Tools & Wizards About Us
coler.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

coler.com

Insulation Company | Spray Foam Insulation Company - Coler Insulation

Page Load Speed

2 sec in total

First Response

173 ms

Resources Loaded

1.4 sec

Page Rendered

385 ms

coler.com screenshot

About Website

Click here to check amazing Coler content. Otherwise, check out these important facts you probably never knew about coler.com

Coler Natural Insulation provides insulation solutions for your home. Choose from spray foam, cellulose, low-e reflective & more. Call us today!

Visit coler.com

Key Findings

We analyzed Coler.com page load time and found that the first response time was 173 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

coler.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value23.7 s

0/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value1,710 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.221

56/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

www.coler.com

173 ms

www.coler.com

352 ms

platform.css

17 ms

webcomponents-lite.js

37 ms

theme.css

61 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 54% of them (22 requests) were addressed to the original Coler.com, 15% (6 requests) were made to Youtube.com and 7% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (352 ms) belongs to the original domain Coler.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 287.6 kB (12%)

Content Size

2.3 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coler.com main page is 2.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 19.9 kB

  • Original 26.2 kB
  • After minification 22.9 kB
  • After compression 6.3 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. This page needs HTML code to be minified as it can gain 3.3 kB, which is 12% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.9 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 42.3 kB

  • Original 1.6 MB
  • After minification 1.6 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. Coler images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 225.0 kB

  • Original 573.6 kB
  • After minification 573.6 kB
  • After compression 348.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 225.0 kB or 39% of the original size.

CSS Optimization

-0%

Potential reduce by 514 B

  • Original 103.6 kB
  • After minification 103.6 kB
  • After compression 103.1 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. Coler.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (51%)

Requests Now

35

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coler. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.coler.com

www.coler.com

173 ms

www.coler.com

www.coler.com

352 ms

platform.css

platform.css

17 ms

webcomponents-lite.js

webcomponents-lite.js

37 ms

theme.css

theme.css

61 ms

all.min.css

all.min.css

45 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

28 ms

jquery-migrate-1.2.1.min.js

jquery-migrate-1.2.1.min.js

30 ms

bootstrap.js

bootstrap.js

35 ms

ios-orientationchange-fix.js

ios-orientationchange-fix.js

48 ms

scripts.js

scripts.js

117 ms

frontend-shared.js

frontend-shared.js

58 ms

css

css

30 ms

hotjar-1570362.js

hotjar-1570362.js

203 ms

gtm.js

gtm.js

228 ms

3LG-G9vnjRE

3LG-G9vnjRE

194 ms

logo.png

logo.png

103 ms

nav-separator.png

nav-separator.png

98 ms

arrow-right.png

arrow-right.png

98 ms

84641561.jpg

84641561.jpg

111 ms

estimate_2.png

estimate_2.png

99 ms

contractor.png

contractor.png

112 ms

BCB_sm.gif

BCB_sm.gif

117 ms

NAHB_sm.gif

NAHB_sm.gif

116 ms

bpi_goldstar.png

bpi_goldstar.png

127 ms

facebook.png

facebook.png

116 ms

twitter.png

twitter.png

126 ms

youtube.png

youtube.png

130 ms

linkedin.png

linkedin.png

133 ms

fa-solid-900.woff

fa-solid-900.woff

35 ms

fa-regular-400.woff

fa-regular-400.woff

51 ms

www-player.css

www-player.css

9 ms

www-embed-player.js

www-embed-player.js

24 ms

base.js

base.js

59 ms

ad_status.js

ad_status.js

121 ms

asmjs.js

asmjs.js

105 ms

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

s9i9Iyk4Y_s1LD6aqz2X9kjqPppJUVpoTsMZDucYENo.js

136 ms

embed.js

embed.js

38 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

67 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

73 ms

id

id

60 ms

Accessibility Review

coler.com accessibility score

53

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

coler.com best practices score

75

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

Page has valid source maps

SEO Factors

coler.com SEO score

81

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

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

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 Coler.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 Coler.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

coler.com

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