Tools & Wizards About Us
51itjob.net screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

51itjob.net

IT人才输送,IT人才定制,企业高端人才服务商_IT就业网

Page Load Speed

10.4 sec in total

First Response

1.1 sec

Resources Loaded

9.1 sec

Page Rendered

274 ms

51itjob.net screenshot

About Website

Welcome to 51itjob.net homepage info - get ready to check 51 Itjob best content right away, or after learning these important things about 51itjob.net

IT就业网提供 网络工程师、售前工程师、售后工程师、技术支持、数据库管理、数据分析工程师、系统运维、高级软件工程师、软件工程师、Java开发、程序员、前端开发工程师、UI设计师、AI、物联网、大数据工程师、云计算工程师、云服务工程等IT方向IT人才

Visit 51itjob.net

Key Findings

We analyzed 51itjob.net page load time and found that the first response time was 1.1 sec and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

51itjob.net performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

51itjob.net

1061 ms

jquery.1.11.1.js

1889 ms

main.js

1101 ms

style.css

1375 ms

iconfont.css

2046 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 52% of them (29 requests) were addressed to the original 51itjob.net, 46% (26 requests) were made to Ithunting.com and 2% (1 request) were made to . The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain 51itjob.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 47.0 kB (14%)

Content Size

348.2 kB

After Optimization

301.2 kB

  • HTML
  • Images

In fact, the total size of 51itjob.net main page is 348.2 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. 35% of websites need less resources to load. Images take 319.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 23.7 kB

  • Original 28.7 kB
  • After minification 23.0 kB
  • After compression 5.1 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 5.7 kB, which is 20% 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 23.7 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 23.4 kB

  • Original 319.5 kB
  • After minification 296.1 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. 51 Itjob images are well optimized though.

Requests Breakdown

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

Requests Now

54

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Itjob. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

51itjob.net

51itjob.net

1061 ms

jquery.1.11.1.js

jquery.1.11.1.js

1889 ms

main.js

main.js

1101 ms

style.css

style.css

1375 ms

iconfont.css

iconfont.css

2046 ms

msgbox.js

msgbox.js

1416 ms

msgbox.css

msgbox.css

1300 ms

cookies.js

cookies.js

1500 ms

index.css

index.css

1795 ms

index.js

index.js

1635 ms

captcha.css

captcha.css

1695 ms

md5.js

md5.js

1855 ms

config.js

config.js

1898 ms

base64.js

base64.js

2006 ms

jq-captcha.js

jq-captcha.js

2075 ms

emoji-list-with-image.js

emoji-list-with-image.js

4050 ms

punycode.js

punycode.js

2291 ms

emoji.js

emoji.js

2194 ms

top.js

top.js

2217 ms

friendLink.js

friendLink.js

2049 ms

5352_1638519164759.png

5352_1638519164759.png

1167 ms

icon-long.png

icon-long.png

222 ms

50_1718681358445.jpg

50_1718681358445.jpg

1934 ms

50_1712037099887.jpg

50_1712037099887.jpg

1292 ms

10074_1638462745678.png

10074_1638462745678.png

2067 ms

3123_1638522514767.svg

3123_1638522514767.svg

1297 ms

50_1721900804233.jpg

50_1721900804233.jpg

1318 ms

112_1708418577259.png

112_1708418577259.png

1387 ms

50_1712037441339.jpg

50_1712037441339.jpg

1518 ms

50_1712037377600.jpg

50_1712037377600.jpg

1522 ms

50_1712037520352.jpg

50_1712037520352.jpg

1548 ms

3060_1638521933097.png

3060_1638521933097.png

1606 ms

4_1545983704835.jpg

4_1545983704835.jpg

2190 ms

defaultUserIco.jpg

defaultUserIco.jpg

1744 ms

50_1721900699818.jpg

50_1721900699818.jpg

2037 ms

7178_1638250729979.png

7178_1638250729979.png

2066 ms

10574_1638500472476.jpg

10574_1638500472476.jpg

1970 ms

8038_1638358301555.png

8038_1638358301555.png

2772 ms

50_1721901163695.png

50_1721901163695.png

2415 ms

50_1721901267409.jpg

50_1721901267409.jpg

2248 ms

50_1721901475199.jpg

50_1721901475199.jpg

2267 ms

50_1721901750878.png

50_1721901750878.png

2298 ms

7167_1638250394788.png

7167_1638250394788.png

2951 ms

6615_1638188580800.png

6615_1638188580800.png

2482 ms

6462_1638094287182.png

6462_1638094287182.png

2707 ms

6055_1638069304082.png

6055_1638069304082.png

2537 ms

7627_1638274936562.png

7627_1638274936562.png

2640 ms

logo.png

logo.png

246 ms

hot-icon.png

hot-icon.png

362 ms

pupBackground.png

pupBackground.png

707 ms

banner.png

banner.png

4177 ms

down-icon.png

down-icon.png

198 ms

kdGQezS6rb0UYhkZHG4xXSi+gCSahHNSMuyvzPSoh0AAA==

kdGQezS6rb0UYhkZHG4xXSi+gCSahHNSMuyvzPSoh0AAA==

27 ms

icon-join.png

icon-join.png

219 ms

wx.png

wx.png

197 ms

wx_account.png

wx_account.png

211 ms

Accessibility Review

51itjob.net accessibility score

57

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

51itjob.net 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

High

Missing source maps for large first-party JavaScript

SEO Factors

51itjob.net SEO score

82

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

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

High

Tap targets are not sized appropriately

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 51itjob.net 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 51itjob.net 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

51itjob.net

Open Graph description is not detected on the main page of 51 Itjob. 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: