Tools & Wizards About Us
opticalexpress.co.uk screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

opticalexpress.co.uk

Leading Laser Eye Surgery & Optical Specialists | Optical Express

Page Load Speed

5.8 sec in total

First Response

281 ms

Resources Loaded

5.1 sec

Page Rendered

355 ms

opticalexpress.co.uk screenshot

About Website

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

Leading laser eye surgery provider with world class technology and offer lens surgery, cataract surgery, glasses, and contact lenses | Optical Express

Visit opticalexpress.co.uk

Key Findings

We analyzed Opticalexpress.co.uk page load time and found that the first response time was 281 ms and then it took 5.5 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

opticalexpress.co.uk performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value2,310 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

opticalexpress.co.uk

281 ms

www.opticalexpress.co.uk

1558 ms

css

60 ms

site_v_20160229111232.min.css

1195 ms

print.css

444 ms

Our browser made a total of 129 requests to load all elements on the main page. We found that 26% of them (33 requests) were addressed to the original Opticalexpress.co.uk, 8% (10 requests) were made to Fonts.gstatic.com and 5% (6 requests) were made to Secure.livechatinc.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Opticalexpress.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (45%)

Content Size

3.8 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Opticalexpress.co.uk main page is 3.8 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. Javascripts take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 146.9 kB

  • Original 174.3 kB
  • After minification 98.9 kB
  • After compression 27.4 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 75.4 kB, which is 43% 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 146.9 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 21.2 kB

  • Original 1.6 MB
  • After minification 1.6 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. Optical Express images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 1.2 MB

  • Original 1.7 MB
  • After minification 1.4 MB
  • After compression 426.5 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 1.2 MB or 74% of the original size.

CSS Optimization

-82%

Potential reduce by 281.5 kB

  • Original 343.6 kB
  • After minification 341.2 kB
  • After compression 62.1 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. Opticalexpress.co.uk needs all CSS files to be minified and compressed as it can save up to 281.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 78 (70%)

Requests Now

111

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optical Express. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

opticalexpress.co.uk

opticalexpress.co.uk

281 ms

www.opticalexpress.co.uk

www.opticalexpress.co.uk

1558 ms

css

css

60 ms

site_v_20160229111232.min.css

site_v_20160229111232.min.css

1195 ms

print.css

print.css

444 ms

slimmage.min.js

slimmage.min.js

571 ms

seg.js.php

seg.js.php

30 ms

msScripts.min.js

msScripts.min.js

1194 ms

json2.min.js

json2.min.js

89 ms

require_v_20160229111231.min.js

require_v_20160229111231.min.js

914 ms

tag.js

tag.js

184 ms

oct.js

oct.js

134 ms

trustpilot_circle.png

trustpilot_circle.png

148 ms

newform-divide.png

newform-divide.png

141 ms

gtm.js

gtm.js

103 ms

fbevents.js

fbevents.js

200 ms

logo.png

logo.png

127 ms

spring-girl.jpg

spring-girl.jpg

1520 ms

spring-hikers.jpg

spring-hikers.jpg

1145 ms

form_banner-shine.png

form_banner-shine.png

250 ms

c1-1.jpg

c1-1.jpg

271 ms

c2-1.jpg

c2-1.jpg

299 ms

c3-1.jpg

c3-1.jpg

574 ms

c4-1.jpg

c4-1.jpg

416 ms

calculator-bg2.jpg

calculator-bg2.jpg

491 ms

suitability-bg2.jpg

suitability-bg2.jpg

607 ms

home_trustpilot_background-1.jpg

home_trustpilot_background-1.jpg

673 ms

activityi;src=4285763;type=optic853;cat=opex-154;ord=126626268029.21295

activityi;src=4285763;type=optic853;cat=opex-154;ord=126626268029.21295

126 ms

wrap

wrap

98 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

127 ms

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

210 ms

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

212 ms

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

212 ms

EInbV5DfGHOiMmvb1Xr-hnhCUOGz7vYGh680lGh-uXM.woff

EInbV5DfGHOiMmvb1Xr-hnhCUOGz7vYGh680lGh-uXM.woff

212 ms

icomoon.ttf

icomoon.ttf

839 ms

analytics.js

analytics.js

179 ms

tracking.js

tracking.js

260 ms

tc.min.js

tc.min.js

179 ms

ecab27c49a904bcd9ee5b94f4740258e.js

ecab27c49a904bcd9ee5b94f4740258e.js

174 ms

seg.php

seg.php

46 ms

spring-girl.jpg

spring-girl.jpg

933 ms

spring-hikers.jpg

spring-hikers.jpg

961 ms

home_trustpilot_background-1.jpg

home_trustpilot_background-1.jpg

766 ms

xjAJXh38I15wypJXxuGMBobN6UDyHWBl620a-IRfuBk.woff

xjAJXh38I15wypJXxuGMBobN6UDyHWBl620a-IRfuBk.woff

159 ms

PRmiXeptR36kaC0GEAetxh_xHqYgAV9Bl_ZQbYUxnQU.woff

PRmiXeptR36kaC0GEAetxh_xHqYgAV9Bl_ZQbYUxnQU.woff

162 ms

PRmiXeptR36kaC0GEAetxn5HxGBcBvicCpTp6spHfNo.woff

PRmiXeptR36kaC0GEAetxn5HxGBcBvicCpTp6spHfNo.woff

182 ms

PRmiXeptR36kaC0GEAetxjqR_3kx9_hJXbbyU8S6IN0.woff

PRmiXeptR36kaC0GEAetxjqR_3kx9_hJXbbyU8S6IN0.woff

182 ms

PRmiXeptR36kaC0GEAetxkCDe67GEgBv_HnyvHTfdew.woff

PRmiXeptR36kaC0GEAetxkCDe67GEgBv_HnyvHTfdew.woff

182 ms

capture-apps-4.7.1.js

capture-apps-4.7.1.js

57 ms

configlive_v_20160229111231.min.js

configlive_v_20160229111231.min.js

874 ms

152 ms

152 ms

iframeStorage.html

iframeStorage.html

160 ms

collect

collect

29 ms

ca.html

ca.html

87 ms

ca.html

ca.html

79 ms

script_data.js

script_data.js

487 ms

Pug

Pug

353 ms

cx

cx

392 ms

adb.gif

adb.gif

359 ms

1

1

382 ms

cs

cs

867 ms

sync

sync

359 ms

cx

cx

386 ms

cs

cs

903 ms

sync

sync

350 ms

adb.gif

adb.gif

996 ms

Pug

Pug

343 ms

1

1

373 ms

f997bd2865a95b1aa244a8a29c523038.js

f997bd2865a95b1aa244a8a29c523038.js

425 ms

iframeStorage.js

iframeStorage.js

247 ms

cm

cm

167 ms

tap.php

tap.php

46 ms

tap.php

tap.php

58 ms

demconf.jpg

demconf.jpg

33 ms

demconf.jpg

demconf.jpg

30 ms

rum

rum

98 ms

cm

cm

173 ms

rum

rum

95 ms

pixel

pixel

42 ms

360947.gif

360947.gif

32 ms

mapuid

mapuid

206 ms

360947.gif

360947.gif

84 ms

xrefid.xgi

xrefid.xgi

39 ms

170 ms

xrefid.xgi

xrefid.xgi

106 ms

cx

cx

120 ms

159 ms

cx

cx

114 ms

cm

cm

123 ms

xrefid.xgi

xrefid.xgi

108 ms

sd

sd

83 ms

362378.gif

362378.gif

78 ms

lr.gif

lr.gif

115 ms

sd

sd

79 ms

ea8115a790a7d2bdd13428c9efb832cc.js

ea8115a790a7d2bdd13428c9efb832cc.js

74 ms

14162e1f99271ababa5066eafafbef22.js

14162e1f99271ababa5066eafafbef22.js

89 ms

lr.gif

lr.gif

83 ms

localization.en.0.3632191afe35222a6b78c04d457adc0d_a7e145c5a943ab4f52ec953edf55944e.js

localization.en.0.3632191afe35222a6b78c04d457adc0d_a7e145c5a943ab4f52ec953edf55944e.js

77 ms

ping

ping

139 ms

open_chat.cgi

open_chat.cgi

118 ms

livechat-modern_7cf45543dc.ttf

livechat-modern_7cf45543dc.ttf

40 ms

19 ms

appsmanagerinit

appsmanagerinit

214 ms

pixel.gif

pixel.gif

58 ms

9k-RPmcnxYEPm8CNFsH2gg.woff

9k-RPmcnxYEPm8CNFsH2gg.woff

50 ms

embedded.20160229163048.js

embedded.20160229163048.js

91 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

572 ms

main.min.js

main.min.js

160 ms

_Incapsula_Resource

_Incapsula_Resource

28 ms

_Incapsula_Resource

_Incapsula_Resource

27 ms

wkfQbvfT_02e2IWO3yYueQ.woff

wkfQbvfT_02e2IWO3yYueQ.woff

35 ms

KT3KS9Aol4WfR6Vas8kNcg.woff

KT3KS9Aol4WfR6Vas8kNcg.woff

42 ms

plusone.js

plusone.js

114 ms

widgets.js

widgets.js

36 ms

like.php

like.php

68 ms

google.png

google.png

33 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

31 ms

vpc6VNjRPXV.js

vpc6VNjRPXV.js

311 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

347 ms

follow_button.6a78875565a912489e9aef879c881358.en.html

follow_button.6a78875565a912489e9aef879c881358.en.html

70 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

19 ms

jot

jot

87 ms

modernizr.min.js

modernizr.min.js

386 ms

smartresize.min.js

smartresize.min.js

112 ms

jquery.fancybox.min.js

jquery.fancybox.min.js

201 ms

jquery.matchHeight-min.js

jquery.matchHeight-min.js

283 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

497 ms

TweenLite.min.js

TweenLite.min.js

584 ms

Accessibility Review

opticalexpress.co.uk accessibility score

75

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

opticalexpress.co.uk best practices score

83

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

Page has valid source maps

SEO Factors

opticalexpress.co.uk SEO score

74

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

High

Image elements do not have [alt] attributes

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

    UTF-8

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

opticalexpress.co.uk

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