Access thdzyjs.com. 湘潭市天鸿电子研究所|声学仪器|超声波设备【官网】

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

86/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.042

99/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

thdzyjs.com

14019 ms

uaredirect.js

724 ms

style.css

8750 ms

jquery-1.2.1.min.js

9543 ms

menu.js

1045 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 48% of them (35 requests) were addressed to the original Thdzyjs.com, 12% (9 requests) were made to Qiao.baidu.com and 8% (6 requests) were made to Cn-style.gcimg.net. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Lxbjs.baidu.com.

Content Size

455.7 kB

After Optimization

238.0 kB

In fact, the total size of Thdzyjs.com main page is 455.7 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 217.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 30.2 kB

Original 40.3 kB
After minification 37.4 kB
After compression 10.1 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 30.2 kB or 75% of the original size.

Image Optimization

-5%

Potential reduce by 7.2 kB

Original 151.2 kB
After minification 144.0 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. Thdzyjs images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 141.6 kB

Original 217.6 kB
After minification 215.6 kB
After compression 75.9 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 141.6 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 38.7 kB

Original 46.6 kB
After minification 35.7 kB
After compression 7.9 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. Thdzyjs.com needs all CSS files to be minified and compressed as it can save up to 38.7 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Thdzyjs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 5 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 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Links are not crawlable

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thdzyjs.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 Thdzyjs.com 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

thdzyjs.com

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

湘潭市天鸿电子研究所|声学仪器|超声波设备【官网】

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

thdzyjs.com

uaredirect.js

style.css

jquery-1.2.1.min.js

menu.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

thdzyjs.com

uaredirect.js

style.css

jquery-1.2.1.min.js

menu.js

17580763.js

tj.js

hm.js

top_bg.png

logo1.jpg

logo2.jpg

%E6%9C%AA%E6%A0%87%E9%A2%98-2.gif

aboutus.jpg

HS-GR16A.jpg

%E5%A3%B0%E6%B3%A2%E6%B5%8B%E4%BA%95%E4%BB%AA%E5%89%AF%E6%9C%AC.jpg

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001.png

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%E5%B2%A9%E7%9F%B3%E5%A3%B0%E6%B3%A2%E4%BB%AA.jpg

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HS-CYF-1A.png

HS-YF1.gif

1K%E7%BA%B5%E6%B3%A2%E6%8D%A2%E8%83%BD%E5%99%A8.jpg

%E5%A4%9A%E5%8A%9F%E8%83%BD%E5%A3%B0%E6%B3%A2%E4%BB%AA.gif

HS-GZJ2C.jpg

aa01.jpg

button_old_41.gif

VH1L67[%7BH7%7BC9DU%603SF)X9V.png

nav_bg.jpg

nav.png

nav_hover.png

main_bg.gif

lz_15.gif

li_fh.gif

biaoti02.jpg

left19.gif

biaoti01.gif

foot_bg.gif

hm.gif

lxb.js

b.js

icon_9.gif