Tools & Wizards About Us
certaxlondon.co.uk screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

certaxlondon.co.uk

Accounting Services | Small Business Accountants London, Certax

Page Load Speed

2.9 sec in total

First Response

258 ms

Resources Loaded

2.1 sec

Page Rendered

550 ms

certaxlondon.co.uk screenshot

About Website

Welcome to certaxlondon.co.uk homepage info - get ready to check Certax London best content right away, or after learning these important things about certaxlondon.co.uk

Certax Accounting London is a team of small business accountancy in London, dealing in all accounting services which values your business in UK.

Visit certaxlondon.co.uk

Key Findings

We analyzed Certaxlondon.co.uk page load time and found that the first response time was 258 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

certaxlondon.co.uk performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value1,540 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

certaxlondon.co.uk

258 ms

www.certaxlondon.co.uk

383 ms

css

40 ms

bootstrap.min.css

95 ms

slick.css

184 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 26% of them (32 requests) were addressed to the original Certaxlondon.co.uk, 51% (64 requests) were made to Fonts.gstatic.com and 10% (13 requests) were made to Embed.tawk.to. The less responsive or slowest element that took the longest time to load (743 ms) belongs to the original domain Certaxlondon.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 70.0 kB (6%)

Content Size

1.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Certaxlondon.co.uk main page is 1.2 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. Only a small number of websites need less resources to load. Images take 626.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 41.6 kB

  • Original 51.9 kB
  • After minification 41.0 kB
  • After compression 10.3 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 10.9 kB, which is 21% 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 41.6 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 865 B

  • Original 626.3 kB
  • After minification 625.5 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. Certax London images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 26.6 kB

  • Original 398.7 kB
  • After minification 398.6 kB
  • After compression 372.0 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

-1%

Potential reduce by 862 B

  • Original 88.5 kB
  • After minification 88.5 kB
  • After compression 87.6 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. Certaxlondon.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (45%)

Requests Now

58

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certax London. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

certaxlondon.co.uk

certaxlondon.co.uk

258 ms

www.certaxlondon.co.uk

www.certaxlondon.co.uk

383 ms

css

css

40 ms

bootstrap.min.css

bootstrap.min.css

95 ms

slick.css

slick.css

184 ms

style.css

style.css

280 ms

cookieconsent.min.css

cookieconsent.min.css

31 ms

cookieconsent.min.js

cookieconsent.min.js

41 ms

DMCABadgeHelper.min.js

DMCABadgeHelper.min.js

22 ms

all.min.js

all.min.js

409 ms

js

js

67 ms

2sPo71s9_4w

2sPo71s9_4w

272 ms

dmca_protected_sml_120m.png

dmca_protected_sml_120m.png

117 ms

logo.gif

logo.gif

639 ms

contact-ico.png

contact-ico.png

128 ms

slider-bg1.jpg

slider-bg1.jpg

265 ms

sprite-icons.png

sprite-icons.png

201 ms

bookkeeping-thumb.jpg

bookkeeping-thumb.jpg

264 ms

tax-cons-thumb.jpg

tax-cons-thumb.jpg

513 ms

payroll-thumb.jpg

payroll-thumb.jpg

513 ms

vat-thumb.jpg

vat-thumb.jpg

515 ms

business-thumb.jpg

business-thumb.jpg

515 ms

self-assesment-thumb.jpg

self-assesment-thumb.jpg

637 ms

bg-image1.jpg

bg-image1.jpg

639 ms

bg-image2.jpg

bg-image2.jpg

642 ms

form-bg.png

form-bg.png

742 ms

check.png

check.png

641 ms

ebook-thumb.jpg

ebook-thumb.jpg

641 ms

whitepaper-thumb.jpg

whitepaper-thumb.jpg

640 ms

blog-thumb.jpg

blog-thumb.jpg

641 ms

taxguide-thumb.jpg

taxguide-thumb.jpg

678 ms

testimonials-bg.jpg

testimonials-bg.jpg

678 ms

metlo.jpg

metlo.jpg

679 ms

antoine.jpg

antoine.jpg

678 ms

grenville.jpg

grenville.jpg

678 ms

google-play.png

google-play.png

741 ms

app-store.png

app-store.png

743 ms

flogo.png

flogo.png

743 ms

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id

id

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Create

Create

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twk-arr-find-polyfill.js

twk-arr-find-polyfill.js

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twk-object-values-polyfill.js

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twk-entries-polyfill.js

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twk-main.js

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twk-app.js

twk-app.js

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GenerateIT

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Accessibility Review

certaxlondon.co.uk accessibility score

91

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

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.

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

certaxlondon.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

Page has valid source maps

SEO Factors

certaxlondon.co.uk SEO score

93

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

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 Certaxlondon.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 Certaxlondon.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

certaxlondon.co.uk

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