Tools & Wizards About Us
sellercenter.io screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    35% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

sellercenter.io

SellerCenter - Top Shopify Stores & Suppliers | Amazon Top Sellers & Stores

Page Load Speed

6.4 sec in total

First Response

137 ms

Resources Loaded

4.6 sec

Page Rendered

1.6 sec

sellercenter.io screenshot

About Website

Click here to check amazing Seller Center content for China. Otherwise, check out these important facts you probably never knew about sellercenter.io

SellerCenter provides a complete list of top Shopify stores, AliExpress best sellers, Amazon top sellers, Wish best sellers, best Shopee seller, Lazada top sellers. With them, you can track your compe...

Visit sellercenter.io

Key Findings

We analyzed Sellercenter.io page load time and found that the first response time was 137 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sellercenter.io performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value7,430 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.068

96/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

sellercenter.io

137 ms

en

294 ms

jquery_1.12.4-wp_49edccea2e7ba985cadc9ba0531cbed1.js

796 ms

jquery-migrate.min_1.4.1_7121994eec5320fbe6586463bf9651c2.js

726 ms

style.min_5.2.12_80abe0410c6640e58fc1e18516c6602f.css

738 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Sellercenter.io, 67% (50 requests) were made to Zbase-global.zingfront.com and 12% (9 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source T.uncledesk.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 478.0 kB (30%)

Content Size

1.6 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sellercenter.io main page is 1.6 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. 70% of websites need less resources to load. Images take 839.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 88.4 kB

  • Original 112.3 kB
  • After minification 111.0 kB
  • After compression 23.9 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. 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 88.4 kB or 79% of the original size.

Image Optimization

-20%

Potential reduce by 163.9 kB

  • Original 839.4 kB
  • After minification 675.6 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, Seller Center needs image optimization as it can save up to 163.9 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-47%

Potential reduce by 173.7 kB

  • Original 367.7 kB
  • After minification 367.6 kB
  • After compression 194.0 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 173.7 kB or 47% of the original size.

CSS Optimization

-17%

Potential reduce by 52.0 kB

  • Original 299.8 kB
  • After minification 296.1 kB
  • After compression 247.8 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. Sellercenter.io needs all CSS files to be minified and compressed as it can save up to 52.0 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (73%)

Requests Now

60

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seller Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sellercenter.io

sellercenter.io

137 ms

en

en

294 ms

jquery_1.12.4-wp_49edccea2e7ba985cadc9ba0531cbed1.js

jquery_1.12.4-wp_49edccea2e7ba985cadc9ba0531cbed1.js

796 ms

jquery-migrate.min_1.4.1_7121994eec5320fbe6586463bf9651c2.js

jquery-migrate.min_1.4.1_7121994eec5320fbe6586463bf9651c2.js

726 ms

style.min_5.2.12_80abe0410c6640e58fc1e18516c6602f.css

style.min_5.2.12_80abe0410c6640e58fc1e18516c6602f.css

738 ms

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theme.min_5.2.12_182ddba2abac4cdd9ffda9ac1e64e4b9.css

753 ms

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css

123 ms

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785 ms

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865 ms

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875 ms

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877 ms

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881 ms

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879 ms

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999 ms

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881 ms

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1170 ms

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970 ms

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195 ms

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966 ms

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899 ms

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135 ms

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729 ms

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869 ms

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916 ms

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1114 ms

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1115 ms

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jquery.waypoints.min_1.1.2_7d05f92297dede9ecfe3706efb95677a.js

1205 ms

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1115 ms

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1206 ms

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slick.min_1.1.2_d5a61c749e44e47159af8a6579dda121.js

1207 ms

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typed.min_1.1.2_5d53ae31eda336c919b79ad3590e8589.js

1212 ms

imagesloaded.min_3.2.0_7e97ab52c3df75e9053002bb59f2cdd5.js

imagesloaded.min_3.2.0_7e97ab52c3df75e9053002bb59f2cdd5.js

1208 ms

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shuffle.min_1.1.2_fb91e20df994252467172e7bc95758db.js

1207 ms

jarallax.min_1.1.2_4d95aee2e4fb638240195c2e00125a9e.js

jarallax.min_1.1.2_4d95aee2e4fb638240195c2e00125a9e.js

1211 ms

jarallax-video.min_1.1.2_07964f804f6de718cd802a418491e57e.js

jarallax-video.min_1.1.2_07964f804f6de718cd802a418491e57e.js

1209 ms

wp-embed.min_5.2.12_570ae0f3c201604926ea599d3d1f6c04.js

wp-embed.min_5.2.12_570ae0f3c201604926ea599d3d1f6c04.js

1208 ms

client

client

94 ms

zbase-fingerprint.js

zbase-fingerprint.js

1210 ms

page.20210122.min.v1.js

page.20210122.min.v1.js

1565 ms

script.min.js

script.min.js

1210 ms

getrefcodeuser.js

getrefcodeuser.js

1232 ms

popup1.5.8.js

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1232 ms

popup-userinfo-1.7.0.js

popup-userinfo-1.7.0.js

602 ms

fonts.googleapis.css

fonts.googleapis.css

144 ms

Tools.png

Tools.png

1113 ms

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97 ms

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98 ms

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98 ms

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1006 ms

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707 ms

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388 ms

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709 ms

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388 ms

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388 ms

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1006 ms

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575 ms

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623 ms

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623 ms

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723 ms

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110 ms

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collect

847 ms

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l.js

778 ms

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92 ms

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client.js

52 ms

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62 ms

Accessibility Review

sellercenter.io accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

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

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

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

Best Practices

sellercenter.io 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

High

Page has valid source maps

SEO Factors

sellercenter.io SEO score

90

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sellercenter.io can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sellercenter.io 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

sellercenter.io

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