Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 100

    SEO

    Google-friendlier than
    96% of websites

webqc.org

Chemical Portal - Chemistry Online Education

Page Load Speed

6.9 sec in total

First Response

218 ms

Resources Loaded

3.1 sec

Page Rendered

3.6 sec

webqc.org screenshot

About Website

Click here to check amazing Webqc content for United States. Otherwise, check out these important facts you probably never knew about webqc.org

Chemical portal: a place for chemistry enthusiasts and professionals alike. Chemistry tools, periodic table, unit converters and more.

Visit webqc.org

Key Findings

We analyzed Webqc.org page load time and found that the first response time was 218 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

webqc.org performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

webqc.org

218 ms

www.webqc.org

116 ms

webqc.css

190 ms

addthis_widget.js

188 ms

common.js

589 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 90% of them (9 requests) were addressed to the original Webqc.org, 10% (1 request) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (589 ms) belongs to the original domain Webqc.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 439.8 kB (58%)

Content Size

764.3 kB

After Optimization

324.5 kB

In fact, the total size of Webqc.org main page is 764.3 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. 15% of websites need less resources to load. Javascripts take 631.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 15.7 kB

  • Original 21.4 kB
  • After minification 21.2 kB
  • After compression 5.7 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 15.7 kB or 73% 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. Webqc images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 417.7 kB

  • Original 631.9 kB
  • After minification 631.9 kB
  • After compression 214.2 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 417.7 kB or 66% 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. 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 Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Webqc. According to our analytics all requests are already optimized.

Accessibility Review

webqc.org accessibility score

94

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

webqc.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

webqc.org SEO score

100

Search Engine Optimization Advices

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Webqc.org 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 Webqc.org main page’s claimed encoding is iso-8859-1. 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

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