Tools & Wizards About Us
biochemtuition.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

biochemtuition.com

Chemistry Tutor|Physics & Maths Tutor|BioChem Tuition

Page Load Speed

5.2 sec in total

First Response

408 ms

Resources Loaded

4.2 sec

Page Rendered

608 ms

biochemtuition.com screenshot

About Website

Visit biochemtuition.com now to see the best up-to-date Bio Chem Tuition content for United Kingdom and also check out these interesting facts you probably never knew about biochemtuition.com

Providing students with specialist A-level chemistry, A-level biology, maths & physics tuition. We also tutor IB diploma and iGCSE level students.

Visit biochemtuition.com

Key Findings

We analyzed Biochemtuition.com page load time and found that the first response time was 408 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

biochemtuition.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.045

99/100

15%

TTI (Time to Interactive)

Value17.8 s

4/100

10%

Network Requests Diagram

www.biochemtuition.com

408 ms

webfont.js

74 ms

wp-emoji-release.min.js

93 ms

style.min.css

93 ms

styles.css

104 ms

Our browser made a total of 156 requests to load all elements on the main page. We found that 82% of them (128 requests) were addressed to the original Biochemtuition.com, 14% (22 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (993 ms) belongs to the original domain Biochemtuition.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 185.9 kB (15%)

Content Size

1.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Biochemtuition.com main page is 1.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Javascripts take 522.6 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 160.6 kB

  • Original 181.8 kB
  • After minification 178.7 kB
  • After compression 21.2 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 160.6 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 726 B

  • Original 303.4 kB
  • After minification 302.7 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. Bio Chem Tuition images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 20.0 kB

  • Original 522.6 kB
  • After minification 521.9 kB
  • After compression 502.7 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

-2%

Potential reduce by 4.6 kB

  • Original 219.3 kB
  • After minification 218.9 kB
  • After compression 214.7 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. Biochemtuition.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 121 (92%)

Requests Now

132

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 132 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bio Chem Tuition. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 104 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.biochemtuition.com

www.biochemtuition.com

408 ms

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74 ms

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TweenLite.min.js

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635 ms

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731 ms

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730 ms

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Accessibility Review

biochemtuition.com accessibility score

70

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

biochemtuition.com best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

biochemtuition.com SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Biochemtuition.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 Biochemtuition.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

biochemtuition.com

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