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robertpetras.com screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

robertpetras.com

Robert Petras • iOS App Developer • Blender 3D Artist

Page Load Speed

1.1 sec in total

First Response

230 ms

Resources Loaded

811 ms

Page Rendered

105 ms

robertpetras.com screenshot

About Website

Welcome to robertpetras.com homepage info - get ready to check Robert Petras best content right away, or after learning these important things about robertpetras.com

Hi, I am Robert Petras an Apple App Developer and Blender 3D Artist living in the European Union. Alse the primary instructor of the SwiftUI Masterclass and Blender 3D Masterclass courses.

Visit robertpetras.com

Key Findings

We analyzed Robertpetras.com page load time and found that the first response time was 230 ms and then it took 916 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

robertpetras.com performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

robertpetras.com

230 ms

robertpetras.com

269 ms

all.css

133 ms

js

64 ms

all.js

240 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 83% of them (5 requests) were addressed to the original Robertpetras.com, 17% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (269 ms) belongs to the original domain Robertpetras.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.3 kB (10%)

Content Size

33.8 kB

After Optimization

30.6 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Robertpetras.com main page is 33.8 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. Only 10% of websites need less resources to load. CSS take 29.2 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 2.9 kB

  • Original 4.5 kB
  • After minification 4.2 kB
  • After compression 1.6 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 2.9 kB or 65% of the original size.

Image Optimization

-8%

Potential reduce by 8 B

  • Original 103 B
  • After minification 95 B

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. Robert Petras images are well optimized though.

CSS Optimization

-1%

Potential reduce by 325 B

  • Original 29.2 kB
  • After minification 29.2 kB
  • After compression 28.9 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. Robertpetras.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Robert Petras. According to our analytics all requests are already optimized.

Network Requests Diagram

robertpetras.com

robertpetras.com

230 ms

robertpetras.com

robertpetras.com

269 ms

all.css

all.css

133 ms

js

js

64 ms

all.js

all.js

240 ms

lazyload-ph.png

lazyload-ph.png

75 ms

Accessibility Review

robertpetras.com accessibility score

87

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

robertpetras.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

SEO Factors

robertpetras.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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Robertpetras.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Robertpetras.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

robertpetras.com

Open Graph data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: