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opticalfilters.co.uk screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

opticalfilters.co.uk

Home Page | UK Site

Page Load Speed

1.5 sec in total

First Response

20 ms

Resources Loaded

859 ms

Page Rendered

635 ms

opticalfilters.co.uk screenshot

About Website

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

Optical Filters UK — The home for world-leading technology in display filters, EMIclare EMI Shielding, touch screen enhancement, and transparent heaters.

Visit opticalfilters.co.uk

Key Findings

We analyzed Opticalfilters.co.uk page load time and found that the first response time was 20 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

opticalfilters.co.uk performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.096

90/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

opticalfilters.co.uk

20 ms

www.opticalfilters.co.uk

18 ms

www.opticalfilters.co.uk

588 ms

css2

33 ms

swiper-bundle.min.css

39 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 23% of them (7 requests) were addressed to the original Opticalfilters.co.uk, 30% (9 requests) were made to Assets.nlcnet.net and 20% (6 requests) were made to Unpkg.com. The less responsive or slowest element that took the longest time to load (588 ms) belongs to the original domain Opticalfilters.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.4 kB (1%)

Content Size

4.0 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Opticalfilters.co.uk main page is 4.0 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. 35% of websites need less resources to load. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 41.5 kB

  • Original 50.9 kB
  • After minification 43.9 kB
  • After compression 9.4 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 7.0 kB, which is 14% 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 41.5 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 5.8 kB

  • Original 4.0 MB
  • After minification 4.0 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. Opticalfilters images are well optimized though.

CSS Optimization

-20%

Potential reduce by 2.0 kB

  • Original 9.9 kB
  • After minification 9.9 kB
  • After compression 7.9 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. Opticalfilters.co.uk needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (35%)

Requests Now

20

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opticalfilters. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

opticalfilters.co.uk

opticalfilters.co.uk

20 ms

www.opticalfilters.co.uk

www.opticalfilters.co.uk

18 ms

www.opticalfilters.co.uk

www.opticalfilters.co.uk

588 ms

css2

css2

33 ms

swiper-bundle.min.css

swiper-bundle.min.css

39 ms

style.css

style.css

57 ms

styles-45c952e16d.css

styles-45c952e16d.css

15 ms

js

js

81 ms

hyperscript.org@0.9.5

hyperscript.org@0.9.5

47 ms

scripts-0bf67c3b62.js

scripts-0bf67c3b62.js

29 ms

swiper-bundle.min.js

swiper-bundle.min.js

52 ms

script.js

script.js

55 ms

logo.png

logo.png

8 ms

N1A9023.png

N1A9023.png

165 ms

N1A8030.png

N1A8030.png

184 ms

N1A8753.png

N1A8753.png

178 ms

MRI-room-with-screens.png

MRI-room-with-screens.png

164 ms

N1A8408.png

N1A8408.png

178 ms

N1A8169.png

N1A8169.png

178 ms

N1A8351.png

N1A8351.png

183 ms

N1A8034.png

N1A8034.png

184 ms

swiper-bundle.min.css

swiper-bundle.min.css

23 ms

_hyperscript_web.min.js

_hyperscript_web.min.js

26 ms

swiper-bundle.min.js

swiper-bundle.min.js

26 ms

pattern-no-background.png

pattern-no-background.png

118 ms

tcg-signature.png

tcg-signature.png

150 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

137 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

143 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

35 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

1 ms

Accessibility Review

opticalfilters.co.uk accessibility score

91

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.

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 IDs are not unique

Best Practices

opticalfilters.co.uk best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

opticalfilters.co.uk SEO score

100

Search Engine Optimization Advices

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opticalfilters.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 Opticalfilters.co.uk main page’s claimed encoding is . 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

opticalfilters.co.uk

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