Tools & Wizards About Us
davidtanzer.net screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

davidtanzer.net

David Tanzer - Coach Consultant Trainer | David Tanzer is a coach / consultant in the software industry. He helps his clients to get better at softwar...

Page Load Speed

3 sec in total

First Response

257 ms

Resources Loaded

2.5 sec

Page Rendered

195 ms

davidtanzer.net screenshot

About Website

Visit davidtanzer.net now to see the best up-to-date David Tanzer content for India and also check out these interesting facts you probably never knew about davidtanzer.net

David Tanzer is a coach / consultant in the software industry. He helps his clients to get better at software development and to develop better, higher-quality software. Here you can find out more abo...

Visit davidtanzer.net

Key Findings

We analyzed Davidtanzer.net page load time and found that the first response time was 257 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

davidtanzer.net performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

79/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.132

81/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

davidtanzer.net

257 ms

davidtanzer.net

447 ms

www.davidtanzer.net

548 ms

main.css

131 ms

profile_widget.png

697 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 90% of them (18 requests) were addressed to the original Davidtanzer.net, 5% (1 request) were made to Coaches.xing.com and 5% (1 request) were made to Wkoecg.at. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Davidtanzer.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 47.3 kB (7%)

Content Size

637.4 kB

After Optimization

590.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Davidtanzer.net main page is 637.4 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. 20% of websites need less resources to load. Images take 575.1 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 6.2 kB

  • Original 9.4 kB
  • After minification 9.1 kB
  • After compression 3.2 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 6.2 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 17 B

  • Original 575.1 kB
  • After minification 575.1 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. David Tanzer images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 3.1 kB

  • Original 4.1 kB
  • After minification 3.5 kB
  • After compression 1.1 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 3.1 kB or 74% of the original size.

CSS Optimization

-78%

Potential reduce by 38.1 kB

  • Original 48.7 kB
  • After minification 47.3 kB
  • After compression 10.6 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. Davidtanzer.net needs all CSS files to be minified and compressed as it can save up to 38.1 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (36%)

Requests Now

11

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of David Tanzer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

davidtanzer.net

davidtanzer.net

257 ms

davidtanzer.net

davidtanzer.net

447 ms

www.davidtanzer.net

www.davidtanzer.net

548 ms

main.css

main.css

131 ms

profile_widget.png

profile_widget.png

697 ms

ecg.gif

ecg.gif

547 ms

dtn.js

dtn.js

244 ms

person.svg

person.svg

311 ms

aap_book.png

aap_book.png

1045 ms

amazon-logo_black.png

amazon-logo_black.png

455 ms

deferred.css

deferred.css

129 ms

arvo.css

arvo.css

136 ms

opensans.css

opensans.css

129 ms

fontawesome-all.min.css

fontawesome-all.min.css

324 ms

OpenSans-Bold.ttf

OpenSans-Bold.ttf

354 ms

OpenSans-Regular.ttf

OpenSans-Regular.ttf

439 ms

Arvo-Bold.ttf

Arvo-Bold.ttf

278 ms

Arvo-Regular.ttf

Arvo-Regular.ttf

262 ms

OpenSans-Italic.ttf

OpenSans-Italic.ttf

481 ms

OpenSans-BoldItalic.ttf

OpenSans-BoldItalic.ttf

614 ms

Accessibility Review

davidtanzer.net accessibility score

95

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

Links do not have a discernible name

Best Practices

davidtanzer.net 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

SEO Factors

davidtanzer.net SEO score

89

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Davidtanzer.net 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 Davidtanzer.net 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

davidtanzer.net

Open Graph data is detected on the main page of David Tanzer. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: