Tools & Wizards About Us
groundzeroshelters.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

groundzeroshelters.com

Tornado Shelters For Sale in Oklahoma City & Tulsa, OK

Page Load Speed

1.8 sec in total

First Response

85 ms

Resources Loaded

1.4 sec

Page Rendered

282 ms

groundzeroshelters.com screenshot

About Website

Welcome to groundzeroshelters.com homepage info - get ready to check Groundzero Shelters best content for United States right away, or after learning these important things about groundzeroshelters.com

Protect your family from the next tornado with Ground Zero's FEMA-compliant tornado shelters. We provide above ground safe rooms and undersground shelters.

Visit groundzeroshelters.com

Key Findings

We analyzed Groundzeroshelters.com page load time and found that the first response time was 85 ms and then it took 1.7 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

groundzeroshelters.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value1,540 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

groundzeroshelters.com

85 ms

www.groundzeroshelters.com

403 ms

allnew.min.css

33 ms

js

171 ms

99f4ca09755aac45a80f7e7.js

27 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 63% of them (27 requests) were addressed to the original Groundzeroshelters.com, 12% (5 requests) were made to Youtube.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (595 ms) belongs to the original domain Groundzeroshelters.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.3 kB (7%)

Content Size

534.1 kB

After Optimization

495.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Groundzeroshelters.com main page is 534.1 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. 80% 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. Javascripts take 235.8 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 23.6 kB

  • Original 31.6 kB
  • After minification 28.4 kB
  • After compression 8.0 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 23.6 kB or 75% of the original size.

Image Optimization

-6%

Potential reduce by 12.1 kB

  • Original 191.4 kB
  • After minification 179.3 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. Groundzero Shelters images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.6 kB

  • Original 235.8 kB
  • After minification 235.8 kB
  • After compression 233.2 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 32 B

  • Original 75.2 kB
  • After minification 75.2 kB
  • After compression 75.2 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. Groundzeroshelters.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (38%)

Requests Now

39

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Groundzero Shelters. 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

groundzeroshelters.com

groundzeroshelters.com

85 ms

www.groundzeroshelters.com

www.groundzeroshelters.com

403 ms

allnew.min.css

allnew.min.css

33 ms

js

js

171 ms

99f4ca09755aac45a80f7e7.js

99f4ca09755aac45a80f7e7.js

27 ms

jquery.allnew.min.js

jquery.allnew.min.js

121 ms

analytics.js

analytics.js

30 ms

gtm.js

gtm.js

132 ms

TNSuiwM_zUs

TNSuiwM_zUs

185 ms

logo_a12.png

logo_a12.png

128 ms

header-cell-number.png

header-cell-number.png

178 ms

header-menu-bar.jpg

header-menu-bar.jpg

190 ms

bgr-mainslider-shadow.png

bgr-mainslider-shadow.png

250 ms

three-column-title-bg.jpg

three-column-title-bg.jpg

252 ms

three-column-image-1_1485753086.png

three-column-image-1_1485753086.png

253 ms

three-column-image-2_1485753116.png

three-column-image-2_1485753116.png

253 ms

sider-bg.jpg

sider-bg.jpg

251 ms

ajax-loader.gif

ajax-loader.gif

429 ms

three-column-image-3.png

three-column-image-3.png

548 ms

companyi-logo-1_1485759399.png

companyi-logo-1_1485759399.png

549 ms

companyi-logo-4_1485759697.png

companyi-logo-4_1485759697.png

548 ms

companyi-logo-5_1486215044.png

companyi-logo-5_1486215044.png

547 ms

gz-wings_1713466442.jpg

gz-wings_1713466442.jpg

547 ms

button-bg.png

button-bg.png

588 ms

footer-bar.png

footer-bar.png

589 ms

facebook_1493753260.png

facebook_1493753260.png

588 ms

Twitter-round-GZ_1692903270.png

Twitter-round-GZ_1692903270.png

589 ms

Youtube_1493753277.png

Youtube_1493753277.png

587 ms

pinterest_1493752755.png

pinterest_1493752755.png

595 ms

collect

collect

54 ms

three-column-image-1.png

three-column-image-1.png

491 ms

three-column-image-2.png

three-column-image-2.png

475 ms

slider-left-image.png

slider-left-image.png

490 ms

www-player.css

www-player.css

16 ms

www-embed-player.js

www-embed-player.js

38 ms

base.js

base.js

74 ms

ad_status.js

ad_status.js

195 ms

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

129 ms

embed.js

embed.js

50 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

147 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

148 ms

id

id

124 ms

Create

Create

116 ms

Accessibility Review

groundzeroshelters.com accessibility score

86

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.

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

groundzeroshelters.com best practices score

83

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

Page has valid source maps

SEO Factors

groundzeroshelters.com SEO score

91

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

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 Groundzeroshelters.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 Groundzeroshelters.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

groundzeroshelters.com

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