Tools & Wizards About Us
us.delfastbikes.com screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

us.delfastbikes.com

Electric bike at the best price power and range discounts available | Delfast e-bike

Page Load Speed

3.3 sec in total

First Response

589 ms

Resources Loaded

1.7 sec

Page Rendered

1 sec

us.delfastbikes.com screenshot

About Website

Click here to check amazing Us Delfast Bike S content for United States. Otherwise, check out these important facts you probably never knew about us.delfastbikes.com

Order best electric bike at 50 mph speed and up to 230 miles range on a single charge, worldwide delivery, installment plans availible | Delfast electric bikes power and range

Visit us.delfastbikes.com

Key Findings

We analyzed Us.delfastbikes.com page load time and found that the first response time was 589 ms and then it took 2.7 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

us.delfastbikes.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

80/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

us.delfastbikes.com

589 ms

css2

29 ms

app.css

178 ms

css2

41 ms

service_manager.js

28 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 33% of them (13 requests) were addressed to the original Us.delfastbikes.com, 10% (4 requests) were made to Cdn.jsdelivr.net and 10% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (615 ms) belongs to the original domain Us.delfastbikes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 485.1 kB (18%)

Content Size

2.7 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Us.delfastbikes.com main page is 2.7 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. 65% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 45.3 kB

  • Original 57.6 kB
  • After minification 54.5 kB
  • After compression 12.3 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 45.3 kB or 79% of the original size.

Image Optimization

-17%

Potential reduce by 432.6 kB

  • Original 2.5 MB
  • After minification 2.1 MB

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, Us Delfast Bike S needs image optimization as it can save up to 432.6 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

-9%

Potential reduce by 7.2 kB

  • Original 82.6 kB
  • After minification 82.6 kB
  • After compression 75.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 61.9 kB
  • After minification 61.9 kB
  • After compression 61.9 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. Us.delfastbikes.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (61%)

Requests Now

36

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Us Delfast Bike S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

us.delfastbikes.com

us.delfastbikes.com

589 ms

css2

css2

29 ms

app.css

app.css

178 ms

css2

css2

41 ms

service_manager.js

service_manager.js

28 ms

email-decode.min.js

email-decode.min.js

6 ms

dtag.js

dtag.js

285 ms

polyfill.min.js

polyfill.min.js

105 ms

fetch.min.js

fetch.min.js

118 ms

symbol-es6.min.js

symbol-es6.min.js

306 ms

index.min.js

index.min.js

125 ms

gtm.js

gtm.js

184 ms

en_badge_web_generic.png

en_badge_web_generic.png

127 ms

menu-burger-new.svg

menu-burger-new.svg

249 ms

newlogoua.svg

newlogoua.svg

235 ms

region-new.svg

region-new.svg

85 ms

arrow-region.svg

arrow-region.svg

98 ms

basket-new.svg

basket-new.svg

260 ms

home-desktop.png

home-desktop.png

615 ms

main-app-back.png

main-app-back.png

136 ms

app-store.svg

app-store.svg

245 ms

phone.svg

phone.svg

137 ms

font

font

99 ms

js

js

65 ms

js

js

267 ms

4764376.js

4764376.js

260 ms

analytics.js

analytics.js

376 ms

collect

collect

173 ms

4764376.js

4764376.js

136 ms

collectedforms.js

collectedforms.js

122 ms

conversations-embed.js

conversations-embed.js

101 ms

banner.js

banner.js

200 ms

ecommerce.js

ecommerce.js

45 ms

collect

collect

61 ms

collect

collect

29 ms

collect

collect

26 ms

collect

collect

19 ms

ga-audiences

ga-audiences

84 ms

ga-audiences

ga-audiences

77 ms

Accessibility Review

us.delfastbikes.com 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.

Best Practices

us.delfastbikes.com best practices score

83

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

us.delfastbikes.com 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 Us.delfastbikes.com 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 Us.delfastbikes.com 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

us.delfastbikes.com

Open Graph description is not detected on the main page of Us Delfast Bike S. 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: