Tools & Wizards About Us
contactlenses.co.uk screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

contactlenses.co.uk

Contact Lenses UK | Cheap contact lenses online | Contactlenses.co.uk

Page Load Speed

4.9 sec in total

First Response

291 ms

Resources Loaded

4 sec

Page Rendered

601 ms

contactlenses.co.uk screenshot

About Website

Visit contactlenses.co.uk now to see the best up-to-date Contact Lenses content for United Kingdom and also check out these interesting facts you probably never knew about contactlenses.co.uk

Buy high quality, comfortable and cheap contact lenses online. UK's number 1 independent supplier of contact lenses. Free UK delivery on orders £35+.

Visit contactlenses.co.uk

Key Findings

We analyzed Contactlenses.co.uk page load time and found that the first response time was 291 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

contactlenses.co.uk performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value2,790 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

contactlenses.co.uk

291 ms

www.contactlenses.co.uk

1507 ms

css-ALL.min.css

688 ms

js

50 ms

tp.widget.bootstrap.min.js

14 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Contactlenses.co.uk, 81% (67 requests) were made to Res2.contactlenses.co.uk and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Contactlenses.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 133.2 kB (7%)

Content Size

2.0 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Contactlenses.co.uk main page is 2.0 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. 70% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 68.9 kB

  • Original 85.0 kB
  • After minification 79.2 kB
  • After compression 16.1 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 68.9 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 64.1 kB

  • Original 1.3 MB
  • After minification 1.2 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. Contact Lenses images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 62 B

  • Original 620.7 kB
  • After minification 620.7 kB
  • After compression 620.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 124 B

  • Original 50.4 kB
  • After minification 50.4 kB
  • After compression 50.3 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. Contactlenses.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (25%)

Requests Now

79

After Optimization

59

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Contact Lenses. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

contactlenses.co.uk

contactlenses.co.uk

291 ms

www.contactlenses.co.uk

www.contactlenses.co.uk

1507 ms

css-ALL.min.css

css-ALL.min.css

688 ms

js

js

50 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

14 ms

jquery.min.js

jquery.min.js

507 ms

jquery.cookie.js

jquery.cookie.js

412 ms

cookieList.js

cookieList.js

413 ms

yii.js

yii.js

415 ms

tether.min.js

tether.min.js

415 ms

bootstrap.min.js

bootstrap.min.js

507 ms

jquery-ui.min.js

jquery-ui.min.js

804 ms

cl.js

cl.js

510 ms

jquery.ui.autocomplete.html.js

jquery.ui.autocomplete.html.js

509 ms

yii.activeForm.js

yii.activeForm.js

673 ms

yii.validation.js

yii.validation.js

672 ms

twilio-flex-webchat.min.js

twilio-flex-webchat.min.js

445 ms

js

js

114 ms

analytics.js

analytics.js

602 ms

js

js

495 ms

fbevents.js

fbevents.js

502 ms

bat.js

bat.js

602 ms

146.png

146.png

496 ms

contact-lenses-co-uk-logo.png

contact-lenses-co-uk-logo.png

172 ms

12-female.png

12-female.png

496 ms

12-male.png

12-male.png

495 ms

12-unisex.png

12-unisex.png

499 ms

cateyebutterfly.svg

cateyebutterfly.svg

496 ms

geometricoctagonal.svg

geometricoctagonal.svg

647 ms

hexagonal.svg

hexagonal.svg

641 ms

oval.svg

oval.svg

648 ms

rectangular.svg

rectangular.svg

636 ms

round.svg

round.svg

643 ms

softenedrectangular.svg

softenedrectangular.svg

638 ms

square.svg

square.svg

738 ms

wayfarer.svg

wayfarer.svg

734 ms

32-female.png

32-female.png

824 ms

32-male.png

32-male.png

826 ms

32-unisex.png

32-unisex.png

824 ms

aviatorpilot.svg

aviatorpilot.svg

730 ms

227.jpg

227.jpg

1015 ms

icon-baggage.png

icon-baggage.png

826 ms

icon-cash.png

icon-cash.png

828 ms

icon-security.png

icon-security.png

917 ms

110.jpg

110.jpg

1012 ms

203.jpg

203.jpg

1015 ms

209.jpg

209.jpg

1395 ms

trustpilot-logo.jpg

trustpilot-logo.jpg

934 ms

acuvue.png

acuvue.png

1011 ms

1.jpg

1.jpg

1015 ms

ciba.jpg

ciba.jpg

1106 ms

12.jpg

12.jpg

1108 ms

25.jpg

25.jpg

1109 ms

3.jpg

3.jpg

1109 ms

5.jpg

5.jpg

1111 ms

stat.js

stat.js

494 ms

home-big-banner-2.jpg

home-big-banner-2.jpg

1168 ms

youtube.jpg

youtube.jpg

1167 ms

atrk.js

atrk.js

412 ms

partner-4.jpg

partner-4.jpg

1104 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1119 ms

gd2.gif

gd2.gif

758 ms

icon_visa.png

icon_visa.png

806 ms

icon_mastercard.png

icon_mastercard.png

805 ms

icon_amex.png

icon_amex.png

805 ms

icon_mastercard%20.png

icon_mastercard%20.png

822 ms

689952134759816

689952134759816

149 ms

collect

collect

32 ms

icon_bitcoin.png

icon_bitcoin.png

755 ms

icon_paypal.png

icon_paypal.png

755 ms

basket.png

basket.png

753 ms

nav-bg-3.jpg

nav-bg-3.jpg

755 ms

151.jpg

151.jpg

941 ms

star-full-active.svg

star-full-active.svg

840 ms

collect

collect

13 ms

star.svg

star.svg

756 ms

150.jpg

150.jpg

848 ms

141.jpg

141.jpg

753 ms

152.jpg

152.jpg

670 ms

1123.jpg

1123.jpg

758 ms

1836.jpg

1836.jpg

758 ms

1176.jpg

1176.jpg

758 ms

1818.jpg

1818.jpg

760 ms

Accessibility Review

contactlenses.co.uk accessibility score

86

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 input fields do not have accessible names

High

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

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

Best Practices

contactlenses.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

Serves images with low resolution

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

contactlenses.co.uk SEO score

90

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Contactlenses.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 Contactlenses.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

contactlenses.co.uk

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