Tools & Wizards About Us
devicelongevity.com screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

devicelongevity.com

Cardiac Resynchronization Therapy (CRT-D) & ICD Devices | Boston Scientific

Page Load Speed

931 ms in total

First Response

169 ms

Resources Loaded

570 ms

Page Rendered

192 ms

devicelongevity.com screenshot

About Website

Visit devicelongevity.com now to see the best up-to-date Devicelongevity content and also check out these interesting facts you probably never knew about devicelongevity.com

View the benefits of Boston Scientific’s cardiac resynchronization therapy (CRT) & implantable cardioverter defibrillator (ICD) devices engineered for longevity.

Visit devicelongevity.com

Key Findings

We analyzed Devicelongevity.com page load time and found that the first response time was 169 ms and then it took 762 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

devicelongevity.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value1.008

2/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

devicelongevity.com

169 ms

cardiac-resynchronization-therapy-icddevices.html

34 ms

corporate.lc-70451e1087ac5d7b254c28a7a9630d1a-lc.min.css

11 ms

jquery.lc-f9e8e8c279baf6a1a278042afe4f395a-lc.min.js

61 ms

utils.lc-899004cc02c33efc1f6694b1aee587fd-lc.min.js

95 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 96% of them (25 requests) were addressed to the original Devicelongevity.com, 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (169 ms) belongs to the original domain Devicelongevity.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.8 kB (23%)

Content Size

289.4 kB

After Optimization

222.6 kB

  • HTML
  • Images

In fact, the total size of Devicelongevity.com main page is 289.4 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. 60% of websites need less resources to load. Images take 232.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 49.9 kB

  • Original 56.8 kB
  • After minification 29.4 kB
  • After compression 6.9 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 27.3 kB, which is 48% 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 49.9 kB or 88% of the original size.

Image Optimization

-7%

Potential reduce by 16.9 kB

  • Original 232.7 kB
  • After minification 215.7 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. Devicelongevity images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 7 (35%)

Requests Now

20

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Devicelongevity. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

devicelongevity.com

devicelongevity.com

169 ms

cardiac-resynchronization-therapy-icddevices.html

cardiac-resynchronization-therapy-icddevices.html

34 ms

corporate.lc-70451e1087ac5d7b254c28a7a9630d1a-lc.min.css

corporate.lc-70451e1087ac5d7b254c28a7a9630d1a-lc.min.css

11 ms

jquery.lc-f9e8e8c279baf6a1a278042afe4f395a-lc.min.js

jquery.lc-f9e8e8c279baf6a1a278042afe4f395a-lc.min.js

61 ms

utils.lc-899004cc02c33efc1f6694b1aee587fd-lc.min.js

utils.lc-899004cc02c33efc1f6694b1aee587fd-lc.min.js

95 ms

granite.lc-011c0fc0d0cf131bdff879743a353002-lc.min.js

granite.lc-011c0fc0d0cf131bdff879743a353002-lc.min.js

70 ms

jquery.lc-dd9b395c741ce2784096e26619e14910-lc.min.js

jquery.lc-dd9b395c741ce2784096e26619e14910-lc.min.js

70 ms

shared.lc-e9d9a3990d7779c2e8e3361187f3d36b-lc.min.js

shared.lc-e9d9a3990d7779c2e8e3361187f3d36b-lc.min.js

71 ms

csrf.lc-56934e461ff6c436f962a5990541a527-lc.min.js

csrf.lc-56934e461ff6c436f962a5990541a527-lc.min.js

70 ms

corporate.lc-c762a3fe4e258bcfa8cb50d4fe827774-lc.min.js

corporate.lc-c762a3fe4e258bcfa8cb50d4fe827774-lc.min.js

70 ms

token.json

token.json

100 ms

gtm.js

gtm.js

138 ms

longevity_enduralife_logo_320x99.png

longevity_enduralife_logo_320x99.png

83 ms

BSC_wtag_541blue_rgb%20150%20x%2090.png

BSC_wtag_541blue_rgb%20150%20x%2090.png

82 ms

longevity_enduralife_logo_300x99.png

longevity_enduralife_logo_300x99.png

39 ms

menu-line.svg

menu-line.svg

6 ms

HeartLogic-Mask-Desktop.jpg

HeartLogic-Mask-Desktop.jpg

95 ms

battery_life_icon_77x70.png

battery_life_icon_77x70.png

40 ms

image.img.cq5dam.web.1280.1280-new.jpg

image.img.cq5dam.web.1280.1280-new.jpg

25 ms

image3.jpg

image3.jpg

125 ms

Image2.png

Image2.png

94 ms

EMAILenvelope.png

EMAILenvelope.png

125 ms

SST-Roman.woff

SST-Roman.woff

138 ms

fa-solid-900.woff

fa-solid-900.woff

113 ms

SST-Bold.woff

SST-Bold.woff

155 ms

fa-regular-400.woff

fa-regular-400.woff

125 ms

Accessibility Review

devicelongevity.com accessibility score

79

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

Image elements do not have [alt] attributes

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

devicelongevity.com 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

High

Missing source maps for large first-party JavaScript

SEO Factors

devicelongevity.com SEO score

75

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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 doesn't use 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 Devicelongevity.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 Devicelongevity.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

devicelongevity.com

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