Tools & Wizards About Us
at91.com screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% 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

  • 67

    SEO

    Google-friendlier than
    26% of websites

at91.com

Linux4SAM - Developer Help

Page Load Speed

4 sec in total

First Response

247 ms

Resources Loaded

2.9 sec

Page Rendered

930 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

Linux4SAM

Visit at91.com

Key Findings

We analyzed At91.com page load time and found that the first response time was 247 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

at91.com performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

17/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.179

67/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

at91.com

247 ms

www.linux4sam.org

401 ms

Linux4SAM

1382 ms

style.css

129 ms

jquery.js

264 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original At91.com, 98% (47 requests) were made to Linux4sam.org. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Linux4sam.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 120.5 kB (16%)

Content Size

754.3 kB

After Optimization

633.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of At91.com main page is 754.3 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. 25% of websites need less resources to load. Images take 550.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 107.6 kB

  • Original 123.3 kB
  • After minification 118.1 kB
  • After compression 15.8 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 107.6 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 1.6 kB

  • Original 550.9 kB
  • After minification 549.3 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

-10%

Potential reduce by 6.5 kB

  • Original 64.0 kB
  • After minification 64.0 kB
  • After compression 57.5 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

-30%

Potential reduce by 4.8 kB

  • Original 16.0 kB
  • After minification 14.9 kB
  • After compression 11.2 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 4.8 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (73%)

Requests Now

45

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 45 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 14 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

at91.com

at91.com

247 ms

www.linux4sam.org

www.linux4sam.org

401 ms

Linux4SAM

Linux4SAM

1382 ms

style.css

style.css

129 ms

jquery.js

jquery.js

264 ms

jquery-migrate.js

jquery-migrate.js

199 ms

jquery-all.css

jquery-all.css

197 ms

jquery-all.js

jquery-all.js

201 ms

behaviour.compressed.js

behaviour.compressed.js

202 ms

twikilib.js

twikilib.js

202 ms

twikiWindow.js

twikiWindow.js

261 ms

twikiEvent.js

twikiEvent.js

289 ms

twikiHTML.js

twikiHTML.js

290 ms

twikiCSS.js

twikiCSS.js

290 ms

twikiForm.js

twikiForm.js

290 ms

pattern.js

pattern.js

324 ms

base.css

base.css

326 ms

layout.css

layout.css

325 ms

style.css

style.css

333 ms

colors.css

colors.css

334 ms

mystyle.css

mystyle.css

335 ms

print.css

print.css

387 ms

twikiStyles.js

twikiStyles.js

389 ms

twist.css

twist.css

389 ms

twikiPref.js

twikiPref.js

397 ms

twist.compressed.js

twist.compressed.js

398 ms

styles.css

styles.css

480 ms

right-cerulean2x.png

right-cerulean2x.png

68 ms

arrowright.gif

arrowright.gif

70 ms

external-link.gif

external-link.gif

66 ms

new.gif

new.gif

70 ms

thumbs-up.gif

thumbs-up.gif

66 ms

note.gif

note.gif

70 ms

EnsembleGraphicsToolkit-v2-64x204.png

EnsembleGraphicsToolkit-v2-64x204.png

133 ms

sama5d29_curiosity_480x360.jpg

sama5d29_curiosity_480x360.jpg

260 ms

sam9x60_curiosity-480x329.jpg

sam9x60_curiosity-480x329.jpg

196 ms

MicrosoftTeams-image_15-mic.png

MicrosoftTeams-image_15-mic.png

332 ms

SAMA5D2-ICP_480x360.jpg

SAMA5D2-ICP_480x360.jpg

266 ms

SAMA5D27-WLSOM1-EK_480x401.jpg

SAMA5D27-WLSOM1-EK_480x401.jpg

267 ms

sama5d27_som1_ek_480x360.jpg

sama5d27_som1_ek_480x360.jpg

324 ms

toggleopen.gif

toggleopen.gif

261 ms

toggleclose.gif

toggleclose.gif

324 ms

png.gif

png.gif

328 ms

jpg.gif

jpg.gif

332 ms

web-bg-small.gif

web-bg-small.gif

333 ms

tux2_atmel_header.png

tux2_atmel_header.png

388 ms

T-logo-80x15.gif

T-logo-80x15.gif

389 ms

feed-icon-12x12-gray.png

feed-icon-12x12-gray.png

391 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

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

SEO Factors

at91.com SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

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 iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

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: