Tools & Wizards About Us

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

nationalroofing.us

National Roofing & Sheet Metal | Roof Services| Detroit MI

Page Load Speed

1.4 sec in total

First Response

211 ms

Resources Loaded

1 sec

Page Rendered

140 ms

About Website

Visit nationalroofing.us now to see the best up-to-date National Roofing content and also check out these interesting facts you probably never knew about nationalroofing.us

Since 1949, National Roofing has provided expert roof installations and repairs in Michigan and throughout the United States.

Visit nationalroofing.us

Key Findings

We analyzed Nationalroofing.us page load time and found that the first response time was 211 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

nationalroofing.us performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

nationalroofing.us

211 ms

nationalroofing.us

297 ms

styles.css.php

74 ms

jquery.min.js

431 ms

jquery.superfish.hoverIntent.js

366 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 72% of them (21 requests) were addressed to the original Nationalroofing.us, 28% (8 requests) were made to Cdn.mywebsitebuild.com. The less responsive or slowest element that took the longest time to load (484 ms) belongs to the original domain Nationalroofing.us.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.6 kB (3%)

Content Size

365.3 kB

After Optimization

354.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Nationalroofing.us main page is 365.3 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. 15% of websites need less resources to load. Images take 315.8 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 7.5 kB

  • Original 10.2 kB
  • After minification 9.2 kB
  • After compression 2.7 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 7.5 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 851 B

  • Original 315.8 kB
  • After minification 315.0 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. National Roofing images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 2.2 kB

  • Original 39.3 kB
  • After minification 39.0 kB
  • After compression 37.0 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.

Requests Breakdown

Number of requests can be reduced by 9 (36%)

Requests Now

25

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Roofing. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

nationalroofing.us accessibility score

100

Accessibility Issues

Best Practices

nationalroofing.us best practices score

50

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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

nationalroofing.us SEO score

77

Search Engine Optimization Advices

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 Nationalroofing.us 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 Nationalroofing.us 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

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