Tools & Wizards About Us
blackdiamondhvac.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% 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

  • 98

    SEO

    Google-friendlier than
    92% of websites

blackdiamondhvac.com

Black Diamond Heating & Air Conditioning Repair Install Oakley CA

Page Load Speed

3.9 sec in total

First Response

807 ms

Resources Loaded

2.8 sec

Page Rendered

341 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 Brentwood & Discovery Bay, CA.

Visit blackdiamondhvac.com

Key Findings

We analyzed Blackdiamondhvac.com page load time and found that the first response time was 807 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

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

52/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value11.3 s

19/100

10%

Network Requests Diagram

blackdiamondhvac.com

807 ms

js

60 ms

js

91 ms

style.min.css

126 ms

theme.min.css

191 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 68% of them (54 requests) were addressed to the original Blackdiamondhvac.com, 14% (11 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (807 ms) belongs to the original domain Blackdiamondhvac.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 187.6 kB (22%)

Content Size

852.1 kB

After Optimization

664.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackdiamondhvac.com main page is 852.1 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. 55% of websites need less resources to load. Images take 385.4 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 164.8 kB

  • Original 190.4 kB
  • After minification 187.3 kB
  • After compression 25.6 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 164.8 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 130 B

  • Original 385.4 kB
  • After minification 385.3 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

-7%

Potential reduce by 14.7 kB

  • Original 196.6 kB
  • After minification 196.6 kB
  • After compression 181.9 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

-10%

Potential reduce by 8.0 kB

  • Original 79.8 kB
  • After minification 79.8 kB
  • After compression 71.7 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 45 (73%)

Requests Now

62

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 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 26 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackdiamondhvac.com

blackdiamondhvac.com

807 ms

js

js

60 ms

js

js

91 ms

style.min.css

style.min.css

126 ms

theme.min.css

theme.min.css

191 ms

header-footer.min.css

header-footer.min.css

205 ms

elementor-icons.min.css

elementor-icons.min.css

202 ms

frontend-lite.min.css

frontend-lite.min.css

272 ms

swiper.min.css

swiper.min.css

206 ms

post-6.css

post-6.css

204 ms

frontend-lite.min.css

frontend-lite.min.css

256 ms

global.css

global.css

269 ms

post-8.css

post-8.css

266 ms

post-1749.css

post-1749.css

269 ms

post-1758.css

post-1758.css

274 ms

front.min.css

front.min.css

320 ms

all.css

all.css

163 ms

v4-shims.css

v4-shims.css

205 ms

css

css

32 ms

fontawesome.min.css

fontawesome.min.css

331 ms

brands.min.css

brands.min.css

329 ms

solid.min.css

solid.min.css

333 ms

front.min.js

front.min.js

360 ms

sdk.js

sdk.js

20 ms

widget-nav-menu.min.css

widget-nav-menu.min.css

295 ms

widget-carousel.min.css

widget-carousel.min.css

325 ms

jquery.min.js

jquery.min.js

402 ms

jquery-migrate.min.js

jquery-migrate.min.js

362 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

379 ms

imagesloaded.min.js

imagesloaded.min.js

379 ms

webpack-pro.runtime.min.js

webpack-pro.runtime.min.js

378 ms

webpack.runtime.min.js

webpack.runtime.min.js

400 ms

frontend-modules.min.js

frontend-modules.min.js

420 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

444 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

445 ms

wp-polyfill.min.js

wp-polyfill.min.js

511 ms

hooks.min.js

hooks.min.js

452 ms

i18n.min.js

i18n.min.js

459 ms

frontend.min.js

frontend.min.js

468 ms

waypoints.min.js

waypoints.min.js

509 ms

core.min.js

core.min.js

509 ms

frontend.min.js

frontend.min.js

525 ms

js

js

39 ms

analytics.js

analytics.js

18 ms

elements-handlers.min.js

elements-handlers.min.js

513 ms

collect

collect

13 ms

underscore.min.js

underscore.min.js

482 ms

wp-util.min.js

wp-util.min.js

459 ms

frontend.min.js

frontend.min.js

446 ms

black-diamond-logo.png

black-diamond-logo.png

320 ms

york-ac-install-min.jpg

york-ac-install-min.jpg

440 ms

york-furnace-install-min.jpg

york-furnace-install-min.jpg

321 ms

york-commercial.jpg

york-commercial.jpg

392 ms

furnace-installation.jpg

furnace-installation.jpg

431 ms

commercial-industrial-hvac.jpg

commercial-industrial-hvac.jpg

432 ms

Synchronyfinancial.png

Synchronyfinancial.png

368 ms

bbb.png

bbb.png

382 ms

home-advisor.png

home-advisor.png

433 ms

york-Logo-white.png

york-Logo-white.png

448 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

66 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVQ.woff

67 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

84 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

91 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

105 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

105 ms

sdk.js

sdk.js

6 ms

york-home.jpg

york-home.jpg

402 ms

circle.svg

circle.svg

440 ms

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML7hwZrHQdg.woff

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML7hwZrHQdg.woff

24 ms

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML4pwZrHQdg.woff

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML4pwZrHQdg.woff

39 ms

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML-ZwZrHQdg.woff

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML-ZwZrHQdg.woff

59 ms

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML2Z3ZrHQdg.woff

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML2Z3ZrHQdg.woff

59 ms

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML193ZrHQdg.woff

RrQCbohi_ic6B3yVSzGBrMx6ZI_cy1A6Ok2ML193ZrHQdg.woff

39 ms

eicons.woff

eicons.woff

542 ms

fa-brands-400.woff

fa-brands-400.woff

483 ms

fa-brands-400.woff

fa-brands-400.woff

99 ms

like.php

like.php

84 ms

a7LoXQDbYK9.js

a7LoXQDbYK9.js

19 ms

FEppCFCt76d.png

FEppCFCt76d.png

17 ms

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

SEO Factors

blackdiamondhvac.com SEO score

98

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

High

Tap targets are not sized appropriately

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: