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knowledgebase.nxp.com screenshot

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

knowledgebase.nxp.com

General Purpose Microcontrollers | NXP Semiconductors

Page Load Speed

7.9 sec in total

First Response

210 ms

Resources Loaded

7.1 sec

Page Rendered

614 ms

knowledgebase.nxp.com screenshot

About Website

Welcome to knowledgebase.nxp.com homepage info - get ready to check Knowledgebase NXP best content for China right away, or after learning these important things about knowledgebase.nxp.com

Bringing the best of Kinetis and LPC Arm Cortex-M core technology, NXP general purpose MCUs are backed by unmatched enablement, longevity support, and an extensive partner ecosystem.

Visit knowledgebase.nxp.com

Key Findings

We analyzed Knowledgebase.nxp.com page load time and found that the first response time was 210 ms and then it took 7.7 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

knowledgebase.nxp.com performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value8,940 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.4

25/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

knowledgebase.nxp.com

210 ms

lpcxpresso-forum

184 ms

general-purpose-mcus:GENERAL-PURPOSE-MCUS

36 ms

bootstrap.css

140 ms

jquery.min3.1.js

46 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Knowledgebase.nxp.com, 84% (31 requests) were made to Nxp.com and 3% (1 request) were made to Lpcware.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Nxp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 747.4 kB (53%)

Content Size

1.4 MB

After Optimization

667.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Knowledgebase.nxp.com main page is 1.4 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. 65% of websites need less resources to load. Javascripts take 886.5 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 138.6 kB

  • Original 178.0 kB
  • After minification 163.7 kB
  • After compression 39.4 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 138.6 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 13 B

  • Original 96.6 kB
  • After minification 96.6 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. Knowledgebase NXP images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 608.1 kB

  • Original 886.5 kB
  • After minification 879.2 kB
  • After compression 278.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 608.1 kB or 69% of the original size.

CSS Optimization

-0%

Potential reduce by 611 B

  • Original 253.3 kB
  • After minification 253.3 kB
  • After compression 252.7 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. Knowledgebase.nxp.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (57%)

Requests Now

28

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Knowledgebase NXP. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

knowledgebase.nxp.com

knowledgebase.nxp.com

210 ms

lpcxpresso-forum

lpcxpresso-forum

184 ms

general-purpose-mcus:GENERAL-PURPOSE-MCUS

general-purpose-mcus:GENERAL-PURPOSE-MCUS

36 ms

bootstrap.css

bootstrap.css

140 ms

jquery.min3.1.js

jquery.min3.1.js

46 ms

bootstrap.min.3.3.7.js

bootstrap.min.3.3.7.js

56 ms

jquery.mmenu.all.min.js

jquery.mmenu.all.min.js

56 ms

framework-loader.js

framework-loader.js

59 ms

webanalytics.js

webanalytics.js

59 ms

nxp-web.min.css

nxp-web.min.css

131 ms

nxp_containers_left_nav.css

nxp_containers_left_nav.css

67 ms

thought-leadership-v3.css

thought-leadership-v3.css

68 ms

nxp_containers.css

nxp_containers.css

76 ms

launch-ENfc50003a4794497d8543816e283aeae8.min.js

launch-ENfc50003a4794497d8543816e283aeae8.min.js

98 ms

global-bundle.js

global-bundle.js

828 ms

webanalytics_download.js

webanalytics_download.js

77 ms

hxafQsC

hxafQsC

95 ms

bootstrap.css

bootstrap.css

22 ms

activity.js

activity.js

597 ms

loadOneTrustInHead.js

loadOneTrustInHead.js

596 ms

9A5SG-ZLHFG-266XZ-3SBXK-MAXXJ

9A5SG-ZLHFG-266XZ-3SBXK-MAXXJ

127 ms

GeneralPurposeFeatures.svg

GeneralPurposeFeatures.svg

59 ms

GeneralPurposeFeaturesMobile.svg

GeneralPurposeFeaturesMobile.svg

62 ms

MCUXpresso.svg

MCUXpresso.svg

81 ms

PRODUCT-LONGEVITY-LOGO.png

PRODUCT-LONGEVITY-LOGO.png

112 ms

NunitoSans-Bold.woff

NunitoSans-Bold.woff

73 ms

NunitoSans-Black.woff

NunitoSans-Black.woff

70 ms

NunitoSans-Regular.woff

NunitoSans-Regular.woff

71 ms

fa-regular-400.woff

fa-regular-400.woff

73 ms

BL-MEET-MCX-OG.jpg

BL-MEET-MCX-OG.jpg

93 ms

config.json

config.json

98 ms

verification.svg

verification.svg

1891 ms

label-translations.json

label-translations.json

339 ms

hxafQsC

hxafQsC

3069 ms

elqCfg.min.js

elqCfg.min.js

83 ms

NXP-NEWS-en.js

NXP-NEWS-en.js

19 ms

svrGP.aspx

svrGP.aspx

78 ms

Accessibility Review

knowledgebase.nxp.com accessibility score

79

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 IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

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

knowledgebase.nxp.com best practices score

75

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

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

knowledgebase.nxp.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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Knowledgebase.nxp.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Knowledgebase.nxp.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

knowledgebase.nxp.com

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