Tools & Wizards About Us
chemistry-dictionary.com screenshot

Report Summary

  • 89

    Performance

    Renders faster than
    90% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

chemistry-dictionary.com

Chemistry Dictionary, Terms & Definitions - Chemistry-Dictionary.com

Page Load Speed

1.2 sec in total

First Response

143 ms

Resources Loaded

829 ms

Page Rendered

268 ms

chemistry-dictionary.com screenshot

About Website

Click here to check amazing Chemistry Dictionary content for India. Otherwise, check out these important facts you probably never knew about chemistry-dictionary.com

Everyone's online chemistry dictionary since 2004. Containing over 1800+ chemistry terms and definitions. For students and teachers.

Visit chemistry-dictionary.com

Key Findings

We analyzed Chemistry-dictionary.com page load time and found that the first response time was 143 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

chemistry-dictionary.com performance score

89

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value2.3 s

98/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

www.chemistry-dictionary.com

143 ms

2HR5WTHWkgy4vtsPzRl7S7rYyck.js

26 ms

d13d43e90a6282964dd551b50dd27cb9.css

64 ms

analytics.js

8 ms

collect

63 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 69% of them (9 requests) were addressed to the original Chemistry-dictionary.com, 15% (2 requests) were made to Google-analytics.com and 8% (1 request) were made to . The less responsive or slowest element that took the longest time to load (143 ms) belongs to the original domain Chemistry-dictionary.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 41.2 kB (28%)

Content Size

147.2 kB

After Optimization

106.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemistry-dictionary.com main page is 147.2 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. 35% of websites need less resources to load. CSS take 55.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 40.2 kB

  • Original 53.1 kB
  • After minification 53.1 kB
  • After compression 12.9 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 40.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 959 B

  • Original 17.9 kB
  • After minification 16.9 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. Chemistry Dictionary images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 55.2 kB
  • After minification 55.2 kB
  • After compression 55.2 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. Chemistry-dictionary.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemistry Dictionary. According to our analytics all requests are already optimized.

Network Requests Diagram

www.chemistry-dictionary.com

www.chemistry-dictionary.com

143 ms

2HR5WTHWkgy4vtsPzRl7S7rYyck.js

2HR5WTHWkgy4vtsPzRl7S7rYyck.js

26 ms

d13d43e90a6282964dd551b50dd27cb9.css

d13d43e90a6282964dd551b50dd27cb9.css

64 ms

analytics.js

analytics.js

8 ms

collect

collect

63 ms

From-Reactants-to-Products-The-Creation-of-Water-1024x576.webp

From-Reactants-to-Products-The-Creation-of-Water-1024x576.webp

50 ms

Acids-and-Bases-in-Chemistry-300x171.jpg

Acids-and-Bases-in-Chemistry-300x171.jpg

21 ms

Oxidation-in-Everyday-Life-300x195.webp

Oxidation-in-Everyday-Life-300x195.webp

21 ms

Reactants-Various-chemical-Reactions-Chemistry-Dictionary.com_-300x226.webp

Reactants-Various-chemical-Reactions-Chemistry-Dictionary.com_-300x226.webp

16 ms

facebook.png

facebook.png

27 ms

twitter.png

twitter.png

40 ms

wARDj0u

wARDj0u

2 ms

js

js

55 ms

Accessibility Review

chemistry-dictionary.com accessibility score

92

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

chemistry-dictionary.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

chemistry-dictionary.com SEO score

89

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Chemistry-dictionary.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 Chemistry-dictionary.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

chemistry-dictionary.com

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