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keeler.co.uk screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    20% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

keeler.co.uk

Keeler Ophthalmic Instruments - a Halma Company (UK)

Page Load Speed

2.2 sec in total

First Response

498 ms

Resources Loaded

1.5 sec

Page Rendered

180 ms

keeler.co.uk screenshot

About Website

Welcome to keeler.co.uk homepage info - get ready to check Keeler best content for United Kingdom right away, or after learning these important things about keeler.co.uk

With over 100 years of experience, Keeler has become a household name in Ophthalmic Diagnostic Equipment, Ophthalmic Ultrasound through the addition of Accutome and Ophthalmic Cryosurgical Equipment.

Visit keeler.co.uk

Key Findings

We analyzed Keeler.co.uk page load time and found that the first response time was 498 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

keeler.co.uk performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value27.7 s

0/100

25%

SI (Speed Index)

Value18.8 s

0/100

10%

TBT (Total Blocking Time)

Value2,750 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.718

7/100

15%

TTI (Time to Interactive)

Value41.7 s

0/100

10%

Network Requests Diagram

keeler.co.uk

498 ms

shop.css

197 ms

keeler.css

296 ms

catnav.css

199 ms

dropdown.js

202 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 94% of them (32 requests) were addressed to the original Keeler.co.uk, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (782 ms) belongs to the original domain Keeler.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 165.1 kB (30%)

Content Size

550.3 kB

After Optimization

385.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Keeler.co.uk main page is 550.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 405.1 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 18.4 kB

  • Original 23.3 kB
  • After minification 19.2 kB
  • After compression 4.9 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 4.1 kB, which is 18% 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 18.4 kB or 79% of the original size.

Image Optimization

-13%

Potential reduce by 54.7 kB

  • Original 405.1 kB
  • After minification 350.4 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. Obviously, Keeler needs image optimization as it can save up to 54.7 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 66.8 kB

  • Original 92.6 kB
  • After minification 77.8 kB
  • After compression 25.7 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 66.8 kB or 72% of the original size.

CSS Optimization

-86%

Potential reduce by 25.3 kB

  • Original 29.4 kB
  • After minification 16.4 kB
  • After compression 4.2 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. Keeler.co.uk needs all CSS files to be minified and compressed as it can save up to 25.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (27%)

Requests Now

33

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Keeler. 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 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

keeler.co.uk

keeler.co.uk

498 ms

shop.css

shop.css

197 ms

keeler.css

keeler.css

296 ms

catnav.css

catnav.css

199 ms

dropdown.js

dropdown.js

202 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

302 ms

vs350.js

vs350.js

305 ms

SpryCollapsiblePanel.js

SpryCollapsiblePanel.js

297 ms

SpryAccordion.js

SpryAccordion.js

320 ms

SpryAccordion.css

SpryAccordion.css

239 ms

jobsatkeelerheader.jpg

jobsatkeelerheader.jpg

678 ms

studentbanner2014.jpg

studentbanner2014.jpg

782 ms

subscribe.gif

subscribe.gif

100 ms

keeler.css

keeler.css

110 ms

contact.gif

contact.gif

111 ms

go.gif

go.gif

111 ms

logo-keeler-new.gif

logo-keeler-new.gif

246 ms

dkatbanner.gif

dkatbanner.gif

592 ms

Keeler-Symphony-Range-725x220-web-banner-0815-v1.jpg

Keeler-Symphony-Range-725x220-web-banner-0815-v1.jpg

394 ms

spectra_iris_banner_725x220.jpg

spectra_iris_banner_725x220.jpg

498 ms

newproductsconcertina.jpg

newproductsconcertina.jpg

398 ms

thinlinkedin.jpg

thinlinkedin.jpg

340 ms

thinfb.jpg

thinfb.jpg

449 ms

slit-lamp-90px-wht-03.jpg

slit-lamp-90px-wht-03.jpg

442 ms

PSL%2082549%2090x90.jpg

PSL%2082549%2090x90.jpg

591 ms

pulsairintellipuff_90x90.jpg

pulsairintellipuff_90x90.jpg

498 ms

KAT_BQ_90x90.jpg

KAT_BQ_90x90.jpg

545 ms

Blue%2090x90.jpg

Blue%2090x90.jpg

550 ms

dkat90x90.jpg

dkat90x90.jpg

600 ms

lithiumupgrade_90x90.jpg

lithiumupgrade_90x90.jpg

602 ms

Prism_KAP_90x90.jpg

Prism_KAP_90x90.jpg

648 ms

A_HALMA_COMPANY_136x16.jpg

A_HALMA_COMPANY_136x16.jpg

650 ms

ga.js

ga.js

8 ms

__utm.gif

__utm.gif

13 ms

Accessibility Review

keeler.co.uk accessibility score

83

Accessibility Issues

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

Form elements do not have associated labels

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

keeler.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

keeler.co.uk SEO score

82

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Keeler.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Keeler.co.uk main page’s claimed encoding is iso-8859-1. 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

keeler.co.uk

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