Tools & Wizards About Us
delfastbikes.com screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

delfastbikes.com

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

Page Load Speed

1.7 sec in total

First Response

53 ms

Resources Loaded

927 ms

Page Rendered

743 ms

delfastbikes.com screenshot

About Website

Welcome to delfastbikes.com homepage info - get ready to check Delfast Bike S best content for United States right away, or after learning these important things about 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 delfastbikes.com

Key Findings

We analyzed Delfastbikes.com page load time and found that the first response time was 53 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

delfastbikes.com performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.0 s

65/100

10%

Network Requests Diagram

delfastbikes.com

53 ms

delfastbikes.com

173 ms

us.delfastbikes.com

497 ms

css2

29 ms

app.css

50 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 8% of them (2 requests) were addressed to the original Delfastbikes.com, 52% (13 requests) were made to Us.delfastbikes.com and 16% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (497 ms) relates to the external source Us.delfastbikes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 475.9 kB (18%)

Content Size

2.6 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Delfastbikes.com main page is 2.6 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. 50% 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 43.2 kB

  • Original 54.5 kB
  • After minification 51.4 kB
  • After compression 11.2 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 43.2 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, 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

-0%

Potential reduce by 35 B

  • Original 12.0 kB
  • After minification 12.0 kB
  • After compression 11.9 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. Delfastbikes.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (32%)

Requests Now

22

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

delfastbikes.com

delfastbikes.com

53 ms

delfastbikes.com

delfastbikes.com

173 ms

us.delfastbikes.com

us.delfastbikes.com

497 ms

css2

css2

29 ms

app.css

app.css

50 ms

css2

css2

45 ms

service_manager.js

service_manager.js

34 ms

polyfill.min.js

polyfill.min.js

44 ms

fetch.min.js

fetch.min.js

55 ms

symbol-es6.min.js

symbol-es6.min.js

68 ms

index.min.js

index.min.js

75 ms

gtm.js

gtm.js

84 ms

en_badge_web_generic.png

en_badge_web_generic.png

30 ms

menu-burger-new.svg

menu-burger-new.svg

22 ms

newlogoua.svg

newlogoua.svg

23 ms

region-new.svg

region-new.svg

21 ms

arrow-region.svg

arrow-region.svg

38 ms

basket-new.svg

basket-new.svg

84 ms

home-desktop.png

home-desktop.png

201 ms

main-app-back.png

main-app-back.png

203 ms

app-store.svg

app-store.svg

38 ms

phone.svg

phone.svg

48 ms

font

font

27 ms

email-decode.min.js

email-decode.min.js

39 ms

dtag.js

dtag.js

23 ms

Accessibility Review

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

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

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 Delfastbikes.com main page’s claimed encoding is . 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

delfastbikes.com

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