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Report Summary

About Website

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name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value3.0 s

95/100

10%

yellowandblackcab.com

82 ms

domain_profile.cfm

296 ms

common.css

87 ms

v3.css

67 ms

pages_v3b.css

61 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 Yellowandblackcab.com, 75% (27 requests) were made to Static.hugedomains.com and 11% (4 requests) were made to Hugedomains.com. The less responsive or slowest element that took the longest time to load (400 ms) relates to the external source Hugedomains.com.

Content Size

485.6 kB

After Optimization

314.8 kB

In fact, the total size of Yellowandblackcab.com main page is 485.6 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. 35% of websites need less resources to load. Images take 220.9 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 10.1 kB

Original 14.8 kB
After minification 14.6 kB
After compression 4.6 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 10.1 kB or 69% of the original size.

Image Optimization

-2%

Potential reduce by 5.0 kB

Original 220.9 kB
After minification 215.9 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. Yellowandblackcab images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 64.0 kB

Original 127.4 kB
After minification 127.3 kB
After compression 63.4 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 64.0 kB or 50% of the original size.

CSS Optimization

-75%

Potential reduce by 91.7 kB

Original 122.5 kB
After minification 120.7 kB
After compression 30.8 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. Yellowandblackcab.com needs all CSS files to be minified and compressed as it can save up to 91.7 kB or 75% of the original size.

Requests Now

After Optimization

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yellowandblackcab. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

Search Engine Optimization Advices

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/).

High

Document doesn't use legible font sizes

Language and Encoding

Language Detected

EN
Language Claimed

N/A
Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yellowandblackcab.com 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 Yellowandblackcab.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

yellowandblackcab.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

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Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)