Tools & Wizards About Us
tandemdiabetes.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

tandemdiabetes.com

Tandem Diabetes Care | Diabetes Management

Page Load Speed

8.1 sec in total

First Response

169 ms

Resources Loaded

7.2 sec

Page Rendered

684 ms

tandemdiabetes.com screenshot

About Website

Click here to check amazing Tandem Diabetes content for United States. Otherwise, check out these important facts you probably never knew about tandemdiabetes.com

Tandem Diabetes Care develops insulin pumps & other products and services that bring innovation, convenience & style to diabetes management.

Visit tandemdiabetes.com

Key Findings

We analyzed Tandemdiabetes.com page load time and found that the first response time was 169 ms and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

tandemdiabetes.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value12.5 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value1,840 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.472

18/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

tandemdiabetes.com

169 ms

tandemdiabetes.com

380 ms

www.tandemdiabetes.com

482 ms

otSDKStub.js

33 ms

css2

36 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 78% of them (57 requests) were addressed to the original Tandemdiabetes.com, 7% (5 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Tandemdiabetes.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (29%)

Content Size

4.8 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tandemdiabetes.com main page is 4.8 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 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 90.9 kB

  • Original 109.3 kB
  • After minification 92.6 kB
  • After compression 18.3 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 16.7 kB, which is 15% 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 90.9 kB or 83% of the original size.

Image Optimization

-26%

Potential reduce by 924.5 kB

  • Original 3.6 MB
  • After minification 2.7 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. Obviously, Tandem Diabetes needs image optimization as it can save up to 924.5 kB or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 15.5 kB

  • Original 474.6 kB
  • After minification 474.4 kB
  • After compression 459.1 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

-54%

Potential reduce by 348.6 kB

  • Original 649.5 kB
  • After minification 649.5 kB
  • After compression 300.8 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. Tandemdiabetes.com needs all CSS files to be minified and compressed as it can save up to 348.6 kB or 54% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (42%)

Requests Now

59

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tandem Diabetes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tandemdiabetes.com

tandemdiabetes.com

169 ms

tandemdiabetes.com

tandemdiabetes.com

380 ms

www.tandemdiabetes.com

www.tandemdiabetes.com

482 ms

otSDKStub.js

otSDKStub.js

33 ms

css2

css2

36 ms

ScriptResource.axd

ScriptResource.axd

461 ms

ScriptResource.axd

ScriptResource.axd

405 ms

main.min.css

main.min.css

1833 ms

owl.carousel.css

owl.carousel.css

401 ms

owl.theme.default.css

owl.theme.default.css

392 ms

fef12fec-6562-4bfd-819c-2aaf419375a5.json

fef12fec-6562-4bfd-819c-2aaf419375a5.json

23 ms

location

location

60 ms

player.js

player.js

37 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

404 ms

main.min.js

main.min.js

405 ms

js.cookie.min.js

js.cookie.min.js

416 ms

notification.js

notification.js

414 ms

patient-navigation.js

patient-navigation.js

471 ms

hero-widget.js

hero-widget.js

477 ms

owl.carousel.min.js

owl.carousel.min.js

554 ms

carousel.js

carousel.js

488 ms

set-language-user-override.js

set-language-user-override.js

493 ms

WebResource.axd

WebResource.axd

550 ms

runtime.cad3534abd418f87.js

runtime.cad3534abd418f87.js

555 ms

polyfills.dbd4e0da1cfc1c5c.js

polyfills.dbd4e0da1cfc1c5c.js

563 ms

main.37962a86e1fa6679.js

main.37962a86e1fa6679.js

569 ms

otBannerSdk.js

otBannerSdk.js

17 ms

runtime.cad3534abd418f87.js

runtime.cad3534abd418f87.js

79 ms

polyfills.dbd4e0da1cfc1c5c.js

polyfills.dbd4e0da1cfc1c5c.js

75 ms

main.37962a86e1fa6679.js

main.37962a86e1fa6679.js

647 ms

gtm.js

gtm.js

246 ms

freshpaint.js

freshpaint.js

142 ms

tandem-logo-horizontal-rgb-2x.svg

tandem-logo-horizontal-rgb-2x.svg

291 ms

tandem-banner-pump-users-kara-emma-920x592.jpg

tandem-banner-pump-users-kara-emma-920x592.jpg

765 ms

tandem-icon-award-green-2x.png

tandem-icon-award-green-2x.png

291 ms

tandem-insulin-pump-mobi-mobile-app-546x486.png

tandem-insulin-pump-mobi-mobile-app-546x486.png

1233 ms

tandem-icon-callout-alpha-green-a-2x.png

tandem-icon-callout-alpha-green-a-2x.png

290 ms

tandem-insulin-pump-tslimx2-mobile-app-546x486.png

tandem-insulin-pump-tslimx2-mobile-app-546x486.png

1134 ms

tandem-icon-callout-alpha-green-b-2x.png

tandem-icon-callout-alpha-green-b-2x.png

386 ms

tandem-icon-question-answer-blue-2x.png

tandem-icon-question-answer-blue-2x.png

387 ms

tandem-pump-user-testimonial-headshot-betsy-360x360.jpg

tandem-pump-user-testimonial-headshot-betsy-360x360.jpg

482 ms

tandem-pump-user-testimonial-headshot-marian-360x360.jpg

tandem-pump-user-testimonial-headshot-marian-360x360.jpg

612 ms

tandem-pump-user-testimonial-headshot-jillian-360x360.jpg

tandem-pump-user-testimonial-headshot-jillian-360x360.jpg

687 ms

tandem-pump-user-testimonial-headshot-madeleine-360x360.jpg

tandem-pump-user-testimonial-headshot-madeleine-360x360.jpg

721 ms

tandem-pump-user-testimonial-headshot-mark-360x360.jpg

tandem-pump-user-testimonial-headshot-mark-360x360.jpg

905 ms

tandem-pump-user-testimonial-headshot-ricky-360x360.jpg

tandem-pump-user-testimonial-headshot-ricky-360x360.jpg

836 ms

tandem-icon-infusion-set-green-2x.png

tandem-icon-infusion-set-green-2x.png

817 ms

tandem-icon-software-updates-green-2x.png

tandem-icon-software-updates-green-2x.png

851 ms

tandem-icon-mobile-app-green-2x.png

tandem-icon-mobile-app-green-2x.png

920 ms

tandem-icon-thumbs-up-green-2x.png

tandem-icon-thumbs-up-green-2x.png

929 ms

tandem-icon-training-green-2x.png

tandem-icon-training-green-2x.png

936 ms

tandem-icon-insulin-pump-green-2x.png

tandem-icon-insulin-pump-green-2x.png

994 ms

tandem-banner-pump-benefits-cgm-920x592.jpg

tandem-banner-pump-benefits-cgm-920x592.jpg

1337 ms

tandem-icon-gear-green-2x.png

tandem-icon-gear-green-2x.png

1008 ms

ai.0.js

ai.0.js

197 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w9.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w9.woff

198 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w9.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu170w9.woff

270 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew9.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew9.woff

299 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew9.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew9.woff

299 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Ew9.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Ew9.woff

299 ms

tandem-banner-pump-users-kara-emma-1920x592.jpg

tandem-banner-pump-users-kara-emma-1920x592.jpg

1953 ms

tandem-banner-pump-benefits-cgm-1920x592.jpg

tandem-banner-pump-benefits-cgm-1920x592.jpg

1474 ms

fa-light-300.ttf

fa-light-300.ttf

4165 ms

fa-regular-400.ttf

fa-regular-400.ttf

3725 ms

fa-solid-900.ttf

fa-solid-900.ttf

3545 ms

tandem-pump-user-testimonial-background-liam-354x532.jpg

tandem-pump-user-testimonial-background-liam-354x532.jpg

2277 ms

tandem-pump-user-testimonial-marian-354x532.jpg

tandem-pump-user-testimonial-marian-354x532.jpg

1735 ms

tandem-pump-user-testimonial-background-jillian-354x532.jpg

tandem-pump-user-testimonial-background-jillian-354x532.jpg

2032 ms

tandem-pump-user-testimonial-background-madeleine-354x532.jpg

tandem-pump-user-testimonial-background-madeleine-354x532.jpg

2158 ms

tandem-pump-user-testimonial-background-mark-354x532.jpg

tandem-pump-user-testimonial-background-mark-354x532.jpg

2538 ms

tandem-pump-user-testimonial-ricky-354x532.jpg

tandem-pump-user-testimonial-ricky-354x532.jpg

2506 ms

d1935506-24cb-4516-8a49-caba6bcca6c5

d1935506-24cb-4516-8a49-caba6bcca6c5

189 ms

integrations.js

integrations.js

4 ms

Accessibility Review

tandemdiabetes.com accessibility score

83

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

tandemdiabetes.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

tandemdiabetes.com SEO score

86

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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 Tandemdiabetes.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 Tandemdiabetes.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

tandemdiabetes.com

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