Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 85

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

customs.hmrc.gov.uk

HM Revenue & Customs - GOV.UK

Page Load Speed

2 sec in total

First Response

495 ms

Resources Loaded

1.1 sec

Page Rendered

410 ms

customs.hmrc.gov.uk screenshot

About Website

Click here to check amazing Customs HM Rc content for United Kingdom. Otherwise, check out these important facts you probably never knew about customs.hmrc.gov.uk

We are the UK’s tax, payments and customs authority, and we have a vital purpose: we collect the money that pays for the UK’s public services and help families and individuals with targeted financial ...

Visit customs.hmrc.gov.uk

Key Findings

We analyzed Customs.hmrc.gov.uk page load time and found that the first response time was 495 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

customs.hmrc.gov.uk performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.631

10/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

customs.hmrc.gov.uk

495 ms

hm-revenue-customs

57 ms

govuk-template-78368781f77ad5f036d7f8bada53f0034cbc4b5ddb127d4cf0380702a1f77864.css

67 ms

fonts-5ff8c53913434afd0072a480d7cfca67cace4c8d03f6ef96b78a4455728ce745.css

126 ms

header-footer-only-294d5f0f9be335ce5c6ca307abda2a1f4e8d61ae821c686f276f8c17446da319.css

78 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Customs.hmrc.gov.uk, 83% (30 requests) were made to Assets.digital.cabinet-office.gov.uk and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (495 ms) belongs to the original domain Customs.hmrc.gov.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 793.4 kB (57%)

Content Size

1.4 MB

After Optimization

587.9 kB

In fact, the total size of Customs.hmrc.gov.uk main page is 1.4 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. 60% of websites need less resources to load. CSS take 784.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 36.2 kB

  • Original 46.7 kB
  • After minification 41.3 kB
  • After compression 10.5 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 5.5 kB, which is 12% 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 36.2 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 24.7 kB

  • Original 234.8 kB
  • After minification 210.1 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, Customs HM Rc needs image optimization as it can save up to 24.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 206.0 kB

  • Original 315.1 kB
  • After minification 312.7 kB
  • After compression 109.1 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 206.0 kB or 65% of the original size.

CSS Optimization

-67%

Potential reduce by 526.5 kB

  • Original 784.7 kB
  • After minification 781.1 kB
  • After compression 258.2 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. Customs.hmrc.gov.uk needs all CSS files to be minified and compressed as it can save up to 526.5 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (53%)

Requests Now

32

After Optimization

15

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Customs HM Rc. 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 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

customs.hmrc.gov.uk accessibility score

100

Accessibility Issues

Best Practices

customs.hmrc.gov.uk best practices score

85

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

SEO Factors

customs.hmrc.gov.uk SEO score

99

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

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 Customs.hmrc.gov.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 Customs.hmrc.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 Customs HM Rc. 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: