Tools & Wizards About Us
coronatest.co.uk screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

coronatest.co.uk

Coronavirus Testing London, UK - COVID-19 Testing London

Page Load Speed

2.7 sec in total

First Response

172 ms

Resources Loaded

2.3 sec

Page Rendered

228 ms

coronatest.co.uk screenshot

About Website

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

COVID-19 testing London, UK offering FIT TO TRAVEL certificates for COVID-19. Choose from RT-PCR tests, Antigen tests, Antibody tests and LAMP tests. Book Coronavirus Test London online for fast servi...

Visit coronatest.co.uk

Key Findings

We analyzed Coronatest.co.uk page load time and found that the first response time was 172 ms and then it took 2.5 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

coronatest.co.uk performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value2,370 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

www.coronatest.co.uk

172 ms

minified.js

231 ms

focus-within-polyfill.js

224 ms

polyfill.min.js

213 ms

bootstrap-features.88016560.bundle.min.js

638 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Coronatest.co.uk, 48% (23 requests) were made to Static.wixstatic.com and 40% (19 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 499.5 kB (61%)

Content Size

815.6 kB

After Optimization

316.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Coronatest.co.uk main page is 815.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. HTML takes 599.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 471.9 kB

  • Original 599.6 kB
  • After minification 597.7 kB
  • After compression 127.7 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 471.9 kB or 79% of the original size.

Image Optimization

-17%

Potential reduce by 19.3 kB

  • Original 117.1 kB
  • After minification 97.8 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, Coronatest needs image optimization as it can save up to 19.3 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-8%

Potential reduce by 8.2 kB

  • Original 98.8 kB
  • After minification 98.8 kB
  • After compression 90.6 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.

Requests Breakdown

Number of requests can be reduced by 16 (40%)

Requests Now

40

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coronatest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.coronatest.co.uk

www.coronatest.co.uk

172 ms

minified.js

minified.js

231 ms

focus-within-polyfill.js

focus-within-polyfill.js

224 ms

polyfill.min.js

polyfill.min.js

213 ms

bootstrap-features.88016560.bundle.min.js

bootstrap-features.88016560.bundle.min.js

638 ms

main.dca78a96.bundle.min.js

main.dca78a96.bundle.min.js

203 ms

lodash.min.js

lodash.min.js

638 ms

react.production.min.js

react.production.min.js

463 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

636 ms

wix-perf-measure.bundle.min.js

wix-perf-measure.bundle.min.js

635 ms

react-dom.production.min.js

react-dom.production.min.js

643 ms

gtm.js

gtm.js

806 ms

logo%204.png

logo%204.png

972 ms

thunderbolt

thunderbolt

926 ms

1200px-NHS-Logo_svg.png

1200px-NHS-Logo_svg.png

1028 ms

London%20Biggin%20Hill%20Airport%20-%20Mansi%20Testi.jpg

London%20Biggin%20Hill%20Airport%20-%20Mansi%20Testi.jpg

1006 ms

airport-arrivals.jpg

airport-arrivals.jpg

966 ms

dos-and-donts-when-visiting-a-show-227681290.jpg

dos-and-donts-when-visiting-a-show-227681290.jpg

965 ms

A%2520box%2520of%2520Covid-19%2520rapid%2520test%252.jpg

A%2520box%2520of%2520Covid-19%2520rapid%2520test%252.jpg

999 ms

515fe5_a0d7303bab454f5195a579f03e3d1785~mv2.jpg

515fe5_a0d7303bab454f5195a579f03e3d1785~mv2.jpg

1152 ms

515fe5_366bbaee7eac48ea84800141856f1165~mv2.jpg

515fe5_366bbaee7eac48ea84800141856f1165~mv2.jpg

1165 ms

nsplsh_7829e19d192449019182e726670ac2ea~mv2.jpg

nsplsh_7829e19d192449019182e726670ac2ea~mv2.jpg

1148 ms

7_%20BHA%20logo%20-%20Master%20Logo%20-%20White%20Backgr.jpg

7_%20BHA%20logo%20-%20Master%20Logo%20-%20White%20Backgr.jpg

1176 ms

Bombardier_Aviation-Logo_edited.png

Bombardier_Aviation-Logo_edited.png

1149 ms

Air_Hamburg_Logo_svg.png

Air_Hamburg_Logo_svg.png

1167 ms

vistajet_news_logo_edited.jpg

vistajet_news_logo_edited.jpg

1277 ms

Execujet_edited.jpg

Execujet_edited.jpg

1263 ms

globeair-new-logo_edited.jpg

globeair-new-logo_edited.jpg

1306 ms

voluxis-logo.jpg

voluxis-logo.jpg

1268 ms

Netjets.png

Netjets.png

1325 ms

signature-flight-support-vector-logo_edi.jpg

signature-flight-support-vector-logo_edi.jpg

1293 ms

a6c2a52d00a01edacf64fcb6d0e086d7.jpg

a6c2a52d00a01edacf64fcb6d0e086d7.jpg

1398 ms

logo_jpg_pagespeed_ce_ISzCQpRzAU.jpg

logo_jpg_pagespeed_ce_ISzCQpRzAU.jpg

1375 ms

arcus-air-group-vector-logo.png

arcus-air-group-vector-logo.png

1401 ms

tag-aviation-vector-logo.png

tag-aviation-vector-logo.png

1416 ms

Castle%20Air.png

Castle%20Air.png

1437 ms

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

64 ms

WmVKXVcOuffP_qmCpFuyzRsxEYwM7FgeyaSgU71cLG0.woff

WmVKXVcOuffP_qmCpFuyzRsxEYwM7FgeyaSgU71cLG0.woff

64 ms

STBOO2waD2LpX45SXYjQBRsxEYwM7FgeyaSgU71cLG0.woff

STBOO2waD2LpX45SXYjQBRsxEYwM7FgeyaSgU71cLG0.woff

62 ms

c5749443-93da-4592-b794-42f28d62ef72.woff

c5749443-93da-4592-b794-42f28d62ef72.woff

63 ms

thunderbolt

thunderbolt

10 ms

deprecation-en.v5.html

deprecation-en.v5.html

19 ms

bolt-performance

bolt-performance

83 ms

deprecation-style.v5.css

deprecation-style.v5.css

27 ms

right-arrow.svg

right-arrow.svg

54 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

5 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

7 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

7 ms

Accessibility Review

coronatest.co.uk accessibility score

97

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.

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

coronatest.co.uk best practices score

92

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

Page has valid source maps

SEO Factors

coronatest.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 Coronatest.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 Coronatest.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

coronatest.co.uk

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