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Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sentek.co.uk

Sentek Ltd | Leading UK Suppliers of Electrodes & Probes

Page Load Speed

6.2 sec in total

First Response

1.1 sec

Resources Loaded

4 sec

Page Rendered

1.1 sec

sentek.co.uk screenshot

About Website

Click here to check amazing Sentek content. Otherwise, check out these important facts you probably never knew about sentek.co.uk

Sentek Ltd are the UK’s largest independent manufacturer of electrochemical sensors, pH, conductivity, and reference electrodes. Shop our range.

Visit sentek.co.uk

Key Findings

We analyzed Sentek.co.uk page load time and found that the first response time was 1.1 sec and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sentek.co.uk performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value1,040 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value13.5 s

11/100

10%

Network Requests Diagram

www.sentek.co.uk

1096 ms

fntvh.css

417 ms

fntvh.css

402 ms

fntvh.css

561 ms

fntvh.css

732 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 69% of them (27 requests) were addressed to the original Sentek.co.uk, 18% (7 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Sentek.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 632.6 kB (39%)

Content Size

1.6 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sentek.co.uk main page is 1.6 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. 60% of websites need less resources to load. Images take 927.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 89.5 kB

  • Original 111.0 kB
  • After minification 104.9 kB
  • After compression 21.5 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 89.5 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 74.2 kB

  • Original 927.9 kB
  • After minification 853.7 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. Sentek images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 119.7 kB

  • Original 179.0 kB
  • After minification 178.1 kB
  • After compression 59.4 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 119.7 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 349.3 kB

  • Original 424.4 kB
  • After minification 407.5 kB
  • After compression 75.2 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. Sentek.co.uk needs all CSS files to be minified and compressed as it can save up to 349.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (68%)

Requests Now

31

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sentek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.sentek.co.uk

www.sentek.co.uk

1096 ms

fntvh.css

fntvh.css

417 ms

fntvh.css

fntvh.css

402 ms

fntvh.css

fntvh.css

561 ms

fntvh.css

fntvh.css

732 ms

jquery.min.js

jquery.min.js

605 ms

jquery-migrate.min.js

jquery-migrate.min.js

322 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

453 ms

add-to-cart.min.js

add-to-cart.min.js

509 ms

js.cookie.min.js

js.cookie.min.js

542 ms

woocommerce.min.js

woocommerce.min.js

568 ms

con-gtm-google-analytics.js

con-gtm-google-analytics.js

650 ms

fntvh.css

fntvh.css

568 ms

gtm4wp-ecommerce-generic.js

gtm4wp-ecommerce-generic.js

577 ms

gtm4wp-woocommerce.js

gtm4wp-woocommerce.js

611 ms

site.js

site.js

638 ms

sourcebuster.min.js

sourcebuster.min.js

817 ms

order-attribution.min.js

order-attribution.min.js

676 ms

css2

css2

29 ms

css2

css2

51 ms

gtm.js

gtm.js

181 ms

hotjar-1249816.js

hotjar-1249816.js

223 ms

gtm.js

gtm.js

231 ms

111-761-P11-Protected-bulb-Diagonal-Shadow-640x640.jpg

111-761-P11-Protected-bulb-Diagonal-Shadow-640x640.jpg

204 ms

220-75-K20-Diagonal-Shadow-640x640.jpg

220-75-K20-Diagonal-Shadow-640x640.jpg

240 ms

ISE-Diagonal-Shadow-640x640.jpg

ISE-Diagonal-Shadow-640x640.jpg

241 ms

401-75-R1-Diagonal-Shadow-640x640.jpg

401-75-R1-Diagonal-Shadow-640x640.jpg

241 ms

mark-of-trust-certified-ISO-9001-quality-management-systems-black-logo-En-GB-1019_FM36099.jpg

mark-of-trust-certified-ISO-9001-quality-management-systems-black-logo-En-GB-1019_FM36099.jpg

479 ms

GAMBICA_Logo_Colour.png

GAMBICA_Logo_Colour.png

298 ms

Close-Up-Grid.jpg

Close-Up-Grid.jpg

496 ms

shutterstock_445343221.jpg

shutterstock_445343221.jpg

765 ms

KFOmCnqEu92Fr1Me5g.woff

KFOmCnqEu92Fr1Me5g.woff

30 ms

KFOlCnqEu92Fr1MmWUlvAA.woff

KFOlCnqEu92Fr1MmWUlvAA.woff

56 ms

UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYMZs.woff

UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYMZs.woff

64 ms

UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfMZs.woff

UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfMZs.woff

106 ms

KFOkCnqEu92Fr1Mu52xM.woff

KFOkCnqEu92Fr1Mu52xM.woff

105 ms

KFOjCnqEu92Fr1Mu51TzBhc-.woff

KFOjCnqEu92Fr1Mu51TzBhc-.woff

66 ms

pxiByp8kv8JHgFVrLCz7V1g.woff

pxiByp8kv8JHgFVrLCz7V1g.woff

65 ms

fntvh.css

fntvh.css

117 ms

Accessibility Review

sentek.co.uk accessibility score

81

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

sentek.co.uk best practices score

92

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

SEO Factors

sentek.co.uk 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 Sentek.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 Sentek.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

sentek.co.uk

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