Access nb315.com. 深圳倍诺科技-国内领先的“一物一码”防伪溯源系统提供商|防伪溯源|窜货监控|在线赋码采集|标签定制|会员积分|微信红包|大数据营销|系统平台开发|解决方案

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value77.3 s

0/100

10%

TBT (Total Blocking Time)

Value123,740 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value135.5 s

0/100

10%

nb315.com

2427 ms

jquery-1.11.1.min.js

5282 ms

jquery-migrate-1.2.1.min.js

10299 ms

swfobject.js

1322 ms

layer.min.js

6268 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 63% of them (41 requests) were addressed to the original Nb315.com, 15% (10 requests) were made to Qiao.baidu.com and 9% (6 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (19.6 sec) belongs to the original domain Nb315.com.

Content Size

250.2 kB

After Optimization

81.5 kB

In fact, the total size of Nb315.com main page is 250.2 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. 25% of websites need less resources to load. Javascripts take 109.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.3 kB

Original 21.5 kB
After minification 18.9 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 2.6 kB, which is 12% 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 16.3 kB or 76% of the original size.

Image Optimization

-40%

Potential reduce by 31.6 kB

Original 79.6 kB
After minification 48.0 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 315 needs image optimization as it can save up to 31.6 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 88.2 kB

Original 109.9 kB
After minification 76.2 kB
After compression 21.6 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 88.2 kB or 80% of the original size.

CSS Optimization

-83%

Potential reduce by 32.5 kB

Original 39.3 kB
After minification 29.4 kB
After compression 6.8 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. Nb315.com needs all CSS files to be minified and compressed as it can save up to 32.5 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nb 315. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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 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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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 uses legible font sizes

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 Nb315.com 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 Nb315.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

nb315.com

Open Graph description is not detected on the main page of Nb 315. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

深圳倍诺科技-国内领先的“一物一码”防伪溯源系统提供商|防伪溯源|窜货监控|在线赋码采集|标签定制|会员积分|微信红包|大数据营销|系统平台开发|解决方案

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

nb315.com

jquery-1.11.1.min.js

jquery-migrate-1.2.1.min.js

swfobject.js

layer.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

nb315.com

jquery-1.11.1.min.js

jquery-migrate-1.2.1.min.js

swfobject.js

layer.min.js

lib.js

ad.js

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cn.js

style.css

kefu.js

chat_skin1.css

layer.css

xubox_ico0.png

2013.jpg

header_bg.png

vline.png

logo.png

header_linkbg.png

erjiul_bg.png

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banner01.jpg

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bannerBtn_hover.png

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hm.gif