22%

Potential reduce by 90.7 kB

  • Original 403.8 kB
  • After minification 313.1 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, Jiagulun needs image optimization as it can save up to 90.7 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-59%

Potential reduce by 47.6 kB

  • Original 80.1 kB
  • After minification 75.1 kB
  • After compression 32.6 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 47.6 kB or 59% of the original size.

CSS Optimization

-77%

Potential reduce by 77.0 kB

  • Original 99.8 kB
  • After minification 98.1 kB
  • After compression 22.8 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. Jiagulun.com needs all CSS files to be minified and compressed as it can save up to 77.0 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (19%)

Requests Now

32

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jiagulun. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jiagulun.com

jiagulun.com

658 ms

www.jiagulun.com

www.jiagulun.com

1466 ms

style_7_common.css

style_7_common.css

1058 ms

style_7_portal_index.css

style_7_portal_index.css

431 ms

common.js

common.js

876 ms

portal.js

portal.js

448 ms

ping.js

ping.js

417 ms

home.php

home.php

216 ms

logo.png

logo.png

218 ms

ercode.jpg

ercode.jpg

5286 ms

135644clkyl3stxloo4rrs.jpg

135644clkyl3stxloo4rrs.jpg

4407 ms

7dec1e205cd24221309f4693dab88190.jpg

7dec1e205cd24221309f4693dab88190.jpg

217 ms

151238f97idih7d7dzw75h.png

151238f97idih7d7dzw75h.png

215 ms

093946g833acdzdoadugnu.png

093946g833acdzdoadugnu.png

427 ms

134211chsiizpcto7ia4xt.png

134211chsiizpcto7ia4xt.png

435 ms

common.gif

common.gif

646 ms

image_s.png

image_s.png

686 ms

digest_1.png

digest_1.png

854 ms

js

js

1195 ms

hscbar.png

hscbar.png

885 ms

header_icon.png

header_icon.png

1049 ms

title.png

title.png

1103 ms

subs.png

subs.png

2636 ms

hl_bg.gif

hl_bg.gif

2732 ms

invitation_pic.png

invitation_pic.png

1318 ms

arw_r.gif

arw_r.gif

1423 ms

noavatar_middle.gif

noavatar_middle.gif

1081 ms

noavatar_middle.gif

noavatar_middle.gif

971 ms

noavatar_middle.gif

noavatar_middle.gif

827 ms

shell_v2.js

shell_v2.js

992 ms

scrolltop.png

scrolltop.png

994 ms

ping

ping

295 ms

logger.js

logger.js

292 ms

bds_s_v2.js

bds_s_v2.js

573 ms

bdsstyle.css

bdsstyle.css

296 ms

r6.gif

r6.gif

422 ms

Accessibility Review

jiagulun.com accessibility score

64

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

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

jiagulun.com best practices score

67

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jiagulun.com SEO score

85

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

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

    UTF-8

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

jiagulun.com

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