Report Summary

  • 21

    Performance

    Renders faster than
    40% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

tcsbiosciences.co.uk

TCS Biosciences - Microbiological Supplies

Page Load Speed

3.7 sec in total

First Response

317 ms

Resources Loaded

2.6 sec

Page Rendered

756 ms

tcsbiosciences.co.uk screenshot

About Website

Welcome to tcsbiosciences.co.uk homepage info - get ready to check TCS Biosciences best content right away, or after learning these important things about tcsbiosciences.co.uk

TCS Biosciences supply Microbiological organisms and reagents for the Food, Water and Pharmaceutical industries in addition to kits for the medical diagnosis of a number of acquired infections and wat...

Visit tcsbiosciences.co.uk

Key Findings

We analyzed Tcsbiosciences.co.uk page load time and found that the first response time was 317 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

tcsbiosciences.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

tcsbiosciences.co.uk

317 ms

tcsbiosciences.co.uk

331 ms

www.tcsbiosciences.co.uk

529 ms

slick.css

86 ms

slick-theme.css

163 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 66% of them (61 requests) were addressed to the original Tcsbiosciences.co.uk, 14% (13 requests) were made to Pbs.twimg.com and 8% (7 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (772 ms) belongs to the original domain Tcsbiosciences.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 326.2 kB (14%)

Content Size

2.3 MB

After Optimization

2.0 MB

In fact, the total size of Tcsbiosciences.co.uk main page is 2.3 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. 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. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 66.3 kB

  • Original 79.8 kB
  • After minification 72.0 kB
  • After compression 13.5 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 66.3 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 40.5 kB

  • Original 1.9 MB
  • After minification 1.9 MB

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. TCS Biosciences images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 131.2 kB

  • Original 203.9 kB
  • After minification 188.3 kB
  • After compression 72.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 131.2 kB or 64% of the original size.

CSS Optimization

-71%

Potential reduce by 88.1 kB

  • Original 123.9 kB
  • After minification 102.3 kB
  • After compression 35.8 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. Tcsbiosciences.co.uk needs all CSS files to be minified and compressed as it can save up to 88.1 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (31%)

Requests Now

85

After Optimization

59

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TCS Biosciences. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tcsbiosciences.co.uk accessibility score

80

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-hidden="true"] elements contain focusable descendents

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

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

tcsbiosciences.co.uk 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

tcsbiosciences.co.uk 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

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tcsbiosciences.co.uk 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 Tcsbiosciences.co.uk main page’s claimed encoding is windows-1252. 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 description is not detected on the main page of TCS Biosciences. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: