Tools & Wizards About Us
certifiedroofing.info screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

certifiedroofing.info

San Jose Roofing, Re-Roofing & Repair Contractor | Certified Roofing

Page Load Speed

1.4 sec in total

First Response

137 ms

Resources Loaded

617 ms

Page Rendered

681 ms

certifiedroofing.info screenshot

About Website

Welcome to certifiedroofing.info homepage info - get ready to check Certified Roofing best content right away, or after learning these important things about certifiedroofing.info

Certified Roofing company is a full-service San Jose, CA and South Bay Area roofing, reroofing and roof repair contractor. Free estimates & inspections:(408) 226-2222.

Visit certifiedroofing.info

Key Findings

We analyzed Certifiedroofing.info page load time and found that the first response time was 137 ms and then it took 1.3 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

certifiedroofing.info performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value340 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0.491

17/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

Network Requests Diagram

certifiedroofing.info

137 ms

www.certifiedroofing.info

25 ms

js

58 ms

loader.js

234 ms

css

33 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 76% of them (34 requests) were addressed to the original Certifiedroofing.info, 11% (5 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (320 ms) belongs to the original domain Certifiedroofing.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.3 kB (3%)

Content Size

1.6 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Certifiedroofing.info main page is 1.6 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. 60% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 20.1 kB

  • Original 28.0 kB
  • After minification 25.8 kB
  • After compression 7.8 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 20.1 kB or 72% of the original size.

Image Optimization

-2%

Potential reduce by 30.0 kB

  • Original 1.5 MB
  • After minification 1.5 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. Certified Roofing images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 86 B

  • Original 69.9 kB
  • After minification 69.9 kB
  • After compression 69.8 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

-0%

Potential reduce by 152 B

  • Original 47.2 kB
  • After minification 47.2 kB
  • After compression 47.1 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. Certifiedroofing.info has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 10 (28%)

Requests Now

36

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certified 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 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

certifiedroofing.info

certifiedroofing.info

137 ms

www.certifiedroofing.info

www.certifiedroofing.info

25 ms

js

js

58 ms

loader.js

loader.js

234 ms

css

css

33 ms

bootstrap.min.css

bootstrap.min.css

241 ms

font-awesome.min.css

font-awesome.min.css

262 ms

style-custom.css

style-custom.css

254 ms

custombs.css

custombs.css

14 ms

logo-tag-certified.png

logo-tag-certified.png

13 ms

certified-slider-1B.jpg

certified-slider-1B.jpg

24 ms

San-jose-roofing-contractors.jpg

San-jose-roofing-contractors.jpg

17 ms

jquery.min.js

jquery.min.js

307 ms

bootstrap.js

bootstrap.js

318 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

319 ms

jquery.sticky.js

jquery.sticky.js

320 ms

certified-roofing.jpg

certified-roofing.jpg

267 ms

img.jpg

img.jpg

268 ms

img2.jpg

img2.jpg

266 ms

img3.jpg

img3.jpg

268 ms

img4.jpg

img4.jpg

268 ms

img5.jpg

img5.jpg

269 ms

img6.jpg

img6.jpg

270 ms

img7.jpg

img7.jpg

300 ms

img8.jpg

img8.jpg

300 ms

img9.jpg

img9.jpg

300 ms

img10.jpg

img10.jpg

301 ms

img11.jpg

img11.jpg

301 ms

img12.jpg

img12.jpg

302 ms

about1.png

about1.png

302 ms

visamastercard.jpg

visamastercard.jpg

303 ms

js

js

81 ms

analytics.js

analytics.js

16 ms

collect

collect

35 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

42 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

47 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

55 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

53 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

56 ms

collect

collect

28 ms

social_icons.png

social_icons.png

50 ms

banner-form-bg.png

banner-form-bg.png

51 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

122 ms

bx_loader.gif

bx_loader.gif

2 ms

controls.png

controls.png

3 ms

Accessibility Review

certifiedroofing.info accessibility score

76

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

certifiedroofing.info 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

SEO Factors

certifiedroofing.info SEO score

93

Search Engine Optimization Advices

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

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 Certifiedroofing.info 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 Certifiedroofing.info 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

certifiedroofing.info

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