Access zh.webqc.org. 化学之窗

Report Summary

About Website

Welcome to zh.webqc.org homepage info - get ready to check Zh Webqc best content for United States right away, or after learning these important things about zh.webqc.org

化学之窗：化学爱好者和专业人士的聚集地。包含化学工具、元素周期表、单元转换器等。

Visit zh.webqc.org

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

zh.webqc.org

694 ms

webqc.css

170 ms

addthis_widget.js

11 ms

common.js

336 ms

webqclogo2.png

184 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 62% of them (8 requests) were addressed to the original Zh.webqc.org, 15% (2 requests) were made to S7.addthis.com and 8% (1 request) were made to Beacon.errorception.com. The less responsive or slowest element that took the longest time to load (694 ms) belongs to the original domain Zh.webqc.org.

Content Size

535.4 kB

After Optimization

266.3 kB

In fact, the total size of Zh.webqc.org main page is 535.4 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. 20% of websites need less resources to load. Javascripts take 374.4 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 33.9 kB

Original 50.0 kB
After minification 49.8 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 33.9 kB or 68% of the original size.

Image Optimization

-2%

Potential reduce by 1.6 kB

Original 104.9 kB
After minification 103.3 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. Zh Webqc images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 228.9 kB

Original 374.4 kB
After minification 374.4 kB
After compression 145.5 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 228.9 kB or 61% of the original size.

CSS Optimization

-78%

Potential reduce by 4.7 kB

Original 6.0 kB
After minification 4.4 kB
After compression 1.3 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. Zh.webqc.org needs all CSS files to be minified and compressed as it can save up to 4.7 kB or 78% of the original size.

Requests Now

After Optimization

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zh Webqc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

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

ZH
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zh.webqc.org can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Zh.webqc.org 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

zh.webqc.org

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

化学之窗 - 化学在线教育

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)