Tools & Wizards About Us
blackstoneappliances.com screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

blackstoneappliances.com

Blackstone Appliances - maker of the Blackstone Mosfet Overdrive

Page Load Speed

535 ms in total

First Response

118 ms

Resources Loaded

181 ms

Page Rendered

236 ms

blackstoneappliances.com screenshot

About Website

Click here to check amazing Blackstone Appliances content. Otherwise, check out these important facts you probably never knew about blackstoneappliances.com

The Blackstone Mosfet Overdrive is built in New York City and sold directly by the maker. Each unit is calibrated and tested by Jon Blackstone, and shipped out of Jon’s workshop in the East Village.

Visit blackstoneappliances.com

Key Findings

We analyzed Blackstoneappliances.com page load time and found that the first response time was 118 ms and then it took 417 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

blackstoneappliances.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value0.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.9 s

100/100

10%

Network Requests Diagram

blackstoneappliances.com

118 ms

3spectra4.png

10 ms

baLogo15.png

21 ms

GtrstDwg716.png

26 ms

ladies5gld.png

26 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Blackstoneappliances.com and no external sources were called. The less responsive or slowest element that took the longest time to load (118 ms) belongs to the original domain Blackstoneappliances.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.4 kB (23%)

Content Size

129.0 kB

After Optimization

99.6 kB

  • HTML
  • Images

In fact, the total size of Blackstoneappliances.com main page is 129.0 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. Only 10% of websites need less resources to load. Images take 102.7 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 16.9 kB

  • Original 26.3 kB
  • After minification 26.1 kB
  • After compression 9.4 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 16.9 kB or 64% of the original size.

Image Optimization

-12%

Potential reduce by 12.5 kB

  • Original 102.7 kB
  • After minification 90.1 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, Blackstone Appliances needs image optimization as it can save up to 12.5 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackstone Appliances. According to our analytics all requests are already optimized.

Network Requests Diagram

blackstoneappliances.com

blackstoneappliances.com

118 ms

3spectra4.png

3spectra4.png

10 ms

baLogo15.png

baLogo15.png

21 ms

GtrstDwg716.png

GtrstDwg716.png

26 ms

ladies5gld.png

ladies5gld.png

26 ms

2SV3.3gs16.png

2SV3.3gs16.png

20 ms

mosfetgld.png

mosfetgld.png

20 ms

blackstonegld.png

blackstonegld.png

19 ms

Accessibility Review

blackstoneappliances.com accessibility score

73

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

blackstoneappliances.com 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

blackstoneappliances.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

Image elements do not have [alt] attributes

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 Blackstoneappliances.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 Blackstoneappliances.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

blackstoneappliances.com

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