Access nb-bolin.en.alibaba.com. Company Overview - Ningbo Hi-Tech Park Bolin Technique Co., Ltd.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value13.5 s

2/100

10%

TBT (Total Blocking Time)

Value14,510 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value28.0 s

0/100

10%

nb-bolin.en.alibaba.com

425 ms

nb-bolin.en.alibaba.com

341 ms

42 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

54 ms

index.js

90 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Nb-bolin.en.alibaba.com, 53% (21 requests) were made to S.alicdn.com and 8% (3 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source S.alicdn.com.

Content Size

2.1 MB

After Optimization

1.2 MB

In fact, the total size of Nb-bolin.en.alibaba.com main page is 2.1 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. 65% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 476.1 kB

Original 579.4 kB
After minification 578.6 kB
After compression 103.3 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 476.1 kB or 82% of the original size.

Image Optimization

-18%

Potential reduce by 38.1 kB

Original 207.0 kB
After minification 168.9 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, Nb Bolin En Alibaba needs image optimization as it can save up to 38.1 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

-27%

Potential reduce by 347.6 kB

Original 1.3 MB
After minification 1.3 MB
After compression 929.9 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 347.6 kB or 27% of the original size.

Requests Now

After Optimization

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb Bolin En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document doesn't use legible font sizes

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 Nb-bolin.en.alibaba.com 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 Nb-bolin.en.alibaba.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

nb-bolin.en.alibaba.com

Open Graph data is detected on the main page of Nb Bolin En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Company Overview - Ningbo Hi-Tech Park Bolin Technique Co., Ltd.

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

nb-bolin.en.alibaba.com

nb-bolin.en.alibaba.com

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

index.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

nb-bolin.en.alibaba.com

nb-bolin.en.alibaba.com

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

index.js

index.js

renderHeader.js

awsc.js

7.gif

et_n.js

um.js

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Hd7c72decd0274ea0963411f9d15f0e214.jpg

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High-quality-metal-over-ear-earphone-headphone.jpg_480x480.jpg

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language-laboratory-system-2066A-student-machine.jpg_250x250.jpg

wireless-language-learning-system.jpg_250x250.jpg

Lingafon-Office-Multimedia-Room-Sound-Engineering-Hall.jpg_250x250.jpg

best-language-learning-software.jpg_250x250.jpg

Portable-right-hand-drive-car-driving-simulator.jpg_250x250.jpg

street-view-car-driving-simulator-with-3.jpg_250x250.jpg

High-quality-metal-over-ear-earphone-headphone.jpg_350x350.jpg

street-view-car-driving-simulator-with-3.jpg_350x350.jpg

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TB13qeCOVXXXXafaVXXXXXXXXXX-1200-280.jpg

HTB1k4XWX1SSBuNjy0Flq6zBpVXaP.jpg

wu.json

um.json

getUmid.do

eg.js

index.js

Accessibility Review

Accessibility Issues

Best Practices

Areas of Improvement

SEO Factors

Search Engine Optimization Advices

Language and Encoding