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gemscientific.co.uk screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

gemscientific.co.uk

Gem Scientific Ltd | Scientific and Laboratory Equipment Suppliers - https://www.gemscientific.co.uk

Page Load Speed

7.3 sec in total

First Response

240 ms

Resources Loaded

6.9 sec

Page Rendered

214 ms

gemscientific.co.uk screenshot

About Website

Visit gemscientific.co.uk now to see the best up-to-date Gem Scientific content and also check out these interesting facts you probably never knew about gemscientific.co.uk

Gem Scientific has been supplying leading scientific equipment to companies across the UK for over 25 years. We provide expert knowledge to our clients. View our site.

Visit gemscientific.co.uk

Key Findings

We analyzed Gemscientific.co.uk page load time and found that the first response time was 240 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

gemscientific.co.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value18.0 s

0/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value5,780 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value26.2 s

0/100

10%

Network Requests Diagram

gemscientific.co.uk

240 ms

www.gemscientific.co.uk

3217 ms

jquery.min.js

26 ms

theme-6217ad1303.css

331 ms

js

59 ms

Our browser made a total of 118 requests to load all elements on the main page. We found that 94% of them (111 requests) were addressed to the original Gemscientific.co.uk, 3% (3 requests) were made to Googletagmanager.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Gemscientific.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 427.9 kB (19%)

Content Size

2.3 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gemscientific.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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 399.8 kB

  • Original 440.2 kB
  • After minification 319.2 kB
  • After compression 40.5 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. This page needs HTML code to be minified as it can gain 121.0 kB, which is 27% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 399.8 kB or 91% of the original size.

Image Optimization

-2%

Potential reduce by 22.1 kB

  • Original 1.4 MB
  • After minification 1.4 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. Gem Scientific images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.2 kB

  • Original 278.7 kB
  • After minification 278.7 kB
  • After compression 276.5 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

-3%

Potential reduce by 3.9 kB

  • Original 146.4 kB
  • After minification 146.4 kB
  • After compression 142.5 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. Gemscientific.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (9%)

Requests Now

113

After Optimization

103

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gem Scientific. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

gemscientific.co.uk

gemscientific.co.uk

240 ms

www.gemscientific.co.uk

www.gemscientific.co.uk

3217 ms

jquery.min.js

jquery.min.js

26 ms

theme-6217ad1303.css

theme-6217ad1303.css

331 ms

js

js

59 ms

js

js

109 ms

css

css

39 ms

global-1.css

global-1.css

243 ms

3020101.css

3020101.css

242 ms

1020101.css

1020101.css

241 ms

4020101.css

4020101.css

191 ms

bottom-aaafb51302.js

bottom-aaafb51302.js

1478 ms

gtm.js

gtm.js

1135 ms

logo-1700649953.jpg

logo-1700649953.jpg

260 ms

knowledge%20hub%20homepage%20banner.jpeg

knowledge%20hub%20homepage%20banner.jpeg

745 ms

homepage-banner.jpg

homepage-banner.jpg

745 ms

ZymoSnap-kit-banner-mobile.png

ZymoSnap-kit-banner-mobile.png

744 ms

Water%20Activity%20Hub%20banner.jpeg

Water%20Activity%20Hub%20banner.jpeg

744 ms

1600686581FreeSwabxSystemSure-Flagg.png

1600686581FreeSwabxSystemSure-Flagg.png

260 ms

retina-Allergen.jpg

retina-Allergen.jpg

743 ms

retina-1656926185-27979300.jpg

retina-1656926185-27979300.jpg

745 ms

1600681082LM1FreeSwabFlag-Left-01.png

1600681082LM1FreeSwabFlag-Left-01.png

953 ms

63f8a6bad816a272EnSure-Service-page-header.jpg

63f8a6bad816a272EnSure-Service-page-header.jpg

912 ms

1600681170FreeHandSan-Flag-100swabs-01.png

1600681170FreeHandSan-Flag-100swabs-01.png

912 ms

1.jpg

1.jpg

910 ms

2.jpg

2.jpg

910 ms

3.jpg

3.jpg

909 ms

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4.jpg

912 ms

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912 ms

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7.jpg

913 ms

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8.jpg

949 ms

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951 ms

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10.jpg

955 ms

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955 ms

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12.jpg

959 ms

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1031 ms

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1035 ms

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1037 ms

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1038 ms

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1041 ms

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1042 ms

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1112 ms

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1116 ms

70.jpg

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1119 ms

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1197 ms

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1122 ms

21.jpg

21.jpg

1126 ms

js

js

256 ms

22.jpg

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1046 ms

23.jpg

23.jpg

951 ms

24.jpg

24.jpg

949 ms

25.jpg

25.jpg

947 ms

font

font

484 ms

f2a0933406f7830651524f477ba2f543.woff

f2a0933406f7830651524f477ba2f543.woff

603 ms

roadthemes-icon.ttf

roadthemes-icon.ttf

536 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

705 ms

27.jpg

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600 ms

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600 ms

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600 ms

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30.jpg

539 ms

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539 ms

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538 ms

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539 ms

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538 ms

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538 ms

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538 ms

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627 ms

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601 ms

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601 ms

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600 ms

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599 ms

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597 ms

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594 ms

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522 ms

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519 ms

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518 ms

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566 ms

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565 ms

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567 ms

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499 ms

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500 ms

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505 ms

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563 ms

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564 ms

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496 ms

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499 ms

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508 ms

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563 ms

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434 ms

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436 ms

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443 ms

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351 ms

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407 ms

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409 ms

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412 ms

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421 ms

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432 ms

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485 ms

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387 ms

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390 ms

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400 ms

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413 ms

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463 ms

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465 ms

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468 ms

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467 ms

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480 ms

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491 ms

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492 ms

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489 ms

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489 ms

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489 ms

logo.jpg

logo.jpg

498 ms

card-logos.png

card-logos.png

505 ms

Accessibility Review

gemscientific.co.uk accessibility score

77

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

gemscientific.co.uk 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

gemscientific.co.uk SEO score

90

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

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 Gemscientific.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 Gemscientific.co.uk 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

gemscientific.co.uk

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