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18gem.com screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

18gem.com

Page Load Speed

81.9 sec in total

First Response

1.7 sec

Resources Loaded

79.9 sec

Page Rendered

355 ms

18gem.com screenshot

About Website

Click here to check amazing 18 Gem content. Otherwise, check out these important facts you probably never knew about 18gem.com

中国珠宝网,中国最大的珠宝网站！珠宝门户网站中国珠宝网,中国珠宝市场及时报道,珠宝展会信息全面跟踪,珠宝企业加盟,珠宝代理商名录,珠宝行业门户平台。

Visit 18gem.com

Key Findings

We analyzed 18gem.com page load time and found that the first response time was 1.7 sec and then it took 80.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

18gem.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

68/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.447

20/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

18gem.com

1686 ms

www.58gem.com

6460 ms

style.css

3420 ms

index.css

1053 ms

catalog.css

2822 ms

Our browser made a total of 117 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original 18gem.com, 86% (101 requests) were made to 58gem.com and 3% (3 requests) were made to Image.9fjob.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source 58gem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 508.3 kB (38%)

Content Size

1.3 MB

After Optimization

839.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 18gem.com main page is 1.3 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. 30% of websites need less resources to load. Images take 756.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 63.3 kB

  • Original 79.5 kB
  • After minification 74.4 kB
  • After compression 16.1 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. 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 63.3 kB or 80% of the original size.

Image Optimization

-9%

Potential reduce by 69.6 kB

  • Original 756.0 kB
  • After minification 686.3 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. 18 Gem images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 349.8 kB

  • Original 480.1 kB
  • After minification 362.3 kB
  • After compression 130.3 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 349.8 kB or 73% of the original size.

CSS Optimization

-79%

Potential reduce by 25.5 kB

  • Original 32.4 kB
  • After minification 29.2 kB
  • After compression 6.9 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. 18gem.com needs all CSS files to be minified and compressed as it can save up to 25.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (37%)

Requests Now

111

After Optimization

70

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 18 Gem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

18gem.com

18gem.com

1686 ms

www.58gem.com

www.58gem.com

6460 ms

style.css

style.css

3420 ms

index.css

index.css

1053 ms

catalog.css

catalog.css

2822 ms

lang.js

lang.js

1437 ms

config_common_page.js

config_common_page.js

4417 ms

MSClass.js

MSClass.js

1824 ms

admember.js

admember.js

1949 ms

A88.js

A88.js

2210 ms

A99.js

A99.js

2415 ms

A100.js

A100.js

2691 ms

9fjob.js

9fjob.js

6289 ms

logo.js

logo.js

2146 ms

index.js

index.js

8017 ms

marquee.js

marquee.js

2527 ms

Statistics.js

Statistics.js

2980 ms

head_color.png

head_color.png

2986 ms

15-54-47-42-1.png

15-54-47-42-1.png

983 ms

search.gif

search.gif

1949 ms

search_m.gif

search_m.gif

440 ms

19-39-27-51-1.jpg

19-39-27-51-1.jpg

20072 ms

093850431.jpg

093850431.jpg

19469 ms

09-41-14-21-209.jpg

09-41-14-21-209.jpg

20071 ms

19-46-35-53-1.jpg

19-46-35-53-1.jpg

7697 ms

16-08-56-35-209.jpg

16-08-56-35-209.jpg

20072 ms

10-40-34-98-1.jpg

10-40-34-98-1.jpg

20072 ms

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10-55-54-77-1.jpg

20073 ms

num_18.png

num_18.png

19783 ms

num_19.png

num_19.png

18904 ms

1246 ms

20-27-38-67-1.jpg

20-27-38-67-1.jpg

20269 ms

jquery-1.7.1.js

jquery-1.7.1.js

12310 ms

ScriptHelper.js

ScriptHelper.js

1974 ms

layout.css

layout.css

2735 ms

task.js.php

task.js.php

17177 ms

12-29-41-93-1.jpg

12-29-41-93-1.jpg

16244 ms

gemindex1.gif

gemindex1.gif

4633 ms

10-49-07-95-1.jpg

10-49-07-95-1.jpg

5870 ms

21-14-57-52-1.jpg

21-14-57-52-1.jpg

4608 ms

21-17-17-72-1.jpg

21-17-17-72-1.jpg

10712 ms

21-11-02-90-1.jpg

21-11-02-90-1.jpg

5270 ms

21-08-01-95-1.jpg

21-08-01-95-1.jpg

5607 ms

213006421.jpg

213006421.jpg

6274 ms

213223731.jpg

213223731.jpg

19999 ms

11-05-29-59-9689.jpg

11-05-29-59-9689.jpg

7639 ms

17-49-31-10-9682.jpg

17-49-31-10-9682.jpg

12386 ms

15-28-58-67-2887.gif

15-28-58-67-2887.gif

9791 ms

15-17-42-48-1.jpg.thumb.jpg

15-17-42-48-1.jpg.thumb.jpg

13175 ms

12-10-51-59-1.jpg.thumb.jpg

12-10-51-59-1.jpg.thumb.jpg

13350 ms

21-37-57-38-1.jpg.thumb.jpg

21-37-57-38-1.jpg.thumb.jpg

13049 ms

11-53-36-49-1.jpg.thumb.jpg

11-53-36-49-1.jpg.thumb.jpg

13386 ms

21-34-42-21-1.jpg.thumb.jpg

21-34-42-21-1.jpg.thumb.jpg

13521 ms

11-58-42-58-1.jpg.thumb.jpg

11-58-42-58-1.jpg.thumb.jpg

14433 ms

GIA.jpg

GIA.jpg

15938 ms

NGTC.jpg

NGTC.jpg

13867 ms

HRD.jpg

HRD.jpg

14796 ms

EGL.jpg

EGL.jpg

16884 ms

IGI.jpg

IGI.jpg

15140 ms

NGGC.jpg

NGGC.jpg

15488 ms

CTA.jpg

CTA.jpg

18893 ms

GJC.jpg

GJC.jpg

18027 ms

13-21-09-20-1.gif

13-21-09-20-1.gif

19990 ms

19-27-53-33-1.jpg

19-27-53-33-1.jpg

19558 ms

13-19-56-13-1.jpg

13-19-56-13-1.jpg

20304 ms

20-20-56-97-1.jpg

20-20-56-97-1.jpg

20217 ms

stat.php

stat.php

3087 ms

f.js

f.js

909 ms

20-34-43-75-1.jpg

20-34-43-75-1.jpg

20343 ms

18-57-38-51-1.jpg

18-57-38-51-1.jpg

19226 ms

stat.htm

stat.htm

246 ms

core.php

core.php

922 ms

19-05-16-61-1.jpg

19-05-16-61-1.jpg

19726 ms

19-06-12-44-1.jpg

19-06-12-44-1.jpg

20387 ms

9.gif

9.gif

1453 ms

acom

acom

1928 ms

19-10-43-35-1.jpg

19-10-43-35-1.jpg

20129 ms

19-11-40-78-1.jpg

19-11-40-78-1.jpg

19720 ms

19-16-07-29-1.jpg

19-16-07-29-1.jpg

19441 ms

19-16-37-20-1.jpg

19-16-37-20-1.jpg

20193 ms

19-37-37-51-1.jpg

19-37-37-51-1.jpg

16247 ms

19-38-40-54-1.jpg

19-38-40-54-1.jpg

16380 ms

19-42-21-27-1.jpg

19-42-21-27-1.jpg

17386 ms

19-41-48-88-1.jpg

19-41-48-88-1.jpg

15479 ms

19-40-49-85-1.jpg

19-40-49-85-1.jpg

15102 ms

19-40-16-36-1.jpg

19-40-16-36-1.jpg

14724 ms

19-39-39-34-1.jpg

19-39-39-34-1.jpg

19346 ms

20-39-30-86-1.jpg

20-39-30-86-1.jpg

20117 ms

20-40-30-44-1.jpg

20-40-30-44-1.jpg

16431 ms

nc_lg.gif

nc_lg.gif

14441 ms

netoo.gif

netoo.gif

14823 ms

nt.gif

nt.gif

14728 ms

58gemweixin.JPG

58gemweixin.JPG

20099 ms

ico_newcart.gif

ico_newcart.gif

13958 ms

ico_message.gif

ico_message.gif

12397 ms

ico_newchat.gif

ico_newchat.gif

13945 ms

vip.gif

vip.gif

12760 ms

11-46-59-72-1.jpg

11-46-59-72-1.jpg

14215 ms

menu_1.gif

menu_1.gif

13308 ms

menu_on1.gif

menu_on1.gif

15049 ms

menu_on2.gif

menu_on2.gif

14542 ms

menu_off1.gif

menu_off1.gif

13889 ms

menu_off2.gif

menu_off2.gif

14222 ms

search_input.gif

search_input.gif

13510 ms

search_line.gif

search_line.gif

12556 ms

menu_3.gif

menu_3.gif

13000 ms

box_head.gif

box_head.gif

12110 ms

foot_search.gif

foot_search.gif

11885 ms

foot_search_s.gif

foot_search_s.gif

12648 ms

toolbar_bg.gif

toolbar_bg.gif

19411 ms

toolbar_top.gif

toolbar_top.gif

11482 ms

user.gif

user.gif

11934 ms

ico_mobile.gif

ico_mobile.gif

17566 ms

o.htm

o.htm

775 ms

wh.js

wh.js

1490 ms

ac.js

ac.js

1297 ms

fp.htm

fp.htm

512 ms

Accessibility Review

18gem.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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

18gem.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

18gem.com SEO score

92

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 18gem.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 18gem.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

18gem.com

Open Graph description is not detected on the main page of 18 Gem. 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: