Access sign51.cn. 现代标识网-全球首家标识加工交易平台-官方首页|标识网|广告标识网|标识加工|标识加工平台|标识加工交易平台

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

65/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value13.7 s

2/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

sign51.cn

1014 ms

quanj.css

437 ms

index.css

445 ms

main.css

448 ms

header.css

475 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 99% of them (95 requests) were addressed to the original Sign51.cn, 1% (1 request) were made to Mat1.qq.com. The less responsive or slowest element that took the longest time to load (10.9 sec) belongs to the original domain Sign51.cn.

Content Size

1.3 MB

After Optimization

1.3 MB

In fact, the total size of Sign51.cn 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 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 60.9 kB

Original 77.2 kB
After minification 74.6 kB
After compression 16.2 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 60.9 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 14.6 kB

Original 1.2 MB
After minification 1.2 MB

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. Sign 51 images are well optimized though.

JavaScript Optimization

-80%

Potential reduce by 2.0 kB

Original 2.5 kB
After minification 1.3 kB
After compression 498 B

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 2.0 kB or 80% of the original size.

CSS Optimization

-7%

Potential reduce by 434 B

Original 5.9 kB
After minification 5.9 kB
After compression 5.4 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. Sign51.cn has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sign 51. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

High

Browser errors were logged to the console

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

Language and Encoding

Language Detected

N/A
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sign51.cn can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Sign51.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sign51.cn

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

现代标识网-全球首家标识加工交易平台-官方首页|标识网|广告标识网|标识加工|标识加工平台|标识加工交易平台

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

sign51.cn

quanj.css

index.css

main.css

header.css

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

sign51.cn

quanj.css

index.css

main.css

header.css

ad.css

footer.css

css.css

qq.js

adv.php

adv.php

adv.php

adv.php

adv.php

adv.php

4.jpg

img_10_13.jpg

img_81.jpg

img_82.jpg

img_83.jpg

img_84.jpg

img_85.jpg

img_87.jpg

img_73.jpg

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01_6.jpg

img_13.jpg

index_wyfb_04_1.jpg

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index_wyfb_07_1.jpg

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