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at91.com screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

at91.com

WebHome < Linux4SAM < TWiki

Page Load Speed

3.7 sec in total

First Response

327 ms

Resources Loaded

3 sec

Page Rendered

318 ms

at91.com screenshot

About Website

Visit at91.com now to see the best up-to-date At 91 content for United States and also check out these interesting facts you probably never knew about at91.com

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Key Findings

We analyzed At91.com page load time and found that the first response time was 327 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

at91.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.195

63/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

at91.com

327 ms

www.at91.com

758 ms

jcemediabox.css

202 ms

style.css

201 ms

modal.css

202 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 82% of them (36 requests) were addressed to the original At91.com, 7% (3 requests) were made to Google-analytics.com and 5% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (930 ms) belongs to the original domain At91.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 635.2 kB (51%)

Content Size

1.2 MB

After Optimization

609.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of At91.com main page is 1.2 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. 30% of websites need less resources to load. Javascripts take 827.4 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 49.9 kB

  • Original 71.1 kB
  • After minification 69.7 kB
  • After compression 21.2 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 49.9 kB or 70% of the original size.

Image Optimization

-3%

Potential reduce by 8.4 kB

  • Original 304.8 kB
  • After minification 296.5 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. At 91 images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 544.8 kB

  • Original 827.4 kB
  • After minification 822.0 kB
  • After compression 282.6 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 544.8 kB or 66% of the original size.

CSS Optimization

-78%

Potential reduce by 32.1 kB

  • Original 41.2 kB
  • After minification 35.5 kB
  • After compression 9.1 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. At91.com needs all CSS files to be minified and compressed as it can save up to 32.1 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (60%)

Requests Now

42

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of At 91. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

at91.com

at91.com

327 ms

www.at91.com

www.at91.com

758 ms

jcemediabox.css

jcemediabox.css

202 ms

style.css

style.css

201 ms

modal.css

modal.css

202 ms

mootools-core.js

mootools-core.js

499 ms

core.js

core.js

203 ms

caption.js

caption.js

293 ms

jcemediabox.js

jcemediabox.js

595 ms

modal.js

modal.js

398 ms

mootools-more.js

mootools-more.js

895 ms

screen.css

screen.css

398 ms

main.css

main.css

492 ms

menu.css

menu.css

600 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

930 ms

common.js

common.js

689 ms

addthis_widget.js

addthis_widget.js

9 ms

ga.js

ga.js

31 ms

print.css

print.css

109 ms

bg_repeat.jpg

bg_repeat.jpg

498 ms

topBar_bg.jpg

topBar_bg.jpg

200 ms

logo_atmel.png

logo_atmel.png

201 ms

mainBg_top.gif

mainBg_top.gif

204 ms

logo_at91.png

logo_at91.png

202 ms

Atmel_SAMA5D4_AT91_Banner_950x222_092214.jpg

Atmel_SAMA5D4_AT91_Banner_950x222_092214.jpg

691 ms

menu_bg.jpg

menu_bg.jpg

400 ms

share.jpg

share.jpg

398 ms

AUTOCAMP_AT91_225x109_Final.jpg

AUTOCAMP_AT91_225x109_Final.jpg

400 ms

atmel_A5D3_at_91_225x109.jpg

atmel_A5D3_at_91_225x109.jpg

401 ms

samd20_225x109.jpg

samd20_225x109.jpg

596 ms

mainBg_bottom.gif

mainBg_bottom.gif

596 ms

sBlock_top.jpg

sBlock_top.jpg

535 ms

li_star.jpg

li_star.jpg

536 ms

lBlock_top.jpg

lBlock_top.jpg

630 ms

li_topic2.jpg

li_topic2.jpg

732 ms

footer_bg.jpg

footer_bg.jpg

726 ms

__utm.gif

__utm.gif

52 ms

insight.min.js

insight.min.js

42 ms

popup.html

popup.html

777 ms

tooltip.html

tooltip.html

776 ms

300lo.json

300lo.json

53 ms

__utm.gif

__utm.gif

13 ms

sh.7c7179124ea24ac6ba46caac.html

sh.7c7179124ea24ac6ba46caac.html

34 ms

14 ms

Accessibility Review

at91.com accessibility score

79

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

Form elements do not have associated labels

Best Practices

at91.com best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

at91.com SEO score

67

Search Engine Optimization Advices

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 At91.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 At91.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

at91.com

Open Graph description is not detected on the main page of At 91. 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: