Access usa-idc.com. 香港服务器_国外服务器_美国服务器租用托管-USA-IDC

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value16.7 s

0/100

25%

SI (Speed Index)

Value15.9 s

0/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.2 s

6/100

10%

usa-idc.com

887 ms

css.css

665 ms

jquery-1.7.2.min.js

871 ms

index_zixie.js

435 ms

js

69 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 87% of them (86 requests) were addressed to the original Usa-idc.com, 3% (3 requests) were made to Prt.zoosnet.net and 3% (3 requests) were made to Content.mql5.com. The less responsive or slowest element that took the longest time to load (6.4 sec) belongs to the original domain Usa-idc.com.

Content Size

5.4 MB

After Optimization

5.1 MB

In fact, the total size of Usa-idc.com main page is 5.4 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. Images take 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 62.6 kB

Original 74.4 kB
After minification 52.2 kB
After compression 11.8 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 22.2 kB, which is 30% 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 62.6 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 211.2 kB

Original 5.2 MB
After minification 5.0 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. USA IDC images are well optimized though.

JavaScript Optimization

-18%

Potential reduce by 21.7 kB

Original 118.6 kB
After minification 118.6 kB
After compression 96.9 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 21.7 kB or 18% of the original size.

CSS Optimization

-40%

Potential reduce by 22.7 kB

Original 56.6 kB
After minification 56.6 kB
After compression 33.9 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. Usa-idc.com needs all CSS files to be minified and compressed as it can save up to 22.7 kB or 40% of the original size.

Requests Now

After Optimization

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of USA IDC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 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.

High

Definition list items are not wrapped in <dl> 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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 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 Usa-idc.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 Usa-idc.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

usa-idc.com

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

香港服务器_国外服务器_美国服务器租用托管-USA-IDC

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

usa-idc.com

css.css

jquery-1.7.2.min.js

index_zixie.js

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

usa-idc.com

css.css

jquery-1.7.2.min.js

index_zixie.js

js

js

js-sdk-pro.min.js

index_ban.css

index_tab.css

jquery.SuperSlide.2.1.1.js

swiper-3.4.2.jquery.min.js

Common.js

Xmlhttp.js

LsJS.aspx

hm.js

collect

core.js

logo_nav.png

nav_sj_qh.png

nav_fwqzy_icon.png

nav_cpzx_hot.png

nav_x_jjfaxl_qqjs.png

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nav_x_jjfaxl_fzjh.png

nav_x_jjfaxl_sjzb.png

nav_x_jjfaxl_more.png

nav_about_gywm.png

nav_about_news.png

nav_about_jfjs.png

nav_about_fwzc.png

index_ban_20230324.jpg

zqfwqzty_ban_ic1.png

zqfwqzty_ban_ic2.png

zqfwqzty_ban_ic3.png

index_ban_aws20230724.jpg

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icon-q2.png

icon-q1.png

index_ban_fwq.png

index_ban_yun.png

index_ban_cdn.png

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