Access sdhengjing.en.alibaba.com. Shandong Yanggu Constant Crystal Optic Inc.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

79/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value6,510 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value23.4 s

1/100

10%

sdhengjing.en.alibaba.com

1263 ms

sdhengjing.en.alibaba.com

236 ms

287 ms

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

510 ms

550 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Sdhengjing.en.alibaba.com, 27% (8 requests) were made to Assets.alicdn.com and 20% (6 requests) were made to S.alicdn.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Sc01.alicdn.com.

Content Size

2.0 MB

After Optimization

1.5 MB

In fact, the total size of Sdhengjing.en.alibaba.com main page is 2.0 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. 20% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 262.4 kB

Original 340.4 kB
After minification 339.7 kB
After compression 78.0 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 262.4 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 6.5 kB

Original 526.8 kB
After minification 520.3 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. Sdhengjing En Alibaba images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 231.2 kB

Original 1.1 MB
After minification 1.1 MB
After compression 911.2 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 231.2 kB or 20% of the original size.

Requests Now

After Optimization

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sdhengjing 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 15 to 1 for JavaScripts 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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

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

High

Image elements do not have [alt] attributes

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

Missing source maps for large first-party JavaScript

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

EN
Language Claimed

EN
Encoding

UTF-8

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

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