Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

blackbirdbikes.com

Blackbird Bikes EZ Quadribents Side-By-Side Recumbent Bicycles for two people with cargo platform

Page Load Speed

631 ms in total

First Response

69 ms

Resources Loaded

303 ms

Page Rendered

259 ms

blackbirdbikes.com screenshot

About Website

Visit blackbirdbikes.com now to see the best up-to-date Blackbird Bikes content and also check out these interesting facts you probably never knew about blackbirdbikes.com

Bicycles for two side-by-side EZ Quadribent by Blackbird Bikes, built-in cargo platform, adaptive custom and other accessories side by side social tandem

Visit blackbirdbikes.com

Key Findings

We analyzed Blackbirdbikes.com page load time and found that the first response time was 69 ms and then it took 562 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

blackbirdbikes.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

blackbirdbikes.com

69 ms

template.css

25 ms

style.css

41 ms

color.css

48 ms

navigation.css

45 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 90% of them (26 requests) were addressed to the original Blackbirdbikes.com, 7% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (113 ms) belongs to the original domain Blackbirdbikes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.9 kB (10%)

Content Size

445.0 kB

After Optimization

399.0 kB

In fact, the total size of Blackbirdbikes.com main page is 445.0 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. 30% of websites need less resources to load. Images take 368.9 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 9.9 kB

  • Original 14.0 kB
  • After minification 13.3 kB
  • After compression 4.1 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 9.9 kB or 71% of the original size.

Image Optimization

-0%

Potential reduce by 324 B

  • Original 368.9 kB
  • After minification 368.6 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. Blackbird Bikes images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 32.0 kB

  • Original 52.9 kB
  • After minification 52.9 kB
  • After compression 20.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.0 kB or 60% of the original size.

CSS Optimization

-41%

Potential reduce by 3.7 kB

  • Original 9.2 kB
  • After minification 9.2 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. Blackbirdbikes.com needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 41% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (11%)

Requests Now

28

After Optimization

25

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackbird Bikes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

blackbirdbikes.com accessibility score

93

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

blackbirdbikes.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

blackbirdbikes.com SEO score

75

Search Engine Optimization Advices

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 Blackbirdbikes.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 Blackbirdbikes.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

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