Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

cpni.gov.uk

National Protective Security Authority | NPSA

Page Load Speed

719 ms in total

First Response

170 ms

Resources Loaded

548 ms

Page Rendered

1 ms

cpni.gov.uk screenshot

About Website

Click here to check amazing Cpni content for United Kingdom. Otherwise, check out these important facts you probably never knew about cpni.gov.uk

National Protective Security Authority (NPSA) - the UK government’s National Technical Authority for physical and personnel protective security.

Visit cpni.gov.uk

Key Findings

We analyzed Cpni.gov.uk page load time and found that the first response time was 170 ms and then it took 549 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

cpni.gov.uk performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value8.0 s

21/100

10%

TBT (Total Blocking Time)

Value2,150 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.335

34/100

15%

TTI (Time to Interactive)

Value19.3 s

2/100

10%

Network Requests Diagram

cpni.gov.uk

170 ms

www.npsa.gov.uk

309 ms

v1

66 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that 33% of them (1 request) were addressed to the original Cpni.gov.uk, 67% (2 requests) were made to Npsa.gov.uk. The less responsive or slowest element that took the longest time to load (309 ms) relates to the external source Npsa.gov.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.3 MB (9%)

Content Size

26.1 MB

After Optimization

23.7 MB

In fact, the total size of Cpni.gov.uk main page is 26.1 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 24.8 MB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 69.4 kB

  • Original 215.0 kB
  • After minification 214.8 kB
  • After compression 145.6 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 69.4 kB or 32% of the original size.

Image Optimization

-6%

Potential reduce by 1.6 MB

  • Original 24.8 MB
  • After minification 23.3 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. Cpni images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 37.5 kB

  • Original 215.8 kB
  • After minification 215.8 kB
  • After compression 178.3 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 37.5 kB or 17% of the original size.

CSS Optimization

-80%

Potential reduce by 657.5 kB

  • Original 825.9 kB
  • After minification 183.6 kB
  • After compression 168.3 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. Cpni.gov.uk needs all CSS files to be minified and compressed as it can save up to 657.5 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

1

After Optimization

1

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cpni. According to our analytics all requests are already optimized.

Accessibility Review

cpni.gov.uk accessibility score

100

Accessibility Issues

Best Practices

cpni.gov.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cpni.gov.uk SEO score

91

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

    N/A

  • Encoding

    UTF-8

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

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