Tools & Wizards About Us
alulab.org screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

alulab.org

homepage Andrea Alu

Page Load Speed

2.2 sec in total

First Response

219 ms

Resources Loaded

1.8 sec

Page Rendered

162 ms

alulab.org screenshot

About Website

Visit alulab.org now to see the best up-to-date Alu Lab content and also check out these interesting facts you probably never knew about alulab.org

Homepage of the website of Andrea Alu

Visit alulab.org

Key Findings

We analyzed Alulab.org page load time and found that the first response time was 219 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

alulab.org performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value11,480 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value29.2 s

0/100

10%

Network Requests Diagram

alulab.org

219 ms

js

80 ms

counter.js

36 ms

highslide.js

137 ms

xr_main.css

131 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 65% of them (58 requests) were addressed to the original Alulab.org, 17% (15 requests) were made to Youtube.com and 3% (3 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (724 ms) belongs to the original domain Alulab.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 154.4 kB (17%)

Content Size

903.5 kB

After Optimization

749.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alulab.org main page is 903.5 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 552.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 31.5 kB

  • Original 38.6 kB
  • After minification 38.0 kB
  • After compression 7.1 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 31.5 kB or 82% of the original size.

Image Optimization

-21%

Potential reduce by 118.0 kB

  • Original 552.4 kB
  • After minification 434.4 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. Obviously, Alu Lab needs image optimization as it can save up to 118.0 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 4.9 kB

  • Original 250.3 kB
  • After minification 250.3 kB
  • After compression 245.5 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

-0%

Potential reduce by 126 B

  • Original 62.1 kB
  • After minification 62.1 kB
  • After compression 62.0 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. Alulab.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (17%)

Requests Now

77

After Optimization

64

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alu Lab. 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 as a result speed up the page load time.

Network Requests Diagram

alulab.org

alulab.org

219 ms

js

js

80 ms

counter.js

counter.js

36 ms

highslide.js

highslide.js

137 ms

xr_main.css

xr_main.css

131 ms

roe.js

roe.js

194 ms

replaceMobileFonts.js

replaceMobileFonts.js

133 ms

prs4.js

prs4.js

135 ms

t.php

t.php

93 ms

counter.js

counter.js

32 ms

t.php

t.php

95 ms

253225.png

253225.png

135 ms

imesKq_kYdo

imesKq_kYdo

122 ms

253104.png

253104.png

74 ms

253226.png

253226.png

74 ms

253105.png

253105.png

75 ms

253227.png

253227.png

188 ms

253228.png

253228.png

188 ms

Cloaking.gif

Cloaking.gif

724 ms

253231.png

253231.png

190 ms

253232.png

253232.png

190 ms

253279.png

253279.png

398 ms

253235.png

253235.png

508 ms

253241.png

253241.png

397 ms

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253153.png

507 ms

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253154.png

506 ms

253243.png

253243.png

508 ms

253244.jpg

253244.jpg

508 ms

253246.png

253246.png

508 ms

253247.png

253247.png

509 ms

253248.png

253248.png

509 ms

253249.png

253249.png

572 ms

253250.png

253250.png

510 ms

253266.png

253266.png

509 ms

253251.jpg

253251.jpg

509 ms

253252.png

253252.png

571 ms

253267.png

253267.png

571 ms

253253.png

253253.png

570 ms

253268.png

253268.png

570 ms

253254.png

253254.png

580 ms

253269.png

253269.png

579 ms

253255.png

253255.png

580 ms

253270.png

253270.png

580 ms

253256.png

253256.png

579 ms

253271.png

253271.png

722 ms

253257.png

253257.png

722 ms

253272.png

253272.png

721 ms

253258.png

253258.png

720 ms

jseHPnqXlPY

jseHPnqXlPY

169 ms

253273.png

253273.png

655 ms

253259.png

253259.png

654 ms

253261.png

253261.png

655 ms

www-player.css

www-player.css

8 ms

253274.png

253274.png

612 ms

www-embed-player.js

www-embed-player.js

33 ms

base.js

base.js

91 ms

253262.png

253262.png

542 ms

253275.png

253275.png

540 ms

253263.png

253263.png

540 ms

253276.png

253276.png

631 ms

ad_status.js

ad_status.js

223 ms

253264.png

253264.png

439 ms

ipZFm28Gb9IO84JlhSe3pftrw2Zo77Fd4SVsdztLQpo.js

ipZFm28Gb9IO84JlhSe3pftrw2Zo77Fd4SVsdztLQpo.js

163 ms

embed.js

embed.js

86 ms

253277.png

253277.png

331 ms

253265.png

253265.png

330 ms

253278.png

253278.png

330 ms

zoomin.cur

zoomin.cur

328 ms

IJhwbK6X-i0aSQsKp1U3hsnnNknGAHH8uGjszq9fxxM.js

IJhwbK6X-i0aSQsKp1U3hsnnNknGAHH8uGjszq9fxxM.js

69 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

46 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

144 ms

id

id

33 ms

Create

Create

115 ms

Create

Create

117 ms

generate_204

generate_204

34 ms

qoe

qoe

9 ms

log_event

log_event

0 ms

custom.png

custom.png

66 ms

zoomout.cur

zoomout.cur

67 ms

qoe

qoe

6 ms

log_event

log_event

0 ms

jseHPnqXlPY

jseHPnqXlPY

13 ms

imesKq_kYdo

imesKq_kYdo

13 ms

imesKq_kYdo

imesKq_kYdo

109 ms

jseHPnqXlPY

jseHPnqXlPY

220 ms

253280.jpg

253280.jpg

264 ms

ad_status.js

ad_status.js

136 ms

Create

Create

207 ms

id

id

57 ms

Accessibility Review

alulab.org accessibility score

88

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

alulab.org best practices score

83

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

Displays images with incorrect aspect ratio

General

Impact

Issue

High

Page has valid source maps

SEO Factors

alulab.org SEO score

93

Search Engine Optimization Advices

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 Alulab.org 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 Alulab.org 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

alulab.org

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