Access sterlingsensors.co.uk. Sterling Sensors UK LTD | Thermocouples, RTD Sensors, Thermistors, Instrumentation, Temperature Sens...

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value410 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

www.sterlingsensors.co.uk

676 ms

styles.css

82 ms

custom.css

165 ms

bootstrap.css

307 ms

bootstrap-theme.css

234 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 99% of them (124 requests) were addressed to the original Sterlingsensors.co.uk, 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (852 ms) belongs to the original domain Sterlingsensors.co.uk.

Content Size

3.1 MB

After Optimization

2.8 MB

In fact, the total size of Sterlingsensors.co.uk main page is 3.1 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. 55% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 143.8 kB

Original 162.6 kB
After minification 150.3 kB
After compression 18.8 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 143.8 kB or 88% of the original size.

Image Optimization

-4%

Potential reduce by 120.9 kB

Original 2.7 MB
After minification 2.6 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. Sterling Sensors images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 24.7 kB

Original 204.2 kB
After minification 203.8 kB
After compression 179.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 24.7 kB or 12% of the original size.

CSS Optimization

-17%

Potential reduce by 11.6 kB

Original 68.5 kB
After minification 68.5 kB
After compression 57.0 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. Sterlingsensors.co.uk needs all CSS files to be minified and compressed as it can save up to 11.6 kB or 17% of the original size.

Requests Now

121

After Optimization

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sterling Sensors. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

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.

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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 Sterlingsensors.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 Sterlingsensors.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

sterlingsensors.co.uk

Open Graph description is not detected on the main page of Sterling Sensors. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Sterling Sensors UK LTD | Thermocouples, RTD Sensors, Thermistors, Instrumentation, Temperature Sensors

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.sterlingsensors.co.uk

styles.css

custom.css

bootstrap.css

bootstrap-theme.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.sterlingsensors.co.uk

styles.css

custom.css

bootstrap.css

bootstrap-theme.css

widgets.css

styles.css

sidenav.css

custom.css

featuredproduct.css

catalogextensions.css

default.css

apptrian_subcategories.css

prototype.js

ccard.js

validation.js

builder.js

effects.js

dragdrop.js

controls.js

slider.js

js.js

form.js

menu.js

translate.js

cookies.js

ajaxcartpro.js

cart.js

sidebar.js

topLinks.js

skipLinks.js

options.js

wishlist.js

miniWishlist.js

addProductConfirmation.js

removeProductConfirmation.js

generic-nav.css

grid12.css

jquery.bxslider.css

jquery.fancybox.css

clickOnButtonInCartPageForm.js

clickOnAddToCartInCategoryList.js

clickOnAddToCartInOptionsPopup.js