Tools & Wizards About Us
concerta.net screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

concerta.net

CONCERTA® ADHD Rx | Eligible Patients can Pay $4 CONCERTA® Savings Program

Page Load Speed

1.2 sec in total

First Response

40 ms

Resources Loaded

806 ms

Page Rendered

328 ms

concerta.net screenshot

About Website

Click here to check amazing CONCERTA content for United States. Otherwise, check out these important facts you probably never knew about concerta.net

CONCERTA

Visit concerta.net

Key Findings

We analyzed Concerta.net page load time and found that the first response time was 40 ms and then it took 1.1 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

concerta.net performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.544

13/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

concerta.net

40 ms

www.concerta.net

201 ms

gtm.js

100 ms

css2

45 ms

css2

74 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 35% of them (9 requests) were addressed to the original Concerta.net, 27% (7 requests) were made to Fonts.gstatic.com and 12% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (210 ms) relates to the external source Components.janssenos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 297.0 kB (47%)

Content Size

633.1 kB

After Optimization

336.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Concerta.net main page is 633.1 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. 55% of websites need less resources to load. CSS take 250.1 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 71.4 kB

  • Original 84.3 kB
  • After minification 66.8 kB
  • After compression 12.9 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 17.6 kB, which is 21% 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 71.4 kB or 85% of the original size.

Image Optimization

-3%

Potential reduce by 3.8 kB

  • Original 110.4 kB
  • After minification 106.6 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. CONCERTA images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 188.2 kB
  • After minification 188.2 kB
  • After compression 187.1 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

-88%

Potential reduce by 220.6 kB

  • Original 250.1 kB
  • After minification 235.2 kB
  • After compression 29.5 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. Concerta.net needs all CSS files to be minified and compressed as it can save up to 220.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (71%)

Requests Now

17

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CONCERTA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

concerta.net

concerta.net

40 ms

www.concerta.net

www.concerta.net

201 ms

gtm.js

gtm.js

100 ms

css2

css2

45 ms

css2

css2

74 ms

app.css

app.css

177 ms

cpra.css

cpra.css

96 ms

css

css

67 ms

sweetalert2.all.min.js

sweetalert2.all.min.js

60 ms

common.js

common.js

198 ms

handlebars.min.js

handlebars.min.js

44 ms

common.js

common.js

210 ms

noframework.waypoints.min.js

noframework.waypoints.min.js

90 ms

app.js

app.js

197 ms

gtm.js

gtm.js

194 ms

concerta_logo.png

concerta_logo.png

191 ms

header-home-mbl.jpg

header-home-mbl.jpg

142 ms

logo_Janssen.svg

logo_Janssen.svg

101 ms

S6uyw4BMUTPHvxk.ttf

S6uyw4BMUTPHvxk.ttf

62 ms

S6u9w4BMUTPHh7USew8.ttf

S6u9w4BMUTPHh7USew8.ttf

93 ms

S6u9w4BMUTPHh6UVew8.ttf

S6u9w4BMUTPHh6UVew8.ttf

101 ms

S6u9w4BMUTPHh50Xew8.ttf

S6u9w4BMUTPHh50Xew8.ttf

127 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVVpfBJ.ttf

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVVpfBJ.ttf

128 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyWyovBJ.ttf

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyWyovBJ.ttf

127 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyXsovBJ.ttf

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyXsovBJ.ttf

127 ms

acsb.js

acsb.js

132 ms

Accessibility Review

concerta.net accessibility score

89

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

concerta.net best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

concerta.net SEO score

88

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

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 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 Concerta.net 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 Concerta.net 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

concerta.net

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