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blackdiamondhvac.com screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

blackdiamondhvac.com

Black Diamond Heating & Air Conditioning Repair Install Oakley CA

Page Load Speed

3.9 sec in total

First Response

880 ms

Resources Loaded

2.7 sec

Page Rendered

344 ms

blackdiamondhvac.com screenshot

About Website

Welcome to blackdiamondhvac.com homepage info - get ready to check Black Diamond Hvac best content right away, or after learning these important things about blackdiamondhvac.com

Need Residential, Commercial & Industrial HVAC in Oakley, CA? Call Black Diamond Heating & Air Conditioning providing services in Oakley,Brentwood & Discovery Bay, CA.

Visit blackdiamondhvac.com

Key Findings

We analyzed Blackdiamondhvac.com page load time and found that the first response time was 880 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

blackdiamondhvac.com performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value440 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

blackdiamondhvac.com

880 ms

js

64 ms

js

85 ms

front.min.css

133 ms

style.min.css

199 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 41% of them (57 requests) were addressed to the original Blackdiamondhvac.com, 50% (70 requests) were made to Fonts.gstatic.com and 3% (4 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (880 ms) belongs to the original domain Blackdiamondhvac.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 160.5 kB (20%)

Content Size

786.3 kB

After Optimization

625.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackdiamondhvac.com main page is 786.3 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. 65% of websites need less resources to load. Images take 424.1 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 158.0 kB

  • Original 181.5 kB
  • After minification 178.4 kB
  • After compression 23.5 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 158.0 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 130 B

  • Original 424.1 kB
  • After minification 423.9 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. Black Diamond Hvac images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 887 B

  • Original 110.6 kB
  • After minification 110.6 kB
  • After compression 109.7 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

-2%

Potential reduce by 1.5 kB

  • Original 70.2 kB
  • After minification 70.2 kB
  • After compression 68.7 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. Blackdiamondhvac.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 46 (71%)

Requests Now

65

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Diamond Hvac. 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 from 31 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackdiamondhvac.com

blackdiamondhvac.com

880 ms

js

js

64 ms

js

js

85 ms

front.min.css

front.min.css

133 ms

style.min.css

style.min.css

199 ms

theme.min.css

theme.min.css

201 ms

header-footer.min.css

header-footer.min.css

199 ms

frontend.min.css

frontend.min.css

203 ms

widget-heading.min.css

widget-heading.min.css

200 ms

widget-image.min.css

widget-image.min.css

203 ms

widget-text-editor.min.css

widget-text-editor.min.css

283 ms

widget-nav-menu.min.css

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284 ms

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widget-social-icons.min.css

283 ms

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apple-webkit.min.css

275 ms

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285 ms

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swiper.min.css

273 ms

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342 ms

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342 ms

popup.min.css

popup.min.css

351 ms

widget-spacer.min.css

widget-spacer.min.css

351 ms

shapes.min.css

shapes.min.css

352 ms

widget-testimonial-carousel.min.css

widget-testimonial-carousel.min.css

355 ms

widget-reviews.min.css

widget-reviews.min.css

410 ms

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widget-star-rating.min.css

410 ms

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420 ms

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414 ms

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416 ms

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418 ms

all.css

all.css

37 ms

v4-shims.css

v4-shims.css

48 ms

css

css

38 ms

fontawesome.min.css

fontawesome.min.css

482 ms

brands.min.css

brands.min.css

480 ms

solid.min.css

solid.min.css

487 ms

front.min.js

front.min.js

493 ms

jquery.min.js

jquery.min.js

558 ms

jquery-migrate.min.js

jquery-migrate.min.js

494 ms

sdk.js

sdk.js

15 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

496 ms

imagesloaded.min.js

imagesloaded.min.js

495 ms

webpack-pro.runtime.min.js

webpack-pro.runtime.min.js

498 ms

webpack.runtime.min.js

webpack.runtime.min.js

498 ms

frontend-modules.min.js

frontend-modules.min.js

616 ms

hooks.min.js

hooks.min.js

544 ms

i18n.min.js

i18n.min.js

479 ms

frontend.min.js

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484 ms

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483 ms

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509 ms

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166 ms

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295 ms

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181 ms

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314 ms

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250 ms

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295 ms

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208 ms

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256 ms

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43 ms

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42 ms

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43 ms

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42 ms

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41 ms

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28 ms

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26 ms

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27 ms

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26 ms

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83 ms

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96 ms

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65 ms

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81 ms

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83 ms

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80 ms

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80 ms

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190 ms

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139 ms

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154 ms

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Accessibility Review

blackdiamondhvac.com accessibility score

96

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

blackdiamondhvac.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

blackdiamondhvac.com SEO score

100

Search Engine Optimization Advices

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 Blackdiamondhvac.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 Blackdiamondhvac.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

blackdiamondhvac.com

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