Tools & Wizards About Us
dmshvac.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

dmshvac.com

Home - Dave's Cooling and Heating - Frederick, MD HVAC Contractor

Page Load Speed

6.5 sec in total

First Response

36 ms

Resources Loaded

5.7 sec

Page Rendered

802 ms

dmshvac.com screenshot

About Website

Welcome to dmshvac.com homepage info - get ready to check Dms HVAC best content right away, or after learning these important things about dmshvac.com

Rave for Daves, Frederick, MD, Heating, Air Conditioning, HVAC, Cooling, Dave's Cooling & Heating, Service, Repair, Installation, Maintenance

Visit dmshvac.com

Key Findings

We analyzed Dmshvac.com page load time and found that the first response time was 36 ms and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dmshvac.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.0 s

0/100

25%

SI (Speed Index)

Value18.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.129

82/100

15%

TTI (Time to Interactive)

Value29.3 s

0/100

10%

Network Requests Diagram

dmshvac.com

36 ms

ravefordaves.com

40 ms

js

91 ms

facebook-review.css

15 ms

formidableforms.css

23 ms

Our browser made a total of 167 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Dmshvac.com, 62% (104 requests) were made to Ravefordaves.com and 26% (43 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (443 ms) relates to the external source Google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 548.9 kB (14%)

Content Size

3.8 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dmshvac.com main page is 3.8 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. Only a small number of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 267.8 kB

  • Original 312.4 kB
  • After minification 305.3 kB
  • After compression 44.6 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 267.8 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 215.6 kB

  • Original 2.6 MB
  • After minification 2.4 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. Dms HVAC images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 35.4 kB

  • Original 638.2 kB
  • After minification 638.2 kB
  • After compression 602.8 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

-13%

Potential reduce by 30.1 kB

  • Original 232.7 kB
  • After minification 232.7 kB
  • After compression 202.6 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. Dmshvac.com needs all CSS files to be minified and compressed as it can save up to 30.1 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 79 (68%)

Requests Now

116

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dms 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 44 to 1 for JavaScripts and from 37 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dmshvac.com

dmshvac.com

36 ms

ravefordaves.com

ravefordaves.com

40 ms

js

js

91 ms

facebook-review.css

facebook-review.css

15 ms

formidableforms.css

formidableforms.css

23 ms

view.css

view.css

25 ms

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32 ms

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wp-mediaelement.min.css

33 ms

public-main.css

public-main.css

31 ms

all.min.css

all.min.css

34 ms

simple-line-icons.min.css

simple-line-icons.min.css

32 ms

style.min.css

style.min.css

41 ms

css

css

70 ms

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elementor-icons.min.css

39 ms

frontend.min.css

frontend.min.css

51 ms

swiper.min.css

swiper.min.css

46 ms

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e-swiper.min.css

45 ms

frontend.min.css

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54 ms

animations.min.css

animations.min.css

76 ms

css

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80 ms

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65 ms

solid.min.css

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67 ms

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67 ms

jetpack.css

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72 ms

smartslider.min.css

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76 ms

css

css

103 ms

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70 ms

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76 ms

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75 ms

public-main.js

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77 ms

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80 ms

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77 ms

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96 ms

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94 ms

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77 ms

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93 ms

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94 ms

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Accessibility Review

dmshvac.com accessibility score

91

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

dmshvac.com best practices score

67

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

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

dmshvac.com SEO score

84

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Dmshvac.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 Dmshvac.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

dmshvac.com

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