Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

igcseandialchemistry.com

IGCSE and IAL Chemistry- IGCSE chemistry notes, A level chemistry help

Page Load Speed

5 sec in total

First Response

154 ms

Resources Loaded

2.4 sec

Page Rendered

2.4 sec

igcseandialchemistry.com screenshot

About Website

Click here to check amazing IGCSE And IAL Chemistry content. Otherwise, check out these important facts you probably never knew about igcseandialchemistry.com

IGCSE and IAL Chemistry is a website which provides free IGCSE Chemistry notes, a level chemistry notes, and chemistry revision guide. Students from both Edexcel and CIE chemistry can use this website...

Visit igcseandialchemistry.com

Key Findings

We analyzed Igcseandialchemistry.com page load time and found that the first response time was 154 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

igcseandialchemistry.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

igcseandialchemistry.com

154 ms

igcseandialchemistry.com

378 ms

style.min.css

271 ms

woocommerce-layout.min.css

222 ms

woocommerce.min.css

30 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 83% of them (48 requests) were addressed to the original Igcseandialchemistry.com, 16% (9 requests) were made to Fonts.gstatic.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Igcseandialchemistry.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 221.2 kB (23%)

Content Size

978.5 kB

After Optimization

757.3 kB

In fact, the total size of Igcseandialchemistry.com main page is 978.5 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. 45% of websites need less resources to load. Images take 716.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 218.8 kB

  • Original 262.0 kB
  • After minification 256.9 kB
  • After compression 43.2 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 218.8 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 2.4 kB

  • Original 716.5 kB
  • After minification 714.1 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. IGCSE And IAL Chemistry images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 17 (36%)

Requests Now

47

After Optimization

30

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IGCSE And IAL Chemistry. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

igcseandialchemistry.com accessibility score

95

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.

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

Links do not have a discernible name

Best Practices

igcseandialchemistry.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

igcseandialchemistry.com 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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Igcseandialchemistry.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 Igcseandialchemistry.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 IGCSE And IAL Chemistry. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: