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chemicalnote.com screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

chemicalnote.com

Online Chemistry notes - Simple Notes for All Students.

Page Load Speed

5.5 sec in total

First Response

689 ms

Resources Loaded

4.7 sec

Page Rendered

145 ms

chemicalnote.com screenshot

About Website

Welcome to chemicalnote.com homepage info - get ready to check Chemicalnote best content right away, or after learning these important things about chemicalnote.com

Get simple Chemistry notes of all branches like Inorganic, Organic, Physical , Applied chemistry, etc.,(subjective+objective) for all levels of students.

Visit chemicalnote.com

Key Findings

We analyzed Chemicalnote.com page load time and found that the first response time was 689 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

chemicalnote.com performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

11/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value2,010 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.718

7/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

chemicalnote.com

689 ms

analytics.js

29 ms

wp-emoji-release.min.js

923 ms

style.min.css

941 ms

theme.min.css

953 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 56% of them (60 requests) were addressed to the original Chemicalnote.com, 20% (21 requests) were made to Fonts.gstatic.com and 7% (8 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Chemicalnote.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.8 kB (15%)

Content Size

806.8 kB

After Optimization

683.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemicalnote.com main page is 806.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 485.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 65.5 kB

  • Original 80.2 kB
  • After minification 74.9 kB
  • After compression 14.8 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. 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 65.5 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 2.2 kB

  • Original 105.3 kB
  • After minification 103.1 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. Chemicalnote images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 33.4 kB

  • Original 485.4 kB
  • After minification 485.4 kB
  • After compression 452.1 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

-17%

Potential reduce by 22.8 kB

  • Original 135.8 kB
  • After minification 134.4 kB
  • After compression 113.1 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. Chemicalnote.com needs all CSS files to be minified and compressed as it can save up to 22.8 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 59 (73%)

Requests Now

81

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemicalnote. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 29 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemicalnote.com

chemicalnote.com

689 ms

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29 ms

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923 ms

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941 ms

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953 ms

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953 ms

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962 ms

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985 ms

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35 ms

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2107 ms

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2120 ms

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118 ms

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2213 ms

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126 ms

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767 ms

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829 ms

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862 ms

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1078 ms

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298 ms

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89 ms

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38 ms

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72 ms

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90 ms

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Accessibility Review

chemicalnote.com accessibility score

86

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

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

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

chemicalnote.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

chemicalnote.com SEO score

93

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

Links do not have descriptive text

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

    UTF-8

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

chemicalnote.com

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