Tools & Wizards About Us

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 77

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

391job.com

BB视讯·(中国)游戏官网

Page Load Speed

57.4 sec in total

First Response

5.6 sec

Resources Loaded

51.7 sec

Page Rendered

235 ms

About Website

Visit 391job.com now to see the best up-to-date 391 Job content and also check out these interesting facts you probably never knew about 391job.com

BB视讯(www.391job.com)全称北京北控生态建设集团有限公司成立于1996年，是国家级高新技术企业，拥有北京市生态重点实验室等研发平台，凭借先进的生态治理与修复技术，超前的规划设计实力，完整的产业链条，全面的工程资质，强大的建设体系在生态领域成为国内知名的集团化企业。

Visit 391job.com

Key Findings

We analyzed 391job.com page load time and found that the first response time was 5.6 sec and then it took 51.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 11 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

391job.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

Network Requests Diagram

391job.com

5550 ms

391.jjoobb.cn

5414 ms

global.css

59 ms

areaIndex.css

4655 ms

showDilog.css

4782 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original 391job.com, 68% (49 requests) were made to Image.jjoobb.cn and 21% (15 requests) were made to Imga.jjoobb.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Image.jjoobb.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 295.7 kB (59%)

Content Size

499.9 kB

After Optimization

204.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 391job.com main page is 499.9 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. 25% of websites need less resources to load. Javascripts take 248.1 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 54.4 kB

  • Original 64.2 kB
  • After minification 50.0 kB
  • After compression 9.8 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 14.2 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 54.4 kB or 85% of the original size.

Image Optimization

-18%

Potential reduce by 25.5 kB

  • Original 144.9 kB
  • After minification 119.4 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, 391 Job needs image optimization as it can save up to 25.5 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 180.2 kB

  • Original 248.1 kB
  • After minification 214.0 kB
  • After compression 67.9 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 180.2 kB or 73% of the original size.

CSS Optimization

-83%

Potential reduce by 35.5 kB

  • Original 42.7 kB
  • After minification 37.2 kB
  • After compression 7.2 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. 391job.com needs all CSS files to be minified and compressed as it can save up to 35.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (50%)

Requests Now

58

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 391 Job. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

391job.com accessibility score

91

Accessibility Issues

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

Best Practices

391job.com best practices score

77

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

391job.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 391job.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that 391job.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

Open Graph description is not detected on the main page of 391 Job. 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: