Report Summary

  • 67

    Performance

    Renders faster than
    79% 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

  • 93

    SEO

    Google-friendlier than
    83% of websites

calvertsleep.com

Calvert Sleep Center • Sleep Well. Live Well • Prince Frederick, MD

Page Load Speed

1.7 sec in total

First Response

127 ms

Resources Loaded

1.3 sec

Page Rendered

208 ms

calvertsleep.com screenshot

About Website

Welcome to calvertsleep.com homepage info - get ready to check Calvert Sleep best content right away, or after learning these important things about calvertsleep.com

If you suffer from sleep deprivation, don’t delay. Dr. Kim Goring at Calvert Sleep Center in Prince Frederick, MD offers a unique, holistic approach to solving your sleep problems. Start treatment tod...

Visit calvertsleep.com

Key Findings

We analyzed Calvertsleep.com page load time and found that the first response time was 127 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

calvertsleep.com performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

calvertsleep.com

127 ms

calvertsleep.com

952 ms

js

111 ms

style.min.css

9 ms

style.css

24 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 81% of them (50 requests) were addressed to the original Calvertsleep.com, 10% (6 requests) were made to Fonts.gstatic.com and 5% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (952 ms) belongs to the original domain Calvertsleep.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 194.4 kB (27%)

Content Size

726.9 kB

After Optimization

532.5 kB

In fact, the total size of Calvertsleep.com main page is 726.9 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. 55% of websites need less resources to load. Images take 414.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 35.7 kB

  • Original 46.8 kB
  • After minification 44.7 kB
  • After compression 11.1 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 35.7 kB or 76% of the original size.

Image Optimization

-10%

Potential reduce by 42.6 kB

  • Original 414.8 kB
  • After minification 372.2 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. Calvert Sleep images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 10.4 kB

  • Original 109.8 kB
  • After minification 109.7 kB
  • After compression 99.4 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

-68%

Potential reduce by 105.8 kB

  • Original 155.5 kB
  • After minification 155.3 kB
  • After compression 49.7 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. Calvertsleep.com needs all CSS files to be minified and compressed as it can save up to 105.8 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (75%)

Requests Now

52

After Optimization

13

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Calvert Sleep. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

calvertsleep.com accessibility score

86

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

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

calvertsleep.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

SEO Factors

calvertsleep.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Calvertsleep.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 Calvertsleep.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

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