Tools & Wizards About Us
cityoflondonblacktaxis.co.uk screenshot

Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

cityoflondonblacktaxis.co.uk

Page Load Speed

4.1 sec in total

First Response

371 ms

Resources Loaded

2.7 sec

Page Rendered

1 sec

cityoflondonblacktaxis.co.uk screenshot

About Website

Visit cityoflondonblacktaxis.co.uk now to see the best up-to-date Cityoflondonblacktaxis content and also check out these interesting facts you probably never knew about cityoflondonblacktaxis.co.uk

Providing London taxis and Routemaster buses. Black taxis in modern, classic and vintage style

Visit cityoflondonblacktaxis.co.uk

Key Findings

We analyzed Cityoflondonblacktaxis.co.uk page load time and found that the first response time was 371 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

cityoflondonblacktaxis.co.uk performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

82/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

www.cityoflondonblacktaxis.co.uk

371 ms

campaign.js

131 ms

vp.js

153 ms

common_published.css

164 ms

site.css

220 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 86% of them (64 requests) were addressed to the original Cityoflondonblacktaxis.co.uk, 4% (3 requests) were made to Platform.twitter.com and 3% (2 requests) were made to Static.addtoany.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cityoflondonblacktaxis.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 631.0 kB (72%)

Content Size

873.8 kB

After Optimization

242.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cityoflondonblacktaxis.co.uk main page is 873.8 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. 40% of websites need less resources to load. Javascripts take 716.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 54.0 kB

  • Original 67.3 kB
  • After minification 67.3 kB
  • After compression 13.3 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. 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 54.0 kB or 80% of the original size.

Image Optimization

-22%

Potential reduce by 12.3 kB

  • Original 55.8 kB
  • After minification 43.5 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. Obviously, Cityoflondonblacktaxis needs image optimization as it can save up to 12.3 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 536.1 kB

  • Original 716.6 kB
  • After minification 634.8 kB
  • After compression 180.5 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 536.1 kB or 75% of the original size.

CSS Optimization

-84%

Potential reduce by 28.6 kB

  • Original 34.0 kB
  • After minification 25.1 kB
  • After compression 5.4 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. Cityoflondonblacktaxis.co.uk needs all CSS files to be minified and compressed as it can save up to 28.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (58%)

Requests Now

73

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cityoflondonblacktaxis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cityoflondonblacktaxis.co.uk

www.cityoflondonblacktaxis.co.uk

371 ms

campaign.js

campaign.js

131 ms

vp.js

vp.js

153 ms

common_published.css

common_published.css

164 ms

site.css

site.css

220 ms

sw_lightbox.css

sw_lightbox.css

175 ms

tn3e.css

tn3e.css

176 ms

bg-1-346740.jpeg

bg-1-346740.jpeg

273 ms

bg-2a-346740.jpeg

bg-2a-346740.jpeg

209 ms

nav-346740-default-S-346740.png

nav-346740-default-S-346740.png

278 ms

nav-346740-CORPORATE-EVENTS-I-346740.png

nav-346740-CORPORATE-EVENTS-I-346740.png

241 ms

nav-346740-TAXIS-FOR-FILM-HIRE-I-346740.png

nav-346740-TAXIS-FOR-FILM-HIRE-I-346740.png

269 ms

nav-346740-WEDDINGS-I-346740.png

nav-346740-WEDDINGS-I-346740.png

283 ms

nav-346740-REVIEWS-AND-CONTACT-I-346740.png

nav-346740-REVIEWS-AND-CONTACT-I-346740.png

285 ms

nav-346740-TERMS-AND-CONDITIONS-I-346740.png

nav-346740-TERMS-AND-CONDITIONS-I-346740.png

326 ms

bg-2b-346740.jpeg

bg-2b-346740.jpeg

358 ms

0.08_0.22_0.05_0.08_616_514_csupload_67268764.jpg

0.08_0.22_0.05_0.08_616_514_csupload_67268764.jpg

515 ms

0_0_0_0_614_469_csupload_66742998.jpg

0_0_0_0_614_469_csupload_66742998.jpg

576 ms

0_0_0_0_638_333_csupload_66740228.jpg

0_0_0_0_638_333_csupload_66740228.jpg

527 ms

0.17_0.01_0.24_0.04_634_291_csupload_66740255.jpg

0.17_0.01_0.24_0.04_634_291_csupload_66740255.jpg

563 ms

0_0_0_0_617_398_csupload_66740292.jpg

0_0_0_0_617_398_csupload_66740292.jpg

722 ms

0_0_0_0_615_395_csupload_66740395.jpg

0_0_0_0_615_395_csupload_66740395.jpg

694 ms

0_0_0_0_607_457_csupload_65963676.jpg

0_0_0_0_607_457_csupload_65963676.jpg

771 ms

0_0_0_0_605_454_csupload_66740181.jpg

0_0_0_0_605_454_csupload_66740181.jpg

802 ms

0_0_0_0_618_533_csupload_65963758.jpg

0_0_0_0_618_533_csupload_65963758.jpg

791 ms

0_0_0_0_615_410_csupload_66740341.jpg

0_0_0_0_615_410_csupload_66740341.jpg

737 ms

0_0_0_0_304_72_csupload_21812956.jpg

0_0_0_0_304_72_csupload_21812956.jpg

779 ms

0_0_0_0_250_59_csupload_21812956.jpg

0_0_0_0_250_59_csupload_21812956.jpg

882 ms

0_0_0_0_72_66_csupload_35051442.jpg

0_0_0_0_72_66_csupload_35051442.jpg

802 ms

0_0_0_0_76_65_csupload_34883163.jpg

0_0_0_0_76_65_csupload_34883163.jpg

886 ms

bg-2c-346740.jpeg

bg-2c-346740.jpeg

849 ms

bg-4a-346740.jpeg

bg-4a-346740.jpeg

848 ms

bg-4b-346740.jpeg

bg-4b-346740.jpeg

865 ms

bg-4c-346740.jpeg

bg-4c-346740.jpeg

884 ms

bg-5-346740.jpeg

bg-5-346740.jpeg

975 ms

left.png

left.png

937 ms

vistaprint-site-red-209-42-2014.png

vistaprint-site-red-209-42-2014.png

946 ms

hosted_sites.js

hosted_sites.js

1146 ms

campaign_toolbar.js

campaign_toolbar.js

860 ms

right.png

right.png

853 ms

constants.js

constants.js

83 ms

provisioned.js

provisioned.js

79 ms

sw_lightbox.js

sw_lightbox.js

86 ms

sw_lightbox.init.js

sw_lightbox.init.js

90 ms

jquery.tn3.min.js

jquery.tn3.min.js

164 ms

campaign_toolbar.css

campaign_toolbar.css

98 ms

widgets.js

widgets.js

93 ms

page.js

page.js

41 ms

bg-3a-346740.jpeg

bg-3a-346740.jpeg

128 ms

bg-3b-346740.jpeg

bg-3b-346740.jpeg

115 ms

bg-3c-346740.jpeg

bg-3c-346740.jpeg

115 ms

expand.png

expand.png

115 ms

siteback-346740.jpeg

siteback-346740.jpeg

132 ms

lt-end-cap.gif

lt-end-cap.gif

167 ms

rt-end-cap.gif

rt-end-cap.gif

201 ms

close_button.png

close_button.png

202 ms

play_button.gif

play_button.gif

201 ms

next_button.png

next_button.png

198 ms

prev_button.png

prev_button.png

206 ms

sm13.html

sm13.html

78 ms

slice.gif

slice.gif

173 ms

like.php

like.php

212 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

155 ms

ga.js

ga.js

65 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.en.html

47 ms

qeKvIRsJabD.js

qeKvIRsJabD.js

53 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

49 ms

nav-346740-default-H-346740.png

nav-346740-default-H-346740.png

115 ms

nav-346740-CORPORATE-EVENTS-H-346740.png

nav-346740-CORPORATE-EVENTS-H-346740.png

118 ms

nav-346740-TAXIS-FOR-FILM-HIRE-H-346740.png

nav-346740-TAXIS-FOR-FILM-HIRE-H-346740.png

84 ms

nav-346740-WEDDINGS-H-346740.png

nav-346740-WEDDINGS-H-346740.png

127 ms

nav-346740-REVIEWS-AND-CONTACT-H-346740.png

nav-346740-REVIEWS-AND-CONTACT-H-346740.png

84 ms

nav-346740-TERMS-AND-CONDITIONS-H-346740.png

nav-346740-TERMS-AND-CONDITIONS-H-346740.png

116 ms

jot

jot

90 ms

Accessibility Review

cityoflondonblacktaxis.co.uk accessibility score

86

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.

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

Best Practices

cityoflondonblacktaxis.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

SEO Factors

cityoflondonblacktaxis.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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cityoflondonblacktaxis.co.uk can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Cityoflondonblacktaxis.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

cityoflondonblacktaxis.co.uk

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