Tools & Wizards About Us
tarekamr.com screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

tarekamr.com

Tarek Amr | Machine Learning Data Scientist & Author

Page Load Speed

4.1 sec in total

First Response

504 ms

Resources Loaded

1.8 sec

Page Rendered

1.7 sec

tarekamr.com screenshot

About Website

Visit tarekamr.com now to see the best up-to-date Tarek Amr content and also check out these interesting facts you probably never knew about tarekamr.com

Machine Learning Data Scientist and Author, based in the Netherlands. Check my latest books on Scikit-Learn, Python and D3.js here

Visit tarekamr.com

Key Findings

We analyzed Tarekamr.com page load time and found that the first response time was 504 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

tarekamr.com performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.642

9/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

tarekamr.com

504 ms

bootstrap.min.css

240 ms

css

468 ms

css

485 ms

css

498 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 50% of them (10 requests) were addressed to the original Tarekamr.com, 15% (3 requests) were made to Fonts.googleapis.com and 10% (2 requests) were made to Stackpath.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Tarekamr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.1 kB (11%)

Content Size

944.2 kB

After Optimization

838.1 kB

  • HTML
  • Images

In fact, the total size of Tarekamr.com main page is 944.2 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. 50% of websites need less resources to load. Images take 928.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 11.1 kB

  • Original 16.2 kB
  • After minification 15.0 kB
  • After compression 5.0 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 11.1 kB or 69% of the original size.

Image Optimization

-10%

Potential reduce by 95.0 kB

  • Original 928.0 kB
  • After minification 833.0 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. Tarek Amr images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 7 (41%)

Requests Now

17

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tarek Amr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tarekamr.com

tarekamr.com

504 ms

bootstrap.min.css

bootstrap.min.css

240 ms

css

css

468 ms

css

css

485 ms

css

css

498 ms

tarekamr.css

tarekamr.css

434 ms

js

js

643 ms

jquery-3.5.1.slim.min.js

jquery-3.5.1.slim.min.js

478 ms

popper.min.js

popper.min.js

478 ms

bootstrap.min.js

bootstrap.min.js

427 ms

tarekamr.jpg

tarekamr.jpg

1135 ms

mlbook.jpg

mlbook.jpg

1048 ms

d3book.jpg

d3book.jpg

1003 ms

bayesian_ab_test.jpg

bayesian_ab_test.jpg

1001 ms

linkedin-bw.png

linkedin-bw.png

597 ms

github-bw.png

github-bw.png

827 ms

twitter-bw.png

twitter-bw.png

1002 ms

medium-bw.png

medium-bw.png

1074 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrQ.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrQ.ttf

401 ms

buEzpo6gcdjy0EiZMBUG4C0f-A.ttf

buEzpo6gcdjy0EiZMBUG4C0f-A.ttf

383 ms

Accessibility Review

tarekamr.com accessibility score

90

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

tarekamr.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

tarekamr.com SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Tarekamr.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 Tarekamr.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

tarekamr.com

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